To see the other types of publications on this topic, follow the link: Reef resources assessment and management.
Journal articles on the topic 'Reef resources assessment and management'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Reef resources assessment and management.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Albert, Simon, Alifereti Tawake, Ron Vave, Paul Fisher, and Alistair Grinham. "Indicators of herbivorous fish biomass in community-based marine management areas in Fiji." Pacific Conservation Biology 22, no. 1 (2016): 20. http://dx.doi.org/10.1071/pc15051.
Full textAbstract:
There has been a resurgence in community-based management of coral reef resources in the developing world over the last two decades. However, many of the threats to reef ecosystems are increasing at a rate beyond local knowledge acquisition. Consequently, there is a continuing need for management tools and monitoring to support community-based approaches. Using algal, fish and reef indicators we provide a rapid assessment method of herbivorous fishes in Locally Managed Marine Areas in Fiji. The algal indicator technique provided a time-integrated assessment of the process of herbivory within Locally Managed Marine Areas and could be used by untrained community members to quantify management responses. Generally, reefs with higher herbivore biomass had a diverse low biomass of algae typical of healthy reefs. Reefs with fewer herbivores had a higher biomass of turf or leathery algae typical of degraded reefs. These results show that simple ecological indicators can be a useful addition to the existing local knowledge that underpins community-based management.
2
Pattiasina, Selfinus, and Fatmawati Marasabessy. "Assessment of Coral Reef Condition and Management Strategy in the Biak Timur Watershed, Biak Numfor." Agrikan: Jurnal Agribisnis Perikanan 13, no. 2 (January 18, 2021): 517–25. http://dx.doi.org/10.29239/j.agrikan.13.2.517-525.
Full textAbstract:
This study aims to assess the condition of the coral reef ecosystem in East Biak waters and formulate a strategy for optimal and sustainable management of coral reef ecosystems in the waters of East Biak, Biak Numfor Regency. Data and information were collected through the application of various methods, namely field surveys using transect techniques, interviews using questionnaires and document tracing. The data analysis method consisted of analyzing the condition of the coral reef ecosystem, SWOT analysis. The results showed that the waters of East Biak had very varied coral reef ecosystem conditions with a range of 22 - 85% with an average percentage of coral cover of 68.78% and when compared to the percentage of coral cover in 2018 there was an increase of 12%, although found in some location has decreased. In the management of coral reef ecosystems in this area there is support from the government, but due to budget constraints, the management has not been carried out optimally. From the analysis, several management alternatives are recommended, namely; (1) Optimizing coral reef management through; zoning arrangements for coastal and marine areas, increasing community, private and government participation in coral reef management and strengthening regional regulations; (2) Conservation and rehabilitation of coral reef ecosystems through; strengthening regional marine conservation areas, carrying out conservation and rehabilitation of coral reef ecosystems, regulating fish utilization activities in the area, integrated law enforcement and strengthening community-based monitoring and supervision systems; and (3) Increasing the quality of life of the community through; public awareness of the importance of coral reefs, community empowerment, repositioning of community livelihoods and developing technology for the utilization of marine biological resources that are effective and environmentally friendly.
3
Nugroho, Supradianto, Takuro Uehara, and Yori Herwangi. "Interpreting Daly’s Sustainability Criteria for Assessing the Sustainability of Marine Protected Areas: A System Dynamics Approach." Sustainability 11, no. 17 (August 24, 2019): 4609. http://dx.doi.org/10.3390/su11174609.
Full textAbstract:
Sustainability assessments of marine protected areas (MPAs) are essential for improving the effectiveness of management efforts. Since sustainability is closely related to the concept of intergenerational well-being, measuring and tracking it through time is crucial. Therefore, this study will use the system dynamics approach applied at Pieh marine park as the study site. A system dynamics model was built comprising four sub-models: fish population dynamics, coral reef coverage, tourism, and pollution. The goodness-of-fit test of the model indicated low and unsystematic model error. The sustainability assessment was conducted using the three principles of sustainability proposed by Herman Daly, which define sustainability for resource management based on the change in the amount of renewable resources, non-renewable resources, and pollution. The sustainability assessment determined that Pieh marine park cannot sustain economic activities in its area, indicated by decreasing renewable resource indicators in the form of fish population dynamics, coral reef coverage, and increasing pollution levels. Several management interventions can be applied to improve sustainability, including lowering the total allowable catch, coral transplantation, and improved waste management.
4
Singh, Ashneel Ajay, Anish Maharaj, and Priyatma Singh. "Benthic Resource Baseline Mapping of Cakaunisasi and Yarawa Reef Ecosystem in the Ba Region of Fiji." Water 13, no. 4 (February 11, 2021): 468. http://dx.doi.org/10.3390/w13040468.
Full textAbstract:
Coastal habitats form a critical source of livelihood for a large number of inhabitants in Fiji. The absence of historical and baseline information creates a significant challenge in effectively designing suitable management plans. This study aimed at developing reliable benthic cover maps of village intertidal resource harvest areas (Cakaunisasi and Yarawa reefs) and anthropogenic perceptions of Votua Village in the Ba region of Fiji for better resource management planning and monitoring. Images captured by the WorldView2 satellite were used as a base for mapping out the resources. Data logging on-site, Global Positioning System (GPS) recordings, local interviews and high-resolution video capturing were utilised for ground-truthing techniques. Six classes of benthic cover were identified, which included algae, coral, sand and gravel, buried reef, coral rubble and seagrass. Accuracy assessment and supervised classification were done using ground reference points. There was an existing marine protected area (MPA) on the Yarawa reef, which did not seem to be working as well as anticipated by observing the habitat maps of the two reefs. Baseline maps constructed here and possibly ecosystem maps can allow for monitoring of the existing MPA as well as the formation of a new and more informed MPA. The maps generated in this study serve as baseline information about resource distribution on Cakaunisasi and Yarawa reefs to inform management decisions.
5
Gibbs, David A., Jordan M. West, and Patricia Bradley. "Incorporating adaptation and resilience into an integrated watershed and coral reef management plan." PLOS ONE 16, no. 6 (June 24, 2021): e0253343. http://dx.doi.org/10.1371/journal.pone.0253343.
Full textAbstract:
Changing environmental conditions are forcing natural resource managers and communities to adapt their strategies to account for global shifts in precipitation, temperature, sea level and more, all of which are occurring in addition to local human impacts. Adapting to threats from climate change requires a fundamental shift in the practice of natural resource management through the development of forward-looking “climate-smart” goals and strategies. Here we present a proof-of-concept application of a decision-support tool to help design climate-smart management actions for the watershed and coral reef management plan for Guánica Bay watershed in southwest Puerto Rico. We also explore the connection between adaptation planning and coral reef resilience, using a recently developed Puerto Rico-wide reef resilience assessment. In the first phase of the study, we used the publicly available Adaptation Design Tool to draft initial climate-smart versions of twelve proposed management actions. In the second phase, two actions (dirt road management on steep slopes, and coral reef restoration) were further refined through consultations with local experts to make more detailed design adjustments; this included the option to use information from the coral reef resilience assessment to inform design improvements. The first phase resulted in moderately detailed assessments that broadly accounted for anticipated direct and indirect effects of climate change on the planned management actions. The second phase resulted in more site-specific technical assessments and additional important design details. The expert panel charged with discussing climate-smart reef restoration around Guánica used the reef resilience assessment to guide discussion of reef restoration, highlighting the importance of having such information available for adaptation planning. This study demonstrates how climate change impacts can be effectively incorporated into a management plan at the most granular level of planning and how a structured, formalized process can be as valuable as the resulting adaptation information.
6
Carral, Luis, Carolina Camba Fabal, Mª Isabel Lamas Galdo, Mª Jesús Rodríguez-Guerreiro, and Juan José Cartelle Barros. "Assessment of the Materials Employed in Green Artificial Reefs for the Galician Estuaries in Terms of Circular Economy." International Journal of Environmental Research and Public Health 17, no. 23 (November 28, 2020): 8850. http://dx.doi.org/10.3390/ijerph17238850.
Full textAbstract:
To exploit marine resources in a sustainable way, efficient management systems must be used such as green artificial reefs (GARs). These reefs are mostly made up of renewable and organic materials. When adopting the circular economy (CE) model, industrial processes must be reconsidered. By adapting how conventional artificial reefs (CARs) are engineered and produced to embrace the principles of the CE, certain materials can be used. Renewable resources are designed to be reintroduced into the biosphere without producing harmful organic residues or nutrients. Within a framework that covers economic, environmental and social considerations, this study offers four new proposals related to substituting the materials destined for the components in an artificial reef. For the first time, two different methodologies were applied to determine the best alternative in terms of its contribution to both sustainability and CE. From the results obtained, the best solutions are in line with substituting a certain amount of the cement and sand with mussel shells. The importance of the results lies in the fact that the canning industry in Galicia (northwest Spain) generates shell residues which promote grave environmental consequences.
7
Smallhorn-West, Patrick, Sophie Gordon, Karen Stone, Daniela Ceccarelli, Siola’a Malimali, Tu’ikolongahau Halafihi, Mathew Wyatt, Tom Bridge, Robert Pressey, and Geoffrey Jones. "Biophysical and anthropogenic influences on the status of Tonga’s coral reefs and reef fish fishery." PLOS ONE 15, no. 11 (November 17, 2020): e0241146. http://dx.doi.org/10.1371/journal.pone.0241146.
Full textAbstract:
Despite increasing threats to Tonga’s coral reefs from stressors that are both local (e.g. overfishing and pollution) and global (e.g. climate change), there is yet to be a systematic assessment of the status of the country’s coral reef ecosystem and reef fish fishery stocks. Here, we provide a national ecological assessment of Tonga’s coral reefs and reef fish fishery using ecological survey data from 375 sites throughout Tonga’s three main island groups (Ha’apai, Tongatapu and Vava’u), represented by seven key metrics of reef health and fish resource status. Boosted regression tree analysis was used to assess and describe the relative importance of 11 socio-environmental variables associated with these key metrics of reef condition. Mean live coral cover across Tonga was 18%, and showed a strong increase from north to south correlated with declining sea surface temperature, as well as with increasing distance from each provincial capital. Tongatapu, the southernmost island group, had 2.5 times greater coral cover than the northernmost group, Vava’u (24.9% and 10.4% respectively). Reef fish species richness and density were comparable throughout Tongatapu and the middle island group, Ha’apai (~35 species/transect and ~2500 fish/km2), but were significantly lower in Vava’u (~24 species/transect and ~1700 fish/km2). Spatial patterns in the reef fish assemblage were primarily influenced by habitat-associated variables (slope, structural complexity, and hard coral cover). The biomass of target reef fish was greatest in Ha’apai (~820 kg/ha) and lowest in Vava’u (~340 kg/ha), and was negatively associated with higher human influence and fishing activity. Overall mean reef fish biomass values suggest that Tonga’s reef fish fishery can be classified as moderately to heavily exploited, with 64% of sites having less than 500 kg/ha. This study provides critical baseline ecological information for Tonga’s coral reefs that will: (1) facilitate ongoing management and research; and (2) enable accurate reporting on conservation targets locally and internationally.
8
Putra, Singgih A., Helmy Akbar, and Indra A. Syari. "Shallow-water hard corals (Hexacorallia: Scleractinia) from Bangka Belitung Islands Waters, Indonesia." Aceh Journal of Animal Science 4, no. 2 (October 31, 2019): 89–98. http://dx.doi.org/10.13170/ajas.4.2.14571.
Full textAbstract:
Bangka Belitung Islands (Sumatra, Indonesia) has various coastal resources, e.g., coral reefs, seagrass beds, mangrove forests. However, the coral community has been threatened by anthropogenic activities, i.e., tin mining and illegal tin mining. Threatened species assessment is important for mitigation of coral losses and management. The ojective of the present study was to examine the status of Scleractinian corals in Bangka Belitung Islands, Indonesia. A line intercept transect was performed for the coral reef survey. Live and dead coral cover were recorded in the three locations. Corals species were identified following taxonomic revisions. The results showed that there were 142 species of Scleractinian corals recorded from Bangka Belitung Islands. Of these, 22 species are the new report from the areas of the the eastern part of Belitung Island. Family of Merulinidae, Acroporidae, and Poritidae were predominant group in this region. It is concluded that the condition of the coral reef ecosystem in the Belitung Islands is relatively good, but fair in Gaspar Strait and Bangka Island. Keywords: Coral cover, coral diversity, hard coral, Scleractinia
9
Herr, A., and P. M. Kuhnert. "Assessment of uncertainty in Great Barrier Reef catchment models." Water Science and Technology 56, no. 1 (July 1, 2007): 181–88. http://dx.doi.org/10.2166/wst.2007.450.
Full textAbstract:
This paper addresses uncertainty in socio-economic and sediment-nutrient models that are being developed for the assessment of change in the Great Barrier Reef (GBR) area. The catchments draining into the GBR lagoon are sources of pollutants. The Reef Water Quality Management Plan of the Queensland Government identified sediments and nutrients transported to the GBR lagoon as the major long-term threats to the reef and inshore ecosystems and the wellbeing of the human communities. The plan clearly indicates that changes in land management are required by 2013 to reduce pollutant inputs and, at the same time, maintain or enhance the benefits from using the inland waters. Science that provides decision tools for natural resource management and improves socio-economic and biophysical understanding is required to enable managers to make better decisions. A major research activity (the Water for a Healthy Country Flagship) aims to address social, economic and biophysical outcomes of land management change in the GBR. It contains research activities that provide information for integrated model development. Currently, however, these models lack the ability to estimate the uncertainty associated with prediction. This project aims to provide statistical methods for assessing uncertainty in models of sediment transportation to the GBR. Furthermore, it provides a link between the models and the decision-making process that allows assessment of uncertainty, a step pertinent to the risk analysis of policy options. This paper describes current and ongoing approaches for assessing uncertainty using a sediment modelling example and provides a way forward for the integration of applied socio-economic and biophysical models used in the decision-making process.
10
Trudel, B. K., R. C. Belore, B. J. Jessiman, and S. L. Ross. "A MICROCOMPUTER-BASED SPILL IMPACT ASSESSMENT SYSTEM FOR UNTREATED AND CHEMICALLY DISPERSED OIL SPILLS IN THE U.S. GULF OF MEXICO." International Oil Spill Conference Proceedings 1989, no. 1 (February 1, 1989): 533–37. http://dx.doi.org/10.7901/2169-3358-1989-1-533.
Full textAbstract:
ABSTRACT A microcomputer-based spill impact assessment system has been developed and applied to the problem of making oil spill impact predictions and real-time dispersant use decisions for the U. S. Gulf of Mexico and the Atlantic coast of Florida. The system predicts the effects of chemically-dispersed and untreated spills on 70 important resources, including oil-sensitive habitats (salt marsh, coral reef) ecologically and economically important species, and shorelines and property. Impact is estimated by means of a model that integrates the effects of such variables as spill conditions, oil properties, environmental conditions, oil toxicity, and resource vulnerability. When used for decision making on dispersant use, the system computes the risk to all or a selected group of resources for a given spill when the spill is treated with dispersants (assuming complete or partial dispersant effectiveness) and when the spill is left untreated. The system produces a tabular summary of quantitative risk estimates for each resource for each countermeasure strategy. To be effective in making real-time management decisions for spills, the system completes its analysis quickly (in less than one hour for any given spill), is “user-friendly,” and yields detailed information on resource-specific impact calculations that are essential for real-time verification of predicted spill effects. The system has been developed in cooperation with environmental regulation and resource management agencies in the states of Florida, Alabama, Mississippi, Louisiana, and Texas, and with federal government agencies (the National Oceanic and Atmospheric Administration, Minerals Management Service, and the U.S. Coast Guard), and has been funded by the Marine Industry Group.
11
COOKE, ANDREW J., NICHOLAS V. C. POLUNIN, and KOLINIO MOCE. "Comparative assessment of stakeholder management in traditional Fijian fishing-grounds." Environmental Conservation 27, no. 3 (September 2000): 291–99. http://dx.doi.org/10.1017/s0376892900000333.
Full textAbstract:
The customary tenure of reef areas in many parts of the South Pacific offers an obvious context within which fishery resources might be managed cooperatively between customary-rights owners and fisheries personnel in government, yet the local foundations for such co-management have received little critical attention. Seven customary fishing rights areas (CFRAs) in Fiji were the focus of the present study, the objective being to compare management of CFRAs subject to differing levels of fishing access and ascertain those factors most influential to local management practices. The intensity of access (‘access pressure’) was measured as the number of licences issued per CFRA and per unit area, while management was assessed as an index, based on evidence of five aspects of management (management structure, marshalling of information for management, approach to goodwill payments, management measures and patrolling and enforcement) derived from questionnaires. Management varied amongst the CFRAs, one of the seven being essentially unmanaged because of a breakdown in succession between chiefs. There was little evidence for management responding uniformly to access pressure; rather, two CFRAs evinced a certain management aptitude regardless of this pressure, and two other CFRAs evinced relatively little management although pressure was high. A simple survey technique can indicate useful contrasts amongst CFRAs in functional local management, and thus be useful for guiding decisions about where to make investments in local management or co-management.
12
Camacho, Ruleo, Sophia Steele, Shanna Challenger, and Mark Archibald. "Status of coral reefs in Antigua & Barbuda: using data to inform management." PeerJ 8 (June 1, 2020): e9236. http://dx.doi.org/10.7717/peerj.9236.
Full textAbstract:
The nation of Antigua and Barbuda has experienced major degradation of its coral reef ecosystems over the past 40+ years. The primary drivers of this degradation are multiple and are highly linked to anthropogenic influences, including over-exploitation and poor management of marine resources. The effectiveness of management actions in marine protected areas (MPAs) has often been hampered by a lack of data to inform management recommendations. This was emphasized by The Nature Conservancy’s (TNC) Coral Reef Report Card which highlighted not only the lack of data collection in Antigua and Barbuda and other Caribbean nations, but also illustrated how spatially dispersed available datasets are. The government of Antigua and Barbuda recognized the need for a marine data collection program to better inform the designation and management of MPAs as a tool to improve the health of the marine ecosystems. The Atlantic Gulf Rapid Reef Assessment (AGRRA) protocol has been identified as a means to address planning and management for marine areas. Three AGRRA surveys have been conducted in the years following the TNC 2016 report, in previously established managed areas: North East Marine Management Area (NEMMA) in 2017 and Nelson Dockyard National Park (NDNP) in 2019 as well as areas outlined for future management (Redonda in 2018). Our surveys were conducted to provide updated datasets to inform management for the aforementioned areas. While the results of these surveys mirror the underlying poor coral reef-health conditions, which have been shown to exist within the Caribbean region, they also highlight intra-site variation that exists within each survey location. This knowledge can be crucial in guiding management decisions in these marine areas, through zoning and other management prescriptions. Additionally, the marine surveys conducted around Redonda established useful marine baselines to aid in monitoring the island’s recovery following removal of terrestrial invasive species. This article provides an overview of data collected using the AGRRA methodology in marine zones across Antigua and Barbuda which have current or future management prescriptions and provides recommendations to demonstrate the data’s future utilization for marine conservation and management.
13
Fadli, Nur, Siti Azizah Mohd Nor, Ahmad Sofiman Othman, Hizir Sofyan, and Zainal A. Muchlisin. "DNA barcoding of commercially important reef fishes in Weh Island, Aceh, Indonesia." PeerJ 8 (August 5, 2020): e9641. http://dx.doi.org/10.7717/peerj.9641.
Full textAbstract:
Knowledge on the precise identification of fish resources is critical for sustainable fisheries management. This study employs the DNA barcoding approach to generate a molecular taxonomic catalogue of commercially important reef fishes in the waters of Weh Island (Aceh Province), the most northerly inhabited island in the biodiverse Indonesian Archipelago. The waters not only support artisanal fisheries but also a feeder for the industry in the greater island of Aceh. In total, 230 specimens from 72 species belonging to 32 genera and 17 families were DNA barcoded, representing a major segment of the captured reef fish taxa and a quarter of fish species diversity that had previously been recorded. The sequence read lengths were 639 bp revealing 359 conserved sites, 280 variable sites, 269 parsimony informative and 11 singletons. Our molecular findings paralleled the morphological identification with no evidence of cryptic species or new species discovery. This study is a significant contribution to the fisheries statistics of this area, which would facilitate assessment of species catch composition and hence for strategizing management plans. It is an important input to the DNA barcode library of Indonesian marine fishes and to the global DNA barcode entries in general.
14
AULT, JERALD S., STEVEN G. SMITH, JIANGANG LUO, MARK E. MONACO, and RICHARD S. APPELDOORN. "Length-based assessment of sustainability benchmarks for coral reef fishes in Puerto Rico." Environmental Conservation 35, no. 3 (September 2008): 221–31. http://dx.doi.org/10.1017/s0376892908005043.
Full textAbstract:
SUMMARYThe sustainability of multispecies coral reef fisheries is a key conservation concern given their economic and ecological importance. Empirical estimation and numerical model analyses were conducted to evaluate exploitation status via resource reference points (or sustainability benchmarks) for coral reef fishes of the snapper-grouper complex in Puerto Rico. Mean size (L, in length) of animals in the exploited part of the population was estimated from fishery-dependent and fishery-independent size composition data and used as an indicator variable of exploitation rates. In application, fishing mortality rates estimated from L of various data sources were comparable. Of the 25 reef fish species assessed, 16 were below 30% spawning potential ratio (SPR), six were above 30% SPR, and three could not be reliably determined owing to low sample sizes. These findings indicate that a majority of snapper-grouper species in Puerto Rico are currently fished at unsustainable levels.
15
APPELDOORN, RICHARD S. "Transforming reef fisheries management: application of an ecosystem-based approach in the USA Caribbean." Environmental Conservation 35, no. 3 (September 2008): 232–41. http://dx.doi.org/10.1017/s0376892908005018.
Full textAbstract:
SUMMARYFisheries in Puerto Rico and the United States (US) Virgin Islands are predominately dependent on nearshore coral reef ecosystems and have suffered from historical overfishing. The unique characteristics of reef fisheries, including strong habitat dependence, susceptibility to coastal impacts, diffuse landing sites and strong multispecies and multigear interactions suggest that standard approaches to fisheries management, especially those typically considered by the US Regional Fishery Management Councils, would not be applicable. Current management authority is split between local and federal agencies; however, there exists no uniform context and direction to current management initiatives, which results in lost efficiencies and opportunities. Proposed here is a new vision for fisheries management that takes into consideration the local ecological and socioeconomic characteristics of fishing, is compatible with regional resources and capacity, is ecosystem based and targets full stakeholder participation. Only an ecosystem-based approach can lead fisheries management out of the trap of unrealistic data collection and analysis demands, while at the same time refocusing emphasis away from attitudes and practices that promote overfishing. Management must be based on first principles regarding the desired state of the ecosystem and initiate strategies based on these principles. The key management goal is not to maximize fisheries catch, but to maintain the ecosystem in a state that will lead to sustained production. First principles would include maintaining ecosystem integrity and function, protecting all habitats and water quality, applying the precautionary approach, monitoring reference points and recognizing that production has limits. Resulting management tactics include marine reserves (to meet multiple goals), closed spawning aggregations, gear restrictions to maintain trophic balance and habitats, targeted data collection and assessments, adopting co-management practices and using ecosystem or community-based metrics. Fisheries management must fully incorporate the tools, resources and methods available within coastal zone management and other environmental agencies, while standards within those programmes must protect ecosystem health. Implementation will require attending to structural barriers inherent within existing fisheries legislation and regulations, multiple jurisdictions and the current cultures of scientists, managers and fisherfolk. Initial efforts should focus on developing a common language and frame of reference for all stakeholders.
16
Rumahorbo, Basa T., Baigo Hamuna, and Henderina J. Keiluhu. "An assessment of the coastal ecosystem services of Jayapura City, Papua Province, Indonesia." Environmental & Socio-economic Studies 8, no. 2 (June 1, 2020): 45–53. http://dx.doi.org/10.2478/environ-2020-0011.
Full textAbstract:
AbstractThis study aims to assess and quantify the economic value of coastal ecosystem services (CES) in the coastal areas of Jayapura City based on the perceptions of Papuan indigenous peoples. Data collection was conducted from March to April 2018 using the direct interview method based on questionnaires to 228 respondents in Enggros, Tobati, and Nafri villages. The CES value in Jayapura City is estimated to be around USD 5,427,212.34/year, which consists of service values of mangrove, coral reef, and seagrass ecosystems that are USD 4,447,802.85/year or USD 19,079.46/ha/year, USD 424,333.06/year or USD 11,303.49/ha/year, and USD 555,076.43/year or 5,008.36/ha/year, respectively. The value of CES as a provider of fishery products is quite high because of the high desire of the community to exploit and utilize natural resources such as fish, crabs, shrimp, and shellfish in coastal ecosystems to as a food resource. Therefore, with the description of the CES value in this study, good coastal ecosystem management and integrated coastal area development policies are needed to maintain the quality of the environment and the sustainability of coastal ecosystems, as well as efforts to increase public awareness of the importance of coastal ecosystems and the important role that they play in improving the welfare of the Papuan indigenous people.
17
Plagányi, Éva Elizabeth, Timothy Skewes, Nicole Murphy, Ricardo Pascual, and Mibu Fischer. "Crop rotations in the sea: Increasing returns and reducing risk of collapse in sea cucumber fisheries." Proceedings of the National Academy of Sciences 112, no. 21 (May 11, 2015): 6760–65. http://dx.doi.org/10.1073/pnas.1406689112.
Full textAbstract:
Rotational harvesting is one of the oldest management strategies applied to terrestrial and marine natural resources, with crop rotations dating back to the time of the Roman Empire. The efficacy of this strategy for sessile marine species is of considerable interest given that these resources are vital to underpin food security and maintain the social and economic wellbeing of small-scale and commercial fishers globally. We modeled the rotational zone strategy applied to the multispecies sea cucumber fishery in Australia’s Great Barrier Reef Marine Park and show a substantial reduction in the risk of localized depletion, higher long-term yields, and improved economic performance. We evaluated the performance of rotation cycles of different length and show an improvement in biological and economic performance with increasing time between harvests up to 6 y. As sea cucumber fisheries throughout the world succumb to overexploitation driven by rising demand, there has been an increasing demand for robust assessments of fishery sustainability and a need to address local depletion concerns. Our results provide motivation for increased use of relatively low-information, low-cost, comanagement rotational harvest approaches in coastal and reef systems globally.
18
Ruchimat, Toni, Riyanto Basuki, and Marthen Welly. "Nusa Penida Marine Protected Area (Mpa) Bali - Indonesia: Why Need to be Protected?" Transylvanian Review of Systematical and Ecological Research 15, no. 1 (June 1, 2013): 193–202. http://dx.doi.org/10.2478/trser-2013-0016.
Full textAbstract:
ABSTRACT Nusa Penida comprises a group of islands in the south-east of Bali. This archipelago contains a high level of marine biodiversity and has significant tourism potential. In addition, Nusa Penida has aquaculture and fishing areas, which continue to be developed. Efforts towards conservation and sustainable use by means of Marine Protected Areas (MPAs) provide an important solution to counteract increasing pressure on natural resources due to economic activities. Zoning system arrangements to protect marine biodiversity, as well as sustainable economic activities, form the highest priority in the management of the Nusa Penida MPA. The paper provides an overview of the coastal ecosystem of Nusa Penida and the potential for sustainable utilization of natural resources, as well as demonstrates the socioeconomic condition of the Nusa Penida community. Rapid Ecological Assessment (REA) in 2009 for the marine ecosystems in the waters of Nusa Penida serves as baseline data to provide inputs for defining the MPA, including a zoning system and a management plan. The ecological survey revealed 1,419 ha of coral reef with 296 species, 230 ha of mangrove with 13 species, and 108 ha of seagrass beds with 8 species. The assessment of fish biodiversity revealed 296 species of fish, including five that are new to science. Nusa Penida’s waters are home to marine megafauna such as sea turtles, sharks and cetaceans, also unique and charismatic fish such as ocean sunfish (Mola mola) and manta rays (Manta birostris), that occur predictably annually. Marine tourism, seaweed farming and capture fisheries are the main economic activities for the income of the coastal community. Nusa Penida is visited by more than 200,000 tourists each year. The tourists dive in 20 dive-spots arround the waters. There are 308 ha of seaweed farming that produce more than 50 tons per month. About 850 local fishermen depend for their livelihood on the fishing grounds around the waters of Nusa Penida for their livelihood. In total, some 46,000 residents depend on the marine biodiversity of the archipelago for their livelihood. Destructive fishing and over-fishing are serious threats to the reef ecosystem within the Nusa Penida MPA, as well as to the sustainable fisheries. The lack of a clear zoning system and its attendant regulation of uses for Nusa Penida’s coastal area and marine resources mean potential conflicts between marine tourism, seaweed farming and the fisheries. The establishment of the MPA with a management plan is imperative to regulate the sustainable use of marine resources.
19
Raquino, Mark Edison, Marivic Pajaro, and Paul Watts. "Integrating marine biodiversity through Philippine local development plans." Management of Environmental Quality: An International Journal 26, no. 2 (March 9, 2015): 159–71. http://dx.doi.org/10.1108/meq-09-2013-0097.
Full textAbstract:
Purpose – The purpose of this paper is to highlight how data from marine protected area (MPA) surveys can be used to facilitate the development of systematic approaches to monitoring biodiversity within local government development plans and across marine bioregions. Design/methodology/approach – The study focussed on coastal Barangays of the Municipality of San Luis, Aurora Philippines. A Participatory Coastal Resource Assessment (PCRA) was conducted to gather information on corals and reef fishery resources. Resultant Simpson’s biodiversity indices were calculated and compared to other MPA sites. Linkages to enhanced marine curriculum in a San Luis high school were evaluated by utilizing cultural consensus theory (CCT) on previously reported local student perception surveys as a further effort on defining pathways for localized transformation. Findings – San Luis MPA biodiversity indices ranged from 0.56-0.8 on a scale of 0-1. This initial analysis demonstrates how local monitoring can be connected to resource assessment through biodiversity considerations and in developing local plans for site improvement linked to local economies. Results are used to demonstrate the potential for further development of an integrated approach to biodiversity monitoring across and between bioregions as a step forward in strengthening science for MPAs and biodiversity conservation for the Philippines. Practical implications – The study could be used to pilot study strengthening of coastal resource management (CRM) at Municipal and Barangay levels and as well through application of CCT to the topics. The results will be used to reinforce the formulation of San Luis local development plans to better consider marine resource assessment. Originality/value – This paper provides a new perspective on the use of quantitative measures of biodiversity to assist with local development plans. Projecting integrated biodiversity monitoring across and between bioregions is considered as a potential tool for facilitating climate change mitigation.
20
Karfs, R. A., B. N. Abbott, P. F. Scarth, and J. F. Wallace. "Land condition monitoring information for reef catchments: a new era." Rangeland Journal 31, no. 1 (2009): 69. http://dx.doi.org/10.1071/rj08060.
Full textAbstract:
Land condition monitoring information is required for the strategic management of grazing land and for a better understanding of ecosystem processes. Yet, for policy makers and those land managers whose properties are situated within north-eastern Australia’s vast Great Barrier Reef catchments, there has been a general lack of geospatial land condition monitoring information. This paper provides an overview of integrated land monitoring activity in rangeland areas of two major Reef catchments in Queensland: the Burdekin and Fitzroy regions. The project aims were to assemble land condition monitoring datasets that would assist grazing land management and support decision-makers investing public funds; and deliver these data to natural resource management (NRM) community groups, which had been given increased responsibility for delivering local environmental outcomes. We describe the rationale and processes used to produce new land condition monitoring datasets derived from remotely sensed Landsat thematic mapper (TM) and high resolution SPOT 5 satellite imagery and from rapid land condition ground assessment. Specific products include subcatchment groundcover change maps, regional mapping of indicative very poor land condition, and stratified land condition site summaries. Their application, integration, and limitations are discussed. The major innovation is a better understanding of NRM issues with respect to land condition across vast regional areas, and the effective transfer of decision-making capacity to the local level. Likewise, with an increased ability to address policy questions from an evidence-based position, combined with increased cooperation between community, industry and all levels of government, a new era has emerged for decision-makers in rangeland management.
21
Spillman, C. M., O. Alves, and D. A. Hudson. "Seasonal Prediction of Thermal Stress Accumulation for Coral Bleaching in the Tropical Oceans." Monthly Weather Review 139, no. 2 (February 1, 2011): 317–31. http://dx.doi.org/10.1175/2010mwr3526.1.
Full textAbstract:
Abstract Mass coral bleaching, associated with anomalously warm ocean temperatures over large regions, poses a serious threat to the future health of the world coral reef systems. Seasonal forecasts from coupled ocean–atmosphere models can be a valuable resource for reef management, providing early warning of potential bleaching conditions, allowing for a proactive management response. Here, the ability of a dynamical seasonal forecast model (Predictive Ocean Atmosphere Model for Australia, POAMA) to forecast degree heating months (DHMs) in the tropical oceans is assessed, with particular focus on the 1997/98 El Niño–Southern Oscillation (ENSO) and associated global bleaching events. The model exhibits useful skill in forecasting sea surface temperatures (SSTs) across the tropical oceans for 1982–2006 and reproduced both the magnitude and distribution of DHM values observed during the 1997/98 ENSO event. In general, observed teleconnections between ENSO indices and tropical SST at various lags are well captured by the model. In particular, strong observed correlations between peak ENSO indices and SST in the Caribbean in the following summer were reproduced. The model also shows skill in predicting ocean conditions conducive to bleaching in non-ENSO years, capturing the anomalously warm conditions in the Caribbean region in 2005. Probabilistic forecasts of DHM values above certain thresholds for the Caribbean show useful skill and could be valuable in the assessment of the likelihood of bleaching for the region.
22
Muliawan, Irwan, and Maulana Firdaus. "NILAI EKONOMI EKOSISTEM TERUMBU KARANG DI TAMAN WISATA PERAIRAN KAPOPOSANG, SULAWESI SELATAN." Jurnal Sosial Ekonomi Kelautan dan Perikanan 13, no. 2 (February 8, 2019): 133. http://dx.doi.org/10.15578/jsekp.v13i2.6866.
Full textAbstract:
ABSTRAK Penilaian terhadap ekosistem pada kawasan konservasi menjadi sangat penting sebagai dasar pertimbangan bagi pengelolaan kawasan konservasi perairan. Kajian ini bertujuan untuk menghitung nilai ekonomi ekosistem terumbu karang di Taman Wisata Perairan (TWP) Kapoposang, Provinsi Sulawesi Selatan. Data primer dikumpulkan melalui wawancara terhadap pemanfaat sumber daya; sedangkan data sekunder berupa jumlah populasi pemanfaat (nelayan) di sekitar kawasan, jumlah wisatawan dan luas kawasan dikumpulkan melalui penelusuran literatur dan laporan-laporan yang tersedia. Analisis data dilakukan menggunakan teknik valuasi ekonomi sumber daya, yaitu teknik Effect on Production dan Zonal Travel Cost Method. Hasil kajian menunjukkan bahwa nilai manfaat ekonomi ekosistem terumbu karang di TWP Kapoposang adalah sebesar Rp1.698.945.542,-/ha/tahun; sedangkan nilai ekonomi wisata di TWP Kapoposang adalah sebesar Rp467.753.989,-/ha/tahun. Nilai ekonomi manfaat wisata terlihat kontradiksi jika dibandingkan dengan total nilai kesediaan membayar (U) yang dibayarkan oleh pengunjung sebesar Rp2.012,-/pengunjung/tahun, yang mengindikasikan penghargaan pengunjung terhadap sumber daya terumbu karang relatif rendah. Pengembangan pariwisata pada kawasan konservasi khususnya di TWP Kapoposang sangat penting dilakukan agar memberikan dampak atau manfaat ekonomi yang tinggi, sehingga pemanfaatan yang bersifat ekstraksi sumber daya pada kawasan konservasi dapat berkurang. Title: Economic Value Of Coral Reef Ecosystem In The Kapoposang Marine Park Conservation, South SulawesiABSTRACT Assessment of economic value of ecosystems in the conservation areas is very important as a basis for consideration of management marine conservation areas. This study aims to estimate the economic value of coral reef ecosystems in Kapoposang Aquatic Tourism Park, South Sulawesi Province. Primary data was collected through interviews with resource users and secondary data in the form of number of users (fishers) around the area, size of the area itself and number of tourists were collected through literature studies and compiled the available report. Data were analysedusing economic valuation techniques, namely Effect on Production and Zonal Travel Cost Method techniques. Results of the study show that the value of the economic benefits of the coral reef ecosystem in the Kapoposang TWP was IDR 1,698,945,542/ha/year whereas for the tourism in Kapoposang TWP was IDR 467,753,989/ha/year. This values were contradicted with the current amount of money paid by tourist visitors of IDR 2.012/visitor/year of which considered their willingness to pay (U) to the resource. The development of tourism in conservation areas, especially in the Kapoposang TWP, is very important to be carried out in order to provide high economic impact or benefits so that the extraction resources utilization in the conservation areas can be reduced.
23
Andréfouët, Serge, Antoine Gilbert, Laurent Yan, Georges Remoissenet, Claude Payri, and Yannick Chancerelle. "The remarkable population size of the endangered clam Tridacna maxima assessed in Fangatau Atoll (Eastern Tuamotu, French Polynesia) using in situ and remote sensing data." ICES Journal of Marine Science 62, no. 6 (January 1, 2005): 1037–48. http://dx.doi.org/10.1016/j.icesjms.2005.04.006.
Full textAbstract:
AbstractSeveral lagoons of the Eastern Tuamotu Atolls (French Polynesia) are characterized by enormous populations of the clam Tridacna maxima, a species considered as endangered in many locations worldwide. This unique resource is virtually intact, until recently being impacted only by local consumption. Increasing exports to Tahiti's market (up to 50 tonnes of wet matter y−1), combined with the relatively small size of these lagoons (<50 km2), have raised significant concerns for agencies charged with management of lagoonal resources. In order to evaluate whether the current harvesting pressure threatens long-term sustainability of this resource, it is necessary to estimate the total number of individual clams present and also the fraction of that stock that is currently targeted by fishers, who generally collect clams in very shallow waters (<1 m), walking on the reef edges. Here, we present results for a pilot study evaluating this resource at Fangatau Atoll. Using a combination of data collected in situ and three remotely sensed images with different spatial resolution (1.5, 5.6, and 30 m), we estimate that the shallowest lagoonal areas (4.05 km2 at depth <6 m) harbour five classes of benthic habitat with significantly different clam areal covers and densities. Considering the cover/density values for each habitat class, 23.65 ± 5.33 million clams (mean ± 95% confidence interval) inhabit these 4.05 km2. Assuming that current harvesting techniques will be maintained in the future, the commercially available stock represents 44% of the population located on 1.18 km2 of the shallow lagoon. A comparison of results from the three remote sensing platforms indicates that high resolution, broadband multispectral sensors (e.g. IKONOS, Quickbird) should provide the best existing platforms to conduct similar assessments elsewhere.
24
Stejskal, I. V. "EXPLORATION IN SENSITIVE AREAS: CONVINCING THE COMMUNITY." APPEA Journal 35, no. 1 (1995): 822. http://dx.doi.org/10.1071/aj94059.
Full textAbstract:
Hadson Carnarvon Pty Ltd (Hadson), on behalf of the Joint Venture Partners, operates permits EP342 and TP/9 located at the northern end of Exmouth gulf, to the east of Cape Range peninsula, Western Australia. The Exmouth region is known for the Ningaloo Reef, and for its diving and recreational fishing. The area also supports a large commercial prawn fishery. Many marine areas in the Exmouth region are regarded as being environmentally sensitive with several areas of conservation value.The partners were committed to drilling two wells in EP342 and TP/9 in 1993 as part of the obligations under the permits. Public mistrust of, and an unfamiliarity with, the oil and gas industry gave the Exmouth community the perception that the EP342 drilling program would have a detrimental impact on the sensitive marine resources of the region and, hence, to the growing tourism industry in the region.Hadson developed a management strategy which involved an extensive local community education and consultation program. Activities for this program included presentations to various community and special interest groups and a two-day public exhibition in Exmouth. The management strategy also included commitment to statutory and voluntary environmental guidelines, and an impact assessment study.Hadson's communication program was successful on a local level: by the time drilling commenced, active opposition to the drilling program had diminished significantly. This drilling program showed the importance of involving the public in the plans of the company, of putting a 'face' to the company and of communicating environmental risk in a trustworthy manner.The State Government announced in July 1994 that petroleum exploration within Ningaloo Marine Park would not be permitted. This decision was not based on scientific evidence, but political strategy and a perception that in the Exmouth and wider community there was an innate 'fear' regarding the impact of the petroleum industry.
25
Geß, Andreas, Manuel Lorenz, Anna Tolsdorf, and Stefan Albrecht. "Environmental Impacts of Renewable Insulation Materials." Sustainability 13, no. 15 (July 29, 2021): 8505. http://dx.doi.org/10.3390/su13158505.
Full textAbstract:
According to the IEA Global Status Report for Buildings and Construction 2019, one of the main industry sectors causing environmental impacts is the construction sector. Hence, construction materials from renewable resources are expected to have a large potential to decrease these impacts. In this study, a Life Cycle Assessment (LCA) was conducted for four different insulation materials from renewable feedstock: insulation made from pasture grass, seaweed, reed, and recycled jute fibres. Additionally, the effects on land use change were evaluated for pasture grass insulation using the LANCA® methodology. To put the LCA results in relation to those of non-renewable resources, a comparison of standardized LCA values for conventional insulation materials is presented. In general, the renewable insulation materials show fewer environmental impacts than their conventional counterparts. In particular, these materials have advantages regarding greenhouse gas emissions and their impact on climate change. Of the analyzed materials, seaweed showed the overall lowest emissions. It can be concluded that insulation materials from non-mineral, non-fossil, and non-wooden resources are still fairly niche in terms of market share, but they have extraordinary potential in decreasing the environmental impacts of construction ventures.
26
Xie, Lifeng, Weicheng Wu, Xiaolan Huang, Penghui Ou, Ziyu Lin, Wang Zhiling, Yong Song, et al. "Mining and Restoration Monitoring of Rare Earth Element (REE) Exploitation by New Remote Sensing Indicators in Southern Jiangxi, China." Remote Sensing 12, no. 21 (October 30, 2020): 3558. http://dx.doi.org/10.3390/rs12213558.
Full textAbstract:
Rare earth elements (REEs) are widely used in various industries. The open-pit mining and chemical extraction of REEs in the weathered crust in southern Jiangxi, China, since the 1970s have provoked severe damages to the environment. After 2010, different restorations have been implemented by various enterprises, which seem to have a spatial variability in both management techniques and efficiency from one mine to another. A number of vegetation indices, e.g., normalized difference vegetation index (NDVI), soil-adjusted vegetation index (SAVI), enhanced vegetation index (EVI) and atmospherically resistant vegetation index (ARVI), can be used for this kind of monitoring and assessment but lack sensitivity to subtle differences. For this reason, the main objective of this study was to explore the possibility to develop new, mining-tailored remote sensing indicators to monitor the impacts of REE mining on the environment and to assess the effectiveness of its related restoration using multitemporal Landsat data from 1988 to 2019. The new indicators, termed mining and restoration assessment indicators (MRAIs), were developed based on the strong contrast of spectral reflectance, albedo, land surface temperature (LST) and tasseled cap brightness (TCB) of REE mines between mining and postmining restoration management. These indicators were tested against vegetation indices such as NDVI, EVI, SAVI and generalized difference vegetation index (GDVI), and found to be more sensitive. Of similar sensitivity to each other, one of the new indicators was employed to conduct the restoration assessment of the mined areas. Six typically managed mines with different restoration degrees and management approaches were selected as hotspots for a comparative analysis to highlight their temporal trajectories using the selected MRAI. The results show that REE mining had experienced a rapid expansion in 1988–2010 with a total mined area of about 66.29 km2 in the observed counties. With implementation of the post-2010 restoration measures, an improvement of varying degrees in vegetation cover in most mines was distinguished and quantified. Hence, this study with the newly developed indicators provides a relevant approach for assessing the sustainable exploitation and management of REE resources in the study area.
27
Mardyani, Yeyen, Rahmat Kurnia, and Luky Adrianto. "STATUS PENGELOLAAN PERIKANAN SKALA KECIL BERBASIS ZONASI DI WILAYAH PERAIRAN KABUPATEN BANGKA." Jurnal Kebijakan Perikanan Indonesia 11, no. 2 (November 12, 2019): 125. http://dx.doi.org/10.15578/jkpi.11.2.2019.125-137.
Full textAbstract:
Pemanfaatan wilayah perairan di sekitar Pulau Bangka oleh sektor perikanan khususnya perikanan skala kecil semakin terdesak akibat daerah penangkapan ikan (DPI) yang semakin berkurang dikarenakan wilayah Izin Usaha Pertambangan (IUP) di laut semakin bertambah. Hal ini menyebabkan ruang gerak nelayan semakin sempit. Penelitian ini bertujuan untuk menilai status keragaan pengelolaan perikanan skala kecil berdasarkan Zona DPI yang dibagi menjadi 3, yaitu Zona A (DPI dengan IUP aktif), Zona A1 (DPI dengan IUP non aktif), dan Zona B (DPI tanpa IUP). Status keragaan dinilai melalui pendekatan Ecosystem Approach for Fisheries Management (EAFM) dengan menggunakan indikator pada domain sumberdaya ikan, habitat dan ekosistem, teknologi penangkapan ikan, sosial, ekonomi, dan kelembagaan. Hasil penilaian menunjukkan bahwa status pengelolaan perikanan pada masing-masing zona DPI yaitu Zona A dengan nilai total agregat sebesar 1.179,50 termasuk dalam kategori status sedang; Zona A1 dengan nilai total agregat 1.404,5 termasuk dalam kategori status baik, dan Zona B dengan nilai total agregat sebesar 1.377 yang termasuk kategori status sedang. Pengelolaan perikanan dengan keputusan taktis diprioritaskan pada indikator range collaps, kapasitas penangkapan, ekosistem terumbu karang, konflik perikanan, pendapatan nelayan, dan penguatan kelembagaan.The use of Bangka waters by the fisheries sector, especially small scale fisheries, is increasingly pushed due to the reduced fishing ground (DPI) because of the increasing area of the Sea Mining Business License (IUP). This causes less space for fishermen. This study aims to assess the performance status of small scale fisheries management based on the DPI Zone which is divided into 3, namely Zone A (DPI with active IUP), Zone A1 (DPI with non-active IUP), and Zone B (DPI without IUP). Performance status is assessed through the Ecosystem Approach for Fisheries Management (EAFM) approach using indicators in the domain of fish resources, habitat and ecosystem, fisheries technology, social, economic, and institutional. The assessment results indicate that the status of fisheries management in each DPI zone, namely Zone A with an aggregate total value of 1,179.50, is included in the medium status category; Zone A1 with a total aggregate value of 1,404.5 is included in the good status category, and Zone B with an aggregate value of 1,377 which is included in the medium status category. Fisheries management with tactical decisions are prioritized on indicators of range collapse, fishing capacity, coral reef ecosystems, fisheries conflicts, fishermen income, and institutional strengthening.
28
Amjad, Shahid, Nuzhat Khan, and Saira Ishaq. "Coral Community: Preliminary Biodiversity Survey of Churna Island, Northern Arabian Sea." April 2020 39, no. 2 (April 1, 2020): 390–97. http://dx.doi.org/10.22581/muet1982.2002.15.
Full textAbstract:
Biodiversity survey between Cape Monze and Churna Island was carried out for the assessment of coral assemblages in the area. During the present study, diving surveys were conducted to document the living corals that included deep sea coral, Coelenterates, Bryozoans, Gorgonia (Sea Fan), Scleractinian, (Stony Corals) Cnidaria (Hydroids), Porites (Small Polyp Stony), Pocilopora (Cauliflower Corals), Acropora (Hard Corals), sea urchins, sea anemones, coral fish spp, sea slugs, stone fish and bivalves were observed and documented. To have a better understanding of the distribution pattern “Shannon Weiner Biodiversity Index” for species diversity “H” (0.845-1.176) and evenness “J” (0.962-0.937) were calculated, the values indicate that the coral species were evenly distributed and did not show any significant variation in the area. Budding coral communities were observed at the sedimentary rock of Churna in patches, and showed a random distribution behavior all along the surveyed area. Random, scattered and aggregate distribution patterns of corals may be due to the wave beaten physical environment of Churna Island that do not allow sustainable growth of coral communities. Moreover, the high energy waves and water currents destablize and erode the sedimentary substrate on which corals grow. The corals are therefore unable to establish themselves to form a natural reef due to loss of natural living and non-living substrate. The ecology of Churna Island also under the influence of nearby coastal industries, and the Hub River influx causing floods in the SW monsoon period that may destablize rubble and increase the seawater turbidity level. These environmental factors contributing to the deterioration of present day corals, and larval settlement. It may be concluded that biological resources are renewable and can even increase with proper management techniques. Breakwater wall and artificial substrate must be encouraged to further facilitate the growth and development of Corals in the area.
29
Amjad, Shahid, Nuzhat Khan, and Saira Ishaq. "Coral Community: Preliminary Biodiversity Survey of Churna Island, Northern Arabian Sea." April 2020 39, no. 2 (April 1, 2020): 390–97. http://dx.doi.org/10.22581/10.22581/muet1982.2002.15.
Full textAbstract:
Biodiversity survey between Cape Monze and Churna Island was carried out for the assessment of coral assemblages in the area. During the present study, diving surveys were conducted to document the living corals that included deep sea coral, Coelenterates, Bryozoans, Gorgonia (Sea Fan), Scleractinian, (Stony Corals) Cnidaria (Hydroids), Porites (Small Polyp Stony), Pocilopora (Cauliflower Corals), Acropora (Hard Corals), sea urchins, sea anemones, coral fish spp, sea slugs, stone fish and bivalves were observed and documented. To have a better understanding of the distribution pattern “Shannon Weiner Biodiversity Index” for species diversity “H” (0.845-1.176) and evenness “J” (0.962-0.937) were calculated, the values indicate that the coral species were evenly distributed and did not show any significant variation in the area. Budding coral communities were observed at the sedimentary rock of Churna in patches, and showed a random distribution behavior all along the surveyed area. Random, scattered and aggregate distribution patterns of corals may be due to the wave beaten physical environment of Churna Island that do not allow sustainable growth of coral communities. Moreover, the high energy waves and water currents destablize and erode the sedimentary substrate on which corals grow. The corals are therefore unable to establish themselves to form a natural reef due to loss of natural living and non-living substrate. The ecology of Churna Island also under the influence of nearby coastal industries, and the Hub River influx causing floods in the SW monsoon period that may destablize rubble and increase the seawater turbidity level. These environmental factors contributing to the deterioration of present day corals, and larval settlement. It may be concluded that biological resources are renewable and can even increase with proper management techniques. Breakwater wall and artificial substrate must be encouraged to further facilitate the growth and development of Corals in the area.
30
Overfield, Michael L. "CORROSION ON DEEP GULF SHIPWRECKS OF WORLD WAR II1." International Oil Spill Conference Proceedings 2005, no. 1 (May 1, 2005): 387–83. http://dx.doi.org/10.7901/2169-3358-2005-1-387.
Full textAbstract:
ABSTRACT During the summer of 2004, National Oceanic and Atmospheric Administration's (NOAA) National Marine Sanctuary Program (NMSP) participated with Minerals Management Service (MMS), NOAA's Office of Ocean Exploration (NOAA OE) and C&C Technologies, under the auspices of the National Oceanographic Partnership Program (NOPP), in an investigation to study the “artificial reef effect” of manmade structures in differing depths, and conversely, the effect of the environment on those structures over the course of 60 years, by studying six steel-hulled vessels sunk in the Gulf of Mexico. The National Marine Sanctuary used this opportunity to conduct research on the effects of corrosion on the six vessels identified for study. Corrosion on Deep Gulf Shipwrecks of World War II project represents Phase II of NOAA's RUST database project. Through this study, we addressed the following questions:Does depth of a wreck effect state of corrosion?Is this primarily a chemical, physical or biological process?Do ferrous-hulled shipwrecks follow a fairly consistent degradation process as they age?Is it possible to attach a specific timeline to the degradation scale? The corrosion processes affecting the structural integrity of these vessels is important for two reasons. If we begin to gain an understanding on the corrosive processes at work, we may be able to develop an approximate time line on the eventual fate of these vessels. Second, applying this corrosion timeline, it may enable us to anticipate when tanks and holds containing fuel oils or other hazardous materials will fail and release their cargos into the environment. Using this information, resource protection personnel can assess sites and determine which vessels are considered for direct intervention such as the removal of the threat sources, isolation of the threat, and management plan development or establishment of a monitoring protocol for the site. The survey has added valuable assessment data on steel-hulled vessels and contributes to our understanding of both chemical and biological corrosion in the marine environment. The survey also contributes to the field of underwater research, allowing interpretation and peer review of the results, provides baseline data to examine long-term protection strategies for National Marine Sanctuaries currently threatened by shipwrecks containing oil within or in close proximity to their boundaries.
31
Blomberg, Brittany N., Benoit Lebreton, Terence A. Palmer, Gaël Guillou, Jennifer Beseres Pollack, and Paul A. Montagna. "Does reef structure affect oyster food resources? A stable isotope assessment." Marine Environmental Research 127 (June 2017): 32–40. http://dx.doi.org/10.1016/j.marenvres.2017.03.003.
Full text
32
Gobert, Bertrand. "Comparative assessment of multispecies reef fish resources in the Lesser Antilles." Fisheries Research 44, no. 3 (January 2000): 247–60. http://dx.doi.org/10.1016/s0165-7836(99)00085-5.
Full text
33
Bello-Pineda, J., R. Ponce-Hernández, and M. A. Liceaga-Correa. "Incorporating GIS and MCE for Suitability Assessment Modelling of Coral Reef Resources." Environmental Monitoring and Assessment 114, no. 1-3 (February 15, 2006): 225–56. http://dx.doi.org/10.1007/s10661-006-4628-y.
Full text
34
MOHD HANAPIAH, MUHAMMAD FAIZ, SHAHBUDIN SAAD, ZUHAIRI AHMAD, MUHAMMAD HAMIZAN YUSOF, and MOHD FIKRI AKMAL KHODZORI. "Assessment Assessment of benthic and coral community structure in an inshore reef in Balok, Pahang, Malaysia." Biodiversitas Journal of Biological Diversity 20, no. 3 (March 3, 2019): 872–77. http://dx.doi.org/10.13057/biodiv/d200335.
Full textAbstract:
Abstract. Hanapiah MFM, Saad S, Ahmad Z, Yusof MH, Khodzori MFA. Assessment of benthic and coral community structure in an inshore reef in Balok, Pahang, Malaysia. Biodiversitas 20: 872-877. Inshore water reef closer to human activities are often neglected since they are not protected by marine park management. Little is known on how this reef responses to challenging environment in terms of abundance, diversity and benthic community composition. This study provides a quantitative assessment on the benthic community composition at 5 reef sites in Balok, Pahang, Malaysia and observed the ecological adaptation in the reef community towards turbid water environment. Balok reef has 39% overall coral cover with very low macroalgae abundance (4%). A total of 28 coral genera from 12 families have been recorded with Porites the most dominant genus in the coral assemblages. Most reef sites in Balok are categorized under conservation class 1 (CC1), which indicated that resilient and survival of the reef rely on stress-tolerators taxa. The data presented here showed that Balok reef is highly resilient towards constant exposure to high sedimentation and wave action.
35
Rappold, Gerhard D., Johan Rockström, Huub H. G. Savenije, and Mladen Todorovic. "Water resources assessment for catchment management." Physics and Chemistry of the Earth, Parts A/B/C 28, no. 4-5 (January 2003): 161. http://dx.doi.org/10.1016/s1474-7065(03)00022-6.
Full text
36
Campbell, Stuart J., Joshua E. Cinner, Rizya L. Ardiwijaya, Shinta Pardede, Tasrif Kartawijaya, Ahmad Mukmunin, Yudi Herdiana, Andrew S. Hoey, Morgan S. Pratchett, and Andrew H. Baird. "Avoiding conflicts and protecting coral reefs: customary management benefits marine habitats and fish biomass." Oryx 46, no. 4 (October 2012): 486–94. http://dx.doi.org/10.1017/s0030605312000348.
Full textAbstract:
AbstractOne of the major goals of coral reef conservation is to determine the most effective means of managing marine resources in regions where economic conditions often limit the options available. For example, no-take fishing areas can be impractical in regions where people rely heavily on reef fish for food. In this study we test whether coral reef health differed among areas with varying management practices and socio-economic conditions on Pulau Weh in the Indonesian province of Aceh. Our results show that gear restrictions, in particular prohibiting the use of nets, were successful in minimizing habitat degradation and maintaining fish biomass despite ongoing access to the fishery. Reef fish biomass and hard-coral cover were two- to eight-fold higher at sites where fishing nets were prohibited. The guiding principle of the local customary management system, Panglima Laot, is to reduce conflict among community members over access to marine resources. Consequently, conservation benefits in Aceh have arisen from a customary system that lacks a specific environmental ethic or the means for strong resource-based management. Panglima Laot includes many of the features of successful institutions, such as clearly defined membership rights and the opportunity for resource users to be involved in making, enforcing and changing the rules. Such mechanisms to reduce conflict are the key to the success of marine resource management, particularly in settings that lack resources for enforcement.
37
Grigg, R. W. "The International Coral Reef Initiative: conservation and effective management of marine resources." Coral Reefs 13, no. 4 (November 1994): 197–98. http://dx.doi.org/10.1007/bf00303630.
Full text
38
Koch, Magaly, and Thomas Missimer. "Water Resources Assessment and Management in Drylands." Water 8, no. 6 (June 3, 2016): 239. http://dx.doi.org/10.3390/w8060239.
Full text
39
Karamouz, Mohammad, Azadeh Ahmadi, Mohammad Saleh Semsar Yazdi, and Behzad Ahmadi. "Economic Assessment of Water Resources Management Strategies." Journal of Irrigation and Drainage Engineering 140, no. 1 (January 2014): 04013005. http://dx.doi.org/10.1061/(asce)ir.1943-4774.0000654.
Full text
40
Garrote, Luis. "Water Resources Management Models for Policy Assessment." Water 13, no. 8 (April 13, 2021): 1063. http://dx.doi.org/10.3390/w13081063.
Full text
41
Gibbs, David A., and Jordan M. West. "Resilience assessment of Puerto Rico’s coral reefs to inform reef management." PLOS ONE 14, no. 11 (November 5, 2019): e0224360. http://dx.doi.org/10.1371/journal.pone.0224360.
Full text
42
Arnesen, Eric. "Assessing Whiteness Scholarship: A Response to James Barrett, David Brody, Barbara Fields, Eric Foner, Victoria Hattam, and Adolph Reed." International Labor and Working-Class History 60 (October 2001): 81–92. http://dx.doi.org/10.1017/s0147547901004458.
Full textAbstract:
The valuable and thoughtful responses to my essay, “Whiteness and the Historians' Imagination,” illustrate the existence of a wide range of opinions on the emergence, claims, and methodologies of the whiteness genre in US and US labor history. Like Eric Foner, it is my hope that this scholarly controversy will mark the beginning of a much longer discussion that will draw in many more participants from history, American Studies, political science, and other disciplines. This is a debate that I believe is long overdue. While David Brody is certainly correct to note that readers have not been so “dazzled” that they could not be critical of whiteness scholarship, serious historiographical assessments of the genre's strengths and weaknesses have been scarce. This scholarly controversy, which aims at providing such an assessment, will not and should not be the final word on the subject. In this response, I welcome the opportunity to address a fraction of the many important issues raised by James Barrett, David Brody, Barbara Fields, Eric Foner, Victoria Hattam, and Adolph Reed.
43
SALE, PETER F. "Coral reef conservation and political will." Environmental Conservation 42, no. 2 (November 4, 2014): 97–101. http://dx.doi.org/10.1017/s0376892914000344.
Full textAbstract:
SUMMARYCoral reefs and their societal benefits are in decline, chiefly due to overfishing, pollution and inappropriate coastal development. Strengthened management is possible, but collective failure to build the needed political will to act diminishes lives of millions of people along tropical coasts. Political will can be built, but it requires committed leadership and sustained investment of time and resources. Accepting failure as inevitable is inappropriate.
44
Brodie, J., C. Christie, M. Devlin, D. Haynes, S. Morris, M. Ramsay, J. Waterhouse, and H. Yorkston. "Catchment management and the Great Barrier Reef." Water Science and Technology 43, no. 9 (May 1, 2001): 203–11. http://dx.doi.org/10.2166/wst.2001.0540.
Full textAbstract:
Pollution of coastal regions of the Great Barrier Reef is dominated by runoff from the adjacent catchment. Catchment land-use is dominated by beef grazing and cropping, largely sugarcane cultivation, with relatively minor urban development. Runoff of sediment, nutrients and pesticides is increasing and for nitrogen is now four times the natural amount discharged 150 years ago. Significant effects and potential threats are now evident on inshore reefs, seagrasses and marine animals. There is no effective legislation or processes in place to manage agricultural pollution. The Great Barrier Reef Marine Park Act does not provide effective jurisdiction on the catchment. Queensland legislation relies on voluntary codes and there is no assessment of the effectiveness of the codes. Integrated catchment management strategies, also voluntary, provide some positive outcomes but are of limited success. Pollutant loads are predicted to continue to increase and it is unlikely that current management regimes will prevent this. New mechanisms to prevent continued degradation of inshore ecosystems of the Great Barrier Reef World Heritage Area are urgently needed.
45
Daging, I. Gede, I. Gst Agung Gde Eka Martiningsih, and I. Ketut Arnawa. "Preservation Strategy of Village Tourism (Study of the Real of The Attitude of The Understanding, the Existence of the Bali Traditional Building) in the Traveling Village of Bangli District, Bangli District." International Journal of Contemporary Research and Review 10, no. 01 (January 29, 2019): 21229–36. http://dx.doi.org/10.15520/ijcrr.v10i01.647.
Full textAbstract:
This article aims to analyse the internal and external factors that may affect the conservation of karang sikut satak and formulate strategies of cultural tourism village preservation of karang sikut satak in the village of Penglipuran sub-district of Bangli Bangli Regency. The village Penglipuran is a conservation village in the preservation of Balinese culture, especially in an effort to preserve the culture, customs, spatial and environmental-friendly buildings as angkul – angkul, kitchen and bale saka six bamboo, lit. so it must be kept in order to remain a cultural heritage which is proud of the Balinese people. The approach used is descriptive qualitative research locus is with in the village of Penglipuran sub-district of Bangli Regency of Bangli.
Identification of environmental factors of the village Penglipuran is an analysis of the assessment of the condition of the internal environmental factors be strengths and weaknesses as well as the external environment factors in the form of opportunities and threats, based on assessment/perception of society who can give negative or positive influence towards the preservation of the village cultural tour of karang sikut satak in village Penglipuran. Cultural preservation strategy formulation is formulating an alternative strategy that generated through SWOT analysis approach with interaction matrix IFAS-EFAS to acquire some alternatives to suit most cultural preservation in the tourist village Coral Penglipuran in the village of karang sikut satak it future.
The factors that can be identified in the internal environment of Penglipuran Village which are strengths are the Application of Ashta Bhumi on satak coral, the existence of community leaders who understand Astha Bhumi, the community's belief in the concept of Hulu-Teben, the philosophy of Kalapatra which is believed, villagers. While the weaknesses possessed are the quality and quantity of human resources, the development of modern lifestyles, the development of the layout of the residence on the following reefs is related to the increase in population. Whereas the external environment is an opportunity for Penglipuran Village, namely the existence of government policy on environmental protection and management, which is based on local wisdom. There is a policy of establishing Penglipuran Village as a tourism village. There is a cultural tourism development program, while the threat is in the form of private investment, effectiveness. spatial control policies, globalization and modernization, competencies between cultural tourism destinations.
Based on the weighting of the SWOT questionnaire, the alternative strategy formulation that can be recommended is the Strength Strategy - Opportunity (SO), which is a strategy that uses the power to take advantage of opportunities with alternative strategies, namely Strengthening the policy of Penglipuran Village as a tourism village, strengthening community trust in the concept Hulu-Teben, utilizing rapid technological advancements in supporting the preservation of Cultural Tourism Village and improving the management of subsidies for the preservation of sikut satak.
46
Saputro, Gurindo Bintar, and Isa Nagib Edrus. "SUMBER DAYA IKAN KARANG PERAIRAN KABUPATEN BANGGAI, SULAWESI TENGAH." Jurnal Penelitian Perikanan Indonesia 14, no. 1 (February 6, 2017): 79. http://dx.doi.org/10.15578/jppi.14.1.2008.79-121.
Full textAbstract:
Penelitian ini dilakukan pada bulan Juli 2006 di perairan Kabupaten Banggai, Sulawesi Tengah. Tujuan penelitian adalah untuk mengidentifikasi indeks keanekaragaman sumber daya ikan karang yang terdiri atas kekayaan jenis, keanekaragaman jenis, dominasi jenis, keanekaragaman jumlah, dan keseragaman dalam komunitas. Metode yang digunakan adalah rapid reef assessment, line intercept transect, dan sensus visual. Penelitian ini, baik melalui proses rapid reef assessment maupun line intercept transect, berhasil mengidentifikasi 319 jenis ikan karang dan 121 marga dari 40 suku, dengan variasi antara lokasi berkisar antara 14 sampai dengan 140 jenis ikan karang. Jumlah wilayah transek 32 lokasi dan 6 lokasi antara lain memiliki indeks keanekaragaman ikan karang dengan kategori tinggi, 3 lokasi memiliki indeks keanekaragaman rendah, dan sisa 23 lokasi memiliki keanekaragaman ikan karang dengan kategori sedang. This study was carried out in July 2006 at the waters of Banggai District, Central Sulawesi with aim to identify the diversity indeces of reef fish resources including species richness, species diversity, species domination, diversity numbers, and evenness in fish community. Methods used were rapid reef assessment, line intercept transect, and visual census. The study of using both rapid reef assessment and line intercept transect identified successfully 319 species, 121 genus, and 40 families with reef fish species locally varied from 14 to 140. Total of transect areas were 32 sites and 6 of those were classified in the high diversity, 3 sites were classified the lower diversity and the others were grouped in the fair diversity.
47
Jennings, S. "Artisanal fisheries of the Great Astrolabe Reef, Fiji: monitoring, assessment and management." Coral Reefs 17, no. 1 (March 27, 1998): 82. http://dx.doi.org/10.1007/s003380050099.
Full text
48
Powell, Suzanne K. "Case Management Resources." Professional Case Management 22, no. 2 (2017): 51–53. http://dx.doi.org/10.1097/ncm.0000000000000210.
Full text
49
Webber, Sheri. "Applying Program Assessment Techniques to Electronic Resources Management." Technical Services Quarterly 22, no. 1 (November 9, 2004): 9–20. http://dx.doi.org/10.1300/j124v22n01_02.
Full text
50
BRANOWICKI, PATRICIA A., and HERMINIA SHERMONT. "Maximizing Resources A Microanalysis Assessment Tool." Nursing Management (Springhouse) 28, no. 5 (May 1997): 65???70. http://dx.doi.org/10.1097/00006247-199705010-00016.
Full text