Academic literature on the topic '180301 Assessment and management of freshwater ecosystems'

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Journal articles on the topic "180301 Assessment and management of freshwater ecosystems"

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Bervoets, Lieven, Marc Baillieul, Ronny Blust, Gudrun De Boeck, and Rudolf Verheyen. "Impact assessment of industrial effluents on freshwater ecosystems." Science of The Total Environment 134 (January 1993): 1123–28. http://dx.doi.org/10.1016/s0048-9697(05)80116-0.

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Di Lorenzo, Tiziana, Grant C. Hose, and Diana M. P. Galassi. "Assessment of Different Contaminants in Freshwater: Origin, Fate and Ecological Impact." Water 12, no. 6 (June 24, 2020): 1810. http://dx.doi.org/10.3390/w12061810.

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Freshwater ecosystems cover over 15% of the world’s surface and provide ecosystem services that are pivotal in sustaining human society. However, fast-growing anthropogenic activities have deleterious impacts on these ecosystems. In this Special Issue, we collect ten studies encompassing five different factors of freshwater contamination: landfill leaks, nutrients, heavy metals, emerging organic contaminants and marble slurry. Using different approaches, the studies detailed the direct and indirect effects that these contaminants have on a range of freshwater organisms, from bacteria to vertebrates. Although the papers covered here focused on specific case studies, they exemplify common issues that are expanding in groundwaters, hyporheic zones, streams, lakes and ponds around the world. All the aspects of these issues are in dire need of being continuously discussed among scientists, end-users and policy-makers. To this end, the Special Issue presents a new free software suite for the analysis of the ecological risk and conservation priority of freshwater ecosystems. The software can support local authorities in the preparation of management plans for freshwater basins pursuant to the Water Directives in Europe.
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Bănăduc, Doru, Vladica Simić, Kevin Cianfaglione, Sophia Barinova, Sergey Afanasyev, Ahmet Öktener, Grant McCall, Snežana Simić, and Angela Curtean-Bănăduc. "Freshwater as a Sustainable Resource and Generator of Secondary Resources in the 21st Century: Stressors, Threats, Risks, Management and Protection Strategies, and Conservation Approaches." International Journal of Environmental Research and Public Health 19, no. 24 (December 9, 2022): 16570. http://dx.doi.org/10.3390/ijerph192416570.

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This paper is a synthetic overview of some of the threats, risks, and integrated water management elements in freshwater ecosystems. The paper provides some discussion of human needs and water conservation issues related to freshwater systems: (1) introduction and background; (2) water basics and natural cycles; (3) freshwater roles in human cultures and civilizations; (4) water as a biosphere cornerstone; (5) climate as a hydrospheric ‘game changer’ from the perspective of freshwater; (6) human-induced stressors’ effects on freshwater ecosystem changes (pollution, habitat fragmentation, etc.); (7) freshwater ecosystems’ biological resources in the context of unsustainable exploitation/overexploitation; (8) invasive species, parasites, and diseases in freshwater systems; (9) freshwater ecosystems’ vegetation; (10) the relationship between human warfare and water. All of these issues and more create an extremely complex matrix of stressors that plays a driving role in changing freshwater ecosystems both qualitatively and quantitatively, as well as their capacity to offer sustainable products and services to human societies. Only internationally integrated policies, strategies, assessment, monitoring, management, protection, and conservation initiatives can diminish and hopefully stop the long-term deterioration of Earth’s freshwater resources and their associated secondary resources.
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Venohr, Markus, Simone D. Langhans, Oliver Peters, Franz Hölker, Robert Arlinghaus, Lewis Mitchell, and Christian Wolter. "The underestimated dynamics and impacts of water-based recreational activities on freshwater ecosystems." Environmental Reviews 26, no. 2 (June 2018): 199–213. http://dx.doi.org/10.1139/er-2017-0024.

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Recreational activities on, in, and along freshwaters (e.g., boating, bathing, angling) positively contribute to human well-being but can also concurrently stress aquatic ecosystems. While outdoor recreation, aquatic ecosystems, and human well-being form coupled social-ecological systems, inherent fluxes and interactions between these have rarely been properly quantified. This paper synthesizes information on links between water-based recreational activities, effects on freshwater ecosystems integrity and recreational quality, and proposes a novel framework for assessment and integrated management. This framework is based on understanding relationships between recreational quality, demand and use, and recreational use-induced impacts on ecosystem state and function, as well as ecological and social carrying capacities. Current management approaches of freshwater ecosystems addressing economic, environmental, or recreational aspects are poorly linked and harmonized, and are further constrained by inadequate information on the dynamics and densities of recreational uses. Novel assessment and monitoring methods are needed to capture the short-term peak dynamics of water-based recreational uses, and we argue social media could play an increasingly important role here. An integrative recreation ecology management concept combined with peak usage information has great potential to form the basis for next-generation management approaches of freshwater and other ecosystems.
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T. Kingsford, Richard, and Jon Nevill. "Urgent need for a systematic expansion of freshwater protected areas in Australia." Pacific Conservation Biology 12, no. 1 (2006): 7. http://dx.doi.org/10.1071/pc060007.

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Freshwater ecosystems (including inland saline wetlands and mound springs) are among the more imperilled ecosystems in the world. Australia is no exception, but their protection has lagged behind programmes of terrestrial protection. Freshwater protected areas are an essential component of biodiversity conservation programmes, but a systematic approach to their development in Australia has been slow, and hindered by incomplete ecosystem inventories at State and national levels. We examine this problem and suggest avenues for action. Further, while there is no shortage of relevant legislation and policy for protecting freshwater aquatic systems in Australia, some protective mechanisms have not yet been used, many years after their development. In some places "protection" has been only partially applied without regard to important issues of hydrologic connectivity ? with species extinction as a direct consequence. The most urgent priority is to identify those aquatic ecosystems most at risk. A comprehensive national assessment of the conservation status of freshwater ecosystems should be undertaken immediately. Such an assessment would provide both a platform and an impetus for the systematic expansion of the nation's freshwater protected areas. Political will is then essential for effective conservation, utilizing the plethora of conservation and management tools available.
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Nel, J. L., E. Turak, S. Linke, and C. Brown. "Integration of environmental flow assessment and freshwater conservation planning: a new era in catchment management." Marine and Freshwater Research 62, no. 3 (2011): 290. http://dx.doi.org/10.1071/mf09318.

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Integrated water resources management offers an ideal platform for addressing the goals of freshwater conservation and climate change adaptation. Environmental flow assessment and systematic conservation planning have evolved separately in respective aquatic and terrestrial realms, and both are central to freshwater conservation and can inform integrated water resources management. Integrating these two approaches is mutually beneficial. Environmental flow assessment considers dynamic flow regimes, measuring social, economic and ecological costs of development scenarios. Conservation planning systematically produces different conservation scenarios that can be used in assessing these costs. Integration also presents opportunities to examine impacts of climate change on conservation of freshwater ecosystems. We review progress in environmental flow assessment and freshwater conservation planning, exploring the mutual benefits of integration and potential ways that this can be achieved. Integration can be accomplished by using freshwater conservation planning outputs to develop conservation scenarios for assessment against different scenarios, and by assessing the extent to which each scenario achieves conservation targets. New tools that maximise complementarity by achieving conservation and flow targets simultaneously should also be developed.
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Jenkins, K. M., R. T. Kingsford, G. P. Closs, B. J. Wolfenden, C. D. Matthaei, and S. E. Hay. "Climate change and freshwater ecosystems in Oceania: an assessment of vulnerability and adaptation opportunities." Pacific Conservation Biology 17, no. 3 (2011): 201. http://dx.doi.org/10.1071/pc110201.

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Human-forced climate change significantly threatens the world’s freshwater ecosystems, through projected changes to rainfall, temperature and sea level. We examined the threats and adaptation opportunities to climate change in a diverse selection of rivers and wetlands from Oceania (Australia, New Zealand and Pacific Islands). We found common themes, but also important regional differences. In regulated floodplain rivers in dry regions (i.e. Australia), reduced flooding projected with climate change is a veneer on current losses, but impacts ramp up by 2070. Increasing drought threatens biota as the time between floods extends. Current measures addressing water allocations and dam management can be extended to adapt to climate change, with water buy-back and environmental flows critical. Freshwater wetlands along coastal Oceania are threatened by elevated salinity as sea level rises, potentially mitigated by levee banks. In mountainous regions of New Zealand, the biodiversity of largely pristine glacial and snow melt rivers is threatened by temperature increases, particularly endemic species. Australian snow melt rivers face similar problems, compounding impacts of hydro-electric schemes. Translocation of species and control of invasive species are the main adaptations. Changes to flow regime and rising water temperatures and sea levels are the main threats of climate change on freshwater ecosystems. Besides lowering emissions, reducing impacts of water consumption and protecting or restoring connectivity and refugia are key adaptations for conservation of freshwater ecosystems. Despite these clear imperatives, policy and management has been slow to respond, even in developed regions with significant resources to tackle such complex issues.
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Väänänen, Kristiina, Matti T. Leppänen, XuePing Chen, and Jarkko Akkanen. "Metal bioavailability in ecological risk assessment of freshwater ecosystems: From science to environmental management." Ecotoxicology and Environmental Safety 147 (January 2018): 430–46. http://dx.doi.org/10.1016/j.ecoenv.2017.08.064.

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Revenga, C., I. Campbell, R. Abell, P. de Villiers, and M. Bryer. "Prospects for monitoring freshwater ecosystems towards the 2010 targets." Philosophical Transactions of the Royal Society B: Biological Sciences 360, no. 1454 (February 28, 2005): 397–413. http://dx.doi.org/10.1098/rstb.2004.1595.

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Human activities have severely affected the condition of freshwater ecosystems worldwide. Physical alteration, habitat loss, water withdrawal, pollution, overexploitation and the introduction of non-native species all contribute to the decline in freshwater species. Today, freshwater species are, in general, at higher risk of extinction than those in forests, grasslands and coastal ecosystems. For North America alone, the projected extinction rate for freshwater fauna is five times greater than that for terrestrial fauna—a rate comparable to the species loss in tropical rainforest. Because many of these extinctions go unseen, the level of assessment and knowledge of the status and trends of freshwater species are still very poor, with species going extinct before they are even taxonomically classified. Increasing human population growth and achieving the sustainable development targets set forth in 2002 will place even higher demands on the already stressed freshwater ecosystems, unless an integrated approach to managing water for people and ecosystems is implemented by a broad constituency. To inform and implement policies that support an integrated approach to water management, as well as to measure progress in halting the rapid decline in freshwater species, basin-level indicators describing the condition and threats to freshwater ecosystems and species are required. This paper discusses the extent and quality of data available on the number and size of populations of freshwater species, as well as the change in the extent and condition of natural freshwater habitats. The paper presents indicators that can be applied at multiple scales, highlighting the usefulness of using remote sensing and geographical information systems technologies to fill some of the existing information gaps. Finally, the paper includes an analysis of major data gaps and information needs with respect to freshwater species to measure progress towards the 2010 biodiversity targets.
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Mierzejewska, Elzbieta, and Magdalena Urbaniak. "Molecular Methods as Potential Tools in Ecohydrological Studies on Emerging Contaminants in Freshwater Ecosystems." Water 12, no. 11 (October 22, 2020): 2962. http://dx.doi.org/10.3390/w12112962.

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Contaminants of emerging concern (CECs) present a threat to the functioning of freshwater ecosystems. Their spread in the environment can affect both plant and animal health. Ecohydrology serves as a solution for assessment approaches (i.e., threat identification, ecotoxicological assessment, and cause–effect relationship analysis) and solution approaches (i.e., the elaboration of nature-based solutions: NBSs), mitigating the toxic effect of CECs. However, the wide array of potential molecular analyses are not fully exploited in ecohydrological research. Although the number of publications considering the application of molecular tools in freshwater studies has been steadily growing, no paper has reviewed the most prominent studies on the potential use of molecular technologies in ecohydrology. Therefore, the present article examines the role of molecular methods and novel omics technologies as essential tools in the ecohydrological approach to CECs management in freshwater ecosystems. It considers DNA, RNA and protein-level analyses intended to provide an overall view on the response of organisms to stress factors. This is compliant with the principles of ecohydrology, which emphasize the importance of multiple indicator measurements and correlation analysis in order to determine the effects of contaminants, their interaction with other environmental factors and their removal using NBS in freshwater ecosystems.
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Dissertations / Theses on the topic "180301 Assessment and management of freshwater ecosystems"

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Wilson, Gregory B. "Ecosystem-Based Management of the Lake Erie Ecosystem: A Survey-Based Approach to Assessment of Management Needs." Kent State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1302202900.

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Books on the topic "180301 Assessment and management of freshwater ecosystems"

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1951-, Norris Richard H., and Reynoldson Trefor B, eds. Bioassessment of freshwater ecosystems: Using the reference condition approach. Boston: Kluwer Academic, 2004.

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1967-, Bruch Carl, ed. Public participation in the governance of international freshwater resources. Tokyo: United Nations University Press, 2005.

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Programme, United Nations Environment. GEO-6: Global Environment Outlook: Regional assessment for the Pan-European Region. Nairobi, Kenya: United Nations Environment Programme, 2016.

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Reynoldson, Trefor B., Bailey Robert C, and Richard H. Norris. Bioassessment of Freshwater Ecosystems: Using the Reference Condition Approach. Springer London, Limited, 2012.

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Reynoldson, Trefor B., Bailey Robert C, and Richard H. Norris. Bioassessment of Freshwater Ecosystems: Using the Reference Condition Approach. Springer, 2012.

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Public Participation in the Governance of International Freshwater Resources (Water Resources Management and Policy). United Nations University Press, 2005.

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Agenda 21 Earth Summit: United Nations Program of Action from Rio. United Nations, 1992.

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Book chapters on the topic "180301 Assessment and management of freshwater ecosystems"

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"From Catastrophe to Recovery: Stories of Fishery Management Success." In From Catastrophe to Recovery: Stories of Fishery Management Success, edited by Kim D. Hyatt and Margot M. Stockwell. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874554.ch4.

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<i>Abstract.</i>—Since the mid-1800s, human activities have increasingly dominated ecosystems within the Okanagan River basin, which spans the Canada–United States border between British Columbia and Washington State. Over the past 50 years, fisheries for anadromous salmon in the Okanagan River basin virtually disappeared as once abundant stocks, such as Sockeye Salmon <i>Oncorhynchus nerka</i>, declined to fewer than 10,000 adults returning annually (on average) in the 1990s. Threat assessments suggested degradation of freshwater habitat in the Columbia River basin as the general cause for the decline. However, recent record returns (2008–2016 average >200,000 adults) indicated surprising resilience and recovery. Review of recent stock management and restoration efforts focused on Okanagan Sockeye Salmon indicated that management actions and fortuitous events facilitated the restoration of salmon to levels exceeding recorded, historic maxima. Actions and events identified include (1) assessment to determine whether large increases in escapement provided evidence of historic underuse of spawning (Okanagan River) and rearing environment (Osoyoos Lake) capacities; (2) development of a decision support system to facilitate fish-friendly water management, which reduced losses of eggs or fry to density-independent events (Okanagan River and Lake); (3) a small contribution (<10% of total production) of hatchery-origin fish; and (4) a coincidental return to favorable marine conditions for Okanagan Sockeye Salmon. Recovery success also involved development of an ecosystem-based sustainability strategy incorporating a shared vision for dealing with human and natural system impacts on salmon from local (Okanagan River basin) to global (North Pacific Ocean) scales. Key elements that characterized efforts to restore Okanagan Sockeye Salmon were the development of ecosystem-based management (including elevated levels of engagement, cooperation, and collaboration among responsible parties to support a common cause); the creation of new knowledge of complex cause-and-effect ecological, economic, and cultural associations; and the creation of new resource management tools (e.g., models and decision support systems). Science-based collaboration to restore aquatic ecosystems and Okanagan salmon is an example of positive outcomes resulting from implementation of Canada’s 2005 Wild Salmon Policy.
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"Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference." In Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference, edited by Steven J. Cooke, Devin M. Bartley, T. Douglas Beard, Ian G. Cowx, Chris I. Goddard, Carlos Fuentevilla, Nancy J. Leonard, Abigail J. Lynch, Kai Lorenzen, and William W. Taylor. American Fisheries Society, 2016. http://dx.doi.org/10.47886/9789251092637.ch31.

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<em>Abstract</em> .—For decades, inland fisheries and their value have been overshadowed by marine fisheries dominated by the commercial sector. However, there is growing recognition that inland capture fisheries harvest is substantial. Indeed, inland fisheries generate many ecosystem services, most notably their contributions to food security and livelihoods. Here, we present the outcomes of a conference where scientists, resource managers, policymakers, and community representatives from across the globe gathered to discuss inland fisheries. What emerged from discussions at the conference is affectionately termed “The Rome Declaration,” which provides a forward-looking call to action characterized by 10 recommendations: (1) improve the assessment of biological production to enable science-based management, (2) correctly value inland aquatic ecosystems, (3) promote the nutritional value of inland fisheries, (4) develop and improve science-based approaches to fishery management, (5) improve communication among freshwater users, (6) improve governance, especially for shared water bodies, (7) develop collaborative approaches to cross-sectoral integration in development agendas, (8) respect equity and rights of stakeholders, (9) make aquaculture an important ally, and (10) develop an action plan for global inland fisheries. We trust that the outcomes from this conference (including “The Rome Declaration”) will serve as a catalyst for sustained action by the global inland fisheries community to ensure that fish and fisheries are accounted for and incorporated into broader water-resource management discussions and frameworks.
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"Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference." In Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference, edited by Steven J. Cooke, Devin M. Bartley, T. Douglas Beard, Ian G. Cowx, Chris I. Goddard, Carlos Fuentevilla, Nancy J. Leonard, Abigail J. Lynch, Kai Lorenzen, and William W. Taylor. American Fisheries Society, 2016. http://dx.doi.org/10.47886/9789251092637.ch31.

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<em>Abstract</em> .—For decades, inland fisheries and their value have been overshadowed by marine fisheries dominated by the commercial sector. However, there is growing recognition that inland capture fisheries harvest is substantial. Indeed, inland fisheries generate many ecosystem services, most notably their contributions to food security and livelihoods. Here, we present the outcomes of a conference where scientists, resource managers, policymakers, and community representatives from across the globe gathered to discuss inland fisheries. What emerged from discussions at the conference is affectionately termed “The Rome Declaration,” which provides a forward-looking call to action characterized by 10 recommendations: (1) improve the assessment of biological production to enable science-based management, (2) correctly value inland aquatic ecosystems, (3) promote the nutritional value of inland fisheries, (4) develop and improve science-based approaches to fishery management, (5) improve communication among freshwater users, (6) improve governance, especially for shared water bodies, (7) develop collaborative approaches to cross-sectoral integration in development agendas, (8) respect equity and rights of stakeholders, (9) make aquaculture an important ally, and (10) develop an action plan for global inland fisheries. We trust that the outcomes from this conference (including “The Rome Declaration”) will serve as a catalyst for sustained action by the global inland fisheries community to ensure that fish and fisheries are accounted for and incorporated into broader water-resource management discussions and frameworks.
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"Pacific Salmon: Ecology and Management of Western Alaska’s Populations." In Pacific Salmon: Ecology and Management of Western Alaska’s Populations, edited by Jim Martin. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874110.ch48.

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<em>Abstract.</em>—Described in this paper are my experiences with, and reflections on, managing salmon for 30 years with the Oregon Department of Fish and Wildlife. Specifically, I will focus on lessons learned from Oregon’s struggle to effectively manage coho salmon <em>Oncorhynchus kisutch </em>in Oregon’s coastal streams. In the 1980s–1990s, salmon managers discovered that the fishery management strategies were based on false assumptions regarding the capability of freshwater habitat to produce smolts, the constancy of ocean productivity, and the role of hatchery fish in coastal ecosystems. As managers, we misinterpreted spawning stock assessment data and stock-recruitment relationships, an error which, when combined with a pressing need to harvest returning hatchery fish, led to overly aggressive harvest strategies that drove the less productive stocks of Oregon’s wild coastal coho salmon toward extinction. A progressive research program helped identify these errors and the new information generated through this research program helped fishery managers re-formulate management strategies to meet changing threats to coho salmon. As a result, federal listing of Oregon’s coastal coho salmon stocks under the Endangered Species Act was avoided. The successful conservation and harvest of coho salmon stocks in the 1970s led to complacency among fishery managers, which then subtly shifted into arrogance over time. This shift caused managers to be slow to recognize the changes occurring in the ecosystem. Managers must not become complacent or arrogant in their abilities to manage; they must look for potential surprises and must be ready to respond to future challenges and threats to salmon. Three major lessons from were learned from the author’s experiences with Oregon’s coastal coho salmon. Lesson number one—be careful about the use of stock recruitment relationships in management. Meeting the minimum escapement goals does not mean that harvesting the rest of the population is a wise or sustainable practice. Lesson number two—carefully consider planting locations for hatchery fish, and how stocking locations and practices will change the distribution of fishing effort and affect fishing mortality of wild fish and confuse assessment indices. Lesson number three—challenge your assumptions under which you are managing. Conduct the research required to test your assumptions, and change management strategies when necessary. The two big future challenges facing coho salmon are the increasing size of human populations and predicted warming of the climate along Oregon’s coast. The lessons learned over the past 30 years should be applied to future challenges to ensure the sustainability of salmon.
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Reports on the topic "180301 Assessment and management of freshwater ecosystems"

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Albright, Jeff, Kim Struthers, Lisa Baril, John Spence, Mark Brunson, and Ken Hyde. Natural resource conditions at Glen Canyon National Recreation Area: Findings & management considerations for selected resources. National Park Service, April 2022. http://dx.doi.org/10.36967/nrr-2293112.

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Glen Canyon National Recreation Area (GLCA) encompasses more than 0.5 million ha (1.25 million ac) and extends over 322 km (200 mi) from its northern boundary in southern Utah to its southern boundary in northern Arizona. It is one of the most rugged, remote, and floristically diverse national parks on the Southern Colorado Plateau (Thomas et. al 2005) and has more than 4,900 km (3,045 mi) of waterways flowing through its eight Hydrologic Unit Code (HUC 8) watersheds. GLCA’s larger perennial rivers include the Colorado, Escalante, Dirty Devil, San Juan, and Paria, with smaller perennial and intermittent streams flowing into each of these rivers. After the creation of the Glen Canyon Dam, Lake Powell formed, covering 13% of the park’s total land area when full and the national recreation area attracts over 4 million visitors annually, and in 2019 GLCA ranked 19th highest in recreational visits out of all national parks. The National Park Service Natural Resource Condition Assessment Program selected GLCA to pilot its new NRCA project series. NRCA projects evaluate the best available science to provide park managers with reliable, actionable information pertaining to natural resource conditions in their park. For the park-selected focal study resources, this includes consideration of drivers and stressors known or suspected of influencing resource conditions; assessment of current conditions and trends for indicators of condition; and potential near-term and future activities or actions managers can consider, improving their knowledge and management of natural resources in parks. For focal resources that lack adequate data to assess current conditions, a gap analysis is provided (in lieu of a condition assessment) to highlight the present status of knowledge of the resource and to suggest useful indicators, data, and studies for further consideration and investigation. Park managers are encouraged to identify information needs and pose questions during the NRCA scoping process, with the understanding that information will be provided to help address those needs and answer those questions when possible. For a comprehensive list of GLCA managers’ questions and needs, please refer to Appendix A, Table A-1. The focus of GLCA’s NRCA study was the water-dependent resources—tinajas, springs & seeps, including water quality, riparian zone, amphibians, including the northern leopard frog (Lithobates pipiens), and small, native fishes—that are found off the mainstem Colorado River. Managers were interested in these particular environments and the natural resources that depend on them because they are less studied, and the habitats are “biodiversity hotspots” due to the intersection of complex desert and freshwater ecosystems in a region limited by water. The following summaries highlight the key findings of GLCA’s focal resource drivers and stressors (Chapter 2), states (Chapter 3), and manager responses (Chapter 4).
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