Bibliografías temáticas / Estuarine ecology

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Literatura académica sobre el tema "Estuarine ecology"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 29 de julio de 2024

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Artículos de revistas sobre el tema "Estuarine ecology"

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Kirby-Smith, William W. y Robert R. Stickney. "Estuarine Ecology". Ecology 66, n.º 6 (diciembre de 1985): 1986. http://dx.doi.org/10.2307/2937398.

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Kirby-Smith, William W. "Estuarine Ecology". Ecology 66, n.º 6 (diciembre de 1985): 1987–88. http://dx.doi.org/10.2307/2937399.

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Kirby-Smith, William W. "Estuarine Ecology". Ecology 66, n.º 6 (diciembre de 1985): 1986. http://dx.doi.org/10.2307/2937397a.

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Baugh, Thomas M., J. W. Day, C. A. S. Hall, W. M. Kemp, A. Yáñez-Arancibia y A. Yanez-Arancibia. "Estuarine Ecology". Estuaries 13, n.º 1 (marzo de 1990): 112. http://dx.doi.org/10.2307/1351438.

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Maitland, Peter S. "Estuarine ecology". Biological Conservation 56, n.º 2 (1991): 242–43. http://dx.doi.org/10.1016/0006-3207(91)90021-z.

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Whitfield, Alan K. "Estuarine ecology". Marine Biology Research 9, n.º 8 (octubre de 2013): 815–16. http://dx.doi.org/10.1080/17451000.2013.789913.

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Guterstam, Björn. "Estuarine ecology". Ecological Economics 3, n.º 2 (julio de 1991): 169–70. http://dx.doi.org/10.1016/0921-8009(91)90019-b.

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Boerner, Ralph E. J. "African Estuarine Ecology". Landscape Ecology 29, n.º 4 (12 de marzo de 2014): 761–62. http://dx.doi.org/10.1007/s10980-014-0005-3.

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Bernardino, Angelo Fraga, Paulo Roberto Pagliosa, Ronaldo Adriano Christofoletti, Francisco Barros, Sergio A. Netto, Pablo Muniz y Paulo da Cunha Lana. "Benthic estuarine communities in Brazil: moving forward to long term studies to assess climate change impacts". Brazilian Journal of Oceanography 64, spe2 (2016): 81–96. http://dx.doi.org/10.1590/s1679-875920160849064sp2.

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Abstract Estuaries are unique coastal ecosystems that sustain and provide essential ecological services for mankind. Estuarine ecosystems include a variety of habitats with their own sediment-fauna dynamics, all of them globally undergoing alteration or threatened by human activities. Mangrove forests, saltmarshes, tidal flats and other confined estuarine systems are under increasing stress due to human activities leading to habitat and species loss. Combined changes in estuarine hydromorphology and in climate pose severe threats to estuarine ecosystems on a global scale. The ReBentos network is the first integrated attempt in Brazil to monitor estuarine changes in the long term to detect and assess the effects of global warming. This paper is an initial effort of ReBentos to review current knowledge on benthic estuarine ecology in Brazil. We herein present and synthesize all published work on Brazilian estuaries that has focused on the description of benthic communities and related ecological processes. We then use current data on Brazilian estuaries and present recommendations for future studies to address climate change effects, suggesting trends for possible future research and stressing the need for long-term datasets and international partnerships.
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Gallop, Shari L., Karin R. Bryan, David P. Hamilton, Melissa Foley y John L. Largier. "ECOENGINEERING FRESHWATER FLOWS FOR ESTUARY HYDROLOGICAL STATE". Coastal Engineering Proceedings, n.º 37 (1 de septiembre de 2023): 17. http://dx.doi.org/10.9753/icce.v37.management.17.

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The quantity, quality and timing of freshwater inflow into estuaries is critical to support estuarine ecosystem health. However, most estuaries are affected by upstream manipulation of freshwater inflows. Coinciding with the United Nations Decade of Restoration (2021–2030), there is great interest in re-creating functional estuarine ecosystems, including by modifying the physio-chemical characteristics with the premise that a functional ecosystem will follow (ecoengineering). To restore estuarine ecology, the physical processes of the system must first be conductive to supporting the re-establishment and sustenance of biota. These physical processes are generally under-monitored and often not used as a measure of restoration success. We explore ecoengineering to restore freshwater inflows to estuaries, focused on hydrological state. We use the Pressure—State—Response (PSR) framework to set the context for this review.
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Tesis sobre el tema "Estuarine ecology"

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Winget, Danielle Marie. "The ecology and diversity of estuarine virioplankton". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 303 p, 2008. http://proquest.umi.com/pqdweb?did=1617912801&sid=7&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Kaselowski, Tanja. "Physico-chemical and microalgal characteristics of the Goukamma Estuary". Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1011130.

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Estuaries are intrinsically complex and dynamic ecosystems that display marked spatial and temporal variability. Because estuaries are situated at the receiving end of catchment activities, they are at particular risk of alterations to their natural complexity. The overarching objective of this study was to gain an overview of the abiotic conditions and biotic response of the Goukamma Estuary, a small temporarily open/closed estuary (TOCE) which is situated in a relatively undisturbed catchment in the Southern Cape. Physico-chemical properties drive estuarine ecology, and together with biological indicators, are commonly assessed to determine the present status of an estuary. During the study, physico-chemical parameters reflected great spatial and temporal variability in response to the mouth state over a 13 month period. Parameters ranged within expected limits, as proposed by the conceptual model for water quality of TOCE’s (Snow and Taljaard 2007). Of particular importance was the prominent occurrence of salinity stratification and hypoxic conditions (dissolved oxygen [DO] < 3 mg l-1) during both open and closed mouth states. Data indicated that in the wide and shallow lower reaches, weak stratification gradients were present and oxygenated conditions (DO > 6 mg l-1) were maintained throughout the water column mainly by wind and tidal action. However, stratification increased towards the deeper, channel-like middle and upper reaches of the estuary, followed by a significant reduction in bottom DO concentrations and development of hypoxia and anoxia. Bottom water hypoxia commonly occurs in microtidal estuaries due to the limited influence of mixing forces, mainly by wind and tidal action. The Goukamma Estuary is a channel-like microtidal estuary where stratification effectively limited oxygenation of the bottom water which resulted in frequent occurrence of bottom water hypoxia. During June 2010 when the highest local rainfall (75 mm) was recorded for the region, salinity and DO data showed that this amount of rainfall was insignificant as it did not replenish the water column of oxygen. Only the surface 0.5 m layer was fresh and oxygenated while below this, the water column was completely hypoxic. In an unimpacted state, the Goukamma Estuary is a blackwater system and is expected to be nutrient poor; however, farming activities in the catchment have resulted in elevated nutrient concentrations. This study showed that significantly higher nutrient concentrations were measured in the middle and upper reaches of the estuary, adjacent to cattle farms situated in the floodplain of these reaches. Nutrient concentrations represented mesotrophic (dissolved inorganic nitrogen [DIN] > 500 μg l-1) to eutrophic conditions (dissolved inorganic phosphorus [DIP] > 25 μg l-1). Nutrient input stimulated phytoplankton to attain a significantly high biomass, ranging between 0.3 – 112 μg l-1 (~ 7.7 ± 1.3 μg l-1; n = 128) and 0.8 – 289 μg l-1 (~ 21.1 ± 4.4 μg l-1; n = 80) during the open and closed states, respectively. High organic loads are associated with high oxygen demands which consequently result in hypoxia following decomposition. Exacerbated by natural salinity stratification which effectively limits oxygenation of the water column, unnaturally high nutrient concentrations and coinciding organic loads place the estuary at particular risk of degradation. This study captured key patterns and processes by quantifying salinity, oxygen and nutrient concentrations in addition to biological indicators (phytoplankton biomass and community composition). Considering possible budget constraints, it is recommended that monthly salinity and oxygen concentrations should be monitored as well as seasonal nutrient concentrations. It is also recommended that riparian buffer zones should be established in the middle and upper reaches of the estuary, as these vegetation buffers have been well documented to contribute to nutrient attenuation and improved water quality from agricultural run-off.
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Moore, Stephanie Kay School of Biological Earth &amp Environmental Sciences UNSW. "Tracers and indicators of estuarine nutrients". Awarded by:University of New South Wales. School of Biological, Earth and Environmental Sciences, 2005. http://handle.unsw.edu.au/1959.4/21993.

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Three novel methods were examined to assess the effects of nutrient enrichment in three sub-tropical east Australian estuaries with differing levels of catchment disturbance. The Manning and Wallamba River catchments are 8927 and 500 km2 respectively and support intensive livestock agriculture and some residential development, whereas the smaller Wallingat River catchment is 185 km2 and is mostly forested. The Wallamba and Wallingat Rivers flow into Wallis Lake, which was the site of an environmental crisis in 1997 when the consumption of sewage-contaminated locally grown oysters caused an outbreak of Hepatitis A. This study contributes valuable and extensive water quality data to assess rehabilitative works in Wallis Lake, and in other estuaries, to reduce the input of nutrients such as sewage. The importance of various sources, loads and sinks and the dispersion and assimilation of nutrients were quantified and compared for each estuary. An ecological model coupled with a one-dimensional hydrodynamic box model revealed that nearly all of the nitrogen inputs to the modified Wallamba River entered as runoff from the intensively livestock farmed upper catchment. In contrast, in the forested Wallingat River nitrogen was generated internally from anoxic sediments and was also longitudinally dispersed upstream from the junction with the modified Coolongolook River. Bloom conditions of up to 59 mg m-3 were observed in the Wallamba River between 7 and 11 days after the storms, but in spite of high concentrations of biologically available nitrogen in the forested Wallingat River, phytoplankton biomass was low due to phosphate limitation. Longitudinal dispersion could not counter phytoplankton growth in the modified Wallamba River, in spite of large increases in river flow. Estimates of grazing pressure by the pygmy mussel, Xenostrobus securis, demonstrate that it could contribute up to half of the phytoplankton loss. The inter-tidal mangrove pneumatophore habitat of X. securis allows filtering of the upper water column from the lateral boundaries in a vertically stratified water column, exerting top-down control on phytoplankton biomass. The optical plankton counter (OPC) can provide an in situ, rapid assessment of zooplankton productivity over large temporal and spatial scales from the size distribution of zooplankton. High concentrations of sub-resolved particles, including suspended detritus, have hampered the use of the in situ OPC in estuaries. Up to 58 counts L-1 due to the coincidence of sub-resolved particles passing through 100 ??m mesh were detected by the laboratory OPC in Manning, Wallamba and Wallingat River water samples. The influence of these erroneous counts on in situ OPC measurements was assessed by comparison with measurements of simultaneously collected net zooplankton measured using the laboratory OPC. In situ OPC measurements of total zooplankton abundance could be corrected for erroneous counts of sub-resolved particles using laboratory OPC measurements of 100 ??m mesh filtered water samples from the same site, but estimates had large associated error and information on the size structure of the zooplankton community is sacrificed. In contrast to expected relationships, no meaningful or significant correlations were found between the number or biomass of sub-resolved particles and in situ light attenuance. Laboratory OPC measurements of net zooplankton in each estuary revealed that the modified Manning and Wallamba Rivers supported a greater biomass of zooplankton compared to the forested Wallingat River. The normalised biomass size spectra of net zooplankton responded to both production of small particles and predation and loss of large particles. The effect of catchment disturbance on the nitrogen and carbon stable isotope ratios (??15N and ??13C) of X. securis was investigated in the three estuaries. Manning and Wallamba River mussels were enriched in ??15N by an average of 3.2??? and 1.5??? respectively compared to mussels from the forested Wallingat River. The isotope values of particulate organic matter showed a similar pattern to mussels, indicating a direct link between them within each estuary. A multiple regression model of mussel ??15N using the fractions of land used for livestock agriculture and residential development within 5 km zones from river networks to a distance equivalent to a tidal ellipse from sites explained 67% of the variation in mussel ??15N with 95% of the differences lying within 1.6??? of observed values. Increasing fractions of land used for livestock agriculture in the regression equation depleted estimated mussel ??15N indicating the use of cow manure as a nutrient source with a value of 2.0???. Increasing fractions of land used for residential development enriched estimated mussel ??15N, indicating the use of human-derived waste with a value of 20.8???.
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Chuwen, Benjamin Michael. "Characteristics of the ichthyofaunas of offshore waters in different types of estuary in Western Australia, including the biology of black bream Acanthopagrus butcheri /". Murdoch University Digital Theses Program, 2009. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20100210.154423.

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Quinnell, Susan Elizabeth. "Estuarine Canaries: Macrobenthos Measures Pollution when Chemical Tests Cannot". Thesis, Griffith University, 2012. http://hdl.handle.net/10072/366573.

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Bramble Bay, an estuary with a long history of contamination, appears to have crossed multiple tipping points into a state of unstable biomass dominated by opportunistic species. In early 1996 mass mortality events began to affect the bay’s macrobenthic community within a few days of modest rainfall (30 mm) over the catchments. The numbers of wading birds and fish using the beach at such times greatly declined. Between mortality events the macrobenthos staged partial recoveries. However, 10 years later the beach had not attained the diversity of species it supported prior to 1996. Also, the riverine estuaries that drain the catchments had been severely affected. Monitoring in 1998 – 2000 showed that the abundance of riverine macrobenthos in six drainage systems was < 15% of that in 1972 – 1973 when these drainage systems were extensively surveyed and < 2.5% of that after extreme flooding in 1974. Remarkably, the variance of total abundance within estuaries had been reduced by 90 - 99%. Nearly all of the once-dominant peracarids had gone. Chemical tests could not explain this. Nor are other simplistic explanations credible, such as floods or changes in the rate of sedimentation, because only some components of the macrobenthos have been adversely affected. Most deposit feeders have been severely reduced, however, deposit-feeding annelids as well as suspension feeding molluscs and crustaceans have continued to thrive amongst the sediments.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
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Helton, Rebekah R. "Ecology of benthic viruses in marine and estuarine environments". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 214 p, 2007. http://proquest.umi.com/pqdweb?did=1362525081&sid=14&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Wood, Tamara Michelle. "Numerical modeling of estuarine geochemistry /". Full text open access at:, 1993. http://content.ohsu.edu/u?/etd,240.

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Fruchter, Jesse. "DO LARGE, INFREQUENT DISTURBANCES RELEASE ESTUARINE WETLANDS FROM COASTAL SQUEEZING?" OpenSIUC, 2012. https://opensiuc.lib.siu.edu/theses/923.

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As disturbance frequencies, intensities, and types have changed and continue to change in response to changing climate and land-use patterns, coastal communities undergo shifts in both species composition and dominant vegetation type. Over the past 100 years, fire suppression throughout the Northern Gulf of Mexico coast has resulted in shifts towards woody species dominance at the expense of marsh cover. Over the next 100 years, sea levels will rise and tropical storm activity is projected to increase; resultant changes in salinity could reduce cover of salt-intolerant fresh marsh species. Together, the effects of fire suppression upslope and rising salinities downslope could "squeeze" fresh marsh species, reducing cover and potentially threatening persistence. To mitigate the effects of fire suppression, the use of prescribed fire as a management tool to mimic historic conditions is becoming increasingly widespread and will likely gain further popularity during the 21st century. Ecological shifts that will result from changing disturbance regimes are unknown. It was hypothesized that two recent hurricanes, Ivan and Katrina in 2004 and 2005, respectively, and a prescribed fire, in 2010, differentially affected species along the estuarine gradient and drove overall shifts away from woody dominance. Overall community composition did not change significantly in the intermediate and fresh marsh zones. However, significant changes occurred in the salt and brackish marshes and in the woody-dominated fresh marsh-scrub ecotone zones. Relative to 2004, woody species abundance decreased significantly in all zones in 2006, following Hurricanes Ivan and Katrina, and 2012, following the hurricanes and fire, though woody species regeneration in the marsh-scrub ecotone had begun to occur by 2012. It is hypothesized that interacting changes in fire and tropical storm regimes could release upslope areas from coastal squeezing.
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Fritz, Alyce T. "Trophodynamics of estuarine (salt marsh) heterotrophic nanoplankton (microbial ecology, salt marsh ecology, choanoflagellates, Virginia)". W&M ScholarWorks, 1986. https://scholarworks.wm.edu/etd/1539616651.

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Seasonal occurrence and activity of heterotrophic nanoflagellates (HNANO or heteroflagellates) and bacteria were studied in a sheltered brackish water embayment of Chesapeake Bay wetlands (Virginia, USA) over a three year period (1981 - 1984). Epifluorescence direct counts and Scanning and Transmission Electron Microscopy (SEM and TEM) techniques were used for the description of organisms, enumeration, and biomass determinations. Seasonal bacterial growth rates and growth and grazing rates of bactivorous HNANO were estimated using diffusion chambers equipped with Nuclepore polycarbonate membrane filters in natural salt marsh tidal pools. Environmental monitoring of nanoplankton populations revealed a seasonal pattern of bacterial abundances with temperature while heteroflagellate abundances and growth rates showed no seasonal pattern nor correlation with fluctuations in bacterial densities. Heteroflagellate populations were dominated by 34 to 50 (mu)m('3) sized monads, choanoflagellates, bodonids, and Paraphysomonas sp., all found in varying abundances throughout the year. Blooms were concurrent with extended low tide or specific bacterial populations (i.e., cyanobacteria) typical of spring and autumn periods. Heteroflagellate growth in diffusion chambers reflected the environmental blooms and increased diversity of low water assemblages. Growth and grazing rates of heteroflagellates at ambient densities thus could account for 20 to 80% of daily bacterial carbon production. Although heteroflagellate ingestion rates did not regulate seasonal bacteria densities or vice versa, maximum growth of bacteria and heteroflagellates in chambers was closely coupled. Heteroflagellate grazing activity may regulate the rate of bacterial production by preventing substrate limitation and maintaining the population in an active growth phase. The seasonal study demonstrated the dynamic nature of nanoplankton populations during autumn and spring transitional periods. SEM photomicroscopy revealed that the dominant component of spring blooms may be composed of several members of the loricate choanoflagellate family, Acanthoecidae. Using modified EM techniques, eleven Acanthoecidae choanoflagellates species, identified from spring in situ chamber experiments, were described. In situ growth and grazing rates for the spring chamber populations ranged from 0.023 h('-1) to 0.196 h('-1) and 40 to 210 bacteria h('-1) respectively. These high rates represent an opportunistic response to optimum conditions and an expression of maximum grazing potential. (Abstract shortened with permission of author.).
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Vorsatz, Jeanne Pauline. "Ecological role of estuarine brachyuran crabs in mangrove and salt marsh estuaries, Eastern Cape, South Africa". Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1108.

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Crabs are conspicuous inhabitants of temperate salt marshes and tropical mangroves and interact with their environment through several processes. However, detailed information on crab community processes is absent for most South African estuaries and nearshore coastal regions. This study evaluated the primary producers supporting crab species in the salt marsh dominated Swartkops estuary and the mangrove Mngazana estuary. Various methods estimating crab abundances were also assessed in different microhabitats and the larval distribution of crabs in the coastal zone was also investigated. Various methods for estimating crab abundance have been employed in the past, each with its inherent biases. The microhabitat of a mangrove forest in Australia was structurally altered by the manipulation of the litter, pneumatophores and the associated algae. These alterations did not affect the behavioural activity or the numbers of crabs recorded in any of the experimental treatments by either visual counts or pitfall traps. However, the number of crabs caught in the pitfall traps differed between the sites. Species-specific behaviour which was not investigated in this study may bias crab abundance estimates when using pitfall traps and therefore requires further investigation. Benthic consumers inhabiting shallow coastal environments may ultimately have the origin of their nutrition in a number of possible sources. Isotopic and gut content analysis of Thalamita crenata and juvenile Scylla serrata in the Mngazana estuary in South Africa revealed that these two portunids are able to share a habitat by resource partitioning. Differences were noted for species-specific utilization of primary producers not only between seasons within a site, but also between sites. This highlighted the use of locally produced primary producers sustaining food webs in estuaries. Mangrove production in the Mngazana estuary is very important and contributes to most of the carbon in the underlying sediments in the mangrove forest. However, the relatively large number of species and biomass encountered in this estuary may also be attributed to the fact that the different species are able to exploit of a number of different resources. The variation in stable isotope analysis of the different crab species throughout the estuary indicated that these crabs able to occupy the same habitat by feeding on a number of different resources and may preferentially select for a specific primary producer. A stable isotope of crabs in the salt marsh Swartkops estuary indicated that the dominant primary producer sustaining crab communities may even take place on a relatively smallscale. Sesarma catenata found at the inner marsh site recorded more depleted carbon signatures than those encountered in the other sites approximately 100 m away, and reflected signatures similar to the locally-encountered inner marsh plants. The relatively enriched nitrogen signatures of the anthropogenically-impacted Swartkops estuary is an indication of extensive inputs due to urbanization and industrialization, in contrast to the relatively pristine Mngazana estuary which exhibited low nitrogen signatures. Emphasis has been placed on the abiotic component of the exchange of nutrients and energy, although living organisms may also be transported, both actively and passively, between ecosystems. Little variation in either species composition or abundance was found between seasons for the larval distribution of brachyuran crabs on the east coast of South Africa. Due to the lack of published larval descriptions, larvae could not be identified to species level and it was therefore not possible to identify whether the larvae were hatched or spawned in an estuary or in a marine environment, or whether the larvae originated in the northern tropical regions. Frequent wind-reversals which are common in this region may retain larvae close inshore and supply the southern temperate locations with larvae from the northern locations. In conclusion, this study has shown that in highly productive systems with a number of potential primary producers, the crabs that inhabit the estuary show a marked diversity in resource utilization which could potentially allow a number of closely related species to occupy different trophic levels. This study also highlights the importance of locally produced sources in an estuary, which may occur on very small scales and this needs to be factored in with the design of any future stable isotope studies of this nature.
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Libros sobre el tema "Estuarine ecology"

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Day, John W., Byron C. Crump, W. Michael Kemp y Alejandro Yáñez-Arancibia, eds. Estuarine Ecology. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.

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1945-, Day John W., ed. Estuarine ecology. New York: Wiley, 1989.

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International Estuarine Research Conference (8th 1985 University of New Hampshire). Estuarine variability. Orlando, Fla: Academic Press, 1986.

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C, Heip y Herman P. M. J, eds. Major biological processes in European tidal estuaries. Dordrecht: Kluwer Academic Publishers, 1995.

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Safʹi︠a︡nov, G. A. Ėstuarii. Moskva: Myslʹ, 1987.

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Donovan, Michael L. National estuarine inventory: Land use and the Nation's estuaries. Rockville, Md: National Oceanic and Atmospheric Administration, 1987.

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Tillamook Bay National Estuary Project (Or.). Watershed assessment modules. Garibaldi, OR: The Project, 1998.

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T, Balasubramanian, Ajmal Khan S, Rajendran N. Dr, Raghunathan Seena, Baskara Sanjeevi S, Environmental Information System Centre (Porto Novo, India) y India. Ministry of Environment and Forests., eds. Estuaries of India: State-of-the-art-report. Parangipettai, Tamil Nadu: Environmental Information System Centre (for Estuaries, Mangroves, Coral Reefs, and Lagoons), 2002.

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Crane, Julian R. Estuaries: Types, movement patterns and climatical impacts. Hauppauge, N.Y: Nova Science Publishers, 2009.

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Safʹi͡anov, G. A. Ėstuarii. Moskva: "Myslʹ", 1987.

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Capítulos de libros sobre el tema "Estuarine ecology"

1

Benfield, Mark C. "Estuarine Zooplankton". En Estuarine Ecology, 285–302. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch11.

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Wilson, James G. y John W. Fleeger. "Estuarine Benthos". En Estuarine Ecology, 303–25. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch12.

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Cowan, James H., Alejandro Yáñez-Arancibia, Patricia Sánchez-Gil y Linda A. Deegan. "Estuarine Nekton". En Estuarine Ecology, 327–55. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch13.

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Bianchi, Thomas S. "Estuarine Chemistry". En Estuarine Ecology, 39–83. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch3.

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Paerl, Hans W. y Dubravko Justić. "Estuarine Phytoplankton". En Estuarine Ecology, 85–110. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch4.

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Blum, Linda K. y Aaron L. Mills. "Estuarine Microbial Ecology". En Estuarine Ecology, 235–61. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch9.

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Hagy, James D. y W. Michael Kemp. "Estuarine Food Webs". En Estuarine Ecology, 417–41. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch16.

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Reyes, Enrique, Kenneth Rose y Dubravko Justić. "Estuarine Ecological Modeling". En Estuarine Ecology, 519–36. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch21.

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McGlathery, Karen J., Kristina Sundbäck y Peggy Fong. "Estuarine Benthic Algae". En Estuarine Ecology, 203–34. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch8.

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Day, John W., Alejandro Yáñez-Arancibia, W. Michael Kemp y Byron C. Crump. "Introduction to Estuarine Ecology". En Estuarine Ecology, 1–18. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch1.

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Actas de conferencias sobre el tema "Estuarine ecology"

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Демиденко, Н. y N. Demidenko. "COASTAL AND ESTUARINE SEDIMENT DYNAMICS IN THE MEZEN BAY AND ESTUARIES MEZEN AND KULOY". En Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce39a80e646.57291683.

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In the Mezen bay and estuaries Mezen and Kuloy can be high concentrations of mud suspension there, involving the formation at times mobile suspensions and settled mud. Within estuaries the river water is mixed with the sea water by the action of tidal motions, by waves on the sea surface and by the river discharge forcing its way to the sea. Nearly all shallow tidal estuaries, where currents exceed about 1,0m s-1 and where sand is present, have sand waves. Sand waves have a variety of cross-sectional and plan forms.
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2

Кремез, В., V. Kremez, В. Островерх y V. Ostroverh. "ON THE METHODS OF ESTUARINE AND COASTAL MORPHODYNAMICS WITH NUMERICAL AND GEOINFORMATICAL SYSTEMS". En Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce3cca6d662.10106976.

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The questions on kinematics and morphodynamics of estuarine zones assessment are considered with help of numerical and GIS methods for natural and construction systems monitoring. The monitoring is fulfilled on the basis of the time-spatial database for estuarine part of Danube to Black Sea navigational canal trough the Bystry branch of Cilia delta. To the database we include not only river and reservoir shores and depth but the constantly acting hydrometeorogical parameters as well. The database is used for river and canal navigation analysis, coastal line and fairway stability.As a result we propose the recommendations on protection and training dike structures due to the principle of natural analog type constructures for dredging, seawater rejection and soil deposits utilization as material for artificial offshore structures
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3

Luczkovich, Joseph, Mark Sprague, Cecila S. Krahforst, John Walsh y Dean Carpenter. "Acoustics and estuarine ecology: using active and passive methods to survey the physical environment, vegetation and animals in North Carolina's coastal estuaries". En ICA 2013 Montreal. ASA, 2013. http://dx.doi.org/10.1121/1.4799135.

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Айбулатов, Д., D. Aybulatov, Р. Казюлин y R. Kazyulin. "THE PECULIARITIES OF WATER RUNOFF AND SEDIMENT YEILD IN THE MOUTH OF THE RIVERS OF BOLSHOI SOCHI DISTRICT". En Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce37a295261.75393256.

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Estuaries of the rivers in Bolshoi Sochi district are the most densely populated areas of the Black Sea coastline area in Russian Federation. Study of water runoff and sediment yield in the mouth of the rivers has an important role in applied science, because the frequency of dangerous hydrological processes is very high. Floods and lateral rivers erosion can leads to catastrophic emergencies. Analysis of hydrological data and physiographic properties of the region help to make several conclusions about water runoff and sediment yield of the region rivers: average annual water and sediment runoff tends to increase, maximum flood discharges increase too. The mouths of the rivers in Bolshoi Sochi District were classified by natural and anthropogenic factors. In the estuaries district were calculated and ploted on topographic maps flooding areas. Also in the work considered information of the anthropogenic intervention in the natural environment of the rivers mouths.
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5

Кофф, Г., G. Koff, И. Чеснокова, I. Chesnokova, О. Борсукова, O. Borsukova, О. Павленко y O. Pavlenko. "SEISMOLOGICAL, AND GEOMORPHIC HYDROGRAPHIC TSUNAMI RISK FACTORS FOR FAR EAST COAST OF RUSSIA". En Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce3bc81a130.53815843.

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The problems of formation of the risk of a tsunami on the coast of the southern regions of the Far East Federal District. As the risk factors used features such as the relative position of the epicenters of tsunamigenic earthquakes and the coast, the underwater terrain coast, the degree of closeness of the studied bays, the presence or absence of wide beach and the first marine terraces, flowing into the characteristics of the studied coast estuaries. The factors subjected to expert estimates, taking into account their influence on the formation of the risk of a tsunami. The characteristics of the underwater topography, location in relation to the shores and bays of the epicenters of tsunamigenic earthquakes are estimated as zonal factors. Characteristics of marine terraces and river valleys are treated as local risk factors. For the first time for the coasts of Primorye and Khabarovsk area made of consequences of historical tsunamis: the presence of the devastation on the shores endured the tsunami waves from the open sea into the rivers and beaches ships, coast erosion, as well as descriptions of eyewitnesses. Characteristics of risk assessments are preceded by the WHO as areas of possible foci of tsunamigenic earthquakes, fault description and characteristics of buildings coasts. Risk assessment of the tsunami produces by the method proposed by G. Koff et al. The following characteristics was taken into account: the nature of the underwater coastal slope, exposure, banks in relation to the tsunami, the presence of the beach or I marine terrace, the presence of river valleys in the rear of the bay, the degree of openness of the bay. Overall, Nakhodka Bay and the Vostok Bay have the same performance tsunami -28,2 points. However, within these bays be provided with separate bays, with a higher risk assessment tsunami. Tsunami response coasts was made for these areas for the first time. Analysis of the materials allowed to identify the most tsunami zone, and to recommend the use of certain sections of the proposed development.
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6

Dean, K. Bruce, Femi Ade, Les Sawatsky, R. Gray, John Cutler y Neil Wheeler. "Remedial Protection of a Pipeline Crossing of the River Wye, UK". En 2000 3rd International Pipeline Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/ipc2000-149.

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This project is of interest to those involved in construction, siting and repair of pipeline crossings of rivers, streams and estuaries. In early 1999, Mainline Pipelines Limited discovered that their pipeline crossing of the River Wye had been exposed by river scour. Originally laid in 1972, the line provides petroleum products main supply from the port at Milford Haven to the Midlands, England, and operates at a high pressure. A break in or temporary shutdown of the pipeline would have had serious implications. Remedial protection options were needed rapidly, to ensure the integrity of the pipeline. A review of historical air photographs and maps, dating back to 1888, showed that the meandering channel of the River Wye has shifted to the north at an average rate of 0.65m per year. Thus, the remedial works would have to account for ongoing vertical and lateral scour. It was recognized that river training works would be required at the site to ensure continued protection of the pipeline in the long-term. The recommended design and remedial construction techniques allowed for safety issues, the potential impact on the river ecology, recreational river users, the river hydrology and restricted access to the steep northern riverbank. The design comprised filling of the eroded riverbed and bank with rock aggregate and placing a protective layer of graded rock riprap. Grout filled fabric formwork bags were placed beneath the pipeline to minimise deflection and the development of unacceptable stresses in the exposed length during rock placement. Rock filled wire mattresses were placed immediately on top of the pipeline to protect it from point loading of the angular riprap. A satellite guided positioning system was used to control material placement, and environmental monitoring of river water quality was carried out continuously during construction.
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de Goede, Erik, Tim Wagner, Reimer de Graaff y Ben Sheets. "Modelling of Ice Growth and Transport on a Regional Scale, With Application to Fountain Lake, Minnesota, USA". En ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24002.

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Numerical modelling of ice growth and transport on regional scales such as lakes, estuaries, or coastal seas can provide crucial input for the planning and design of offshore structures in arctic, sub-arctic, or even mid-latitude regions. It is in these regions that the total loading of ice on infrastructure such as platforms, sea defense structures, sub-sea pipelines, or wind turbines may exceed the total loading of waves and currents, and may therefore determine the design. Thus, the interaction of ice with planned structures might be significant, and accurate models of ice dynamics would be invaluable to engineering in these regions. There is, however, a general lack of ice models that can be applied to study these complex integral physical processes at regional scales. Typically, ice modelling focusses on either large oceanic scales using climate models, or on local scales to study small-scale ice-structure interactions. The regional scale model presented in this paper is targeted at bridging this scale gap. This paper describes the implementation of an ice module in Delft3D. Delft3D is a flexible integrated modelling suite, which simulates two- and three-dimensional flow, sediment transport, morphology, waves, spills, water quality, and ecology, and is capable of handling the interactions between these processes. By dynamically coupling an ice module with these existing modules it becomes possible to not only predict the growth, melting, and transport of open-water ice and associated hydrodynamics, but also to study the interaction of ice with, for example, river banks, the seabed, water quality, or spills of fine sediments or oil. This paper presents the major concepts of the new Delft3D ice module, as well as example applications for various lakes in The Netherlands and Fountain Lake, in Minnesota, USA. Finally, a hypothetical case of ice transport modelling is presented.
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8

Schindler, Rob, Sean Comber y Andrew Manning. "METAL POLLUTANT PATHWAYS IN COHESIVE COASTAL CATCHMENTS: INFLUENCE OF FLOCCULATION ON PARTITIONING AND FLUX". En GEOLINKS International Conference. SAIMA Consult Ltd, 2020. http://dx.doi.org/10.32008/geolinks2020/b2/v2/09.

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Potentially toxic metals (PTMs) dispersed within catchments from land-based sources pose serious, long-term threats to aquatic ecology and human health. Their chemical state or form affects the potential for transportation and bioavailability and ultimate environmental fate. PTMs are transported either as (1) particulates adsorbed onto sediments, or 2) solutes in groundwater and open channel flow. Cohesive sediment occupies a major part of the world’s coastlines. PTMs are readily sorbed onto clay/silt and consequently particulate-borne PTMs dominate in estuaries and coastal waters. Sediments also represent a considerable ‘sink’ of contaminants which can be periodically remobilized. The role of suspended particulates in the uptake, release, and transport of heavy metals is thus a crucial link in understanding PTM dispersion in these environments. Cohesive sediment is subject to flocculation which dictates the behaviour of suspended sediment. PTM partitioning, flocculation and particulate-borne PTM dynamics are spatially and temporally variable in response to a complex array of inter-related physical and chemical factors exhibited within tidal catchments. However, knowledge of the dispersion and accumulation of both particulate and soluble forms of PTMs within cohesive coastal catchments is limited by little understanding of the association of PTMs with flocculated sediments and their subsequent deposition. This study investigates the influence of changing hydrodynamics and salinities to reveal the partitioning coefficients (Kp) and PTM settling flux (PTMSF) for different spatial and temporal locations within an idealized mesotidal catchment. The data show that the ratio of soluble and particulate-borne PTMs are dependent on salinity and flocculation, and that PTMSF is dependent upon partitioning and flocculation dynamics. Kp is largely dictated by salinity, but floc size and suspended particulate matter concentration (SPMC) are also influential, particular for PTMs with low chloride complexation and in freshwater. PTMSF is a function of Kp, floc size and settling velocity and varies by up to 3 orders of magnitude in response to changing environmental conditions. Findings will improve our ability to predict and monitor contaminant transport for PTMs generated by industries such as agriculture, mining, fisheries, aquaculture & marine engineers. They can be incorporated in existing decision making tools, and help improve numerical modelling parameteristion, to maintain environmental quality standards and limit the impacts of bioavailability of metals in aquatic environment.
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Informes sobre el tema "Estuarine ecology"

1

Ray, Gary L. Invasive Animal Species in Marine and Estuarine Environments: Biology and Ecology. Fort Belvoir, VA: Defense Technical Information Center, enero de 2005. http://dx.doi.org/10.21236/ada430308.

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Gangstad, E. O. The Ecology and Environmental Impact of Marshland and Estuaries. Fort Belvoir, VA: Defense Technical Information Center, diciembre de 1992. http://dx.doi.org/10.21236/ada268883.

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