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| Registros recuperados: 113 | |
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| Grant, J; Bacher, Cedric; Cranford, P; Guyondet, T; Carreau, M. |
| A fully-coupled biological-physical-chemical model of a coastal ecosystem was constructed to examine the impact of suspended mussel culture on phytoplankton biomass in Tracadie Bay, Prince Edward Island, Canada. Due to the extent of mussel culture there, we hypothesised that shellfish filtration would control the concentration and distribution of phytoplankton and other suspended particles in the bay. Circulation was delineated with a tidally-driven 2D numerical model and used to drive an ecosystem model with a focus on pelagic components including phytoplankton production, nutrients, detritus, and mussels. The benthos were treated as a sink. Nutrients and seston were forced by tidal exchange and river input, with phytoplankton additionally forced by... |
| Tipo: Text |
Palavras-chave: Towed sensors; Nutrient dynamics; Circulation model; Phytoplankton; Carrying capacity; Shellfish aquaculture; Estuaries; Ecosystem model. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-6951.pdf |
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| Barría de Cao,María Sonia; Pettigrosso,Rosa; Parodi,Elisa; Freije,Rubén. |
| The specific composition and abundance variation of the ciliate community from a wastewater discharge zone in the Bahía Blanca estuary, Argentina, were studied all throughout a year, from June 1995 to May 1996. The polluted area exhibited high values of particulate organic matter and nutrients, particularly phosphates. Aloricate ciliates were represented by 15 species belonging to the genera Strombidium Claparède & Lachmann, 1859; Strombidinopsis Kent, 1881; Cyrtostrombidium Lynn & Gilron, 1993; Strobilidium Schewiakoff, 1983; Lohmmanniella Leegaard, 1915 and Tontonia Fauré-Fremiet, 1914. Tintinnids were represented by nine species belonging to the genera Tintinnidium Kent, 1881, Tintinnopsis Stein, 1867 and Codonellopsis Jörgensen, 1924.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tintinnina; Ciliophora; Wastewater; Estuaries. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212003000300001 |
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| Borcier, Elodie; Charrier, Gregory; Couteau, Jérôme; Maillet, Géraldine; Le Grand, Fabienne; Bideau, Antoine; Waeles, Mathieu; Le Floch, Stephane; Amara, Rachid; Pichereau, Vianney; Laroche, Jean. |
| The objective of this study was to develop an integrative approach in ecotoxicology (from biomarkers to population genetics) to assess the ecological status of fish populations. Flounders (Platichthys flesus) collected after the spawning season in the heavily polluted Seine estuary were compared with the moderately polluted Bay of Douarnenez. The muscle energetic reserves were highly depleted in Seine vs. Douarnenez fish. The Seine fish displaying a reduced capacity to manage the oxidative stress and a higher energetic metabolism. An increase in the content of muscle membrane phospholipids (sphingomyelin, phosphatidylserine, free sterols) was detected in the Seine vs. Douarnenez fish. The data integration allowed to hypothesize relationships between... |
| Tipo: Text |
Palavras-chave: Platichthys flesus; Estuaries; Biomarkers; Bioenergetics; Polar lipids; Population genetics. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00658/76981/78238.pdf |
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| Espinosa, Luisa F.; Ramírez, Gustavo; Campos, Néstor H.. |
| En los sedimentos superficiales aledaños al manglar, de cuatro estaciones dentro de la Ciénaga Grande de Santa Marta y una estación en la Bahía de Chengue, se analizaron las concentraciones de seis residuos de plaguicidas organoclorados (lindano, heptacloro, aldrin, pp'DDE, pp'DDD y pp'DDT), mediante la técnica de cromatografía gas-líquido. Se realizaron muestreos trimestrales entre marzo y diciembre de 1993, tratando de abarcar las principales épocas climáticas de la región (seca, lluviosa menor, seca menor y lluviosa mayor). Mediante análisis de varianza multifactorial se encontraron diferencias significativas solamente en las concentraciones de lindano, heptacloro y pp'DDE, entre las diferentes épocas climática; los otros tres compuestos (aldrin, pp'DDD... |
| Tipo: Journal Contribution |
Palavras-chave: Ecology; Chemical analysis; Salinity effects; Gas chromatography; Organic matter; Coastal lagoons; Estuaries; Mangroves; Ecology; Organic matter; Estuaries; Gas chromatography; Coastal lagoons; Mangroves; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_5387; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_11097; Http://aims.fao.org/aos/agrovoc/c_1697; Http://aims.fao.org/aos/agrovoc/c_16190. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/3804 |
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| Sankaré, Y.; Etien, N.. |
| Cet article présente les résultats d'une étude comparative de trois séries de prélèvements dans la zone proche du canal de Bassam avant, 6 mois et 20 mois après son ouverture en septembre 1987. Les effets constatés sont la diminution de l'abondance et la modification de la composition de la macrofaune benthique. Ces effets semblent de longue durée, sans reprise en ce qui concerne l'espèce la plus abondante, Corbula trigona. Les changements observés dans la structure des peuplements sont dus essentiellement à l'augmentation de la salinité, et à un degré moindre, aux modifications de la nature du sédiment. |
| Tipo: Journal Contribution |
Palavras-chave: Benthos; Channels; Estuaries. |
| Ano: 1991 |
URL: http://hdl.handle.net/1834/5521 |
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| Courrat, A.; Lobry, Jeremy; Nicolas, D.; Laffargue, Pascal; Amara, R.; Lepage, M.; Girardin, M.; Le Pape, O.. |
| Estuaries serve as nursery grounds for many marine fish species. However increasing human activities within estuaries and surrounding areas lead to significant habitat loss for the juveniles and decrease the quality of the remaining habitats. This study is based on the data of 470 beam trawls from surveys that were conducted in 13 French estuaries for the purpose of the European Water Framework Directive. It aimed at testing the effects of anthropogenic disturbances on the nursery function of estuaries. With a multispecific approach based on ecological guilds, two fish metrics, abundance and species richness of Marine juvenile migrant fishes, were used as proxies for the estuarine nursery function. Indices of heavy metal and organic contaminations were... |
| Tipo: Text |
Palavras-chave: Contamination; Anthropogenic disturbances; Fish indicators; Estuaries; Nursery grounds; Essential fish habitat. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6291.pdf |
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| Luzuriaga de Cruz, M.. |
| El presente trabajo corresponde al análisis de zooplancton colectado en cinco estaciones localizadas en el río Guayas. La primera estación estuvo situada 10 km. río arriba de la confluencia del río Babahoyo con el río Daule, en un pozo acuífero. Las otras estaciones se situaron en cuatro sitios consecutivos a lo largo del río Guayas. En este trabajo se han identificado 10 especies: Brachionus plicatilis (O. F. Muller) (Rotifera), Alona cambouei Guerne and Richard, 1893; Moina micrura Kurz, 1874 (Cladocera); Acartia tonsa Dana, 1848; Oithona dissimilis Linberg, 1940; Oithona neotropica Herbs, 1967; Oithona oligohalina Fonseca o Bjornberg, 1976; Mesocyclops longisetus (Thiebaud, 1914) y Pseudodiaptomus longispinosus Chad, 1989 (Copepoda). Las especies... |
| Tipo: Journal Contribution |
Palavras-chave: Zooplankton; Fresh water; Geographical distribution; Rivers; Estuaries; Brackish water; Zooplankton; Geographical distribution; Rivers; Estuaries; Brackish water; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_1049. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/2295 |
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| Tidiane, Bousso. |
| Les implications de la biodiversité sur les pratiques de pêche dans les milieux continentaux en général etestuariens en particulier, sont relativement peu étudiées au Sénégal. les connaissances accumulées sur la bio-écologie des espèces et les modes d’exploitation utilisés par les pêcheurs artisans permettent cependant d’en tirer les grands traits. Les estuaires du fleuve Sénégal, du Sine Saloum Et de la Casamance ont des systèmes d’alimentation en eau différents. Les variations du régime pluviométrique et l’évolution de la pluviométrie ces trois dernières décennies (succession d’an.nées humides et d’années particulièrement sèches) ont influencé fortement les caractéristiques physico-chimiques de ces cours d’eau. Les espèces de poissons ont développé des... |
| Tipo: Book |
Palavras-chave: Fisheries hydrography; Biodiversity; Estuaries; Inland fisheries; Lake fisheries; Fishing gear; Backwaters; Fish. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/4583 |
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| Portier, R; Meyers, S. |
| The environmental effect and fate of several agricultural and industrial source toxicants were evaluated in controlled laboratory microcosm systems in the presence of the aminopolysaccharide polymer, chitin. Toxicants examined included methyl parathion, phenol, pentachlorophenol, 2,4 dichlorophenol, 1,2 dichloroethane and Kepone. Microcosm operating parameters, including pH/Eh, salinity, temperature, flow rate and sediment/water interface conditions, were based on comparable in situ measurements. Fate analysis predictions were based on mineralization of the parent toxicant compound as measured by chromatographic analysis or super(14)CO sub(2) expiration. Chitin, amended to continuous flow microcosms, promoted either cometabolic or cooxidative... |
| Tipo: Text |
Palavras-chave: Controlled conditions; Chemical pollutants; Industrial wastes; Pesticides; Metabolism; Food webs; Biodegradation; Ecosystems; Microorganisms; Environmental effects; Brackishwater pollution; Estuaries; Toxicants; Chitin. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-1011.pdf |
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| Camp, Edward V.; Fisheries and Aquatic Sciences Program, School of Forest Resources and Conservation, University of Florida; edvcamp@ufl.edu; Pine III, William E.; Department of Wildlife Ecology and Conservation, University of Florida; billpine@ufl.edu; Havens, Karl; Florida Sea Grant College Program and School of Forest Resources and Conservation, University of Florida; khavens@ufl.edu; Kane, Andrew S.; Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida; Aquatic Pathobiology Laboratories, Emerging Pathogens Institute, University of Florida; Center for Human and Environmental Toxicology, University of Florida; kane@ufl.edu; Walters, Carl J.; Fisheries Centre, University of British Columbia; c.walters@fisheries.ubc.ca; Irani, Tracy; Family, Youth and Community Sciences Department, University of Florida; Institute of Food and Agricultural Sciences, University of Florida; irani@ufl.edu; Lindsey, Angela B; Institute of Food and Agricultural Sciences, University of Florida; Family, Youth and Community Sciences Department and Center of Public Issues Education, University of Florida; ablindsey@ufl.edu; Morris, Jr., J. Glenn; Emerging Pathogens Institute, University of Florida; College of Medicine, University of Florida; JGMorris@epi.ufl.edu. |
| Diagnosing causal factors of change at the ecosystem level is challenging because multiple drivers often interact at various spatial and temporal scales. We employ an integrated natural and social science approach to assess potential mechanisms leading to the collapse of an estuarine social-ecological system, and recommend future paths to increased system resilience. Our case study is the collapse of the eastern oyster (Crassostrea virginica) fishery in Apalachicola Bay, Florida, USA, and the associated impacts on local resource dependent communities. The oyster fishery collapse is the most recent in a series of environmental stressors to this region, which have included hurricanes and tropical storms, drought, and the Deepwater Horizon oil spill. We found... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Climate change; Community resilience; Drought; Estuaries; Oyster fishery. |
| Ano: 2015 |
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| Andreata,José V.; Meurer,Bruno C.; Baptista,Maurício G.S.; Manzano,Felipe V.; Teixeira,Dirceu E.; Longo,Michele M.; Freret,Natalie V.. |
| The ichthyofauna composition of the Baía da Ribeira was analyzed between December 1998 and November2001. The instruments used were an otter-trawl net, beach seines, cast net and visual census. It was registered two classes, composed by 16 orders, 59 families and 148 species. The high wealth of the region is due to the great diversity of environments and its location at the north limit of Argentine an Zoogeographic Province. The instruments diversification, the samples regions and the long sampling period were the responsables to the great numbers of collected species in comparison to some others studies at the same area. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ichthyofauna; Specieslist; Bay; Estuaries. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000400019 |
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| Registros recuperados: 113 | |
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