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Registros recuperados: 25
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Interactions entre comportement et variations de la croissance des juvéniles de la sole (Solea solea) dans les nourriceries des pertuis Charentais ArchiMer
Laffargue, Pascal.
This thesis aimed to identify and analyse processes involved in the functioning of sole Solea solea (L.) nurseries in the Pertuis Charentais, the most important oyster cultivation basin in Europe and a major nursery for the Bay of Biscay sole. Juveniles concentrate in coastal and estuarine habitats, which are essential in the biological cycle of this species but implies (i) adaptation to environmental variability and (ii), accessibility to habitat resources. Assuming that effective nurseries account for what fish must perform in response to habitat constraints, especially in selecting feeding, resting or refuge areas, we used both field works and mesocosm experiments to obtain integrative indicators of the nursery quality (growth rate, Fulton's condition...
Tipo: Text Palavras-chave: Atlantic North East; Shellfish culture; Ingested organic carbon; Feeding; Tri iodothyronine T3; Thyroxine T4; Fulton's K; Growth rate; Flatfish; Essential habitat; Atlantique Nord Est; Conchyliculture; Carbone organique ingéré; Alimentation; Tri iodothyronine T3; Thyroxine T4; K de Fulton; Taux de croissance; Poisson plat; Habitat essentiel.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/these-182.pdf
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Anthropogenic disturbance on nursery function of estuarine areas for marine species ArchiMer
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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Report on options for mitigation fishing impacts in regional seas ArchiMer
Sala, Antonello; Bastardie, Francois; De Carlo, F.; Dinesen, Grete E.; Eigaard, Ole; Feekings, J.p.; Frandsen, R.f.; Jonsson, P.; Krag, L.a.; Laffargue, Pascal; Magnusson, M.; Nielsen, J. Rasmus; Notti, Emilio; Papadoupoulou, Nadia; Polet, Hans; Rijnsdorp, A. D.; Sköld, Mattias; Smith, Chris; Van Marlen, B.; Virgili, Massimo; Zengin, Mustafa.
Tipo: Text
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00310/42144/41456.pdf
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Testing the potential effects of shellfish farming on swimming activity and spatial distribution of sole (Solea solea) in a mesocosm ArchiMer
Laffargue, Pascal; Begout, Marie-laure; Lagardere, Francoise.
Restructuring coastal fish nursery habitats by extensive shellfish fanning in the French part of the Bay of Biscay could influence fish physiology and behaviour and affect the ecological performance of the species. The influence of oyster-trestle cultivation installations on sole (Solea solea) swimming behaviour was investigated using an experimental pond mesocosm. A pen was constructed with three interconnected zones (two with bags of live oysters or oyster shells on trestles, and one free zone). Water renewal depended on the tide. Environmental variables were recorded continuously (temperature, oxygen, pH, meteorological data), every 3-5 days (salinity, samples taken for water analysis and estimation of sedimentation rate) or intermittently...
Tipo: Text Palavras-chave: Tidal pond experiment; Shellfish farming; Flatfish habitat; Fisheries; Environmental constraints; Behavioural responses; Acoustic telemetry.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1848.pdf
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Biological traits as functional indicators to assess and predict (using statistical models) the status of different habitats - ArchiMer
Bolam, Stéphane; Eggleton, Jacqueline D.; Garcia, Clement; Kenny, Andrew J.; Buhl-mortensen, Lene; Gonzalez, Genoveva; Kooten, Tobias; Dinesen, Grete E.; Hansen, Jorgen; Hiddink, Jan Geert; Sciberras, Marija; Smith, Chris; Papadopoulou, K. Nadia; Gumus, Aysun; Van Hoey, Gert; Laffargue, Pascal; Eigaard, Ole; Bastardie, Francois.
One of the most widespread yet manageable pressures imposed on the seabed is that resulting from disturbance of the substrate by towed demersal fishing gear (bottom fishing and dredging). Demersal fishing gears are deployed on every continental shelf in the world and, in UK waters, the footprint of fishing is estimated to account for over 99% of the known footprint of all human pressures on the seabed. It is, therefore, essential that current and future management of fishing activities are based on an improved scientific rationale in order to improve the long-term sustainability of this activity. While the impacts of demersal fishing on the biological characteristics of the seabed have been well-studied, the approaches have tended to focus on assessing...
Tipo: Text
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00310/42140/41451.pdf
Registros recuperados: 25
Primeira ... 12 ... Última
 

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