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Registros recuperados: 7
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A quantitative estimate of the function of soft-bottom sheltered coastal areas as essential flatfish nursery habitat ArchiMer
Trimoreau, E.; Archambault, Benoit; Brind'Amour, Anik; Lepage, Mario; Guitton, Jerome; Le Pape, O..
Essential fish habitat suitability (EFHS) models and geographic information system (GIS) were combined to describe nursery habitats for three flatfish species (Solea solea, Pleuronectes platessa, Dicologlossa cuneata) in the Bay of Biscay (Western Europe), using physical parameters known or suspected to influence juvenile flatfish spatial distribution and density (i.e. bathymetry, sediment, estuarine influence and wave exposure). The effects of habitat features on juvenile distribution were first calculated from EFHS models, used to identify the habitats in which juvenile are concentrated. The EFHS model for S. solea confirmed previous findings regarding its preference for shallow soft bottom areas and provided new insights relating to the significant...
Tipo: Text Palavras-chave: Coastal and estuarine dependent species; Nursery ground; Habitat suitability models; Geographic Information System; Bay of Biscay.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00164/27546/25720.pdf
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Effect of an invasive mollusc, American slipper limpet Crepidula fornicata, on habitat suitability for juvenile common sole Solea solea in the Bay of Biscay ArchiMer
Le Pape, Olivier; Guerault, Daniel; Desaunay, Yves.
This study describes the effect of an invasive mollusc, the slipper limpet Crepidula fornicata, on the distribution and abundance of young-of-the-year sole Solea solea in coastal nursery areas, based on beam-trawl surveys in the Bay of Biscay (France) over a 3 yr period (2000 to 2002). As habitat suitability for juvenile sole varies according to bathymetry and sediment structure, these factors and the density of the slipper limpet were used as descriptors in generalised linear models of habitat suitability to characterise the distribution of juvenile sole. The models were based on a delta distribution, coupling a binomial model testing for the presence of juvenile sole with a log-normal distribution for density when juveniles were known to be present....
Tipo: Text Palavras-chave: Solea solea; Nursery ground; Habitat suitability models; Crepidula fornicata; Invasive species; Bay of Biscay.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00000/10854/7579.pdf
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Habitat suitability for juvenile common sole (Solea solea, L.) in the Bay of Biscay (France): A quantitative description using indicators based on epibenthic fauna ArchiMer
Le Pape, Olivier; Baulier, Loic; Cloarec, Aurélie; Martin, Jocelyne; Le Loch, Francois; Desaunay, Yves.
This study describes the spatial distribution of young-of-the-year common sole based on beam trawl surveys conducted in late summer in the coastal and estuarine parts of the Bay of Biscay (France). Previous studies showed that habitat suitability for juvenile common sole varies according to physical factors and notably bathymetry and sediment structure. Nevertheless, the use of these descriptors alone to model habitat suitability led to considerable unexplained variability in juvenile common sole distribution. Hence, the epibenthic macro- and megafauna collected during beam trawl surveys was taken into account to improve models of habitat suitability for these juvenile flatfish. Ecotrophic guilds based on life traits (behaviour, mobility and feeding) were...
Tipo: Text Palavras-chave: Bay of Biscay; Ecotrophic guilds; Epibenthic fauna; Habitat suitability models; Nursery ground; Solea solea.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2402.pdf
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Relationships between benthic macrofauna and habitat suitability for juvenile common sole (Solea solea, L.) in the Vilaine estuary (Bay of Biscay, France) nursery ground ArchiMer
Nicolas, Delphine; Le Loch, Francois; Desaunay, Yves; Hamon, Dominique; Blanchet, Aline; Le Pape, Olivier.
Coastal and estuarine systems are among the most threatened by human activities which damage their ecological function and, in particular, their nursery role for many marine species. In this context, the protection of these vital ecosystems is a critical issue for the management of fisheries resources. To that aim, functional approaches have to be developed that make it possible to assess habitat suitability and quality. The common sole, Solea solea (L.) was selected as an indicator species to identify the features of coastal and estuarine nursery habitats in the Bay of Biscay (France). Previous studies have shown that young-of-the-year (YOY) sole are strongly dependent upon various abiotic factors, and especially bathymetry, sediment cover and the...
Tipo: Text Palavras-chave: Vilaine estuary; Functional indicators; Benthic macrofauna; Essential fish habitat; Nursery ground; Solea solea.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2609.pdf
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Size-effect, asymmetry, and small-scale spatial variation in otolith shape of juvenile sole in the Southern North Sea ArchiMer
Delerue-ricard, Sophie; Hanna, Stynen; Barbut, Léo; Morat, Fabien; Mahe, Kelig; Hablützel, Pascal I.; Hostens, Kris; Volckaert, Filip.
While otolith shape analysis can provide a valuable tool for discriminating between fish populations, factors which may influence otolith shape, such as the effect of size, directional asymmetry in growth, and local environmental conditions, are often unknown. Here, we analyzed differences in otolith shape across three size classes of age-0 common sole Solea solea L. from nursery grounds off the Belgian coast and in the Wadden Sea. Across size classes, form-factor decreased and roundness remained consistently high in both nursery grounds, while ellipticity increased in the Belgian nursery. Directional asymmetry between left and right otoliths measured by Fourier coefficients accounted for 0.96 and 7.2% of the variance when comparing otoliths overall, and...
Tipo: Text Palavras-chave: Early-life stages; Fourier coefficients; Nursery ground; Otolith shape; Small-scale spatial structure.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00453/56476/58866.pdf
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Sources of organic matter for flatfish juveniles in coastal and estuarine nursery grounds: A meta-analysis for the common sole (Solea solea) in contrasted systems of Western Europe ArchiMer
Le Pape, Olivier; Moderan, J.; Beaunee, G.; Riera, Pascal; Nicolas, Delphine; Savoye, N.; Harmelin-vivien, M.; Darnaude, A. M.; Brind'Amour, Anik; Le Bris, H.; Cabral, H.; Vinagre, C.; Pasquaud, S.; Franca, S.; Kostecki, Caroline.
Coastal and estuarine nursery grounds are essential habitats for sustaining flatfish stocks since only these shallow and productive areas provide the high food supply that allows maximizing juvenile growth and survival in most flatfish species. However, the main organic matter sources at the basis of benthic food webs might differ drastically between estuarine nursery grounds under strong freshwater influences, where food webs are mainly supported by continental organic matter, and coastal ecosystems under limited freshwater influence, where the local marine primary production is the main source of carbon for the benthos. To better understand the links between continental inputs to the coastal zone and stock maintenance in the highly prized common sole,...
Tipo: Text Palavras-chave: Nursery ground; Flatfish; Organic matter origin; Stable isotopes; Mixing model SIAR.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00118/22889/20796.pdf
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Spatial analysis of the trophic interactions between two juvenile fish species and their preys along a coastal-estuarine gradient ArchiMer
Kopp, Dorothee; Le Bris, Herve; Grimaud, Lucille; Nerot, Caroline; Brind'Amour, Anik.
Coastal and estuarine systems provide nursery grounds for many marine fish species. Their productivity has been correlated with terrigeneous inputs entering the coastal-estuarine benthic food web, thereby favouring the establishment of fish juveniles. Studies in these ecosystems often describe the nursery as a single large habitat without verifying nor considering the presence of contiguous habitats. Our study aimed at identifying different habitats based on macrozoobenthic communities and morpho-sedimentary characteristics and assessing the trophic interactions between fish juveniles and their benthic preys within these habitats. It included 43 sampling sites covering 5 habitats in which we described taxonomically and quantitatively the invertebrates and...
Tipo: Text Palavras-chave: Stable isotopes; Gut content; Food web; Nursery ground; Solea solea; Trisopterus luscus.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00151/26226/24327.pdf
Registros recuperados: 7
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