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Spatial and temporal variations of fish assemblages in a shallow Mediterranean soft-bottom area (Gulf of Fos, France) ArchiMer
Letourneur, Y; Darnaude, A; Salen-picard, C; Harmelin-vivien, M.
The fish assemblages of two shallow soft-bottom areas located in the Gulf of Fos (NW Mediterranean) were studied by means of 57 trawl surveys carried out on both seasonal and diel scales between 1983 and 1985. A total of 47 fish species was recorded, with a mean density and biomass of 650 individuals ha(-1) and 2.67 kg ha(-1), respectively. Most of the fluctuations observed were on the spatial scale. Strong differences in fish assemblages were observed between the two areas, with both higher species richness and biomass in the outer part of the gulf (La Gracieuse), while a higher density of individuals characterised its inner part (Bay of Carteau). This spatial pattern was due to a small number of species, such as the gobiids Gobius niger and Pomatoschitus...
Tipo: Text Palavras-chave: Ichtyofaune démersale; Gobiidae; Pleuronectiformes; Distribution spatiale; Variations temporelles; Demersal ichthyofauna; Gobiidae; Pleuronectiforms; Spatial distribution; Temporal variations.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43355/42858.pdf
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