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Cherel, Yves; Romanov, Evgeny V.; Annasawmy, Pavanee; Thibault, Delphine; Ménard, Frédéric. |
Taxonomic composition, abundance and biological features of micronektonic fish were investigated using pelagic trawls conducted near and over the summits of three seamounts located in the western Indian Ocean (La Pérouse, MAD-Ridge and Walters Shoal). Mesopelagic fish from three families accounted for 80% by number of the total catch (5714 specimens, 121 taxa), namely myctophids (59%), gonostomatids (12%) and sternoptychids (9%). Whereas the gonostomatid Sigmops elongatus was the most abundant species around La Pérouse seamount, myctophids were the most diverse and dominant group by number in all three studied areas. Most myctophids were high-oceanic species, which included the numerically dominant Benthosema suborbitale, Ceratoscopelus warmingii, Diaphus... |
Tipo: Text |
Palavras-chave: Ceratoscopelus warmingii; Diaphus suborbitalis; Sigmops elongatus; Lanternfish; Tropical waters. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00614/72658/71904.pdf |
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Le Joncour, Anna; Blanchard, Fabian; Tagliarolo, Morgana. |
Estuarine and coastal areas are often considered as hotspots due to their high diversity and ecological importance. However, communities living on those areas are often submitted to fishery and climate change pressures causing modifications on fish assemblages. French Guiana’s coastal shelf is characterised by warm waters with high turbidity and low salinity caused by the large river discharges from the Amazon and nearby estuaries. The high productivity of these areas supports fisheries and aquaculture activities. However, the structure and dynamics of coastal fish populations in French Guiana have seldom been studied. The aim of this study was to understand the effect of environmental conditions, as well as the influence of the coast and nearby estuaries... |
Tipo: Text |
Palavras-chave: French Guiana; Coastal community; Estuary; Diversity; Tropical waters; Fisheries management. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00607/71929/73534.pdf |
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