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The effectiveness of the continuous underway fish egg sampler compared with standard vertical plankton hauls for sampling the eggs of demersal species in the southern North Sea ArchiMer
Lelievre, Stephanie; Vaz, Sandrine; Fox, Christopher.
To date, the continuous underway fish egg sampler (CUFES) has been used primarily to map the spawning areas of pelagic fish in upwelling regions. To assess its utility in mapping the spawning grounds of demersal species, species composition and densities of eggs collected by CUFES were compared with results obtained from ring-net samples (VET: vertical egg trawl) from the southern North Sea over three annual cruises conducted in January/February. CUFES collected slightly fewer eggs per unit volume of water filtered when compared with vertically integrated samples but maps of egg distributions from both devices showed broadly similar patterns. Geostatistical analyses revealed that small-scale variability was greater with CUFES than with VET. CUFES may thus...
Tipo: Text Palavras-chave: Continuous underway fish egg sampler; CUFES; Fish eggs; Generalized linear model; Spatial distribution; Vertical egg trawl.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00065/17663/15193.pdf
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