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Publication
Shrimp fauna (Crustacea: Decapoda) of the North Atlantic subtropical convergence
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Abstract(s)
Os camarões pelágicos foram amostrados, durante um cruzeiro abordo do N/I "Professor Siedlecki", entre Agosto e Setembro de 1984 na região de convergência subtropical do Atlântico Norte entre as latitudes de 43°-46° N (Oeste), e 37°-46° N (Este) e as longitudes de 14°-30° W. Foram efectuados arrastos desde a superfície até aos 1200m de profundidade. Identificaram-se vinte e cinco espécies (excluindo as pertencentes 21 família Sergestidae). Os resultados confirmam a existência de uma zona de transição, onde a fauna cosmopolita de camarão é dominante, e onde as espécies ocorrentes no Atlântico Norte e central se misturam. Uma fronteira entre estes dois tipos de fauna ocorre, aproximadamente, nos 42°N e é marcada pela mudança da diversidade de espécies a norte e a sul deste ponto.
ABSTRACT: Pelagic shrimps were sampled by R/V "Professor Siedlecki" cruise during August-September 1984 in the region of the North Atlantic subtropical convergence between latitudes 43"-46"N (western), 37C°-46°N (eastern) and at longitudes 14°-30°W. Hauls were made from the surface down to 1200 m. Twenty nine species were identified (excluding those of the family Sergestidae). The results confirmed the existence of a transition zone where omniocean shrimp fauna is dominant and where mixing of northern and central Atlantic pelagic species occurs. A boundary between these two faunas occurs at approximately 42°N and is marked by a change of species diversity northwards and southwards of this boundary.
ABSTRACT: Pelagic shrimps were sampled by R/V "Professor Siedlecki" cruise during August-September 1984 in the region of the North Atlantic subtropical convergence between latitudes 43"-46"N (western), 37C°-46°N (eastern) and at longitudes 14°-30°W. Hauls were made from the surface down to 1200 m. Twenty nine species were identified (excluding those of the family Sergestidae). The results confirmed the existence of a transition zone where omniocean shrimp fauna is dominant and where mixing of northern and central Atlantic pelagic species occurs. A boundary between these two faunas occurs at approximately 42°N and is marked by a change of species diversity northwards and southwards of this boundary.
Description
Keywords
Camarão Pelágico Atlântico Norte Pelagic Shrimps Atlantic Pelagic
Citation
"ARQUIPÉLAGO. Ciências Biológicas e Marinhas = Life and Marine Sciences". ISSN 0873-4704. Nº 14A (1996): 7-15.