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Macrozooplankton diversity: how much do we really know? Naturalis
Pierrot-Bults, A.C.; Spoel, S. van der.
Pelagic species are widely distributed in a horizontal plane and have three-dimensional distributions, since the sea covers about 70% of the surface of the earth, and on average 4 km deep. For most macrozooplankton and micronekton groups there seems to be no great expectations of finding new taxa with the exception of gelatinous groups and of the deep sea, which is a relatively unknown especially in the benthopelagic zone close to the sea-bed. However, we do not know very much about variation, either morphological or genetical, within socalled species in different parts of their range. We think we are dealing with single very broadly distributed species, which, in reality, are species complexes consisting of several more or less cryptic species or...
Tipo: Article / Letter to the editor Palavras-chave: Pelagic macrozooplankton/micronekton diversity; Biogeographic patterns; Genetic variation; Morphological variation; Cryptic species; 42.79.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/220316
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Faunal changes and geographic crypticism indicate the occurrence of a biogeographic transition zone along the southern East Pacific Rise ArchiMer
Matabos, M.; Plouviez, S.; Hourdez, S.; Desbruyeres, Daniel; Legendre, P.; Waren, A.; Jollivet, D.; Thiebaut, E..
Aim Deep-sea hydrothermal vents have now been reported along all active mid-ocean ridges and back-arc basins, but the boundaries of biogeographic entities remain questionable owing to methodological issues. Here we examine biogeographic patterns of the vent fauna along the East Pacific Rise (EPR) and determine the relative roles of regional and local factors on the distribution of biodiversity associated with mussel beds along a poorly explored zone, the southern EPR (SEPR). Location East Pacific Rise. Methods A species list of macrobenthic invertebrates along the EPR was compiled from the literature and supplemented with data recovered during the French research cruise BIOSPEEDO carried out in 2004 along the SEPR. Biogeographic patterns were assessed by...
Tipo: Text Palavras-chave: Biogeographic patterns; Community structure; East Pacific Rise; Hydrothermal vents; Marine biodiversity; Molecular systematics; Mussel beds; Species richness.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00033/14395/11767.pdf
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