Sublittoral and bathyal Harpacticoida (Crustacea: Copepoda) of the Magellan region

Two expeditions, undertaken in 1994 and 1996, provided quantitatively sampled material of sublittoral and bathyal meiobenthos from the Paso Ancho of the Straits of Magellan, the Beagle Channel, and the Patagonian continental slope (Chile). To investigate whether these distinct geographic areas might also be characterised by different harpacticoid assemblages, qualitative and quantitative analyses of Copepoda Harpacticoida were carried out. At supraspecific level 25 harpacticoid families were found, as well as several species that could not yet be assigned to any major harpacticoid taxon. Due to the high amount of collected Harpacticoida, detailed investigations at species level had to be restricted to six taxa, namely the Ancorabolidae, Argestidae, Cletodidae, Diosaccinae, Paramesochridae, and Paranannopinae. The corresponding specimens were assigned to 122 species in 52 genera. More than 80% of them are new to science. Qualitative comparisons of both species composition and species distribution allow the three areas to be distinguished in terms of species richness. However, statistical analyses confirm these results only partly. Similarity analyses applying non-metrical multidimensional scaling, as well as diversity analyses using the rarefaction method, suggest that the observed differences in distribution and diversity patterns are due to small-scale, local conditions, which may overlay possible large-scale ones.

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Cite this as

George, Kai Horst (2005). Dataset: Sublittoral and bathyal Harpacticoida (Crustacea: Copepoda) of the Magellan region. https://doi.org/10.1594/PANGAEA.832411

DOI retrieved: 2005

Additional Info

Field Value
Imported on November 29, 2024
Last update November 29, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.832411
Author George, Kai Horst
Given Name Kai Horst
Family Name George
Source Creation 2005
Publication Year 2005
Resource Type application/zip - filename: George_2005
Subject Areas
Name: Biosphere

Name: Oceans

Related Identifiers
Title: Sublittoral and bathyal Harpacticoida (Crustacea, Copepoda) of the Magellan region. Composition, distribution and species diversity of selected major taxa
Identifier: https://doi.org/10.3989/scimar.2005.69s2147
Type: DOI
Relation: IsSupplementTo
Year: 2005
Source: Arntz, Wolf E, Lovrich, Gustavo A & Thatje, Sven (eds.) The Magellan-Antarctic connection: links and frontiers at southern high latitudes
Authors: George Kai Horst .