Benthic isopods (Crustacea,Malacostraca) from the Ross Sea,Antarctica: species checklist and their zoogeography in the Southern Ocean |
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Authors: | Madhumita Choudhury Angelika Brandt |
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Institution: | (1) Biozentrum Grindel, Zoological Museum, University of Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany |
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Abstract: | In this study isopod species of the Ross Sea were investigated. Literature until May 2008 was checked to provide an overview
of all known and described species in the Ross Sea. This species checklist was then enlarged through material of the 19th
Italica expedition in 2004. During this expedition for the first time a small mesh net (500 μm) was used. Nine thousand four hundred
and eighty one isopod specimens were collected during this expedition. Through this material the number of isopod species
in the Ross Sea increased from 42 to 117 species, which belong to 20 families and 49 genera. Fifty-six percentage of the isopods
species collected during the Italica expedition are new to science. The zoogeography of the 117 species was investigated. A non-transformed binary presence-absence
data matrix was constructed using the Bray–Curtis coefficient. The results were displayed in a cluster analysis and by nonmetric
multidimensional scaling (MDS). This paper gives a first insight into the occurrence and distribution of the isopod species
of the Ross Sea. |
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Keywords: | Species checklist Isopoda Ross Sea Southern Ocean Antarctica Zoogeography |
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