The biodiversity and biogeography of the free-living nematode genera
Abstract Samples taken at two stations in the northern and southern parts of the Scotia Arc, at depths of 277 and 307 m, respectively, were analysed for metazoan meiofauna with special attention to the nematodes. Identification to species level was performed for two closely related subdominant nemat...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.463.3874 http://www.vliz.be/imisdocs/publications/214184.pdf |
| Summary: | Abstract Samples taken at two stations in the northern and southern parts of the Scotia Arc, at depths of 277 and 307 m, respectively, were analysed for metazoan meiofauna with special attention to the nematodes. Identification to species level was performed for two closely related subdominant nematode genera dora and Desmodorella)in samples from the two Scotia Arc stations and in other available samples from adja cent areas (Magellan Region, Drake Passage, Weddell Sea). Seven Desmodora species and three species were found, of which, respectively five and two species are new to science. The Scotia Arc stations show relatively high densities and average diversity on meio fauna and nematode level compared to adjacent areas. The distribution patterns of the various and Desmodorella species suggest the Scotia Arc as a shallow bridge and a possible exchange route for meiofauna between the Antarctic and South America, especially since these species seem to be constrained by water depth. |
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