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Bohata, K. and Koppelmann, R. 2013. Chaetognatha of the Namibian Upwelling Region: Taxonomy, Distribution and Trophic Position. PLoS ONE, 8(1): e53839


Description:

Chaetognatha of the Namibian Upwelling Region: Taxonomy, Distribution and Trophic Position.

Summary / Notes:

In October 2010, the vertical distribution, biodiversity and maturity stages of Chaetognatha species were investigated at four stations located off Walvis Bay, Namibia. Seventeen species were detected and classified as pelagic, shallow-mesopelagic, deep-mesopelagic and bathypelagic species based upon the weighted mean depth derived from their average vertical distribution. High abundances of Chaetognatha were found in the upper 100 m at all stations of the Walvis Bay transect with a maximum value of 20837 ind. 1000 m−3 at the outer shelf station near the surface. The community was dominated by species of the Serratodentata group. Furthermore, the distribution of Chaetognatha did not seem to be influenced by low oxygen concentrations. Stable isotope ratios of carbon and nitrogen in Chaetognatha were determined for seven different areas located off northern Namibia.

Year: 2013

Type: Journal Article

URL: http://www.plosone.org/article/info:doi/10.1371/journal.pone.0053839


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