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| Weikert, H; Koppelmann, R. |
| Full-depth profiles of zooplankton numerical abundance and major taxa composition are presented with special attention to the dominant copepod fauna, for directly comparable data sets from sites to a depth of 4 300 m in the Levantine and Red Seas, which are also compared with the deep mid-latitude NE Atlantic. Copepods showed highest proportions of calanoids, cyclopoids sensu lato and harpacticoids in the 333 mum net subsurface samples from the Atlantic. Among the calanoids as the predominant group, there was a distinctly disproportionate, extended and depth-related sequence of zonal dominance by one single species of a family each at mesopelagic and bathypelagic depths in the Levantine Sea and the Red Sea. The mass occurrence of dormant Eucalanus monachus... |
| Tipo: Text |
Palavras-chave: DEEP-LIVING ZOOPLANKTON; VERTICAL DISTRIBUTION PATTERNS; NE ATLANTIC; EASTERN MEDITERRANEAN; RED SEA. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00099/21044/18670.pdf |
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| Weikert, H; Koppelmann, R. |
| Differences in the vertical distribution of bathypelagic zooplankton in the open northeast Atlantic and in the partially landlocked Levantine and Red Seas were re-evaluated to provide an interoceanic comparison. The decrease in zooplankton abundance with depth was most pronounced in the Red Sea and least evident in the northeast Atlantic. The Levantine Sea showed intermediate characteristics. The data plotted on a semi-log scale against a linear change in depth revealed a reduced rate of decrease in the zooplankton concentration with depth in the deep bathypelagic zone of the northeast Atlantic and the Levantine Sea. This pattern was also found for vertical profiles of micronekton abundance in the southeast Pacific. In the Red Sea, the decrease was... |
| Tipo: Text |
Palavras-chave: Bathypelagic zooplankton; Interoceanic comparison; Vertical distribution; Vertical flux. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00096/20733/18370.pdf |
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