| Autor: |
Will Ritzrau, Wolfgang Queisser, Annette Scheltz, Gerhard Graf |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
The Northern North Atlantic ISBN: 9783642631368 |
| Popis: |
Benthic communities below the euphotic zone are strictly dependent on food supply through the water column, with only few exceptions at hot vents and cold seeps. The magnitude of this supply of organic carbon is mainly determined by temporal and spatial patterns of the export flux of pelagic primary production from the euphotic zone. In contrast to the northern Pacific, where a sequence of ecosystems exists along a latitudinal gradient, in the Greenland-Iceland-Norwegian Seas (GIN Seas) north ofIceland two very different pelagic environments are present: export regimes are separated meridionally and exposed to the same external forcing of solar radiation. At the eastern boundary of the GIN Seas the influence of the Gulf Stream results in an environment similar to that found at lower latitudes and is well documented for biological processes in the water column (v. Bodungen et al. 1995) and at the seafloor (Graf et al. 1995). Seasonal ice-cover together with hydrographic and nutrient conditions define the continental margin of East Greenland as a typical polar environment. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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