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Expected biological effects of long-term changes in temperatures on benthic ecosystems in coastal waters around the Netherlands
de Vooys, C.G.N. (1990). Expected biological effects of long-term changes in temperatures on benthic ecosystems in coastal waters around the Netherlands, in: Beukema, J.J. et al. (Ed.) Expected effects of climatic change on marine coastal ecosystems. Developments in Hydrobiology, 57: pp. 77-82
In: Beukema, J.J. et al. (Ed.) (1990). Expected effects of climatic change on marine coastal ecosystems. Developments in Hydrobiology, 57. Kluwer Academic: Dordrecht. ISBN 0-7923-0697-X. 221 pp., more
In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, more

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    VLIZ: Proceedings [10695]

Keyword
    Marine

Author  Top 
  • de Vooys, C.G.N.

Abstract
    A comparison between the course of air temperatures during the last century (either on a global scale or at De Bilt) with temperatures of Dutch coastal waters shows that the temperatures in Dutch coastal waters are not only determined by air temperatures; hydrographical alternations on the North Atlantic Ocean will have had a clear influence too. A comparison of the macrobenthic fauna of the Wadden Sea with those of the Seine estuary (mean temperatures 2°C higher) and the Gironde estuary (mean temperatures 4°C higher) leads to the conclusion that at a rise in temperature of 2°C an enrichment of ~20% of the number of species would occur, whereas at a rise of 4°C an enrichment of ~30% might be expected. In the warmest period of the Eemien (Pleistocene) the annual mean water temperature in the Eemien Sea was about 14-15°C, compared with ~10°C for the present Dutch Wadden Sea. All species of molluscs known from the Eemien still occur in Europe, and a good resemblance exists between the molluscs species of the Dutch Eemien and the recent ones of Arcachon Bay. This supports the above conclusion.

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