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The decline of the North Sea whelk (Buccinum undatum L.) between 1970 and 1990: a natural or a human-induced event?
ten Hallers-Tjabbes, C.C.; Everaarts, J.M.; Mensink, B.P.; Boon, J.P. (1996). The decline of the North Sea whelk (Buccinum undatum L.) between 1970 and 1990: a natural or a human-induced event?, in: Dworschak, P.C. et al. Influences of organisms on their Environment, the role of episodic events: Proceedings of the 29th European Marine Biology Symposium Vienna, 29 August-2 September 1994. Marine Ecology (Berlin), 17(1-3): pp. 333-343
In: Dworschak, P.C.; Stachowitsch, M.; Ott, J.A. (Ed.) (1996). Influences of organisms on their environment, the role of episodic events: Proceedings of the 29th European Marine Biology Symposium Vienna, 29 August-2 September 1994. European Marine Biology Symposia, 29. Marine Ecology (Berlin), 17(1-3). 568 pp., meer
In: European Marine Biology Symposia., meer
Beschikbaar in  Auteurs 
Documenttype: Congresbijdrage
Trefwoorden
    ANE, North Sea
    Depletion
    Man-induced effects
    Population functions > Mortality > Natural mortality
    Buccinum undatum Linnaeus, 1758 [WoRMS]
    Noordzee [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • ten Hallers-Tjabbes, C.C.
  • Everaarts, J.M.
  • Mensink, B.P.
  • Boon, J.P., meer
Abstract
    Recent surveys in the southern and central North Sea and the Dutch Wadden Sea revealed that the whelk Buccinum undatum L. can no longer be found in areas where whelks were abundant twenty or more years ago. The decline of whelk populations tends to coincide with areas of various, intense human activities, which may cause either pollution or physical damage. Potential causes for the decline of whelks from the southern North Sea and coastal areas are discussed and considered in view of North Sea ecology and protective policies for the North Sea.
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