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Eelgrass condition and turbidity in the Dutch Wadden Sea
Giesen, W.B.J.T.; van Katwijk, M.M.; den Hartog, C. (1990). Eelgrass condition and turbidity in the Dutch Wadden Sea. Aquat. Bot. 37(1): 71-85
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770, more
Peer reviewed article  

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Keywords
    Dredging; Ecosystem disturbance; Eutrophication; Horizontal distribution; Man-induced effects; Plant diseases; Sea grass; Turbidity; Zostera (Zostera) marina Linnaeus, 1753 [WoRMS]; ANE, Netherlands [Marine Regions]; ANE, Wadden Sea [Marine Regions]; Marine

Authors  Top 
  • Giesen, W.B.J.T.
  • van Katwijk, M.M.
  • den Hartog, C., more

Abstract
    Populations of eelgrass (Zostera marina L.) in the Dutch Wadden Sea have witnessed two major phases of decline this century. The first was the total disappearance of sublittoral beds during the wasting disease epidemic of the early 1930s, and their subsequent failure to recover. The second was the gradual disappearance of littoral eelgrass after the mid-1960s. It is argued here that both the lack of recovery of the sublittoral beds, and the disappearance of the littoral population, may have been effected, to a large extent, by changes in turbidity. The increasing turbidity can be linked with progressively increasing eutrophication as well as deposit extracting and dredging activities.

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