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Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Muller) and Bathyporeia sp
Coosen, J.; Seys, J.; Meire, P.M.; Craeymeersch, J.A. (1994). Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Muller) and Bathyporeia sp, in: Nienhuis, P.H. et al. (Ed.) The Oosterschelde Estuary (The Netherlands): a case-study of a changing ecosystem. Hydrobiologia, 97: pp. 235-249
In: Nienhuis, P.H.; Smaal, A.C. (Ed.) (1994). The Oosterschelde Estuary (The Netherlands): a case-study of a changing ecosystem. Reprinted from Hydrobiologia, vols 282/283. Hydrobiologia, 97. Kluwer Academic: Dordrecht. 597 pp., more
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158, more
Peer reviewed article  

Also published as
  • Coosen, J.; Seys, J.; Meire, P.M.; Craeymeersch, J.A. (1994). Effect of sedimentological and hydrodynamical changes in the intertidal areas of the Oosterschelde estuary (SW Netherlands) on distribution, density and biomass of five common macrobenthic species: Spio martinensis (Mesnil), Hydrobia ulvae (Pennant), Arenicola marina (L.), Scoloplos armiger (Muller) and Bathyporeia sp. Hydrobiologia 282-283: 235-249. hdl.handle.net/10.1007/BF00024633, more

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Keywords
    Abundance; Growth; Patterns; Patterns; Population dynamics; Tidal flats; Arenicola marina (Linnaeus, 1758) [WoRMS]; Bathyporeia Lindström, 1855 [WoRMS]; Hydrobia ulvae (Pennant, 1777) [WoRMS]; Scoloplos armiger (Müller, 1776) [WoRMS]; Spio martinensis Mesnil, 1896 [WoRMS]; ANE, Netherlands, Oosterschelde [Marine Regions]; Marine; Brackish water

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Abstract
    In order to evaluate the impact of the construction of the storm-surge barrier and secondary dams on macrobenthos of the tidal flats in the Oosterschelde (SW Netherlands), changes in distribution, density and biomass of five common species (Spio martinensis, Hydrobia ulvae, Arenicola marina, Scoloplos armiger and Bathyporeia sp) were analysed. Data on macrobenthos were collected from 1979 to 1989 on five different tidal flats. Changes in sediment texture and hydrodynamic factors during the construction and after the completion of the coastal engineering project were taken into account. Three severe winters in a row caused more disturbance in the population of the main predator of S. armiger than did the hydrodynamical changes. A temporary prolongation of the emersion time (in 1986 and 1987) caused a temporary decrease in juvenile A. marina. But afterwards they still occupy the same 'nursery grounds'. Increased wave action on the edges of the flats probably created new niches for Bathyporeia sp. and Spio martinensis, replacing other benthic species. It is not yet clear what has caused the decline of H. ulvae in many places in the Oosterschelde estuary. Parasitic infestation is one of the possibilities.

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