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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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| one publication added to basket [14314] |
Long-term changes in the macrobenthic invertebrate fauna of the Wadden Sea: are polychaetes about to take over ?
Reise, K. (1982). Long-term changes in the macrobenthic invertebrate fauna of the Wadden Sea: are polychaetes about to take over ? Neth. J. Sea Res. 16: 29-36
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, meer
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| Abstract |
Records from 1869 to 1981 on macrobenthic invertebrates of intertidal and subtidal soft-bottom habitats east of northern Sylt have been analyzed with respect to long-term phenomena. Out of the 101 common species studied, 28 have decreased, chiefly because oyster beds, Sabellaria reefs and a subtidal seagrass bed disappeared. Almost all losses occurred in the subtidal region. Increases are recorded for 30 species with a disproportionately high share of polychaetes (18). The total amount of long-term change involves 59% of all common species. A net loss of species occurred subtidally while tidal flats showed a net gain. Probably half of all changes are ultimately caused by human interference. A high proportion of polychaetes, which proportion increases over the years, is adapted to disturbed habitats. |
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