Seasonal migration of the swimming crab Macropipus holsatus in an estuarine area controlled by tidal streams
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, meer
Ook verschenen in:De Blok, J.W.; Dorrestein, R.; Nienhuis, P.H.; Postma, H.; Weber, R.E. (Ed.) (1973). 7th European Symposium on Marine Biology, Texel, 11-16 September 1972. European Marine Biology Symposia, 7. Netherlands Journal of Sea Research, 7. 505 pp., meer
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| Trefwoorden |
Behaviour > Migrations
Environments > Aquatic environment > Brackishwater environment
Periodicity > Seasonality
Polybius (Polybius) holsatus (Fabricius, 1798) [WoRMS]
ANE, Waddenzee [Marine Regions]
Marien/Kust |
| Auteurs | | Top |
- Venema, S.C.
- Creutzberg, F.
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| Abstract |
Macropipus holsatus, a common inhabitant of the North Sea, extends its geographic distribution into estuarine areas in spring, withdrawing again in late autumn. These migratory movements were studied during fishery surveys carried out in the years 1961 through 1964 which showed that the distribution within the Wadden Sea is most probably determined by salinity. The migration of the swimming crab out of the Wadden Sea is controlled by tidal transportation triggered by a decrease of salinity. The possible mechanism underlying seasonal inshore and offshore movements is still unknown. |
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