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22. Jan:Unusually patterend shells with zigzag lines or big dark blotches can recently be found on northern Waddensea beaches: the Manila clam. Around 2012 this bivalve from the Chinese Sea which is distributed worldwide by aquaculture has invaded the Waddensea. First adult specimen were found in 2016 in the vicinity of the Halligen in Northern Frisia. Amrum and Föhr followed in 2018, Sylt in 2021 and meanwhile Rømø in the north and the Elbe estuary in the south have been reached. What comes next? Alle records are very welcome. The species exhibits the fine line structure on the shell outside that is typical for all carpet shells. It is more stout and rounded than the indigenous Pullet carpet shell. The coloration is noticeably vaiable. Good luck with your search!
Latest records
Object | Species | Reporting user | Square | |
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25.08.2015 | Moon snail drill hole | User expired | Hörnum |
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25.08.2015 | Blunt gaper | User expired | Hörnum |
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25.08.2015 | Shore crab | User expired | Hörnum |
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25.08.2015 | European flat oyster | User expired | Hörnum |
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25.08.2015 | Sandhopper | User expired | Hörnum |
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25.08.2015 | Knotted Wrack, Rockweed | User expired | Hörnum |
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25.08.2015 | Bladder Wrack | User expired | Hörnum |
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25.08.2015 | Pumice rock | User expired | Hörnum |
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School material
More...Free education material on Wadden Sea and North Sea is being developed. Already available are work sheets and teacher's material for our „Strandforscher”-program for primary schools (in german only).
Marine protection
More...Here you find background informations about biology and protection of Wadden Sea and North Sea.