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If you find something interesting or mysterious at the North Sea beach, BeachExplorer is the right website for you! We offer determination support and inform about all kinds of beached objects - natural or man-made. We collect all records and make them available for scientific coastal research.

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Furry kindergarten

23. May: A furry bunch of brown...

23. May:

A furry bunch of brown hairy caterpillars is a typical find in coastal saltmarshes at the end of may. These are the caterpillar nests of the thermophilic Ground lackey moth. Only about 20 years ago this specis has reached the Waddensea coast - possibly arriving from english salt marshes. The caterpillars spend their first weeks sociably on a commonly spun silk carpet. They feed on different herbs like Sea aster, Sea arrowgrass or Sea plantain. The older caterpillars live individually and tend to develop blueish markings. The adult moths fly in july and leave egg clusters on plant stalks, from which new caterpillars hatch in next spring.

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  • Porpoise sightings

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  • Seals with flipper tags

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  • Birds with rings

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  • Wooden drifters

    Picture informations: Wooden drifters

    Author(s) Holger Freund
    Licence owner ICBM Uni Oldenburg
    Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
    Licence cc-by-sa 3.0

  • Excursion dates
  • Educational material
  • Marine protection
Beach experiences - where and when?
To excursion dates

Guided beach excursions with explanations of biological facts and coastal protection topics are offered all along the coast. A list of places, providers and excursion dates can be found here:

School material
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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
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Here you find background informations about biology and protection of Wadden Sea and North Sea.