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sieralgen jacht | 19 juli 2021 |
Sieralgen zijn een groep die erg gevoelig is voor omgevingsfactoren. Zo zijn in Nederland inmiddels veel soorten uitgestorven die een eeuw geleden nog in voedselarme meren voorkwamen. De sieralgen geven daardoor een goed idee van de status van de arctische meren die we bemoonsteren. | |
De oogst. | |
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