Mikroplastik i havmiljøet - Metode til kvantificering af mikroplastik i havvand, blåmusling og fisk
This study examines the methods used for identifying microplastic in marine biota. The methods were modified and used in a pilot-study describing the occurrence of microplastic in seawater and biota on two coastal locations near Copenhagen. Coastal seawater, blue mussles ( Mytilus edulis ), eel pout...
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| Format: | Conference Object |
| Language: | English |
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2015
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| Subjects: | |
| Online Access: | https://pure.au.dk/portal/da/publications/mikroplastik-i-havmiljoeet--metode-til-kvantificering-af-mikroplastik-i-havvand-blaamusling-og-fisk(94c01479-289a-470f-976c-07915646bc06).html http://havforsk2015.geus.dk/index.shtml |
| Summary: | This study examines the methods used for identifying microplastic in marine biota. The methods were modified and used in a pilot-study describing the occurrence of microplastic in seawater and biota on two coastal locations near Copenhagen. Coastal seawater, blue mussles ( Mytilus edulis ), eel pouts ( Zoarces viviparous ), sculpin sp.( Cottidae sp.) and Atlantic cod ( Gadus morhua ), were examined for microplastic in the organism. For improving detection of microplastic, organic matter was removed using an alkaline sodium hypochlorite solution (NaClO). After removal of organic matter, samples were filtered and examined under microscope at 40x. For blue mussel the whole organism was analyzed, and stomach and gut were analyzed on fish. The organisms were pooled by species. It is shown that microplastic is present in both coastal seawater and biota. Chemical digestion using base seems to be the best method to remove organic material and make identification of microplasticpossible. This study discusses the need for improving methods to identify and characterize microplastic. Præsenteret som foredrag på det 18. danske havforskermøde. |
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