soft bottoms

Simple equipment

Taking samples with a drop-trap

Investigating soft shallow bottoms


Simple surveys

When starting a survey of shallow soft bottoms the first thing to do is to try describe its appearance and topography in some way. It is possible to draw a map or a picture of the bay, even describing the surroundings. If you want to follow the changes and development through the different seasons it is possible to measure the waters temperature and salinity, even comparing with variations in atmospheric temperature. You can collect mussel and snail shells for your own collection, press algae and collect organisms for your own aquariums. Those organisms that live on the bottom and can move are known collectively as mobile epifauna.


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© Aquascope 2000   Tjärnö Marine Biological Laboratory, Strömstad, Sweden
Bo Johannesson | Martin Larsvik | Lars-Ove Loo | Helena Samuelsson