Investigating soft shallow bottoms
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.