CHAPTER
3
HOW
CAN WE FIND OUT WHAT WATER BODIES CONTAIN?
Getting
information in situ
- Looking through
the water surface
- Diving, snorkelling
and SCUBA
- Television,
film and video recordings
- Diving bells
and submersibles
- Aerial photography,
satellite images, and remote sensing
Sampling
- Sampling the
water column
- Sampling sediments
and the organisms they contain
- Sampling organisms
that live on "solid" substrata
- Sorting and
processing samples