DRAFT POST:
Tools for observing the marine world:
Satellites circling the Earth.
Research ships.
Unaided human eye.
Binoculars.
Radar.
----------- water line -----------
Sonar.
Probes, CTD and other sensors.
Submersibles.
ROVs Remotely Operated Vehicles.
AUVs Autonomous Underwater Vehicles.
Position GPS locators/transmitters attached to marine animals.
Buoys.
Hooks and nets to catch fish/nekton.
Plankton net to catch plankton.
Microscope (optical).
Electron microscope.
