Treatment plants
Plants where raw sewage is converted to harmless organic
substances, which are recycled as
fertilizer, etc.

Tivela
Pismo clam

Tolerance
Range within which an organism can endure changes in any of
the environmental factors, such as temperature, and survive.

Transition area
Where two zones come together and species from each zone
overlap

Taxonomy
The study of the naming of organisms.

Thallus
A plant having no roots, stems, or leaves. Algae.

Teredo
Common shipworm causing great damage to any wood
structure in the marine environment.

Tethys
Genus name for the common sea hare.

Test
A word used to designate the shell of the sea urchin.

Trepang
Dried sea cucumber used as food.

Tube feet
A part of the water vascular system found only in
echinoderms; used mainly for movement and catching food.

Thermocline
Layer of water with steep temperature gradient netween two
layers of water of different temperature.

Tresus
Gaper clam.

Tagelus spp.
Jackknife clam.

Tetraclita
Acorn barnacle, indicator organism for mid-tide zone.

Tovela
Pismo clam.