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Flashcards in modes or life Deck (8)
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1
Q

benthonic

A

organism lives on or in the sediment substrate of the sea floor

2
Q

infaunal

A

organism lives in the sediment, usually in a burrow. many will filter feed. e.g. a bivalve clam

3
Q

epifaunal

A

organism liven on the sediment substrate e.g. bivalve oyster

4
Q

vagrant

A

organism moves around on the sea floor and is usually a scavenger or a predator. e.g. echinoid

5
Q

sessile

A

organism does not move around on the sea sediment substrate. some are attached to the sea floor others lie on the sea floor. most will filter feed. e.g. bivalve mussel

6
Q

pelagic

A

organism lives in water column typically in the surface layers

7
Q

planktonic

A

floats in the water column to wherever the current will take he organism. usually a filter feeder. e.g. graptolite

8
Q

nektonic

A

actively swims in the water column. most are scavengers or predators. e.g. ammonite