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Flashcards in modes or life Deck (8)
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1

benthonic

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

2

infaunal

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

3

epifaunal

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

4

vagrant

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

5

sessile

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

pelagic

organism lives in water column typically in the surface layers

7

planktonic

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

8

nektonic

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