genustraithandbook.org.uk

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Definitions (186)

1

22   18

species inventory


the total species complement of a particular sample or deposit type
Source: genustraithandbook.org.uk

2

4   5

epitoke


the reproductive part of the body of polychaetes that contains the gametes and which swarm into the water column at a single episodic event at the end of the life of the adult
Source: genustraithandbook.org.uk

3

1   1

epilithic


growing on the surface of rock
Source: genustraithandbook.org.uk

4

1   2

gonochoristic


having separate sexes (cf. hermaphroditic)
Source: genustraithandbook.org.uk

5

1   1

zoea larva


a planktonic larval stage of crustaceans (prawns and crabs)
Source: genustraithandbook.org.uk

6

0   0

aggregate


the collective term for sand, gravel and crushed rock.
Source: genustraithandbook.org.uk

7

0   0

aggregate extraction


the removal of marine aggregate from the seabed by means of a dredger
Source: genustraithandbook.org.uk

8

0   0

all-in cargo


a cargo taken aboard a dredger without alteration of the Gravel:sand ratio by screening
Source: genustraithandbook.org.uk

9

0   0

amphipoda


a group of small crustaceans recognised by their laterally compressed bodies
Source: genustraithandbook.org.uk

10

0   0

anchor dredge


a non-quantitative dredge used to sample organisms from the seabed
Source: genustraithandbook.org.uk


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