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Definitions (186)
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species inventory
the total species complement of a particular sample or deposit type
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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
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epilithic
growing on the surface of rock
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gonochoristic
having separate sexes (cf. hermaphroditic)
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zoea larva
a planktonic larval stage of crustaceans (prawns and crabs)
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aggregate
the collective term for sand, gravel and crushed rock.
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aggregate extraction
the removal of marine aggregate from the seabed by means of a dredger
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all-in cargo
a cargo taken aboard a dredger without alteration of the Gravel:sand ratio by screening
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amphipoda
a group of small crustaceans recognised by their laterally compressed bodies
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anchor dredge
a non-quantitative dredge used to sample organisms from the seabed
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