Benthic communities associated with a heavily fished scallop ground in the English channel

M. J. Kaiser, P. J. Armstrong, P. J. Dare, R. P. Flatt

Research output: Contribution to journalArticle

Abstract

A survey of benthic communities found in a heavily fished scallop ground was undertaken in July 1993. Two main faunal assemblages were identified from samples obtained with fine-meshed scallop dredges, which were grouped either in gravelly sand sediments or sandy sediment, which was generally furthest offshore in deeper water A third assemblage was found in either sandy or gravelly muddy sand sediments. The highest abundance of small and large size-classes of scallops were associated with the assemblage containing the greatest number of species and individuals in sandy sediments. This assemblage had the greatest biomass of emergent fauna such as hydroids and Alcyonium digitatum. Data acquired from a RoxAnnTM acoustic signal processor were able to differentiate between the substratum or biotopes associated with the greatest abundance of scallops. This may provide a useful tool for refining surveys of commercial stocks or mapping suitable habitats.

Original languageEnglish
Pages (from-to)1045-1059
Number of pages15
JournalJournal of the Marine Biological Association of the United Kingdom
Volume78
Issue number4
DOIs
Publication statusPublished - Nov 1998

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English Channel
scallops
benthos
sediments
sediment
sand
refining
biotopes
biotope
dredger
acoustics
deep water
fauna
biomass
habitat
habitats
water
sampling

ASJC Scopus subject areas

  • Aquatic Science

Cite this

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abstract = "A survey of benthic communities found in a heavily fished scallop ground was undertaken in July 1993. Two main faunal assemblages were identified from samples obtained with fine-meshed scallop dredges, which were grouped either in gravelly sand sediments or sandy sediment, which was generally furthest offshore in deeper water A third assemblage was found in either sandy or gravelly muddy sand sediments. The highest abundance of small and large size-classes of scallops were associated with the assemblage containing the greatest number of species and individuals in sandy sediments. This assemblage had the greatest biomass of emergent fauna such as hydroids and Alcyonium digitatum. Data acquired from a RoxAnnTM acoustic signal processor were able to differentiate between the substratum or biotopes associated with the greatest abundance of scallops. This may provide a useful tool for refining surveys of commercial stocks or mapping suitable habitats.",
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Benthic communities associated with a heavily fished scallop ground in the English channel. / Kaiser, M. J.; Armstrong, P. J.; Dare, P. J.; Flatt, R. P.

In: Journal of the Marine Biological Association of the United Kingdom, Vol. 78, No. 4, 11.1998, p. 1045-1059.

Research output: Contribution to journalArticle

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