The University of Southampton
University of Southampton Institutional Repository

Surveying black bream, Spondyliosoma cantharus (L.), nesting sites using sidescan sonar

Surveying black bream, Spondyliosoma cantharus (L.), nesting sites using sidescan sonar
Surveying black bream, Spondyliosoma cantharus (L.), nesting sites using sidescan sonar
Black bream, Spondyliosoma cantharus (L.), are summer visitors to the south and west coasts of the UK, overwintering in deeper waters and migrating inshore to breed from April to June. Bream are demersal spawners, with the eggs laid in a nest excavated by the male as it creates a depression in a sandy gravel substrate. To build their nests, male bream expose bedrock and gravel by using their tails to remove the surface layer.

The present study, using sidescan sonar and SCUBA diving, extends the known occurrence of extensive nesting grounds off the West Sussex coast to the Isle of Wight and Dorset. The nests are typically circular craters 1-2m wide, and 5-30cm in depth, which can clearly be seen using sidescan sonar as groups of circular depressions. Several thousands of eggs (1-2mm) are attached to bare rock in the centre of these structures. All the eggs hatch by July.

The species is valuable and particularly vulnerable to exploitation by both sport and commercial fishermen during its nesting season. With no minimum landing size and no prescription for Total Allowable Catch or the International Council for the Exploration of the Sea (ICES) stock assessment, they are suitable for protection under spatial planning measures, such as through the use of marine protected areas (MPAs).
black bream, Spondyliosoma cantharus, scuba diving, sidescan sonar, spawning, fisheries management, English Channel
1756-0543
183-188
Collins, K.J.
9c436eb8-add5-460e-9900-5d1d128dc63d
Mallinson, J.J.
1b52541f-d3fa-44de-854d-dddb611fa02e
Collins, K.J.
9c436eb8-add5-460e-9900-5d1d128dc63d
Mallinson, J.J.
1b52541f-d3fa-44de-854d-dddb611fa02e

Collins, K.J. and Mallinson, J.J. (2012) Surveying black bream, Spondyliosoma cantharus (L.), nesting sites using sidescan sonar. Underwater Technology, 30 (4), 183-188. (doi:10.3723/ut.30.183).

Record type: Article

Abstract

Black bream, Spondyliosoma cantharus (L.), are summer visitors to the south and west coasts of the UK, overwintering in deeper waters and migrating inshore to breed from April to June. Bream are demersal spawners, with the eggs laid in a nest excavated by the male as it creates a depression in a sandy gravel substrate. To build their nests, male bream expose bedrock and gravel by using their tails to remove the surface layer.

The present study, using sidescan sonar and SCUBA diving, extends the known occurrence of extensive nesting grounds off the West Sussex coast to the Isle of Wight and Dorset. The nests are typically circular craters 1-2m wide, and 5-30cm in depth, which can clearly be seen using sidescan sonar as groups of circular depressions. Several thousands of eggs (1-2mm) are attached to bare rock in the centre of these structures. All the eggs hatch by July.

The species is valuable and particularly vulnerable to exploitation by both sport and commercial fishermen during its nesting season. With no minimum landing size and no prescription for Total Allowable Catch or the International Council for the Exploration of the Sea (ICES) stock assessment, they are suitable for protection under spatial planning measures, such as through the use of marine protected areas (MPAs).

Full text not available from this repository.

More information

Published date: 2012
Keywords: black bream, Spondyliosoma cantharus, scuba diving, sidescan sonar, spawning, fisheries management, English Channel
Organisations: Ocean Biochemistry & Ecosystems

Identifiers

Local EPrints ID: 341506
URI: https://eprints.soton.ac.uk/id/eprint/341506
ISSN: 1756-0543
PURE UUID: fb31a35f-be57-424c-aa81-2db1665c0786

Catalogue record

Date deposited: 25 Jul 2012 09:43
Last modified: 18 Jul 2017 05:35

Export record

Altmetrics

Contributors

Author: K.J. Collins
Author: J.J. Mallinson

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×