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Size variation of 0-group plaice: Are earlier influences on growth potential a contributing factor?

Size variation of 0-group plaice: Are earlier influences on growth potential a contributing factor?
Size variation of 0-group plaice: Are earlier influences on growth potential a contributing factor?
Over a decade of sampling has shown that there are consistent differences in the sizes of 0-group plaice by late summer comparing 21 nursery sites on the Scottish west coast. However, when young fish were collected from two sites which produce particularly small and large fish and reared using a common garden design, growth rates between fish from the two sites were indistinguishable. Either there is little selection for fast or slow growth up to a few weeks post-settlement, or such effects do not persist sufficiently strongly to influence later growth. There were also no significant correlations between the time-series of fish size comparing sites, although within some sites there was evidence of inter-annual density-dependent effects. Any influences of offshore regional scale factors, such as sea temperature or pelagic primary productivity on growth thus appear to be heavily modified by local conditions on the nursery grounds. The field observations combined with the experimental results lead us to conclude that the size 0-group plaice attain in late summer is mainly controlled by post-settlement habitat quality.
1385-1101
59-66
Fox, Clive J.
0287bea7-1461-4fed-8f6f-23d7cfeb45ee
Targett, Timothy E.
97f9fce4-ce29-4156-b466-0df128381a55
Ciotti, Benjamin J.
034551e4-d770-4cd2-80cc-b95c677938d2
de Kroon, Kasper
e7a5577f-bd1d-40be-84bc-399d8c160b6a
Hortsmeyer, Lena
1a899600-a857-4a76-a66d-e55db7f58c96
Burrows, Michael T.
a38026ff-26eb-4a99-8cdd-34bf6b9b479d
Fox, Clive J.
0287bea7-1461-4fed-8f6f-23d7cfeb45ee
Targett, Timothy E.
97f9fce4-ce29-4156-b466-0df128381a55
Ciotti, Benjamin J.
034551e4-d770-4cd2-80cc-b95c677938d2
de Kroon, Kasper
e7a5577f-bd1d-40be-84bc-399d8c160b6a
Hortsmeyer, Lena
1a899600-a857-4a76-a66d-e55db7f58c96
Burrows, Michael T.
a38026ff-26eb-4a99-8cdd-34bf6b9b479d

Fox, Clive J., Targett, Timothy E., Ciotti, Benjamin J., de Kroon, Kasper, Hortsmeyer, Lena and Burrows, Michael T. (2014) Size variation of 0-group plaice: Are earlier influences on growth potential a contributing factor? Journal of Sea Research, 88, 59-66. (doi:10.1016/j.seares.2013.12.015).

Record type: Article

Abstract

Over a decade of sampling has shown that there are consistent differences in the sizes of 0-group plaice by late summer comparing 21 nursery sites on the Scottish west coast. However, when young fish were collected from two sites which produce particularly small and large fish and reared using a common garden design, growth rates between fish from the two sites were indistinguishable. Either there is little selection for fast or slow growth up to a few weeks post-settlement, or such effects do not persist sufficiently strongly to influence later growth. There were also no significant correlations between the time-series of fish size comparing sites, although within some sites there was evidence of inter-annual density-dependent effects. Any influences of offshore regional scale factors, such as sea temperature or pelagic primary productivity on growth thus appear to be heavily modified by local conditions on the nursery grounds. The field observations combined with the experimental results lead us to conclude that the size 0-group plaice attain in late summer is mainly controlled by post-settlement habitat quality.

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More information

Published date: April 2014
Organisations: Ocean Biochemistry & Ecosystems

Identifiers

Local EPrints ID: 361880
URI: http://eprints.soton.ac.uk/id/eprint/361880
ISSN: 1385-1101
PURE UUID: be90a928-ff63-4a26-ba52-6b851ae50e7a

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Date deposited: 05 Feb 2014 09:36
Last modified: 14 Mar 2024 15:57

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Contributors

Author: Clive J. Fox
Author: Timothy E. Targett
Author: Benjamin J. Ciotti
Author: Kasper de Kroon
Author: Lena Hortsmeyer
Author: Michael T. Burrows

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