Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters
Recent studies have shown differences in life history features of long rough dab Hippoglossoides platessoides among populations of the North Atlantic. Here, length frequency distributions from commercial catches and age information from otolith readings are used to compare long rough dab from the No...
Published in: | Marine Ecology Progress Series |
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1997
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Online Access: | https://strathprints.strath.ac.uk/51061/ https://doi.org/10.3354/meps158303 |
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ftustrathclyde:oai:strathprints.strath.ac.uk:51061 2024-04-28T08:30:48+00:00 Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters Stratoudakis, Yorgos Fryer, Robert J. Pierce, Graham J. Cook, Robin M. 1997-11-17 https://strathprints.strath.ac.uk/51061/ https://doi.org/10.3354/meps158303 unknown Stratoudakis, Yorgos and Fryer, Robert J. and Pierce, Graham J. and Cook, Robin M. <https://strathprints.strath.ac.uk/view/author/824074.html> (1997 <https://strathprints.strath.ac.uk/view/year/1997.html>) Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters. Marine Ecology Progress Series <https://strathprints.strath.ac.uk/view/publications/Marine_Ecology_Progress_Series.html>, 158. pp. 303-306. ISSN 0171-8630 Probabilities. Mathematical statistics Aquaculture. Fisheries. Angling Article PeerReviewed 1997 ftustrathclyde https://doi.org/10.3354/meps158303 2024-04-10T01:02:53Z Recent studies have shown differences in life history features of long rough dab Hippoglossoides platessoides among populations of the North Atlantic. Here, length frequency distributions from commercial catches and age information from otolith readings are used to compare long rough dab from the North Sea and the West of Scotland. Catch data from the Scottish demersal fisheries show differences in the length distribution of long rough dab between the 2 areas, with large fish (>20 cm) more prevalent in the North Sea. The maximum length of long rough dab observed in commercial catches is 8 cm greater in the North Sea, where otolith readings indicate that the species has a greater longevity. Growth models suggest that long rough dab of age 3+ are significantly smaller in the West of Scotland. Potential explanations for the observed contrasts in hie history features include spatial differences in temperature-related metabolic costs, food availability, sex ratios (males tend to be smaller), or age-specific loss rates (emigration or mortality). Of these, we conclude that the hypothesis involving temperature-dependent metabolic costs is the least likely explanation. Article in Journal/Newspaper North Atlantic University of Strathclyde Glasgow: Strathprints Marine Ecology Progress Series 158 303 306 |
institution |
Open Polar |
collection |
University of Strathclyde Glasgow: Strathprints |
op_collection_id |
ftustrathclyde |
language |
unknown |
topic |
Probabilities. Mathematical statistics Aquaculture. Fisheries. Angling |
spellingShingle |
Probabilities. Mathematical statistics Aquaculture. Fisheries. Angling Stratoudakis, Yorgos Fryer, Robert J. Pierce, Graham J. Cook, Robin M. Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters |
topic_facet |
Probabilities. Mathematical statistics Aquaculture. Fisheries. Angling |
description |
Recent studies have shown differences in life history features of long rough dab Hippoglossoides platessoides among populations of the North Atlantic. Here, length frequency distributions from commercial catches and age information from otolith readings are used to compare long rough dab from the North Sea and the West of Scotland. Catch data from the Scottish demersal fisheries show differences in the length distribution of long rough dab between the 2 areas, with large fish (>20 cm) more prevalent in the North Sea. The maximum length of long rough dab observed in commercial catches is 8 cm greater in the North Sea, where otolith readings indicate that the species has a greater longevity. Growth models suggest that long rough dab of age 3+ are significantly smaller in the West of Scotland. Potential explanations for the observed contrasts in hie history features include spatial differences in temperature-related metabolic costs, food availability, sex ratios (males tend to be smaller), or age-specific loss rates (emigration or mortality). Of these, we conclude that the hypothesis involving temperature-dependent metabolic costs is the least likely explanation. |
format |
Article in Journal/Newspaper |
author |
Stratoudakis, Yorgos Fryer, Robert J. Pierce, Graham J. Cook, Robin M. |
author_facet |
Stratoudakis, Yorgos Fryer, Robert J. Pierce, Graham J. Cook, Robin M. |
author_sort |
Stratoudakis, Yorgos |
title |
Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters |
title_short |
Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters |
title_full |
Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters |
title_fullStr |
Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters |
title_full_unstemmed |
Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters |
title_sort |
differences in life history features of long rough dab hippoglossoides platessoides within scottish waters |
publishDate |
1997 |
url |
https://strathprints.strath.ac.uk/51061/ https://doi.org/10.3354/meps158303 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Stratoudakis, Yorgos and Fryer, Robert J. and Pierce, Graham J. and Cook, Robin M. <https://strathprints.strath.ac.uk/view/author/824074.html> (1997 <https://strathprints.strath.ac.uk/view/year/1997.html>) Differences in life history features of long rough dab Hippoglossoides platessoides within Scottish waters. Marine Ecology Progress Series <https://strathprints.strath.ac.uk/view/publications/Marine_Ecology_Progress_Series.html>, 158. pp. 303-306. ISSN 0171-8630 |
op_doi |
https://doi.org/10.3354/meps158303 |
container_title |
Marine Ecology Progress Series |
container_volume |
158 |
container_start_page |
303 |
op_container_end_page |
306 |
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1797588538785529856 |