Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3
A large sample of otoliths from bigeye grenadier (Macrourus holotrachys) caught as by-catch in the Patagonian toothfish (Dissostichus eleginoides) fishery in Subarea 48.3 was measured and weighed, and the usefulness of otoliths as predictors of fish size was determined. Otolith mass provides good es...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/10217/ https://www.ccamlr.org/en/publications/science_journal/ccamlr-science-volume-9/ccamlr-science-volume-9133-143 |
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ftnerc:oai:nora.nerc.ac.uk:10217 2023-05-15T17:54:43+02:00 Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 Morley, S.A. Belchier, M. 2002 http://nora.nerc.ac.uk/id/eprint/10217/ https://www.ccamlr.org/en/publications/science_journal/ccamlr-science-volume-9/ccamlr-science-volume-9133-143 unknown CCAMLR Morley, S.A. orcid:0000-0002-7761-660X Belchier, M. 2002 Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3. CCAMLR Science, 9. 133-143. Biology and Microbiology Publication - Article PeerReviewed 2002 ftnerc 2023-02-04T19:26:36Z A large sample of otoliths from bigeye grenadier (Macrourus holotrachys) caught as by-catch in the Patagonian toothfish (Dissostichus eleginoides) fishery in Subarea 48.3 was measured and weighed, and the usefulness of otoliths as predictors of fish size was determined. Otolith mass provides good estimates of fish length, whereas otolith length and width measurements provide less accurate estimates of fish length. Seasonal variations in fish mass with reproductive condition need to be considered if predictions of fish mass from otolith mass are undertaken. Otolith size/fish size models should be derived for each fish population under investigation. The length of fish chosen in such studies should be representative of the size range consumed by predators. Article in Journal/Newspaper Patagonian Toothfish Natural Environment Research Council: NERC Open Research Archive |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Biology and Microbiology |
spellingShingle |
Biology and Microbiology Morley, S.A. Belchier, M. Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 |
topic_facet |
Biology and Microbiology |
description |
A large sample of otoliths from bigeye grenadier (Macrourus holotrachys) caught as by-catch in the Patagonian toothfish (Dissostichus eleginoides) fishery in Subarea 48.3 was measured and weighed, and the usefulness of otoliths as predictors of fish size was determined. Otolith mass provides good estimates of fish length, whereas otolith length and width measurements provide less accurate estimates of fish length. Seasonal variations in fish mass with reproductive condition need to be considered if predictions of fish mass from otolith mass are undertaken. Otolith size/fish size models should be derived for each fish population under investigation. The length of fish chosen in such studies should be representative of the size range consumed by predators. |
format |
Article in Journal/Newspaper |
author |
Morley, S.A. Belchier, M. |
author_facet |
Morley, S.A. Belchier, M. |
author_sort |
Morley, S.A. |
title |
Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 |
title_short |
Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 |
title_full |
Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 |
title_fullStr |
Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 |
title_full_unstemmed |
Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 |
title_sort |
otolith and body size relationships in bigeye grenadier (macrourus holotrachys) in ccamlr subarea 48.3 |
publisher |
CCAMLR |
publishDate |
2002 |
url |
http://nora.nerc.ac.uk/id/eprint/10217/ https://www.ccamlr.org/en/publications/science_journal/ccamlr-science-volume-9/ccamlr-science-volume-9133-143 |
genre |
Patagonian Toothfish |
genre_facet |
Patagonian Toothfish |
op_relation |
Morley, S.A. orcid:0000-0002-7761-660X Belchier, M. 2002 Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3. CCAMLR Science, 9. 133-143. |
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1766162523619328000 |