Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea
The extensive movement of Celtic Sea juvenile Atlantic herring (Clupea harengus) during the first year of life into the Irish Sea results in two stocks of herring living together on Irish Sea nursery grounds: the resident autumn-spawned juveniles that originate in the Irish Sea, and the winter-spawn...
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2008
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ftnuigalway:oai:https://researchrepository.universityofgalway.ie:10379/10604 2024-09-30T14:32:32+00:00 Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea Burke, N. Brophy, D. King, P. A. 2008-12-01 http://hdl.handle.net/10379/10604 https://doi.org/10.13025/26791 https://doi.org/10.1093/icesjms/fsn177 unknown Oxford University Press (OUP) ICES Journal of Marine Science Burke, N. Brophy, D.; King, P. A. (2008). Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea. ICES Journal of Marine Science 65 (9), 1670-1675 1054-3139,1095-9289 http://hdl.handle.net/10379/10604 https://doi.org/10.13025/26791 doi:10.1093/icesjms/fsn177 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ atlantic herring clupea harengus otolith shape analysis stock discrimination haddock melanogrammus-aeglefinus north-sea atlantic salmon british-isles georges bank growth-rate baltic sea identification fish microstructure Article 2008 ftnuigalway https://doi.org/10.13025/2679110.1093/icesjms/fsn177 2024-09-17T14:44:29Z The extensive movement of Celtic Sea juvenile Atlantic herring (Clupea harengus) during the first year of life into the Irish Sea results in two stocks of herring living together on Irish Sea nursery grounds: the resident autumn-spawned juveniles that originate in the Irish Sea, and the winter-spawned juveniles that hatch in the Celtic Sea and drift into the Irish Sea as larvae. Measurements of otolith increment width can be used to distinguish between the fast-growing winter-spawned and the slow-growing autumn-spawned stocks, but this method can be time-consuming. Otolith shape analysis is investigated as an alternative method for discriminating between seasonal spawning stocks. Juvenile herring collected from nursery grounds in the Irish Sea in 2006 were classified as autumn- or winter-spawned using increment width measurements. Otolith shape was defined using shape indices and Fourier descriptors. Juveniles were classified successfully to hatch type with a high degree of accuracy (86-87%) using shape variables. The potential use of otolith shape analysis for identifying Celtic Sea juvenile herring in the Irish Sea and its possible use for other mixed-herring stock assessments are discussed. Article in Journal/Newspaper Atlantic salmon National University of Ireland (NUI), Galway: ARAN |
institution |
Open Polar |
collection |
National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
unknown |
topic |
atlantic herring clupea harengus otolith shape analysis stock discrimination haddock melanogrammus-aeglefinus north-sea atlantic salmon british-isles georges bank growth-rate baltic sea identification fish microstructure |
spellingShingle |
atlantic herring clupea harengus otolith shape analysis stock discrimination haddock melanogrammus-aeglefinus north-sea atlantic salmon british-isles georges bank growth-rate baltic sea identification fish microstructure Burke, N. Brophy, D. King, P. A. Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea |
topic_facet |
atlantic herring clupea harengus otolith shape analysis stock discrimination haddock melanogrammus-aeglefinus north-sea atlantic salmon british-isles georges bank growth-rate baltic sea identification fish microstructure |
description |
The extensive movement of Celtic Sea juvenile Atlantic herring (Clupea harengus) during the first year of life into the Irish Sea results in two stocks of herring living together on Irish Sea nursery grounds: the resident autumn-spawned juveniles that originate in the Irish Sea, and the winter-spawned juveniles that hatch in the Celtic Sea and drift into the Irish Sea as larvae. Measurements of otolith increment width can be used to distinguish between the fast-growing winter-spawned and the slow-growing autumn-spawned stocks, but this method can be time-consuming. Otolith shape analysis is investigated as an alternative method for discriminating between seasonal spawning stocks. Juvenile herring collected from nursery grounds in the Irish Sea in 2006 were classified as autumn- or winter-spawned using increment width measurements. Otolith shape was defined using shape indices and Fourier descriptors. Juveniles were classified successfully to hatch type with a high degree of accuracy (86-87%) using shape variables. The potential use of otolith shape analysis for identifying Celtic Sea juvenile herring in the Irish Sea and its possible use for other mixed-herring stock assessments are discussed. |
format |
Article in Journal/Newspaper |
author |
Burke, N. Brophy, D. King, P. A. |
author_facet |
Burke, N. Brophy, D. King, P. A. |
author_sort |
Burke, N. |
title |
Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea |
title_short |
Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea |
title_full |
Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea |
title_fullStr |
Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea |
title_full_unstemmed |
Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea |
title_sort |
otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea |
publisher |
Oxford University Press (OUP) |
publishDate |
2008 |
url |
http://hdl.handle.net/10379/10604 https://doi.org/10.13025/26791 https://doi.org/10.1093/icesjms/fsn177 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
ICES Journal of Marine Science Burke, N. Brophy, D.; King, P. A. (2008). Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea. ICES Journal of Marine Science 65 (9), 1670-1675 1054-3139,1095-9289 http://hdl.handle.net/10379/10604 https://doi.org/10.13025/26791 doi:10.1093/icesjms/fsn177 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.13025/2679110.1093/icesjms/fsn177 |
_version_ |
1811636675442376704 |