Fecundity regulation in horse mackerel
Egg production methods have been used successfully in the provision of advice for fisheries management. These methods need accurate and unbiased estimates of fecundity. We explore the reproductive strategy of horse mackerel and estimation of fecundity. Fecundity and fecundity regulation in relation...
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2013
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ftnuigalway:oai:https://researchrepository.universityofgalway.ie:10379/14255 2024-10-06T13:48:49+00:00 Fecundity regulation in horse mackerel van Damme, C. J. G. Thorsen, A. Fonn, M. Alvarez, P. Garabana, D. O'Hea, B. Perez, J. R. Dickey-Collas, M. 2013-10-18 http://hdl.handle.net/10379/14255 https://doi.org/10.13025/25427 https://doi.org/10.1093/icesjms/fst156 unknown Oxford University Press (OUP) ICES Journal of Marine Science van Damme, C. J. G. Thorsen, A.; Fonn, M.; Alvarez, P.; Garabana, D.; O'Hea, B.; Perez, J. R.; Dickey-Collas, M. (2013). Fecundity regulation in horse mackerel. ICES Journal of Marine Science 71 (3), 546-558 1054-3139,1095-9289 http://hdl.handle.net/10379/14255 https://doi.org/10.13025/25427 doi:10.1093/icesjms/fst156 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ batch fecundity body condition egg production method indeterminate lipid content trachurus trachurus daily egg-production herring clupea-harengus trachurus-trachurus l pleuronectes-platessa l saronikos gulf greece scomber-scombrus l north-sea plaice cod gadus-morhua spawning frequency Article 2013 ftnuigalway https://doi.org/10.13025/2542710.1093/icesjms/fst156 2024-09-17T14:44:29Z Egg production methods have been used successfully in the provision of advice for fisheries management. These methods need accurate and unbiased estimates of fecundity. We explore the reproductive strategy of horse mackerel and estimation of fecundity. Fecundity and fecundity regulation in relation to condition was investigated over a number of years. Fultons K, lipid content, and hepatosomatic index increased after the start of spawning, though decreased again at the end of spawning. The increase in the gonadosomatic index, fecundity, and body condition after the onset of spawning suggests that horse mackerel utilizes food resources during the spawning season and might be an income breeder. However, the decline in K and lipid before the spawning season suggests that the first batch of oocytes is developed on stored energy. Fecundity varied between years and within a spawning season. Over latitude, variations in fecundity were small. K and lipid content are not reliable indices as proxy for fecundity. Batch fecundity appears to be heterogeneous across the spawning season but homogeneous across latitude. The homogeneity of batch fecundity over latitude could indicate that the daily egg production method is an appropriate approach for estimating the abundance of a wide ranging species, as horse mackerel. Article in Journal/Newspaper Gadus morhua 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 |
batch fecundity body condition egg production method indeterminate lipid content trachurus trachurus daily egg-production herring clupea-harengus trachurus-trachurus l pleuronectes-platessa l saronikos gulf greece scomber-scombrus l north-sea plaice cod gadus-morhua spawning frequency |
spellingShingle |
batch fecundity body condition egg production method indeterminate lipid content trachurus trachurus daily egg-production herring clupea-harengus trachurus-trachurus l pleuronectes-platessa l saronikos gulf greece scomber-scombrus l north-sea plaice cod gadus-morhua spawning frequency van Damme, C. J. G. Thorsen, A. Fonn, M. Alvarez, P. Garabana, D. O'Hea, B. Perez, J. R. Dickey-Collas, M. Fecundity regulation in horse mackerel |
topic_facet |
batch fecundity body condition egg production method indeterminate lipid content trachurus trachurus daily egg-production herring clupea-harengus trachurus-trachurus l pleuronectes-platessa l saronikos gulf greece scomber-scombrus l north-sea plaice cod gadus-morhua spawning frequency |
description |
Egg production methods have been used successfully in the provision of advice for fisheries management. These methods need accurate and unbiased estimates of fecundity. We explore the reproductive strategy of horse mackerel and estimation of fecundity. Fecundity and fecundity regulation in relation to condition was investigated over a number of years. Fultons K, lipid content, and hepatosomatic index increased after the start of spawning, though decreased again at the end of spawning. The increase in the gonadosomatic index, fecundity, and body condition after the onset of spawning suggests that horse mackerel utilizes food resources during the spawning season and might be an income breeder. However, the decline in K and lipid before the spawning season suggests that the first batch of oocytes is developed on stored energy. Fecundity varied between years and within a spawning season. Over latitude, variations in fecundity were small. K and lipid content are not reliable indices as proxy for fecundity. Batch fecundity appears to be heterogeneous across the spawning season but homogeneous across latitude. The homogeneity of batch fecundity over latitude could indicate that the daily egg production method is an appropriate approach for estimating the abundance of a wide ranging species, as horse mackerel. |
format |
Article in Journal/Newspaper |
author |
van Damme, C. J. G. Thorsen, A. Fonn, M. Alvarez, P. Garabana, D. O'Hea, B. Perez, J. R. Dickey-Collas, M. |
author_facet |
van Damme, C. J. G. Thorsen, A. Fonn, M. Alvarez, P. Garabana, D. O'Hea, B. Perez, J. R. Dickey-Collas, M. |
author_sort |
van Damme, C. J. G. |
title |
Fecundity regulation in horse mackerel |
title_short |
Fecundity regulation in horse mackerel |
title_full |
Fecundity regulation in horse mackerel |
title_fullStr |
Fecundity regulation in horse mackerel |
title_full_unstemmed |
Fecundity regulation in horse mackerel |
title_sort |
fecundity regulation in horse mackerel |
publisher |
Oxford University Press (OUP) |
publishDate |
2013 |
url |
http://hdl.handle.net/10379/14255 https://doi.org/10.13025/25427 https://doi.org/10.1093/icesjms/fst156 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_relation |
ICES Journal of Marine Science van Damme, C. J. G. Thorsen, A.; Fonn, M.; Alvarez, P.; Garabana, D.; O'Hea, B.; Perez, J. R.; Dickey-Collas, M. (2013). Fecundity regulation in horse mackerel. ICES Journal of Marine Science 71 (3), 546-558 1054-3139,1095-9289 http://hdl.handle.net/10379/14255 https://doi.org/10.13025/25427 doi:10.1093/icesjms/fst156 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.13025/2542710.1093/icesjms/fst156 |
_version_ |
1812176901423235072 |