Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality
Sperm competition experiments were conducted to test the null hypothesis that sperm quality is not affected by male body size in Atlantic cod (Gadus morhua). Genetic markers (allozymes) were used to determine the proportion of larvae sired by pairs of males when their sperm was combined with eggs of...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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1999
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Online Access: | http://dx.doi.org/10.1139/f99-164 http://www.nrcresearchpress.com/doi/pdf/10.1139/f99-164 |
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crcansciencepubl:10.1139/f99-164 2023-12-17T10:26:59+01:00 Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality Rakitin, Ana Ferguson, Moira M Trippel, Edward A 1999 http://dx.doi.org/10.1139/f99-164 http://www.nrcresearchpress.com/doi/pdf/10.1139/f99-164 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 56, issue 12, page 2315-2323 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1999 crcansciencepubl https://doi.org/10.1139/f99-164 2023-11-19T13:39:15Z Sperm competition experiments were conducted to test the null hypothesis that sperm quality is not affected by male body size in Atlantic cod (Gadus morhua). Genetic markers (allozymes) were used to determine the proportion of larvae sired by pairs of males when their sperm was combined with eggs of a single female simultaneously. Significant differences in fertilization success between males were not explained by differences in body size. Fertilization success was positively associated with male condition factor (K) and with spermatozoa density in each male's semen when equal volumes of semen from each male were used. Male K was positively associated with male fertilization success when the volume of semen used from each male was adjusted to add approximately equal numbers of spermatozoa from each male. The relative fertilization success of males varied depending on which female was the egg donor, suggesting that female "choice" at the gamete level may be occurring in cod. Article in Journal/Newspaper atlantic cod Gadus morhua Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 56 12 2315 2323 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Rakitin, Ana Ferguson, Moira M Trippel, Edward A Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Sperm competition experiments were conducted to test the null hypothesis that sperm quality is not affected by male body size in Atlantic cod (Gadus morhua). Genetic markers (allozymes) were used to determine the proportion of larvae sired by pairs of males when their sperm was combined with eggs of a single female simultaneously. Significant differences in fertilization success between males were not explained by differences in body size. Fertilization success was positively associated with male condition factor (K) and with spermatozoa density in each male's semen when equal volumes of semen from each male were used. Male K was positively associated with male fertilization success when the volume of semen used from each male was adjusted to add approximately equal numbers of spermatozoa from each male. The relative fertilization success of males varied depending on which female was the egg donor, suggesting that female "choice" at the gamete level may be occurring in cod. |
format |
Article in Journal/Newspaper |
author |
Rakitin, Ana Ferguson, Moira M Trippel, Edward A |
author_facet |
Rakitin, Ana Ferguson, Moira M Trippel, Edward A |
author_sort |
Rakitin, Ana |
title |
Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality |
title_short |
Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality |
title_full |
Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality |
title_fullStr |
Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality |
title_full_unstemmed |
Sperm competition and fertilization success in Atlantic cod ( Gadus morhua ): effect of sire size and condition factor on gamete quality |
title_sort |
sperm competition and fertilization success in atlantic cod ( gadus morhua ): effect of sire size and condition factor on gamete quality |
publisher |
Canadian Science Publishing |
publishDate |
1999 |
url |
http://dx.doi.org/10.1139/f99-164 http://www.nrcresearchpress.com/doi/pdf/10.1139/f99-164 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 56, issue 12, page 2315-2323 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f99-164 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
56 |
container_issue |
12 |
container_start_page |
2315 |
op_container_end_page |
2323 |
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1785578752239992832 |