Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females

Atlantic cod escape from fish farms at higher rates than commonly cultured marine species, and escapees have been observed to interact with wild fish in mating aggregations. Previous research suggests that potential interbreeding is mediated largely by the likelihood of wild males spawning with esca...

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Autores principales:	J Beirão, CF Purchase, BF Wringe, IA Fleming
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2014
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/73871ef4d0894e3d80fdda3fb79f4d0e
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spelling	oai:doaj.org-article:73871ef4d0894e3d80fdda3fb79f4d0e2021-11-17T10:08:13ZWild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females1869-215X1869-753410.3354/aei00095https://doaj.org/article/73871ef4d0894e3d80fdda3fb79f4d0e2014-04-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v5/n1/p61-70/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Atlantic cod escape from fish farms at higher rates than commonly cultured marine species, and escapees have been observed to interact with wild fish in mating aggregations. Previous research suggests that potential interbreeding is mediated largely by the likelihood of wild males spawning with escaped females, and as such, the egg and ovarian fluid characteristics of these females could affect fertilization success and the likelihood of hybridization. Farmed cod have been noted to have poor egg quality compared to wild individuals, and some of this difference may be due to the ovarian fluid, which can affect key sperm-motility parameters related to fertilization success. We tested the hypothesis that the ovarian fluid of farmed females negatively affects the sperm performance of wild males. Sperm-motility parameters and fertilization capacity of wild male sperm were analyzed in the presence of both farmed and wild female ovarian fluid. Sperm performed similarly in the presence of wild female ovarian fluid and a seawater control. Ovarian fluid of farmed females negatively affected sperm swimming and the capacity to fertilize eggs. These differences may be related to nutritional deficiencies of farmed individuals. Although it has been demonstrated that wild males actively court farmed females, our results indicate that their ovarian fluid quality can inhibit fertilization success.J BeirãoCF PurchaseBF WringeIA FlemingInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 5, Iss 1, Pp 61-70 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
spellingShingle	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 J Beirão CF Purchase BF Wringe IA Fleming Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females
description	Atlantic cod escape from fish farms at higher rates than commonly cultured marine species, and escapees have been observed to interact with wild fish in mating aggregations. Previous research suggests that potential interbreeding is mediated largely by the likelihood of wild males spawning with escaped females, and as such, the egg and ovarian fluid characteristics of these females could affect fertilization success and the likelihood of hybridization. Farmed cod have been noted to have poor egg quality compared to wild individuals, and some of this difference may be due to the ovarian fluid, which can affect key sperm-motility parameters related to fertilization success. We tested the hypothesis that the ovarian fluid of farmed females negatively affects the sperm performance of wild males. Sperm-motility parameters and fertilization capacity of wild male sperm were analyzed in the presence of both farmed and wild female ovarian fluid. Sperm performed similarly in the presence of wild female ovarian fluid and a seawater control. Ovarian fluid of farmed females negatively affected sperm swimming and the capacity to fertilize eggs. These differences may be related to nutritional deficiencies of farmed individuals. Although it has been demonstrated that wild males actively court farmed females, our results indicate that their ovarian fluid quality can inhibit fertilization success.
format	article
author	J Beirão CF Purchase BF Wringe IA Fleming
author_facet	J Beirão CF Purchase BF Wringe IA Fleming
author_sort	J Beirão
title	Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females
title_short	Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females
title_full	Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females
title_fullStr	Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females
title_full_unstemmed	Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females
title_sort	wild atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females
publisher	Inter-Research
publishDate	2014
url	https://doaj.org/article/73871ef4d0894e3d80fdda3fb79f4d0e
work_keys_str_mv	AT jbeirao wildatlanticcodspermmotilityisnegativelyaffectedbyovarianfluidoffarmedfemales AT cfpurchase wildatlanticcodspermmotilityisnegativelyaffectedbyovarianfluidoffarmedfemales AT bfwringe wildatlanticcodspermmotilityisnegativelyaffectedbyovarianfluidoffarmedfemales AT iafleming wildatlanticcodspermmotilityisnegativelyaffectedbyovarianfluidoffarmedfemales
_version_	1718425617131634688

Wild Atlantic cod sperm motility is negatively affected by ovarian fluid of farmed females

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