Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod

Fish often escape from aquaculture operations, raising concerns of interactions with wild individuals. Farmed fish from genetically diverse populations grown outside their native range create the threat of outbreeding depression if they escape and interbreed with wild fish. Atlantic cod Gadus morhua...

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Autores principales:	OA Puckrin, CF Purchase, EA Trippel
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2013
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/69e32bff8271429eb58e2738b874a457
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spelling	oai:doaj.org-article:69e32bff8271429eb58e2738b874a4572021-11-17T10:05:39ZUsing purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod1869-215X1869-753410.3354/aei00082https://doaj.org/article/69e32bff8271429eb58e2738b874a4572013-10-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v4/n3/p207-221/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Fish often escape from aquaculture operations, raising concerns of interactions with wild individuals. Farmed fish from genetically diverse populations grown outside their native range create the threat of outbreeding depression if they escape and interbreed with wild fish. Atlantic cod Gadus morhua spawn within cages, releasing millions of embryos into the environment, some of which may live to reproduce. Due to selective breeding, fewer breeding individuals are used in culture relative to wild populations, potentially leading to inbreeding within single cages. If inbreeding reduces survival, this could reduce the likelihood of outbreeding depression if maturing escaped cod mate with wild cod. Forced inbreeding could be used to mitigate some effects of aquaculture on the environment. We aimed to determine if cod inbreed and, if so, what short-term effects inbreeding has on offspring. Spawned embryos from tanks of sister-brother-unrelated male trios underwent microsatellite analysis to determine parentage. Inbreeding occurred, and females did not prefer one type of male over the other. Percent hatch, deformities, larval size, and mortality were monitored in artificially fertilized inbred and unrelated crosses. Percent hatch was higher in non-inbred offspring, but inbreeding had no significant effect on the other factors.OA PuckrinCF PurchaseEA TrippelInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 4, Iss 3, Pp 207-221 (2013)
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 OA Puckrin CF Purchase EA Trippel Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod
description	Fish often escape from aquaculture operations, raising concerns of interactions with wild individuals. Farmed fish from genetically diverse populations grown outside their native range create the threat of outbreeding depression if they escape and interbreed with wild fish. Atlantic cod Gadus morhua spawn within cages, releasing millions of embryos into the environment, some of which may live to reproduce. Due to selective breeding, fewer breeding individuals are used in culture relative to wild populations, potentially leading to inbreeding within single cages. If inbreeding reduces survival, this could reduce the likelihood of outbreeding depression if maturing escaped cod mate with wild cod. Forced inbreeding could be used to mitigate some effects of aquaculture on the environment. We aimed to determine if cod inbreed and, if so, what short-term effects inbreeding has on offspring. Spawned embryos from tanks of sister-brother-unrelated male trios underwent microsatellite analysis to determine parentage. Inbreeding occurred, and females did not prefer one type of male over the other. Percent hatch, deformities, larval size, and mortality were monitored in artificially fertilized inbred and unrelated crosses. Percent hatch was higher in non-inbred offspring, but inbreeding had no significant effect on the other factors.
format	article
author	OA Puckrin CF Purchase EA Trippel
author_facet	OA Puckrin CF Purchase EA Trippel
author_sort	OA Puckrin
title	Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod
title_short	Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod
title_full	Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod
title_fullStr	Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod
title_full_unstemmed	Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod
title_sort	using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed atlantic cod
publisher	Inter-Research
publishDate	2013
url	https://doaj.org/article/69e32bff8271429eb58e2738b874a457
work_keys_str_mv	AT oapuckrin usingpurposefulinbreedingtoreduceoutbreedingdepressioncausedbyescapedfarmedatlanticcod AT cfpurchase usingpurposefulinbreedingtoreduceoutbreedingdepressioncausedbyescapedfarmedatlanticcod AT eatrippel usingpurposefulinbreedingtoreduceoutbreedingdepressioncausedbyescapedfarmedatlanticcod
_version_	1718425615738077184

Using purposeful inbreeding to reduce outbreeding depression caused by escaped farmed Atlantic cod

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