Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions
Genetic interactions between farmed escapees and wild fish represent a challenge to environmentally sustainable aquaculture. Breeding programs for Atlantic cod Gadus morhua have been initiated; however, the genetic response to selection, and therefore the degree of domestication, has not been evalua...
Published in: | Aquaculture Environment Interactions |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | http://hdl.handle.net/11250/2561893 https://doi.org/10.3354/aei00262 |
id |
ftimr:oai:imr.brage.unit.no:11250/2561893 |
---|---|
record_format |
openpolar |
spelling |
ftimr:oai:imr.brage.unit.no:11250/2561893 2023-05-15T14:30:22+02:00 Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions Otterå, Håkon Magne Heino, Mikko Sørvik, Anne Grete Eide Svåsand, Terje Karlsen, Ørjan Thorsen, Anders Glover, Kevin 2018 application/pdf http://hdl.handle.net/11250/2561893 https://doi.org/10.3354/aei00262 eng eng Aquaculture Environment Interactions. 2018, 10 187-200. urn:issn:1869-215X http://hdl.handle.net/11250/2561893 https://doi.org/10.3354/aei00262 cristin:1599219 187-200 10 Aquaculture Environment Interactions Journal article Peer reviewed 2018 ftimr https://doi.org/10.3354/aei00262 2021-09-23T20:16:06Z Genetic interactions between farmed escapees and wild fish represent a challenge to environmentally sustainable aquaculture. Breeding programs for Atlantic cod Gadus morhua have been initiated; however, the genetic response to selection, and therefore the degree of domestication, has not been evaluated. We compared growth of 2 wild and 2 partly domesticated strains that had been under selection for 2 generations. Offspring of 54 synchronously produced families were reared in 2 common-garden experiments, each consisting of Phase I: parallel rearing in mesocosms and tanks 0-8 mo post-hatch, and Phase II: rearing in tanks or sea-cages 8-18 and 8-34 mo post-hatch, respectively. One of the domesticated strains displayed significantly higher growth compared to the wild Northeast Arctic cod population (48-67% higher weight), while the other domesticated strain had a similar growth rate to the Northeast Arctic cod population. The wild population from southern Norway displayed a significantly higher growth rate compared to the wild Northeast Arctic cod population. These results represent the first experimental estimation of domestication-driven changes in farmed cod, and demonstrate that the first breeding programs for this species have been partially successful, resulting in improved growth rates of cod in 2 generations. publishedVersion Article in Journal/Newspaper Arctic cod Arctic atlantic cod Gadus morhua Northeast Arctic cod Institute for Marine Research: Brage IMR Arctic Norway Aquaculture Environment Interactions 10 187 200 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
Genetic interactions between farmed escapees and wild fish represent a challenge to environmentally sustainable aquaculture. Breeding programs for Atlantic cod Gadus morhua have been initiated; however, the genetic response to selection, and therefore the degree of domestication, has not been evaluated. We compared growth of 2 wild and 2 partly domesticated strains that had been under selection for 2 generations. Offspring of 54 synchronously produced families were reared in 2 common-garden experiments, each consisting of Phase I: parallel rearing in mesocosms and tanks 0-8 mo post-hatch, and Phase II: rearing in tanks or sea-cages 8-18 and 8-34 mo post-hatch, respectively. One of the domesticated strains displayed significantly higher growth compared to the wild Northeast Arctic cod population (48-67% higher weight), while the other domesticated strain had a similar growth rate to the Northeast Arctic cod population. The wild population from southern Norway displayed a significantly higher growth rate compared to the wild Northeast Arctic cod population. These results represent the first experimental estimation of domestication-driven changes in farmed cod, and demonstrate that the first breeding programs for this species have been partially successful, resulting in improved growth rates of cod in 2 generations. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Otterå, Håkon Magne Heino, Mikko Sørvik, Anne Grete Eide Svåsand, Terje Karlsen, Ørjan Thorsen, Anders Glover, Kevin |
spellingShingle |
Otterå, Håkon Magne Heino, Mikko Sørvik, Anne Grete Eide Svåsand, Terje Karlsen, Ørjan Thorsen, Anders Glover, Kevin Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions |
author_facet |
Otterå, Håkon Magne Heino, Mikko Sørvik, Anne Grete Eide Svåsand, Terje Karlsen, Ørjan Thorsen, Anders Glover, Kevin |
author_sort |
Otterå, Håkon Magne |
title |
Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions |
title_short |
Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions |
title_full |
Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions |
title_fullStr |
Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions |
title_full_unstemmed |
Growth of wild and domesticated Atlantic cod Gadus morhua reared under semi-commercial conditions |
title_sort |
growth of wild and domesticated atlantic cod gadus morhua reared under semi-commercial conditions |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2561893 https://doi.org/10.3354/aei00262 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic cod Arctic atlantic cod Gadus morhua Northeast Arctic cod |
genre_facet |
Arctic cod Arctic atlantic cod Gadus morhua Northeast Arctic cod |
op_source |
187-200 10 Aquaculture Environment Interactions |
op_relation |
Aquaculture Environment Interactions. 2018, 10 187-200. urn:issn:1869-215X http://hdl.handle.net/11250/2561893 https://doi.org/10.3354/aei00262 cristin:1599219 |
op_doi |
https://doi.org/10.3354/aei00262 |
container_title |
Aquaculture Environment Interactions |
container_volume |
10 |
container_start_page |
187 |
op_container_end_page |
200 |
_version_ |
1766304214508634112 |