Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis
Aquaculture production of cod has decreased from over 20,000 tonnes in 2009 to less than 2,000 tonnes in 2014 and the industry faces many challenges, one of which is high and unpredictably variable mortality rates in the early life stages. Hence, full-cycle farming with hatchery produced juveniles i...
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Online Access: | http://hdl.handle.net/1893/23498 https://doi.org/10.1371/journal.pone.0158091 http://dspace.stir.ac.uk/bitstream/1893/23498/1/Petersen%20et%20al%202016%20PLOS%20ONE%20cod.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/23498 2023-05-15T15:27:41+02:00 Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis Petersen, Petra E Penman, David Dahle, Geir Patursson, Oystein Taggart, John Aquaculture Research Station of the Faroes (Fiskaaling) Institute of Aquaculture Norwegian Institute of Marine Research orcid:0000-0001-8608-6631 orcid:0000-0002-3843-9663 2016-06-30 application/pdf http://hdl.handle.net/1893/23498 https://doi.org/10.1371/journal.pone.0158091 http://dspace.stir.ac.uk/bitstream/1893/23498/1/Petersen%20et%20al%202016%20PLOS%20ONE%20cod.pdf en eng Public Library of Science Petersen PE, Penman D, Dahle G, Patursson O & Taggart J (2016) Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis. PLoS ONE, 11 (6), Art. No.: e0158091. https://doi.org/10.1371/journal.pone.0158091 e0158091 http://hdl.handle.net/1893/23498 doi:10.1371/journal.pone.0158091 27362346 WOS:000378865200039 2-s2.0-85025074343 560761 http://dspace.stir.ac.uk/bitstream/1893/23498/1/Petersen%20et%20al%202016%20PLOS%20ONE%20cod.pdf © 2016 Petersen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. http://creativecommons.org/licenses/by/4.0/ CC-BY Journal Article VoR - Version of Record 2016 ftunivstirling https://doi.org/10.1371/journal.pone.0158091 2022-06-13T18:45:36Z Aquaculture production of cod has decreased from over 20,000 tonnes in 2009 to less than 2,000 tonnes in 2014 and the industry faces many challenges, one of which is high and unpredictably variable mortality rates in the early life stages. Hence, full-cycle farming with hatchery produced juveniles is still considered unprofitable compared to fisheries and on-growing of wild cod. In the present study, potential batch differences in progeny survival of wild-caught, hatchery-spawned Faroe Bank cod (Gadus morhuaL.) were investigated at two defined periods during early life history; i) the embryo stage (60 day degrees post fertilisation) and ii) the fry stage (110 days post hatch), post metamorphosis. The fry stage experiment was conducted in three replicates (N= 300 per replicate), and a panel of three polymorphic microsatellite markers was used for parental analysis. Mean survival rate at the embryo stage was 69% (± 20% SD). Survival was positively associated with egg diameter (P< 0.01), explaining 90% of the variation in egg survival rates. The data were too scarce to conclude either way concerning a possible correlation between survival rates between the two periods (P< 0.10). Offspring from three batches (from a total of eight) dominated in the fry stage, contributing over 90% of the progeny, and results were consistent over all three replicate tanks. The skewed batch representation observed may be of relevance to the effective management of selective breeding programmes for cod. Article in Journal/Newspaper atlantic cod Gadus morhua University of Stirling: Stirling Digital Research Repository Faroe Bank ENVELOPE(-8.667,-8.667,60.917,60.917) PLOS ONE 11 6 e0158091 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
description |
Aquaculture production of cod has decreased from over 20,000 tonnes in 2009 to less than 2,000 tonnes in 2014 and the industry faces many challenges, one of which is high and unpredictably variable mortality rates in the early life stages. Hence, full-cycle farming with hatchery produced juveniles is still considered unprofitable compared to fisheries and on-growing of wild cod. In the present study, potential batch differences in progeny survival of wild-caught, hatchery-spawned Faroe Bank cod (Gadus morhuaL.) were investigated at two defined periods during early life history; i) the embryo stage (60 day degrees post fertilisation) and ii) the fry stage (110 days post hatch), post metamorphosis. The fry stage experiment was conducted in three replicates (N= 300 per replicate), and a panel of three polymorphic microsatellite markers was used for parental analysis. Mean survival rate at the embryo stage was 69% (± 20% SD). Survival was positively associated with egg diameter (P< 0.01), explaining 90% of the variation in egg survival rates. The data were too scarce to conclude either way concerning a possible correlation between survival rates between the two periods (P< 0.10). Offspring from three batches (from a total of eight) dominated in the fry stage, contributing over 90% of the progeny, and results were consistent over all three replicate tanks. The skewed batch representation observed may be of relevance to the effective management of selective breeding programmes for cod. |
author2 |
Aquaculture Research Station of the Faroes (Fiskaaling) Institute of Aquaculture Norwegian Institute of Marine Research orcid:0000-0001-8608-6631 orcid:0000-0002-3843-9663 |
format |
Article in Journal/Newspaper |
author |
Petersen, Petra E Penman, David Dahle, Geir Patursson, Oystein Taggart, John |
spellingShingle |
Petersen, Petra E Penman, David Dahle, Geir Patursson, Oystein Taggart, John Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis |
author_facet |
Petersen, Petra E Penman, David Dahle, Geir Patursson, Oystein Taggart, John |
author_sort |
Petersen, Petra E |
title |
Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis |
title_short |
Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis |
title_full |
Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis |
title_fullStr |
Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis |
title_full_unstemmed |
Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis |
title_sort |
differential survival among batches of atlantic cod (gadus morhua l.) from fertilisation through to post-metamorphosis |
publisher |
Public Library of Science |
publishDate |
2016 |
url |
http://hdl.handle.net/1893/23498 https://doi.org/10.1371/journal.pone.0158091 http://dspace.stir.ac.uk/bitstream/1893/23498/1/Petersen%20et%20al%202016%20PLOS%20ONE%20cod.pdf |
long_lat |
ENVELOPE(-8.667,-8.667,60.917,60.917) |
geographic |
Faroe Bank |
geographic_facet |
Faroe Bank |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
Petersen PE, Penman D, Dahle G, Patursson O & Taggart J (2016) Differential Survival among Batches of Atlantic Cod (Gadus morhua L.) from Fertilisation through to Post-Metamorphosis. PLoS ONE, 11 (6), Art. No.: e0158091. https://doi.org/10.1371/journal.pone.0158091 e0158091 http://hdl.handle.net/1893/23498 doi:10.1371/journal.pone.0158091 27362346 WOS:000378865200039 2-s2.0-85025074343 560761 http://dspace.stir.ac.uk/bitstream/1893/23498/1/Petersen%20et%20al%202016%20PLOS%20ONE%20cod.pdf |
op_rights |
© 2016 Petersen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0158091 |
container_title |
PLOS ONE |
container_volume |
11 |
container_issue |
6 |
container_start_page |
e0158091 |
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1766358100399357952 |