Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank
Abstract We estimated recent growth of Atlantic cod ( Gadus morhua ) and haddock ( Melanogrammus aeglefinus ) larvae collected on the southern flank of Georges Bank in May 1992–94 from the ratio of RNA to DNA ( R / D ) and water temperature. Growth of both species increased with water temperature to...
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crwiley:10.1046/j.1365-2419.2003.00278.x 2024-09-15T17:55:19+00:00 Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank Buckley, Lawrence J. Caldarone, Elaine M. Lough, R. Gregory 2004 http://dx.doi.org/10.1046/j.1365-2419.2003.00278.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.2003.00278.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.2003.00278.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 13, issue 2, page 134-140 ISSN 1054-6006 1365-2419 journal-article 2004 crwiley https://doi.org/10.1046/j.1365-2419.2003.00278.x 2024-07-09T04:14:57Z Abstract We estimated recent growth of Atlantic cod ( Gadus morhua ) and haddock ( Melanogrammus aeglefinus ) larvae collected on the southern flank of Georges Bank in May 1992–94 from the ratio of RNA to DNA ( R / D ) and water temperature. Growth of both species increased with water temperature to about 7°C and then decreased. The highest growth rates were observed in May 1993 at water temperatures around 7°C. These data confirm an earlier observation of comparable temperature optima for growth of Atlantic cod and haddock larvae in the north‐west Atlantic. Comparisons of field growth rates and temperature optima with data for larvae cultured at high temperatures and prey densities in the laboratory suggest that growth may have been food‐limited at higher temperatures on Georges Bank. Given that 7°C is the long‐term mean water temperature on the southern flank in May and that climate models predict a possible 2–4°C rise in water temperatures for the western North Atlantic, our findings point to a possible adverse effect of global warming on Atlantic cod and haddock. Article in Journal/Newspaper atlantic cod Gadus morhua North Atlantic North West Atlantic Wiley Online Library Fisheries Oceanography 13 2 134 140 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract We estimated recent growth of Atlantic cod ( Gadus morhua ) and haddock ( Melanogrammus aeglefinus ) larvae collected on the southern flank of Georges Bank in May 1992–94 from the ratio of RNA to DNA ( R / D ) and water temperature. Growth of both species increased with water temperature to about 7°C and then decreased. The highest growth rates were observed in May 1993 at water temperatures around 7°C. These data confirm an earlier observation of comparable temperature optima for growth of Atlantic cod and haddock larvae in the north‐west Atlantic. Comparisons of field growth rates and temperature optima with data for larvae cultured at high temperatures and prey densities in the laboratory suggest that growth may have been food‐limited at higher temperatures on Georges Bank. Given that 7°C is the long‐term mean water temperature on the southern flank in May and that climate models predict a possible 2–4°C rise in water temperatures for the western North Atlantic, our findings point to a possible adverse effect of global warming on Atlantic cod and haddock. |
format |
Article in Journal/Newspaper |
author |
Buckley, Lawrence J. Caldarone, Elaine M. Lough, R. Gregory |
spellingShingle |
Buckley, Lawrence J. Caldarone, Elaine M. Lough, R. Gregory Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank |
author_facet |
Buckley, Lawrence J. Caldarone, Elaine M. Lough, R. Gregory |
author_sort |
Buckley, Lawrence J. |
title |
Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank |
title_short |
Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank |
title_full |
Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank |
title_fullStr |
Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank |
title_full_unstemmed |
Optimum temperature and food‐limited growth of larval Atlantic cod ( Gadus morhua) and haddock ( Melanogrammus aeglefinus) on Georges Bank |
title_sort |
optimum temperature and food‐limited growth of larval atlantic cod ( gadus morhua) and haddock ( melanogrammus aeglefinus) on georges bank |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1046/j.1365-2419.2003.00278.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.2003.00278.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.2003.00278.x |
genre |
atlantic cod Gadus morhua North Atlantic North West Atlantic |
genre_facet |
atlantic cod Gadus morhua North Atlantic North West Atlantic |
op_source |
Fisheries Oceanography volume 13, issue 2, page 134-140 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2419.2003.00278.x |
container_title |
Fisheries Oceanography |
container_volume |
13 |
container_issue |
2 |
container_start_page |
134 |
op_container_end_page |
140 |
_version_ |
1810431617543438336 |