Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic
Many stocks of Atlantic cod (Gadus morhua) on both sides of the North Atlantic are currently at much reduced levels of biomass, but this situation is not in all instances the result of long, continuous decline. Most Northwest Atlantic stocks declined to low levels during the 1970s, but increased dur...
Published in: | Resiliency of Gadid Stocks to Fishing and Climate Change |
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Language: | English |
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Alaska Sea Grant College Program
2008
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Online Access: | http://hdl.handle.net/11250/109356 https://doi.org/10.4027/rgsfcc.2008.03 |
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ftimr:oai:imr.brage.unit.no:11250/109356 2023-05-15T15:27:11+02:00 Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic Lilly, George R. Wieland, Kai Rothschild, Brian J. Sundby, Svein Drinkwater, Ken Brander, Keith Ottersen, Geir Carscadden, James E. Stenson, Garry B. Chouinard, Ghislain A. Swain, Douglas P. Daan, N. Enberg, Katja Hammill, Michael O. Rosing-Asvid, Aqqalu Svedäng, Henrik Vázquez, Antonio 2008 application/pdf http://hdl.handle.net/11250/109356 https://doi.org/10.4027/rgsfcc.2008.03 eng eng Alaska Sea Grant College Program Resiliency of Gadid Stocks to Fishing and Climate Change, 2008: 39-66 urn:isbn:978-1-56612-126-2 http://hdl.handle.net/11250/109356 http://dx.doi.org/10.4027/rgsfcc.2008.03 s. 39-66 stock fluctuations bestandssvingninger VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Chapter 2008 ftimr https://doi.org/10.4027/rgsfcc.2008.03 2021-09-23T20:15:11Z Many stocks of Atlantic cod (Gadus morhua) on both sides of the North Atlantic are currently at much reduced levels of biomass, but this situation is not in all instances the result of long, continuous decline. Most Northwest Atlantic stocks declined to low levels during the 1970s, but increased during the 1980s before declining even more severely during the late 1980s and early 1990s. Several of these stocks have shown little recovery despite severe restrictions on directed fishing. Many stocks in the Northeast Atlantic have experienced sustained increases and sustained decreases, but generally not in concert. Among-stock comparisons illustrate that fishing has played a dominant role in the dynamics of all cod stocks, but variability in climate has contributed to variability in recruitment, individual growth, and natural mortality. A cooling event during the last three decades of the twentieth century contributed to the rapid decline of several stocks in the Northwest Atlantic, and changes in life-history traits (growth rate, age and size at maturity) and in the biotic environment (predators and prey) may be contributing to recovery being slow. Book Part atlantic cod Gadus morhua North Atlantic Northeast Atlantic Northwest Atlantic Institute for Marine Research: Brage IMR Resiliency of Gadid Stocks to Fishing and Climate Change 39 66 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
stock fluctuations bestandssvingninger VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
spellingShingle |
stock fluctuations bestandssvingninger VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Lilly, George R. Wieland, Kai Rothschild, Brian J. Sundby, Svein Drinkwater, Ken Brander, Keith Ottersen, Geir Carscadden, James E. Stenson, Garry B. Chouinard, Ghislain A. Swain, Douglas P. Daan, N. Enberg, Katja Hammill, Michael O. Rosing-Asvid, Aqqalu Svedäng, Henrik Vázquez, Antonio Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic |
topic_facet |
stock fluctuations bestandssvingninger VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
description |
Many stocks of Atlantic cod (Gadus morhua) on both sides of the North Atlantic are currently at much reduced levels of biomass, but this situation is not in all instances the result of long, continuous decline. Most Northwest Atlantic stocks declined to low levels during the 1970s, but increased during the 1980s before declining even more severely during the late 1980s and early 1990s. Several of these stocks have shown little recovery despite severe restrictions on directed fishing. Many stocks in the Northeast Atlantic have experienced sustained increases and sustained decreases, but generally not in concert. Among-stock comparisons illustrate that fishing has played a dominant role in the dynamics of all cod stocks, but variability in climate has contributed to variability in recruitment, individual growth, and natural mortality. A cooling event during the last three decades of the twentieth century contributed to the rapid decline of several stocks in the Northwest Atlantic, and changes in life-history traits (growth rate, age and size at maturity) and in the biotic environment (predators and prey) may be contributing to recovery being slow. |
format |
Book Part |
author |
Lilly, George R. Wieland, Kai Rothschild, Brian J. Sundby, Svein Drinkwater, Ken Brander, Keith Ottersen, Geir Carscadden, James E. Stenson, Garry B. Chouinard, Ghislain A. Swain, Douglas P. Daan, N. Enberg, Katja Hammill, Michael O. Rosing-Asvid, Aqqalu Svedäng, Henrik Vázquez, Antonio |
author_facet |
Lilly, George R. Wieland, Kai Rothschild, Brian J. Sundby, Svein Drinkwater, Ken Brander, Keith Ottersen, Geir Carscadden, James E. Stenson, Garry B. Chouinard, Ghislain A. Swain, Douglas P. Daan, N. Enberg, Katja Hammill, Michael O. Rosing-Asvid, Aqqalu Svedäng, Henrik Vázquez, Antonio |
author_sort |
Lilly, George R. |
title |
Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic |
title_short |
Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic |
title_full |
Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic |
title_fullStr |
Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic |
title_full_unstemmed |
Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic |
title_sort |
decline and recovery of atlantic cod (gadus morhua) stocks throughout the north atlantic |
publisher |
Alaska Sea Grant College Program |
publishDate |
2008 |
url |
http://hdl.handle.net/11250/109356 https://doi.org/10.4027/rgsfcc.2008.03 |
genre |
atlantic cod Gadus morhua North Atlantic Northeast Atlantic Northwest Atlantic |
genre_facet |
atlantic cod Gadus morhua North Atlantic Northeast Atlantic Northwest Atlantic |
op_source |
s. 39-66 |
op_relation |
Resiliency of Gadid Stocks to Fishing and Climate Change, 2008: 39-66 urn:isbn:978-1-56612-126-2 http://hdl.handle.net/11250/109356 http://dx.doi.org/10.4027/rgsfcc.2008.03 |
op_doi |
https://doi.org/10.4027/rgsfcc.2008.03 |
container_title |
Resiliency of Gadid Stocks to Fishing and Climate Change |
container_start_page |
39 |
op_container_end_page |
66 |
_version_ |
1766357637898698752 |