A global assessment of salmon aquaculture impacts on wild salmonids.

Since the late 1980s, wild salmon catch and abundance have declined dramatically in the North Atlantic and in much of the northeastern Pacific south of Alaska. In these areas, there has been a concomitant increase in the production of farmed salmon. Previous studies have shown negative impacts on wi...

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Autores principales:	Jennifer S Ford, Ransom A Myers
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2008
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/bf4f9142ed1b4fe99ec3e24846c2fd5d
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id	oai:doaj.org-article:bf4f9142ed1b4fe99ec3e24846c2fd5d
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spelling	oai:doaj.org-article:bf4f9142ed1b4fe99ec3e24846c2fd5d2021-11-25T05:33:30ZA global assessment of salmon aquaculture impacts on wild salmonids.1544-91731545-788510.1371/journal.pbio.0060033https://doaj.org/article/bf4f9142ed1b4fe99ec3e24846c2fd5d2008-02-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18271629/?tool=EBIhttps://doaj.org/toc/1544-9173https://doaj.org/toc/1545-7885Since the late 1980s, wild salmon catch and abundance have declined dramatically in the North Atlantic and in much of the northeastern Pacific south of Alaska. In these areas, there has been a concomitant increase in the production of farmed salmon. Previous studies have shown negative impacts on wild salmonids, but these results have been difficult to translate into predictions of change in wild population survival and abundance. We compared marine survival of salmonids in areas with salmon farming to adjacent areas without farms in Scotland, Ireland, Atlantic Canada, and Pacific Canada to estimate changes in marine survival concurrent with the growth of salmon aquaculture. Through a meta-analysis of existing data, we show a reduction in survival or abundance of Atlantic salmon; sea trout; and pink, chum, and coho salmon in association with increased production of farmed salmon. In many cases, these reductions in survival or abundance are greater than 50%. Meta-analytic estimates of the mean effect are significant and negative, suggesting that salmon farming has reduced survival of wild salmon and trout in many populations and countries.Jennifer S FordRansom A MyersPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Biology, Vol 6, Iss 2, p e33 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Jennifer S Ford Ransom A Myers A global assessment of salmon aquaculture impacts on wild salmonids.
description	Since the late 1980s, wild salmon catch and abundance have declined dramatically in the North Atlantic and in much of the northeastern Pacific south of Alaska. In these areas, there has been a concomitant increase in the production of farmed salmon. Previous studies have shown negative impacts on wild salmonids, but these results have been difficult to translate into predictions of change in wild population survival and abundance. We compared marine survival of salmonids in areas with salmon farming to adjacent areas without farms in Scotland, Ireland, Atlantic Canada, and Pacific Canada to estimate changes in marine survival concurrent with the growth of salmon aquaculture. Through a meta-analysis of existing data, we show a reduction in survival or abundance of Atlantic salmon; sea trout; and pink, chum, and coho salmon in association with increased production of farmed salmon. In many cases, these reductions in survival or abundance are greater than 50%. Meta-analytic estimates of the mean effect are significant and negative, suggesting that salmon farming has reduced survival of wild salmon and trout in many populations and countries.
format	article
author	Jennifer S Ford Ransom A Myers
author_facet	Jennifer S Ford Ransom A Myers
author_sort	Jennifer S Ford
title	A global assessment of salmon aquaculture impacts on wild salmonids.
title_short	A global assessment of salmon aquaculture impacts on wild salmonids.
title_full	A global assessment of salmon aquaculture impacts on wild salmonids.
title_fullStr	A global assessment of salmon aquaculture impacts on wild salmonids.
title_full_unstemmed	A global assessment of salmon aquaculture impacts on wild salmonids.
title_sort	global assessment of salmon aquaculture impacts on wild salmonids.
publisher	Public Library of Science (PLoS)
publishDate	2008
url	https://doaj.org/article/bf4f9142ed1b4fe99ec3e24846c2fd5d
work_keys_str_mv	AT jennifersford aglobalassessmentofsalmonaquacultureimpactsonwildsalmonids AT ransomamyers aglobalassessmentofsalmonaquacultureimpactsonwildsalmonids AT jennifersford globalassessmentofsalmonaquacultureimpactsonwildsalmonids AT ransomamyers globalassessmentofsalmonaquacultureimpactsonwildsalmonids
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A global assessment of salmon aquaculture impacts on wild salmonids.

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