{"refrec":{"BRefID":282499,"RR":"<b>Hutchings, J.A.; Côté, I.M.; Dodson, J.J.; Fleming, I.A.; Jennings, S.; Mantua, N.J.; Peterman, R.M.; Riddell, B.E.; Weaver, A.J.</b> (2012). Climate change, fisheries, and aquaculture: trends and consequences for Canadian marine biodiversity. <i>Environ. Rev. 20(4)</i>: 220-311. <a href=\"http://dx.doi.org/10.1139/a2012-011\" target=\"_blank\">http://dx.doi.org/10.1139/a2012-011</a>","BEntID":274518,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Environ. Rev. 20(4)</i>: 220-311. <a href=\"http://dx.doi.org/10.1139/a2012-011\" target=\"_blank\">http://dx.doi.org/10.1139/a2012-011</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hutchings, J.A.; Côté, I.M.; Dodson, J.J.; Fleming, I.A.; Jennings, S.; Mantua, N.J.; Peterman, R.M.; Riddell, B.E.; Weaver, A.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hutchings, J.A. <i>et al.</i>","Englishabstract":"Climate change, fishing, and aquaculture have affected and will continue to influence Canadian marine biodiversity, albeit at different spatial scales. The Arctic is notably affected by reduced quality and quantity of sea ice caused by global warming, and by concomitant and forecasted changes in ocean productivity, species ecology, and human activity. The Atlantic has been especially impacted by severe overfishing and human-induced alterations to food webs. Climate change, fishing, and aquaculture have all affected, to varying degrees, biodiversity on Canada’s Pacific coast. Past and projected trends in key biodiversity stressors reveal marked change. Oceanographic trends include increasing surface water temperatures, reduced salinity, increased acidity, and, in some areas, reduced oxygen. Reductions in Canada’s fishery catches (those in 2009 were half those of the late 1980s), followed by reductions in fishing pressure, are associated with dramatic changes in the species composition of commercial catches in the Atlantic (formerly groundfish, now predominantly invertebrates and pelagic fish) and the Pacific (formerly salmon, now predominantly groundfish). Aquaculture, dominated by the farming of Atlantic salmon, grew rapidly from the early 1980s until 2002 and has since stabilized. Climate change is forecast to affect marine biodiversity by shifting species distributions, changing species community composition, decoupling the timing of species’ resource requirements and resource availability, and reducing habitat quality. Harvest-related reductions in fish abundance, many by 80% or more, coupled with fishing-induced changes to food webs, are impairing the capacity of species to recover or even persist. Open-sea aquaculture net pens affect biodiversity by (i) habitat alteration resulting from organic wastes, chemical inputs, and use of nonnative species; (ii) exchange of pathogens between farmed and wild species; and (iii) interbreeding between wild fish and farmed escapees. Physical and biological changes in the oceans, along with direct anthropogenic impacts, are modifying Canadian marine biodiversity with implications for food security and the social and economic well-being of coastal communities. To assess the consequences of changes in biodiversity for Canada’s oceans and society, it is necessary to understand the current state of marine biodiversity and how it might be affected by projected changes in climate and human uses.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Climate change, fisheries, and aquaculture: trends and consequences for Canadian marine biodiversity","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:38.643307","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"ocean, fish, overfishing, fish farming, Canada","OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2017-01-10","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000312499400002","VABBcode":null,"OpenAcc":0,"DOI":"10.1139/a2012-011"},"refs":null,"anarec":{"AnaID":282499,"PubliDate":2012,"Pagination":"220-311","XtraPublOfAnaID":null,"ISBN":null,"Volume":"20","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45481,"SerRR":"Environmental Reviews. 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