{"id":2089,"date":"2016-07-20T10:20:38","date_gmt":"2016-07-20T00:20:38","guid":{"rendered":"https:\/\/theveterinarian.com.au\/?p=2089"},"modified":"2016-08-05T10:25:48","modified_gmt":"2016-08-05T00:25:48","slug":"fish-species-failing-to-adapt-to-warming-oceans","status":"publish","type":"post","link":"https:\/\/theveterinarian.com.au\/?p=2089","title":{"rendered":"Fish species failing to adapt to warming oceans"},"content":{"rendered":"\"Biotest<\/a>A research project associated with Sweden\u2019s University of Gothenberg has found the impact from steadily rising ocean temperatures could prove fatal for some fish species. As well as the loss of biodiversity in the world\u2019s oceans, the impact from warming seas on both marine mammals, and human populations that rely heavily on fish as a food source, would also be dramatic.\r\nUniversity of Tasmania senior research fellow Timothy Clark was a member of the Swedish team that conducted tests during 2012 and 2013 on European perch (Perca fluviatilis) from the \u2018Biotest\u2019 lake enclosure in the Baltic Sea. For over 30 years, these fish have been subjected to the lake\u2019s \u2018elevated\u2019 water temperatures that are heated by the nearby Forsmark nuclear power plant.\r\nThe tests were also conducted on \u2018reference\u2019 fish populations from outside the enclosure, and results showed that while the fish are able to adapt their resting physiological functions to slowly rising temperatures, their maximum physiological functions are far less flexible.\r\n\u201cThe fish can increase their lethal temperature by a certain amount, but they can\u2019t keep up with the current rate of global water temperature increases,\u201d Clark said.\r\nThe scientific team found that when the reference populations outside the enclosure were warmed quickly, their resting metabolic rate rose dramatically, compared to the lake fishes\u2019 lower resting metabolic rates at the same temperature.\r\nAccording to Clark this showed the Biotest fish had adjusted to temperature increases over time, although since the maximum capacity for oxygen uptake did not differ between the two groups, their ability to adapt to changing environmental conditions was probably still limited regardless of the timeframe.\r\n\u201cThere\u2019s been a lot of speculation about what fish populations will look like in 100 years, but this is the best evidence to date that fish aren\u2019t going to be able to adjust indefinitely \u2013 which is why we have to manage greenhouse gas emissions and try to limit global temperature increases,\u201d he said.\r\nResults of the research have been published in the journal Nature Communications.\r\nClark will return to Sweden in 2017 to conduct further testing with the two perch populations.\r\nAnne Layton-Bennett\r\n<\/strong>","protected":false},"excerpt":{"rendered":"

A research project associated with Sweden\u2019s University of Gothenberg has found the impact from steadily rising ocean temperatures could prove fatal for some fish species. As well as the loss of biodiversity in the world\u2019s oceans, the impact from warming seas on both marine mammals, and human populations that rely heavily on fish as a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[439,1534,1288,113,55,1085,1738,1737],"class_list":["post-2089","post","type-post","status-publish","format-standard","hentry","category-news","tag-death","tag-fish","tag-heat","tag-news-2","tag-research","tag-sweden","tag-temperature-increase","tag-university-of-tasmania"],"rise-blocks_total_comments":0,"rise-blocks_categories":[{"term_id":5,"name":"News","slug":"news","term_group":0,"term_taxonomy_id":5,"taxonomy":"category","description":"","parent":0,"count":402,"filter":"raw","cat_ID":5,"category_count":402,"category_description":"","cat_name":"News","category_nicename":"news","category_parent":0}],"rise-blocks_excerpt":"A research project associated with Sweden\u2019s University of Gothenberg has found the impact from steadily rising ocean temperatures could prove fatal for some fish species. As well as the loss of biodiversity in the world\u2019s oceans, the impact from warming seas on both marine mammals, and human populations that rely heavily on fish as a food source, would also be..","blog_post_layout_featured_media_urls":{"thumbnail":"","full":""},"categories_names":{"5":{"name":"News","link":"https:\/\/theveterinarian.com.au\/?cat=5"}},"tags_names":{"439":{"name":"death","link":"https:\/\/theveterinarian.com.au\/?tag=death"},"1534":{"name":"fish","link":"https:\/\/theveterinarian.com.au\/?tag=fish"},"1288":{"name":"heat","link":"https:\/\/theveterinarian.com.au\/?tag=heat"},"113":{"name":"news","link":"https:\/\/theveterinarian.com.au\/?tag=news-2"},"55":{"name":"research","link":"https:\/\/theveterinarian.com.au\/?tag=research"},"1085":{"name":"Sweden","link":"https:\/\/theveterinarian.com.au\/?tag=sweden"},"1738":{"name":"temperature increase","link":"https:\/\/theveterinarian.com.au\/?tag=temperature-increase"},"1737":{"name":"University of Tasmania","link":"https:\/\/theveterinarian.com.au\/?tag=university-of-tasmania"}},"comments_number":"0","wpmagazine_modules_lite_featured_media_urls":{"thumbnail":"","cvmm-medium":"","cvmm-medium-plus":"","cvmm-portrait":"","cvmm-medium-square":"","cvmm-large":"","cvmm-small":"","full":""},"_links":{"self":[{"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=\/wp\/v2\/posts\/2089","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2089"}],"version-history":[{"count":2,"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=\/wp\/v2\/posts\/2089\/revisions"}],"predecessor-version":[{"id":2092,"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=\/wp\/v2\/posts\/2089\/revisions\/2092"}],"wp:attachment":[{"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2089"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2089"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/theveterinarian.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}