{"id":43708,"date":"2017-11-07T20:24:12","date_gmt":"2017-11-07T20:24:12","guid":{"rendered":"https:\/\/baleines.wpengine.com\/les-bateaux-se-tiendront-plus-loin-des-epaulards\/"},"modified":"2020-03-16T19:57:15","modified_gmt":"2020-03-16T19:57:15","slug":"boats-to-maintain-greater-distance-from-killer-whales","status":"publish","type":"post","link":"https:\/\/baleinesendirect.org\/en\/boats-to-maintain-greater-distance-from-killer-whales\/","title":{"rendered":"Boats to maintain greater distance from killer whales"},"content":{"rendered":"

By next spring, vessels off the coast of British Columbia will no longer be permitted to approach within 200 metres of southern resident killer whales, announced DFO Minister Dominic LeBlanc on October 26; this is 100 metres more than the current distance. Approximately thirty offshore tour companies have decided to adopt this new minimum approach distance immediately. Will this protective measure be sufficient to prevent the extinction of a population of which there are just 77 individuals left?<\/p>\n

The population of southern resident killer whales has been declining for the past two decades and no growth is projected under current conditions. The main threats to the survival of this population include the depletion of its preferred prey (chinook salmon), underwater noise and disturbance caused by human activities, and high levels of contaminants (such as PCBs) that accumulate in its tissues.<\/p>\n

Noise from commercial and recreational vessels of all types obscures the sound frequencies used by killer whales to detect prey and communicate. Additionally, boats in proximity alter the killer whale\u2019s behaviour, thereby reducing its feeding efficiency. The killer whale not only requires abundant prey, but also a habitat that is quiet enough to locate and hunt these prey. Reducing noise levels and disturbance by establishing a minimum approach distance is therefore an important first step to increasing this population\u2019s chances of survival.<\/p>\n","protected":false},"excerpt":{"rendered":"

By next spring, vessels off the coast of British Columbia will no longer be permitted to approach within 200 metres of southern resident killer whales, announced DFO Minister Dominic LeBlanc on October 26; this is 100 metres more than the current distance. Approximately thirty offshore tour companies have decided to adopt this new minimum approach […]<\/p>\n","protected":false},"author":19,"featured_media":39591,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[18],"tags":[443,488,567,548],"class_list":["post-43708","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-conservation-en","tag-endangered-species","tag-noise-pollution","tag-species-at-risk"],"acf":[],"yoast_head":"\nBoats to maintain greater distance from killer whales - Baleines en direct<\/title>\n<meta name=\"description\" content=\"By next spring, vessels off the coast of British Columbia will no longer be permitted to approach within 200 metres of southern resident killer whales,\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/baleinesendirect.org\/en\/boats-to-maintain-greater-distance-from-killer-whales\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Boats to maintain greater distance from killer whales - 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