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<\/p>\nDrones have collected samples of whales\u2019 breath in the Arctic, confirming for the first time that a potentially deadly virus known as \u201cthe measles of the ocean\u201d is circulating among them.<\/p>\n
The pathogen, whose proper name is cetacean morbillivirus, can cause disorientation and \u201cstranding\u201d behaviour while also weakening the immune systems of infected whales and dolphins.<\/p>\n
Though it is related to the virus that causes measles in humans, there is no record of it passing to people.<\/p>\n
Drone sampling of whale breath reveals first evidence of potentially deadly virus in Arctic<\/p>\n
Scientists, however, are monitoring the risk of a range of pathogens, including cetacean morbillivirus and different strains of influenza, leaping between species.<\/p>\n
The study focused on humpback, sperm and fin whales, using drones fitted with sterile Petri dishes. <\/p>\n
The devices hovered briefly above the whales\u2019 blowholes to collect fine respiratory droplets released as they exhaled. The technique, called \u201cdrone blow sampling\u201d, allows a new means of monitoring the health of some of the largest animals on Earth. Experts say this novel use of drones could aid conservation efforts by allowing early detection of emerging disease threats, without disturbing or harming the creatures.<\/p>\n
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Humpback whales in the Atlantic Ocean off Norway<\/p>\n
ALAMY<\/p>\n
Professor Terry Dawson, a co-author of the study from the geography department at King\u2019s College London, said drone blow sampling was a game-changer. \u201cIt allows us to monitor pathogens in live whales without stress or harm, providing critical insights into disease dynamics in rapidly changing Arctic ecosystems,\u201d he added.<\/p>\n
Adult humpback whales can reach up to 16m in length and weigh as much as 40 tonnes. Sperm whales are even larger, growing up to 18m and weighing about 50 tonnes, while fin whales, the second-largest animal ever to live, can reach 27m and weigh more than 70 tonnes, surpassed only by the blue whale.<\/p>\n
\u2022 Whale that repairs own DNA may hold secret of far longer life<\/a><\/p>\n The Arctic is undergoing rapid climate change, with rising ocean temperatures and shrinking sea ice coverage<\/a> altering food chains and animal migration patterns.<\/p>\n Between 2016 and this year researchers sampled whales in waters off northern Norway and Iceland. They also investigated mammals further south close to Cape Verde, off the coast of west Africa. <\/p>\n