ABC News (Australia) published this video item, entitled “More than 450 whales beached in Tasmania’s largest recorded stranding | ABC News” – below is their description.
The stranding of more than 450 whales on Tasmania’s West Coast is the largest recorded in the state’s history.
About 270 whales were discovered in Macquarie Harbour on Monday, with a further 200 found this morning.
Parks and Wildlife regional manager Nic Deka said they were found during an aerial reconnaissance to check how many whales were still alive.
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In This Story: Beached
Cetacean stranding, commonly known as beaching, is a phenomenon in which whales and dolphins strand themselves on land, usually on a beach. Beached whales often die due to dehydration, collapsing under their own weight, or drowning when high tide covers the blowhole. Cetacean stranding has occurred since before recorded history.
Several explanations for why cetaceans strand themselves have been proposed, including changes in water temperatures, peculiarities of whales’ echolocation in certain surroundings, and geomagnetic disturbances, but none have so far been universally accepted as a definitive reason for the behavior. However, a link between the mass beaching of beaked whales and use of mid-frequency active sonar has been found.
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