Hundreds of other whales were washed up in another mysterious mass stranded on a New Zealand An island known to be surrounded by large numbers of sharks.
The strandings come shortly after another mass stranding occurred northwest of Chatham Island, where 215 pilot whales died. This brings the number of whales stranded in the area to 500, all within a few days.
whales delinquencys – when marine mammals sweep shores – happens globally. This phenomenon is common, although scientists do not know why it occurs.
Occasionally we see collective strandings, in which there are a large number of cetaceans at once. Pilot whales are among the species most affected by this phenomenon, along with other species of dolphins.
According to the Department of Conservation, the Chatham Islands are a “stranding hot spot” for whales, with nearly half of New Zealand’s whale strandings found here.
It is not yet clear how many whales survived the latest incident, but it is possible that some whales were killed. This is because of the remoteness of the area.
“This is an incredibly isolated and remote region of the world, with a small and well-known population great white sharkswhich pose a danger to both people and whales,” said Project Jonah at A Facebook Mail.
Wildlife officials have been dispatched to the area to begin rescue efforts. Project Jonah said it will post updates as they become available.
“whale threads remains a mystery. We don’t know exactly why whales and dolphins do this,” said wildlife scientist Vanessa Perrotta of the Marine Predator Research Group at Macquarie University, NEWSWEEK.
“There could be several factors at play here, such as poor mobility, being afraid of something, or following a sick leader. There could be many reasons.
“Pilot whales are social and can be found in big pods sometimes. Unfortunately, the clock starts to chime when a whale/dolphin burrows, the longer they are out of the water, the less chance they have of being released. It’s always a chance to reattach.”
Scientists note that some coastal areas are more susceptible to mass filaments than others. It is not clear why this is, but experts previously suspected that the pods could become garbled in these areas.
Colum Brown, a professor in the School of Natural Sciences at Macquarie University, said: NEWSWEEK Pilot whales appear to have been attracted to specific locations “there is likely to be a lot of food available”.
But then, they got into trouble due to the changing tides.
“Collective delinquencies often occur at the same location multiple times, often years apart, strongly suggesting that they are drawn to these locations for a reason,” Brown said. Once stranded, they can be stranded again when they are liberate them.”
“This happens because the stranded animals are attracting the rest of the capsule. If the capsule is not willing to leave the area because its mates are stuck, that puts the rest of the capsule at risk of stranding as well. It’s kind of Negative feedback loop. “
Brown said the pilot whales’ strong social bonds could work against them in this scenario.
“Pilot whales are often found in pods made up of hundreds of individuals and larger pods can also fuse to become super antlers. Social bonds are very strong and while this works in their favour in some contexts, it is a major problem in one context,” Brown said.