Earlier this week, approximately 200 pilot whales died and only 35 are fighting for their lives after a mass stranding on an Australian beach in Tasmania.
The pilot whales were discovered yesterday on an exposed beach off the coast of Tasmania, Australia’s largest island.
Surprisingly, an even larger pilot whale pod beached itself in the same location in 2020. Few whales survived the mass beaching.
The stranding occurred on Ocean Beach in Tasmania, west of Strahan. Whales were also found stranded on a sand flat inside Macquarie Harbour, south of the town.
Authorities reported yesterday that only 35 of the 230 whales on Ocean Beach had survived. Brendon Clark, the incident controller, said on Thursday afternoon that 32 of the 35 animals had been rescued.

“We still have three animals alive on the northern end beach, but due to access restrictions, primarily tidal influences, we just haven’t been able to access those three animals safely today,” Clark said.
The exposed conditions on Ocean Beach contributed to the high death rate, and for safety reasons, local authorities restricted volunteer participation to those who had previous whale or marine wildlife training or experience.
470 long-finned pilot whales were discovered beached on sandbars and trapped inside the heads of Macquarie Harbour in 2020. This was Australia’s largest-ever stranding of a pilot whale.
Authorities have asked Macquarie Harbour vessel operators to keep an eye out for potential strandings at other locations. Some animals that have been rescued or refloated may rebeach themselves. This is far too often the tragic outcome of whale rescues.
The mass stranding is Tasmania’s second whale disaster in three days. Previously, more than a dozen sperm whales, mostly young males thought to be part of a bachelor pod, were discovered dead on another beach.
Both sperm and pilot whales were thought to be in the area due to abundant supplies of giant squid, a key food source for both whales, that had appeared along the continental shelf.
Rescuers were concentrating on preventing rescued and refloated whales from rebeaching themselves, and local boaters were asked to stay clear.
Local residents and whale enthusiasts have covered the massive beached beasts still on the sands with seawater-soaked blankets and duvets in an attempt to keep the animals alive. It is not always a successful strategy.
Whale strandings have perplexed marine scientists for decades. The largest stranding in Tasmania occurred in 2020, when over 450 pilot whales were discovered.
I have reported numerous incidents of pilot whale beaching, including many along the coasts of the British Isles, as well as numerous other large and small examples from around the world.
Many expert and non-expert theories have been proposed as to why these massive pods of pilot whales – and other species – beach themselves.
Whales may beach themselves if they are sick, dying, giving birth, or confused.
In the case of pilot whales, the pod’s leader and navigator may have become too ill to successfully and safely lead his pod away from the beach and into safer waters.
Natural causes such as earthquakes and storms may play a role, while human factors such as noise may cause a whale to beach itself.
Many whale experts attribute the increase in beaching to climate change, which raises sea temperatures. That is one theory advanced in relation to the numerous Tasmanian beachings.
Pilot whales are classified into two species: long-finned and short-finned. At sea, the two are difficult to distinguish. In fact, the only way to tell the difference between the species is to examine the skulls closely at autopsy.
Neither of the pilot whale species is a whale. They are both extremely large dolphins. Size and weight vary according to species. Pilot whales with long fins are larger than those with short fins.
Adults can grow to be about 21 feet (6.5m) long, with males being three feet (1m) longer than females. Females can weigh up to 3,000lb (1,300kg) and males can weigh up to 5,100lb (2,300kg).
Even most whale experts are baffled as to why so many whales, particularly pilot whales, commit suicide by beaching themselves in large groups.
We do know that female pilot whales are one of the few mammals, other than humans, that experience menopause. Could this have anything to do with it?
Fortunately, neither of the two pilot whale species is seriously endangered. There are at least a million of them in the world.
Man is the only major predator. The Japanese and Faroese islanders continue to hunt and eat them. Some are kept in captivity and are encouraged to perform demeaning jumps and tricks for tourists.
The orca, or killer whale, is another large dolphin that calls itself a whale, in addition to humans. They attack pods of pilots as well as individual animals, but the fights aren’t as predictable as you might think, and pilots frequently come out on top.
Source Credit: Nationalworld.com