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Sunday February 25, 2024

Gigantic dead blue whale drifting toward Pakistan beach poses health hazards

Carcass of the blue whale is in the bloat stage of decay and can explode anytime

May 26, 2023
A still of blue whale drifting towards Balochistan’s coastal town of Jiwani. — Photo by author
A still of blue whale drifting towards Balochistan’s coastal town of Jiwani. — Photo by author

Marine biologists on Friday advised against going near the carcass of an estimated 42-foot blue whale that is drifting towards the coast of Balochistan’s coastal town of Jiwani as it could pose a serious health hazard to the local population.

The carcass of the blue whale is in the bloat stage of decay and can explode anytime due to which the coastal authorities have alerted the local residents to stay away from the ballooning body.

The whale — dead for nearly eight to 10 days — can burst anytime soon releasing putrid stench and decomposing entrails in the environment.

World Wild Life Fund (WWF) Pakistan marine biologists were the first responders to the call from the local authorities. In their initial examination, they measured the whale and collected blood and tissue samples to run various tests to determine the species and possible cause of death.

The carcass is adrift near the coast of Jiwani, a commercial port located along the Gulf of Oman in the Gwadar District of the Balochistan province, and can wash up on the beach in a matter of hours if not days, authorities said.

The blue whale is the largest animal of all time and has long fascinated biologists. Strangely, despite their immense size, feed on tiny prey.

As filter feeders, they take huge amounts of water into their mouths and strain out prey including shrimp-like krill and other zooplankton using baleen plates made of keratin, the same material found in fingernails.

During feeding dives, the whale exhibited extremely low heart rates, typically of four to eight beats per minute and as low as two.

After surfacing to breathe following foraging dives, the whale had heart rates of 25 to 37 beats per minute.

Blue whales, found in all the world’s oceans, are listed as endangered thanks to 20th-century whaling that drove them nearly to extinction. There are about 10,000 worldwide. They reach up to about 98 feet (30 meters) long and 180 tons.

Blue whales face a gauntlet of risks in the ocean from ship strikes to human noise, and for an animal living on the knife-edge, these dense patches of prey are critical to put on mass and ultimately reproduce, according to experts.