Thursday, 18 August, 2022

Another dolphin found dead in Halda

3 dolphin carcasses recovered from the river in a week

  • Staff Correspondent
  • 22 July, 2022 12:00 AM
  • Print news

CHATTOGRAM: Another dolphin of endangered species was found dead in the river Halda, the lone natural fish spawning centre of major carp fishes of the country, on Thursday.

 The dolphin was recovered from Azimer Ghat area under Raozan upazila in the district in the morning.

 With this, a total of three dolphins were found dead in the river within a span of one week.

 Halda River Researcher and Coordinator of Chittagong University Halda Research Laboratory Professor Manzoorul Kibria said with the Thursday’s one, some 38 such dolphins were found dead in the river in the last five years. Mark of injury in the body of the 60-kilogram dolphin of seven-foot length couldn’t be detected as it was decomposed, he said.

 “Some dishonest fishermen set huge net for fishes in the river. The dolphins usually get stuck in the net and die after failing to breathe,” said the researcher.

 Earlier, two dead dolphins were recovered from the Azimer Ghat and Gohira areas under the Raozan upazila on Wednesday and July 14 respectively.

 The species is endangered on the list of International Union for Conservation of Nature (IUCN).

 Mentionable, the number of freshwater dolphins is decreasing gradually in the river Halda  A survey revealed existence of a total of 167 dolphins of ‘Platanista Gengetica’ species in the river in 2018. The number stood at 127 in another survey conducted using technologies two years later in 2020, said sources concerned.

The experts attributed to pollutants from the multi-dimensional sources, absence of sewage treatment plant, dumping of household solid and liquid wastages and use of gill-net by the fishermen for the decrease in number.

The researchers laid emphasis on awareness among the locals and coordination among the agencies concerned including Department of Environment, Fisheries, Forest and local administration for an end to the death of the mammals.