Posted by: The ocean update | July 23, 2015

Banned Chemical Pollutants causing Breeding problems in Porpoises and protected-whales (UK)

Sib. : this porpoise is bleeding from the eyes. Acoustic trama (sonar, blasting) ? Image credit Marine Environmental Monitoring

Sib. : this porpoise is bleeding from the eyes. Acoustic trama (sonar, blasting) ?
Image credit Marine Environmental Monitoring

July 23rd, 2015 (Natalia Hall). As per researchers, banned chemical pollutants have been causing breeding problem in porpoises and protected-dolphins. The leading scientists have found high amount of polychlorinated biphenyls (PCBs) in the body fat of 329 harbor porpoises on UK beaches.

The researchers have especially pointed out that Cardigan Bay’s dolphin population is especially at greater risk. Director of the Sea Watch Foundation Dr Peter Evans was of the view that in comparison to porpoises, such chemical pollutants are present in higher amount in bottlenose dolphins.

The scientists think that the chemical, which has been banned in the UK for more than three decades, may be responsible for many stillbirths, miscarriages and instantaneous abortions. The experts affirmed that around a fifth of the sexually mature female porpoises have the signs of reproductive failure. Also, additional 16.5% were found to be having infections or tumors in reproductive organs.

Citation : Murphy S, Barber JL, Learmonth JA, Read FL, Deaville R, Perkins MW, et al. (2015). Reproductive Failure in UK Harbour Porpoises Phocoena phocoena: Legacy of Pollutant Exposure ? PLoS ONE 10(7): e0131085. doi:10.1371/journal.pone.0131085

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