Dolphins deaths mystery persists
ENN/Agencies
Andnetwork .com
African News Dimension
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Kendwa (Zanzibar):
Preliminary investigations have failed to yield an explanation of why hundreds of dolphins left their deep offshore habitat, got stranded in shallow waters and later washed up dead on Zanzibar's northern coast, a scientist said.
"It is a mystery," Narriman Jiddawi, a marine biologist at the Institute of Marine Science of the University of Dar es Salaam, said after studying tissue samples and the remains of some of the 400 common bottleneck dolphins.
Dolphin carcasses washed up Friday along a 2.5-mile stretch between Kendwa and Nungwi beaches. The dolphins had no bruises to indicate they had been entangled in fishing nets, Jiddawi said.
A U.S. Navy task force patrols the coast of East Africa in counterterrorism operations. A Navy spokesman ruled out the possibility Navy sonar might have disoriented the dolphins and led to their deaths. He said there were no U.S. Navy vessels within 580 miles of the location in the 48 hours before it happened.
Scientists said they were mystified by the mass deaths.
Preliminary examination of their stomachs indicated the dolphins had either not eaten for a long time or had vomited severely. Their general condition, however, showed that they had not starved, she said.
Experts planned to further examine the dolphins' stomachs for traces of poison, including from the toxic "red tides" of algae.
May 07, 2006
ENN/Agencies
Andnetwork .com
African News Dimension
_________________
Kendwa (Zanzibar):
Preliminary investigations have failed to yield an explanation of why hundreds of dolphins left their deep offshore habitat, got stranded in shallow waters and later washed up dead on Zanzibar's northern coast, a scientist said.
"It is a mystery," Narriman Jiddawi, a marine biologist at the Institute of Marine Science of the University of Dar es Salaam, said after studying tissue samples and the remains of some of the 400 common bottleneck dolphins.
Dolphin carcasses washed up Friday along a 2.5-mile stretch between Kendwa and Nungwi beaches. The dolphins had no bruises to indicate they had been entangled in fishing nets, Jiddawi said.
A U.S. Navy task force patrols the coast of East Africa in counterterrorism operations. A Navy spokesman ruled out the possibility Navy sonar might have disoriented the dolphins and led to their deaths. He said there were no U.S. Navy vessels within 580 miles of the location in the 48 hours before it happened.
Scientists said they were mystified by the mass deaths.
Preliminary examination of their stomachs indicated the dolphins had either not eaten for a long time or had vomited severely. Their general condition, however, showed that they had not starved, she said.
Experts planned to further examine the dolphins' stomachs for traces of poison, including from the toxic "red tides" of algae.
May 07, 2006
