Hector's dolphins living off the
coast of Christchurch, New Zealand have benefitted from the area's special
designation, say scientists.
Researchers studied the animals, one of the world's most endangered species
of dolphin, for 21 years.
Their results show that the survival rate of the dolphins has increased by
5.4% since the Marine Protection Area (MPA) was declared.
The findings are published in the Journal of Applied Ecology.
"This is the first evidence that Marine Protected Areas can be effective for
marine mammals. We found a significant improvement in the survival rate," said
Dr Liz Slooten from the University of Otago who undertook the research.
In 1988 the Banks Peninsula Marine Mammal Sanctuary was established in the
hope that resident dolphins would be protected from fatalities associated with
the gillnet and trawling activities of the fishing industry.
A team of ecologists conducted regular photo identification of the dolphins
for 21 years, starting two years before the area was officially protected.
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