LIMA, Peru - Peru's government declared a health alert along its northern coastline on Saturday and urged residents and tourists alike to stay away from long stretches of beach, as it investigates the unexplained deaths of hundreds of dolphins and pelicans.
At least 1,200 birds, mostly pelicans, washed up dead along a stretch of Peru's northern Pacific coastline in recent weeks, health officials said, after an estimated 800 dolphins died in the same area in recent months.
Investigators believe an increase in usual ocean temperatures have driven a type of anchovy deeper into the sea, beyond the reach of many young pelicans – ultimately causing their deaths.
But Peruvian scientists studying the deaths of dolphins and porpoises from early February to mid-April say it remains a mystery, due in part to the government's slowness in investigating the phenomenon.
Authorities were so late in gathering tissues from the mammals that crucial clues were likely lost, said the scientist heading the dolphin death probe, Armando Hung, head of the molecular biology lab at Cayetano Heredia University.
At the same time, local officials have been so slow in removing carcases that the Health Ministry urged the public last weekend to stay away from beaches from Lima, the coastal capital, northward, though it did not identify any specific health issue.
Up and down the coast, disoriented pelicans have been seen standing on beaches where they don't normally alight. Some have even been seen walking along coastal roadways.
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