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  PlanetSave 29 Jun 06
Baby gray whale births rebounding on Pacific Coast
Written by AP

SAN FRANCISCO (AP) _ The number of gray whales born along the Pacific Coast has rebounded from record low levels, suggesting that pregnant females are thriving despite a warming Arctic feeding environment, federal biologists said.

The number of calves that passed Point Piedras Blancas near San Luis Obispo jumped from 945 last year to 1,018 calves in 2006, the National Oceanic and Atmospheric Administration said. Fewer than 300 of the 3-month-olds were spotted in 2000 and 2001.

The whales have traditionally migrated to summer feeding grounds in the northern Bering Sea, but have been forced farther north in recent years because warming air and water has reduced the population of its favored prey, the fatty amphipod.

In 1999, about 270 whales washed up dead or dying on the Pacific Coast, some severely malnourished, according to NOAA.

But the whales appear to have taken advantage of melted polar sea ice, discovering new routes to food and finding enough crustaceans in the mud to nourish pregnant females, scientists said.
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