Gray whale population stressed and declining

National Marine Fisheries Service biologist Wayne Perryman has been studying gray whales for nearly 30 years. He says climate change in Arctic summer feeding grounds is stressing the whales. Perryman takes part in a yearly census of north- and southbound populations, where he says the cows and calves are easy to count from shore.

Lori Townsend, APRN – Anchorage