Researchers are observing a troubling increase in gray whale sightings and deaths in San Francisco Bay, raising concerns about climate change’s impact on these marine mammals. Dr. Matthew Savoca from Stanford University links the issue to Arctic climate changes affecting the food chain for gray whales, which migrate from the North Pole to Mexico.
The melting Arctic ice may be disrupting the whales’ access to suitable feeding grounds. Detailed observations revealed that while certain years saw a spike in gray whale numbers, others showed few sightings and fatalities. Giancarlo Rulli from the Marine Mammal Center notes the complexity of the situation, as the number of whales fluctuated dramatically over recent years.
Additionally, melting ice could explain the reappearance of gray whales along the U.S. East Coast, a significant development given their historical absence due to hunting. Researchers are piecing together data from Alaska to Baja, indicating that rapid Arctic warming poses new challenges for tracking and sustaining whale populations.
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