Gray Whales in San Francisco Bay Face Risks from Ship Strikes
Gray Whales in San Francisco Bay Face Risks from Ship Strikes
US · Published Jun 8, 2026
Gray whales, once rare in San Francisco Bay, are now frequently spotted near Alcatraz Island as they adapt to changing food availability caused by climate change.
These whales, which migrate annually between Mexico and Alaska, are stopping in the bay to feed due to shrinking prey supplies in the Arctic.

Why It's Important?

The increased presence of gray whales in San Francisco Bay poses significant risks to their survival. Ship strikes are a leading cause of death, with blunt force trauma identified in several cases. The gray whale population in the North Pacific has dropped to approximately 13,000, down from 26,000 a decade ago. Malnourishment is another concern, as climate change reduces Arctic prey availability, forcing whales to seek alternative feeding grounds. The loss of even a few individuals has a substantial impact on the species' recovery, highlighting the urgency of mitigating these risks.

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