Spike in Gray Whale Deaths Alarms Scientists in San Francisco Bay Area
San Francisco, CA:The recent deaths of **six gray whales in the San Francisco Bay Area within a single week** have raised significant concerns among marine scientists, bringing the **total whale fatalities in 2025 to 15**, including **14 gray whales and one minke whale**.
According to the **California Academy of Sciences** and the **Marine Mammal Center**, necropsy investigations into the deaths from **May 21 to May 28** have proven difficult due to some carcasses being **inaccessible or badly decomposed**.
Preliminary findings suggest that **three of the gray whale deaths** were likely caused by **vessel strikes**, highlighting ongoing concerns about the impact of marine traffic on whale populations.
An **unusual increase in gray whale sightings** has been recorded in San Francisco Bay this year, with **33 individuals confirmed so far in 2025**, compared to only six in 2024. Experts note that around **one-third of these whales stayed in the bay for at least 20 days**, with body conditions ranging from **healthy to emaciated**.
Marine biologists are pointing to **climate change and food scarcity** as likely drivers of this trend, as gray whales increasingly venture into **unfamiliar or risky territories** in search of nourishment. From **2019 to 2023**, the **gray whale population dropped by approximately 45%**, and a **decline in calf births** has been observed in Southern California this year.
In response, authorities have **advised ship crews and boaters to remain vigilant** and **reduce speeds** in areas with known whale activity. Efforts are also underway to **adjust ferry routes** and **enhance monitoring** of whale movements to prevent further casualties.
Scientists emphasize the urgency of protecting these marine giants as part of broader efforts to address **ecosystem imbalances and ocean health** amid a changing climate.
