September 25, 2025 — The number of large whale entanglements in U.S. waters increased steeply in 2024, with California seeing the most of the incidents, a U.S. government report said.
The National Oceanic and Atmospheric Administration issued a report last week documenting 95 large whale entanglements in 2024, compared to 64 in 2023 and well above the historical average of around 71 per year. The majority of the entanglements, 71%, happened off the coast of four states: Alaska, California, Hawaii and Massachusetts, the report said. Of those, 25% occurred off the California coast, primarily in the San Francisco and Monterey Bay Area.
The report said about half of the entanglements, mostly of humpback whales, were directly attributed to commercial or recreational fisheries. Whales become snagged in fishing gear used to catch lobster, crab, and other species, affecting their ability to swim, reproduce, and feed, and often causing death.
Entanglements and vessel strikes are two main causes of whale deaths, according to the NOAA. The agency says that since 2007, at least 922 humpback whales have been maimed or killed by long lines of rope fishermen use to pull up crab cages.