Sharp-eyed whale watch crews helped trained responders in freeing an entangled humpback whale off Monterey Bay after more than a month tangled in fishing gear.
Freeing an entangled humpback whale took teamwork between whale watch operators and a trained rescue crew in Monterey Bay, California. The whale had dragged commercial Dungeness crab gear for over a month. Local captains and naturalists spotted it repeatedly and shared photos that guided the rescue.
The nonprofit Marine Life Studies leads the region’s Whale Entanglement Team. Founder Peggy Stap credited whale watch crews for their consistent support during trainings and community events. Their quick reporting made the eventual rescue possible.
Crews first photographed the whale trailing ropes and buoys in late May, marking the earliest sign that freeing an entangled humpback whale would soon become necessary. The gear’s black and purple markings identified it as Dungeness crab equipment. California added these color codes to help responders trace entangled gear back to its source fishery.
Humpback entanglements off the West Coast have climbed since 2014, when ocean heatwaves reshaped coastal waters. Warmer conditions pushed prey closer to shore, and whales followed. That overlap places more whales near crab trap lines each season.
Poor weather delayed the first response attempt in May. Whale watchers spotted the same whale again in late June and shared new photos. Researchers matched the images to a known individual nicknamed “The Duchess of Anchovy” through an online whale identification database called Happywhale.
The photos let scientists track how the entanglement affected the whale’s body over time. Rope had cut deeply into its tail and flukes. Left untreated, the wounds posed a serious threat to the whale’s life.
On July 10, an early whale watch trip spotted the humpback among several other humpbacks near Moss Landing. The crew guided a response vessel, the R/V Current’Sea, to the site. Responder Stephanie Marcos took additional photos to document the entanglement, then threw a grappling hook to attach a satellite tracking buoy to the trailing lines.
That tracker let the team follow the whale overnight through fog and rough seas. A team member from The Marine Mammal Center piloted a drone the next morning to confirm the ropes had not shifted. The rescue effort also drew support from Moss Landing Marine Laboratories, the West Coast Large Whale Entanglement Response Network, and the California Department of Fish and Wildlife.
Experts had already agreed on a plan the night before. They would use the trailing line to approach the whale safely from behind. Only trained and authorized responders may attempt this kind of delicate rescue.
The whale reacted as if it were evading a predator, diving and speeding away. Responders attached five large floating buoys to the line to slow it down. Working carefully and methodically protected both the whale and the rescue team.
The crew eventually pulled close enough to inspect the entanglement with an underwater camera. They had traveled roughly 14 miles offshore by then, with the larger vessel following behind. Using a knife fixed to a long pole, they made three careful cuts at specific points in the lines.
Nothing happened at first, and the disappointed team considered removing their gear and returning the next day. Then, as they moved up the working line, it gave a small pop, and the rest of the rope slowly fell away.
Freeing an entangled humpback whale came down to three careful knife cuts 14 miles offshore, as a taut line gave a small pop and the crab gear slowly fell away from the exhausted animal. Photo by Marine Life Studies, courtesy of NOAA Fisheries.
The freed whale sped off, wanting nothing more to do with the boats nearby. Rising winds meant the team finished just in time. The recovered gear carried a tag from the most recent 2025–26 Dungeness crab season.
NOAA Fisheries is now working with California wildlife officials to interview the gear’s owner. That conversation could reveal when and where the trap was set. The lessons learned from freeing an entangled humpback whale may help prevent future entanglements in the same waters.
Whale watch crews spotted the same humpback near Moss Landing again the next day. They photographed it feeding alongside other humpbacks that evening. Ongoing sightings will let researchers track the whale’s recovery and body condition over time.
This rescue shows how much everyday ocean observers can contribute to saving marine life. Whale watch operators are not scientists, yet their photos supplied crucial evidence toward freeing an entangled humpback whale. Their partnership with trained responders turned a dangerous situation into a rescue story.
Freeing an entangled humpback whale required patience, coordination, and specialized skill. It also depended on ordinary people who cared enough to watch closely and share what they saw. That combination offers a hopeful model for protecting whales from other growing threats along busy coastlines.
Marine mammal experts continue to note that only qualified responders should attempt to help an entangled whale, since untrained attempts can endanger both people and animals. Their guidance could shape smarter fishing gear and safer seasonal rules going forward. For now, this humpback’s recovery stands as proof that collaboration works.
