CHANNEL ISLANDS, Calif. — Strands of kelp glow in the dim morning light off California's Channel Islands as fish and sea lions weave through the golden fronds. It's a scene of remarkable abundance — the result of more than two decades of protection in one of the state's oldest marine reserves.
But farther out in the Pacific, life in the vast Pacific Remote Islands Marine National Monument faces a very different future. The Trump administration has moved to reopen 500,000 square miles (about 1.3 million square kilometers) of previously protected waters there to commercial fishing, in a dramatic rollback of federal ocean protections.
California, meanwhile, may be headed in the opposite direction. As it undertakes its first 10-year review of its marine protected area network, state officials, scientists, tribal leaders and environmental advocates are pushing not just to maintain protections but to expand them.
''These areas are like our underwater Yellowstone,'' said Douglas McCauley, director of the Benioff Ocean Science Laboratory at the University of California, Santa Barbara, speaking aboard a dive boat heading to the Channel Islands. ''It's important to protect that biological heritage, but it also creates an extremely lucrative tourism industry. People want to go see all that nature and wildlife in action.''
The state's marine protected areas have become magnets for scuba divers and snorkelers drawn by their rich life. Over time, these reserves allow fish populations to rebound and spill over into nearby waters – a long-term investment with large returns for fishermen, as McCauley sees it.
Launched in 2003, the network now spans 124 distinct sections along the coast. Some areas are ''no-take'' zones where all fishing is prohibited, while others allow limited use. The network covers roughly 16% of state waters, with proposed expansions that would add 2%. The goal, under the 1999 Marine Life Protection Act, was to create a science-based system to rebuild ecosystems after decades of overfishing and habitat loss.
The Channel Islands were among the first sites established. About 20% of the waters surrounding the eight-island chain are now fully protected.
But expansion proposals have sparked debate among fishermen.