The California Department of Fish and Wildlife just announced a marine warden discovered an endangered Pacific leatherback sea turtle dead, drowned by old crab-fishing gear left off the Farralon Islands near San Francisco.

Today, the agency's Dungeness Crab Fishing Gear Working Group is meeting to discuss how to respond.

Geoff Shester, California campaign director and senior scientist for Oceana, said sea turtles and whales can get trapped in vertical ropes extending from a buoy on the water's surface to the trap on the ocean floor.

"When they do encounter something like a rope, they often spin around in circles and kind of do some twists to try to get unwrapped," Shester explained. "But unfortunately, they start to panic and can even get more entangled. The rope was wrapped around it. So, it was essentially pinned and was underwater, so then, it couldn't get to the surface to breathe or escape."

This year's crab fishing season has already been delayed twice and now could be pushed into the new year. Federal research shows Pacific leatherback sea turtles have declined off California by 90% over the last 30 years and are at risk of going extinct due to gear entanglements, loss of nesting habitat and poaching.

Shester wants the state to approve newer, ropeless pop-up gear which can sit on the ocean floor until the fishing crew returns.

"We're calling on the California Department of Fish and Wildlife to strengthen those rules, both for lost gear and also to authorize the use of pop-up gear," Shester emphasized. "So that there are more options for fishermen to stay on the water and fish in a whale- and turtle-safe method."

The state estimates Dungeness crab fishing crews lose between 7,000 and 14,000 traps each fishing season, and fewer than 5% are retrieved.

A new marine national monument in the Atlantic Ocean aims to protect one of the most biodiverse spots on the planet from overfishing.

Located 130 miles off Cape Cod, the area spans more than 3 million acres and is part of the Biden administration's plan to conserve at least 30% of U.S. lands and waters by 2030.

Keith Shannon, Northeast chief of public affairs for the U.S. Fish and Wildlife Service, called the monument a "living laboratory" of pristine ocean habitat.

"Dolphins, multiple whale species and sea turtles and seabirds," Shannon outlined. "It's considered the Serengeti of the sea. There's so much wildlife out there."

Officially called the Northeast Canyons and Seamounts Marine National Monument, Shannon said it contains areas deeper than the Grand Canyon and taller than the Rocky Mountains, and will be safeguarded for years to come.

Debate over how to manage this vast marine environment has been ongoing. Former President Donald Trump lifted restrictions on commercial fishing in the monument area in 2020. The Biden administration reestablished protections one year later, in a move praised by environmental groups and condemned by fishermen, who said it would put more people out of work.

Shannon pointed out the new monument management plan helps ensure the unique area is protected from the harms of overfishing while the larger ocean ecosystem benefits.

"That should allow for species that are fished to come into the monument waters, breed and create more species in the areas outside the monument," Shannon explained.

The monument contains an abundance of phytoplankton, fish, squid and shrimp that serve as vital links in the marine food chain. New federal data show while some recent progress has been made in rebuilding fish stock in U.S. waters, nearly 50 species including Atlantic cod and mackerel remain overfished.

The public comment period is now open on California's new framework for deciding which managed areas within coastal waters meet the definition of "conserved," and where protection improvements need to be made.

California's goal is to preserve 30% of state lands and waters by 2030. The Ocean Protection Council released science-based guidelines this week on what counts as "conserved."

"An area is considered a conservation area if the lands and coastal waters are durably protected and managed to sustain functional ecosystems, both intact and restored, and the diversity of life that they support," said Jos Hill, project director at the Pew Charitable Trusts.

People can weigh in on the process at a series of upcoming workshops in Arcata, Monterey and San Diego. The Ocean Protection Council will also hold two webinars this summer and will accept feedback by email.

Hill said the new framework will be used by the state to evaluate protections in marine-managed areas. The state's "30-by-30" policy sets goals to improve biodiversity, public access and climate resilience.

"The stakes of failing to protect nature are high, and the loss of biodiversity undermines the ability of ecosystems to function and support a healthy environment," Hill said. "And this is particularly important in a changing climate, in which loss of biodiversity reduces nature's resilience to change."

The evaluation criteria will be finalized in the fall and the preliminary decision on which places qualify as conservation areas will be presented in December.

Support for this reporting was provided by The Pew Charitable Trusts.

Groups in Connecticut are preparing to celebrate World Fish Migration Day on Friday.

The biennial event celebrates migratory fish species and their importance. It also highlights challenges these species face, such as climate change. Warming waters make it harder for them to survive.

Rhea Drozdenko, a river steward with the Connecticut River Conservancy, noted that planting trees on river banks can reduce water temperatures. She said dams also pose a challenge for fish.

"They are essentially blocking off a river," she said, "so fish that might have historically been able to go far north, up through our watershed, now that there's dams there, they are now blocked. And so, now they have smaller and smaller habitats at their disposal."

She said conservation groups advocate for safer passage with fish ladders and fish elevators at the dams. Another way is removing so-called "deadbeat dams" that no longer serve an economic use and impede fish migration.

More information about events and getting involved is online at worldfishmigrationday.com.

Habitat neglect is another problem for migratory fish species. Steve Gephard, a Connecticut River Salmon Association board member, said he has found that if the habitat isn't suitable, migratory fish won't prosper. He said work is being done to restore important habitat areas.

"In some cases, it means putting rocks back in, putting woody debris back in, revegetating the flood plain, putting some curvature in the stream," he said. "A lot of streams, as they've gone through human areas, have been channelized."

Some habitats get degraded through industrialization and by clear-cutting forests. Data show hundreds of miles of fish passageway reopened between 1999 and 2018. If pathways for fish migration open up by removing dams, Gephard said, environmental groups have to ensure healthy habitat is there for these fish to return to.