Fisheries

Crab Industry at Odds with Warming Waters

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But as rising ocean temperatures threaten to make fishery closures routine, it will be even harder to count on crab for holiday meals—or livelihoods. Over the past decade, warming sea waters have produced harmful algal blooms that contaminate crab meat with domoic acid, a neurotoxin that can cause seizures, memory loss and other serious symptoms and has been blamed for poisoning and stranding scores of sea lions in California every year. State officials delayed three out of the last six crab seasons to protect public health after an unprecedented multiyear marine heat wave, dubbed “the blob,” hit the north Pacific Ocean in 2013.

Marine Heatwaves to Grow in Intensity

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“We know marine heatwaves are on the rise globally, but policymakers, fisheries experts, aquaculture industries and ecologists need to know how this will play out at regional levels, especially in terms of where they will occur and how much hotter they will be,” said lead author from the ARC Center of Excellence for Climate Extremes Dr. Hakase Hayashida.

Australian Waters Eyed by Foreign Fishing Interests

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The report says foreign fishing vessels are looking to Australia after stocks elsewhere have been depleted by overfishing. “Australian waters are now in their sights,” the report author Chris Smyth said.

“Fishing regulations notionally prohibit the entry of foreign fishing vessels, but this has not stopped the approval of foreign super trawlers to fish in Australian waters.”

“Marine animals are disappearing at double the rate of land-based species”

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…marine animals like fish, crabs and lobster are already more likely to be living near the threshold of life-threatening temperatures, and because in the ocean, there are fewer places to hide from extreme heat, said Malin Pinsky, lead author of a new study published Wednesday in the journal Nature.

“These results are stunning, in part because the impacts of climate change on ocean life were virtually ignored just a decade ago,” said Pinsky, an ocean researcher at Rutgers University. The study took a close look at cold-blooded marine species whose body temperatures are dependent on their surroundings.

“…something’s off-kilter around the Bering Strait…”

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n February, southwest winds brought warm air and turned thin sea ice into “snow cone ice” that melted or blew off. When a storm pounded Norton Sound, water on Feb. 12 surged up the Yukon River and into Kotlik, flooding low-lying homes. Lifelong resident Philomena Keyes, 37, awoke to knee-deep water outside her house.

“This is the first I experienced in my life, a flood that happened in the winter, in February,” Keyes said in a phone interview.

Catch Limits Set on Atlantic Herring

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Herring are important economically because they serve as key bait for the lobster and tuna industries. They’re also used as food for human consumption. But perhaps most important, the fish is a critical part of the marine ecosystem because it serves as food for whales, seals and large fish.