Saving Seafood

Salmon travel deep into the Pacific. As it warms, many ‘don’t come back.’

March 30, 2022 — During a typical fall, almost a million chum salmon pour into Alaska’s Yukon River, a torrent of wild fish that has sustained the economy and Indigenous culture in the far north for generations. Last year, that run collapsed, with salmon trickling upstream at a 10th of normal levels, forcing the state to airlift frozen fish from other regions to feed the population.

About 400 miles to the south, in Bristol Bay, the world’s largest sockeye salmon fishery set a record last year, with more than 66 million salmon returning to the rivers in the watershed. That total is expected to be broken again this year.

Salmon in the Pacific Ocean face dramatically different fates from one river system to the next. As the planet warms, driven by the burning of fossil fuels, scientists say changes in ocean conditions are helping drive these wild swings and collapses of key stocks. These North Pacific fish account for most of the world’s wild-caught salmon, and their survival has implications for economies and cultures around the Pacific Rim.

During her three decades as a government scientist, as climate change has intensified, Laurie Weitkamp has watched these fluctuations in salmon numbers become bigger and the models that predict how many salmon will return from sea become more unreliable.

“Salmon will go out, in what we think is a really good ocean, and then it collapses,” said Weitkamp, a fisheries biologist with the National Oceanographic and Atmospheric Administration based in Oregon. “They don’t come back.”

Read the full story at The Washington Post

UNC Researchers: Climate change causing fish migration

March 30, 2022 — The University of North Carolina Institute of Marine Sciences says climate change is threatening the fishing industry, which contributes close to $300 million to the economy in North Carolina.

Marine researchers say climate change is continuing to impact the environment along the coast and is now impacting the amount of fish in the water here in the east.

University of North Carolina’s Marine Sciences college in Morehead City has conducted research into the decrease in the number of fish.

Dr. Janet Nye, Associate Professor at the Institute of Marine Sciences, has been studying water temperatures and how it impacts fish along North Carolina’s Coast.

Nye says the increase in temperatures has caused flounder and grouper numbers to decrease.

Read the full story at WITN

NOAA report highlights 2021 climate, weather, ocean research

March 29, 2022 — Launching the first ever national rip current forecast model, creating high-resolution sea ice information to improve navigation, and using artificial intelligence to process marine mammal calls: These are just a few of NOAA’s many notable scientific accomplishments from the past year. The newly released 2021 NOAA Science Report includes more than 60 stories that represent a selection of NOAA’s 2021 research and development accomplishments across the range of NOAA’s mission. Some of NOAA’s biggest science accomplishments from 2021 include the following 4 stories:

1. Looking at how climate change could impact West Coast fisheries

The “Future Seas” project is a collaborative effort that uses models to explore potential impacts of climate change on West Coast fisheries and evaluate strategies for managing those impacts. This year, the team of scientists completed detailed projections of West Coast ocean conditions out to the year 2100 and used them to project potential climate-driven changes in the distributions and landings of Pacific sardine and albacore tuna in the California Current System, an ocean current that moves southward along the West Coast of North America. Thanks to the Future Seas project, scientists can now provide  information and advice on climate resilience to West Coast fishing communities, which helps them better prepare for the effects of climate change.

Read the full story from NOAA

2021 was the hottest year on record in the Gulf of Maine, new data show

March 29, 2022 — Scientists say the highest water temperatures ever in the Gulf of Maine were recorded last year.

The Gulf is one of the fastest-warming bodies of water on the planet, and fishermen are noticing signs of the change.

Data released by the Gulf of Maine Research Institute show that last year surface water temperatures in the Gulf were on average a half-degree higher than the previous record, with record highs recorded on 169 days — almost half the year.

The Gulf experienced what scientists now call a “marine heatwave” for the entire year.
“As unusually warm as 2021 was in a historical context, it’s likely to be one of the coolest years we’ll experience going forward, especially if we’re not able to reduce greenhouse gas emission globally,” says the institute’s David Reidmiller.

Reidmiller says the latest data punctuate a decades-long trend that shows no sign of abating.

“The warming trend is unequivocal in the Gulf of Maine. It’s been going on now for decades, and from a climatological sense we are assuredly in a new regime,” Reidmiller says.

Read the full story at Maine Public Radio

MASSACHUSETTS: Offshore wind lease funds seen as potential aid for fishing industry

March 18, 2022 — The Baker administration and the Massachusetts Legislature have been gung-ho about pursuing offshore wind power and preparing the state’s infrastructure to deal with the consequences of climate change, but lawmakers during the week of March 7 impressed upon the administration the importance of keeping the state’s historic fishing industry in mind as well.

“We’ve been taking steps over the past couple of years to make sure that the commonwealth is a leader in the wind industry. However, I’m not insensitive to the fact that some of what we’re doing on wind and with renewables comes to the expense of one of our oldest professions, which is the fishing industry,” Rep. Ann-Margaret Ferrante of Gloucester said March 11 during a hearing on the energy and environment portions of Gov. Charlie Baker’s $48.5 billion fiscal-year 2023 budget bill.

Tension between the commercial fishing industry and offshore wind developers has been a constant thread as the new industry looks to establish its roots in the United States. The Responsible Offshore Development Alliance, among others, has sued federal agencies contending that by approving the Vineyard Wind I project “the United States has shortcut the statutory and regulatory requirements that were enacted to protect our nation’s environmental and natural resources, its industries, and its people.”

Annie Hawkins, executive director of RODA, said the fishing industry supports “strong action on climate change, but not at the expense of the ocean, its inhabitants, and sustainable domestic seafood.” The Massachusetts Seafood Collaborative, a group of seafood harvesters, processors and wholesalers, has come out in stout opposition to the offshore wind bill the House has passed and generally any other Beacon Hill plans to promote and grow the offshore wind industry here.

Read the full story at Wicked Local

The U.N. Treaty That Could Be the Oceans’ Last Great Hope

March 11, 2022 — United Nations member states have tried for years to reach a global agreement that would protect marine life on the high seas—those parts of the world’s oceans that fall beyond the jurisdiction of any individual country.

The endeavor is seen as hugely important for protecting the world’s biodiversity and limiting the impact of climate change. While existing laws and treaties address marine and maritime activities within countries’ jurisdiction, very little extends to the high seas, which include about 95 percent of the world’s oceans in terms of volume.

Member states began discussing the issue in 2004, with delegates meeting every two years. By 2020, the parties appeared to be close to striking a deal, but the outbreak of COVID-19 that year put the talks on ice.

Read the full story and listen to the audio at Foreign Policy

 

Climate change set to upend global fishery agreements, study warns

March 9, 2022 — Unlike boundaries on the land, the ocean is contiguous — fish move and transcend international waters as they please, without bothering about jurisdictions. As long as ocean temperatures remain generally stable, the fish remain in their known habitats and all is well. But as climate change heats up oceans rapidly, fish are on the move, upsetting fishing treaties between nations that stipulate who can catch how much fish in shared waters.

“Many of the fisheries management agreements made to regulate shared stocks were established in past decades, with rules that apply to a world situation that is not the same as today,” Juliano Palacios-Abrantes, a marine biologist at the University of Wisconsin-Madison, said in a press release.

In a recent study, Palacios-Abrantes and his colleagues from Canada, the U.S., U.K. and Switzerland predict that about half of the world’s commercial fish in shared waters will move from their known habitats by the end of the century. Published in the journal Global Change Biology, the study warns of a dramatic change in fish stocks by as early as 2030 that could lead to international disputes in exclusive economic zones, the area within 200 nautical miles (370 kilometers) of a country’s coast where it has exclusive rights for fishing.

By 2030, according to the study, climate change will force 23% of shared fish stocks to move from their historical habitats and migration routes, if nothing is done to halt greenhouse gas emissions. By the end of the century, that number could rise to 45%.

Read the full story at Mongabay

A New Tool May Help Crab Fishers Sidestep Dead Zones

March 9, 2022 — The crab pots are piled high at the fishing docks in Newport, Oregon. Stacks of tire-sized cages fill the parking lot, festooned with colorful buoys and grimy ropes. By this time in July, most commercial fishers have called it a year for Dungeness crab. But not Dave Bailey, the skipper of the 14-meter Morningstar II. The season won’t end for another month, and “demand for fresh, live crab never stops,” Bailey says with a squinting smile and fading Midwestern accent.

It’s a clear morning, and he leads me aboard a white-and-blue crab boat, built in 1967 and owned by Bailey since 1992. He skirts a giant metal tank that he hopes will soon hold a mob of leggy crustaceans and ducks his tall frame into a cluttered cabin, where an age-worn steering wheel gleams beneath the front windows and a fisherman’s prayer hangs on the wall: “Dear God, be good to me. Your sea is so great and my boat is so small.”

The churning Pacific is just one challenge Bailey and his fellow crabbers must face. Recent years have also brought outbreaks of domoic acid, which renders crab unsafe to eat, and increasing incidents of humpback whales getting tangled in crab gear. However, there’s another emerging problem that threatens not only Bailey’s livelihood but the very ecosystem that sustains it. I’ve come today to see a tool that could help crabbers manage.

On the counter in the kitchenette, amid bowls of instant noodles and tinned oysters, Bailey shows me a sturdy black tube, about 60 centimeters long, that fits neatly inside a crab pot. When submerged, the contraption measures oxygen levels in the water and, when retrieved, displays them on a separate box with a screen for Bailey to read. The box also beams the data back to scientists at Oregon State University (OSU).

Most marine animals don’t breathe air, but they need oxygen to live, absorbing it from the water as they swim, burrow, or cling to the seafloor. But lately, bouts of dangerously low oxygen levels—or hypoxia—have afflicted parts of the North American west coast, affecting critters from halibut to sea stars. These “dead zones” cause ecological disruption and economic pain for fishers like Bailey, who can’t sell crabs that have suffocated in their traps.

Read the full story at Smithsonian

 

UN Plastic Pledge Is Bright Spot for Global Climate Diplomacy

March 8, 2022 — As countries buffeted by high energy prices and political infighting at home backslide on climate promises made at the COP26 summit in November, a glimmer of hope for green progress came out of Kenya last week.

At the fifth biennial session of the United Nations Environment Assembly, which met in Nairobi, 175 countries agreed to establish an intergovernmental committee to negotiate a legally binding treaty to tackle the proliferation of plastics.

Plastic is, of course, a global scourge. About 11 million metric tons of plastic waste end up in bodies of water each year, and the UN expects that volume to nearly triple by 2040. Not only do plastics clog oceans with waste, they break down into tiny pieces — microplastics — that threaten human and animal health.

Delegates in Nairobi resolved to cut plastic waste through recycling, sustainable package design, and limiting production of virgin plastics in the first place. Further, they pledged to have a treaty in place by the end of 2024. That’s an extremely fast timeline: Most global treaties take five to 10 years.

Read the full story at Bloomberg

Paper finds hotter, drier conditions negatively impact salmon spawns

March 2, 2022 — A new paper published 15 February in Fisheries Magazine confirms that salmon spawns fared worse in hotter, drier conditions.

The new paper, “Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019,” found salmon had higher spawning success in glacier and snow-fed streams than in rain-fed streams in hot, dry conditions.

Read the full story at SeafoodSource