Saving Seafood

Warming seas could wipe out Snake River chinook by 2060, scientists predict

February 19, 2021 — Snake River spring-summer chinook could be nearly extinct by 2060 and interventions are “desperately needed” to boost survival in every stage of their lives, scientists warn.

The findings, published Thursday in the journal Communications Biology, modeled survival of eight populations of wild Snake River Basin spring-summer chinook during the ocean phase of their life, under various climate-warming scenarios.

Salmon hatch in rivers, but mature for years at sea before they return to the waters of their birth. It is a perilous life cycle that could become all but impossible for some already fragile salmon populations that make one of the most arduous of all journeys, all the way to Idaho. They travel more than 1,800 miles round trip, climb more than a mile in elevation, and tackle eight dams, each way: four on the main stem Columbia, then four more on the Lower Snake River.

Add just a little ocean warming, and it’s curtains. Populations declined in all eight basin chinook populations for which the scientists ran predictions. Just a little more than 1 degree Celsius temperature increase in sea-surface temperature produced dire effects — with mortality as high as 90% in warmer seas.

Read the full story at The Seattle Times

Washington state salmon report offers warning to Alaska

February 17, 2021 — A report on Washington state’s dwindling wild salmon populations offers a warning to Alaska, where several stocks have registered concerning declines over the past years.

Washington’s 2020 State of the Salmon in Watersheds report chronicled a bleak panorama, with 14 of the state’s species listed as endangered. While conversation efforts have succeeded in revitalizing some salmon runs in Washington, the report said fish stocks in the Pacific Northwest face an uphill battle.

Read the full story at Seafood Source

Climate change challenges trout industry in North Carolina

February 17, 2021 — Raising trout in Western North Carolina is a time- and labor-intensive process, and the growing threat of climate change only worsens the situation, creating difficulties for hatcheries and recreational fisherman.

Producing trout even in optimal conditions is challenging. “It’s 35 seasons of disaster,” joked Adam Moticak, superintendent of the N.C. Wildlife Resources Commission’s Bobby N. Setzer State Fish Hatchery in Brevard.

The Setzer facility, one of three cold-water trout hatcheries run by the state’s Wildlife Resources Commission, raises fish to support the booming sport fishing industry in Western North Carolina, a $383 million venture in 2014 that supported more than 3,500 jobs.

But sport fishing is only one part of the North Carolina trout industry affected by climate change. Farmers who raise fish to sell to restaurants and retailers, fishing guides who make their living on the water and conservationists who look for wild trout as indicators of a healthy ecosystem face mounting concerns about climate change.

While Idaho leads the country in trout production with 40 million pounds of fish a year, North Carolina ranks second, producing 5 million pounds of trout annually. Climate change threatens the economic state of this thriving industry.

Read the full story at the Carolina Public Press

Rising water temperatures could be a death sentence for Pacific salmon

February 12, 2021 — In the Pacific Northwest, several species of salmon are in danger of extinction. The Washington State Recreation and Conservation Office has released a report on the state of salmon populations in the state’s watersheds—and the findings predict a grim future.

The report was commissioned by the Governor’s Salmon Recovery Office, established by the state legislature in 1998 in response to the Salmon Recovery Planning Act. Its findings showed that 10 to 14 species of  in the northwest are “threatened or endangered,” and five species are “in crisis.”

The findings, though alarming, are in line with population trends over the last few decades. The once prolific salmon populations in Washington State have been declining for years, and populations are now estimated to be at about 5% of historic highs.

The five species of salmon and steelhead that the report found to be most at risk are Snake River spring/summer chinook, Puget Sound chinook, Lake Ozette sockeye, Upper Columbia River spring chinook, and Puget Sound steelhead—a sampling that covers a wide geographic area in the state.

Read the full story at PHYS.org

MASSACHUSETTS: Panel: ocean acidification threatens shellfish sector

February 12, 2021 — As a result of climate change and direct human factors, the waters of the Atlantic Ocean off Massachusetts are becoming more acidic, making them a less friendly habitat for the shellfish that drive a key industry here.

With no action, many of the scallops, clams, mollusks and lobsters at the bottom of the ocean in the Gulf of Maine will begin to dissolve by 2060 and new ones will struggle to form, imperiling an industry that supports thousands of people in the Bay State, a special commission said in a report Tuesday.

The Special Legislative Commission on Ocean Acidification recommended that Massachusetts establish a broad ocean acidification monitoring system and funnel more money into existing programs that address some of the things that are making the ocean more acidic, like residential and agricultural runoff, septic discharges and the deterioration of natural wetlands.

Read the full story at Wicked Local

MASSACHUSETTS: Report: Shellfish industry under threat as oceans grow more acidic

February 11, 2021 — Carbon emissions and wastewater are making the ocean more acidic, an accelerating chemical reaction that could threaten the ability of young scallops, oysters and lobsters to survive to maturity, according to a report published by the Massachusetts legislature on Tuesday.

A coalition of scientists, conservationists and representatives from the seafood industry found that a third of mollusks could be wiped out within 80 years if ocean waters continue to acidify at current rates. The effect on lobsters and crabs is less clear, though they are suspected to be more resilient.

“We’re running out of time before the consequences of ocean acidification become truly catastrophic,” said State Rep. Dylan Fernandes, a Democrat from Cape Cod who co-founded the coalition.

The group’s 84-page report says that oceans have been acidifying since the industrial revolution by soaking up excess carbon dioxide in the atmosphere. When the gas dissolves, it triggers a chain reaction that raises acidity and saps the ocean of carbonate ions that shellfish use to grow their shells, making them more vulnerable to predators and bruising waves.

It’s hardly the first time scientists have predicted doom for New England’s seafood industry, but the report found rising ocean acidity is threatening scallops, the very species that fishermen in New Bedford and other nearby ports turned to to survive an earlier ecological catastrophe: the overfishing of cod.

Read the full story at The Public’s Radio

MASSACHUSETTS: Panel: Ocean acidification threatens lucrative shellfish sector

February 10, 2021 — As a result of climate change and direct human factors, the waters of the Atlantic Ocean off Massachusetts are becoming more acidic, making them a less friendly habitat for the shellfish that drive a key industry here.

With no action, many of the scallops, clams, mollusks and lobsters at the bottom of the ocean in the Gulf of Maine will begin to dissolve by 2060 and new ones will struggle to form, imperiling an industry that supports thousands of people in the Bay State, a special commission said in a report Tuesday.

The Special Legislative Commission on Ocean Acidification recommended that Massachusetts establish a broad ocean acidification monitoring system and funnel more money into existing programs that address some of the things that are making the ocean more acidic, like residential and agricultural runoff, septic discharges and the deterioration of natural wetlands.

“Ocean acidification poses a serious threat to the Massachusetts state economy, and a potentially existential threat to coastal economies that rely heavily on shellfishing,” the commission wrote in the conclusions of its report. “Massachusetts should act to combat ocean acidification now, rather than later. Ocean acidification is expected to worsen significantly before the end of the century. Actions taken now will ultimately be more cost-effective and valuable than actions taken when significant damage has already occurred.”

Global carbon dioxide emissions absorbed by the ocean and nutrient pollution of waterways drive the pH level of areas of the ocean down, making the waters more acidic and limiting certain ions that help clams, oysters, scallops, mussels and lobsters form their protective shells.

Read the full story at WHDH

Maine Startup Aims To Pull Carbon Out Of The Atmosphere By Growing — And Then Sinking — Kelp Farms

February 10, 2021 — The fight against climate change has long focused on scaling back humanity’s emissions of planet-warming carbon-dioxide. But a movement is growing to think bigger and find ways to actually pull existing CO2 out of the air and lock it up somewhere safe.

One Maine startup has an innovative approach that’s drawing attention from scientists and investors: grow massive amounts of seaweed and then bury it at the bottom of the deepest sea, where it will sequester carbon for thousands of years.

On a fishing boat a few miles out in the Gulf of Maine, Capt. Rob Odlin and Adam Rich are tossing buoys into the water. Each is tethered to a rope entwined with tiny seeds of kelp, a fast-growing seaweed.

“We’re just fishing for carbon now, and kelp’s the net,” Odlin says.

Read the full story at Maine Public

NFI’s Robert DeHaan: Action on climate change, COVID, multilateralism will guide Biden’s first months

February 10, 2021 — Just before Joseph Biden was sworn in as president of the United States a month ago, his chief of staff, Ronald Klain, laid out the obstacles ahead for the administration.

“We face four overlapping and compounding crises: the COVID-19 crisis, the resulting economic crisis, the climate crisis, and a racial equity crisis,” Klain wrote in a memorandum issued to staff on 16 January.

Read the full story at Seafood Source

The Serious Health Risks of a Polluted Ocean

February 8, 2021 — Ocean pollution is widespread, worsening, and poses a clear and present danger to human health and wellbeing. But the extent of this danger has not been widely comprehended – until now. Our recent study provides the first comprehensive assessment of the impacts of ocean pollution on human health.

Ocean pollution is a complex mixture of toxic metals, plastics, manufactured chemicals, petroleum, urban and industrial wastes, pesticides, fertilisers, pharmaceutical chemicals, agricultural runoff, and sewage. More than 80 percent arises from land-based sources and it reaches the oceans through rivers, runoff, deposition from the atmosphere – where airborne pollutants are washed into the ocean by rain and snow – and direct dumping, such as pollution from waste water treatment plants and discarded waste. Ocean pollution is heaviest near the coasts and most highly concentrated along the coastlines of low-income and middle-income countries.

Ocean pollution can also be found far beyond national jurisdictions in the open oceans, the deepest oceanic trenches, and on the shores of remote islands. Ocean pollution knows no borders.

Read the full story at The Maritime Executive