Saving Seafood

Growth in global fish production slows, aquaculture increases

December 8th, 2016 — Growth in global fish production is expected to slow slightly this year, driven primarily by lower catches of major wild species such as Alaska pollock and anchoveta. Production solely from aquaculture continues to increase at a steady rate with a further 5 percent increase in total volume expected in 2016. Driven by higher incomes and urbanization, global consumption of fish is growing at a faster rate than global population, meaning that per capita consumption is rising each year by approximately 1 percent. In 2016, expected per capita consumption is 20.5 kg per year, compared with 20.3 kg in 2015 and 17.6 kg a decade ago in 2006. Another important figure is the proportion of fish produced by the aquaculture sector for human consumption, forecast to reach 53 percent this year, a trend that is only going up in the foreseeable future.

The total value of world trade in seafood products is expected to bounce back this year after a drop in 2015, to US$140 billion, representing a 4.4 percent increase, although this is still well below the 2014 total of US$148.4 billion. This return to growth in value terms is partly due to a stabilization of the US dollar after a sharp increase versus multiple currencies in 2015, but it is also a consequence of improved prices for a number of highly traded seafood commodities. Salmon prices, in particular, have been reaching extreme peaks in 2016, while tuna prices have also risen after a period of sustained lows. Supply constraints are part of the reason for the price gains, but demand growth is also a contributing factor.

Read the full story at Aquafeed.com

Washington’s senators call for salmon, crab fishing seasons to be declared “disasters”

December 7, 2016 — Several commercial fisheries on the U.S. West Coast should be declared disasters, a move that would make federal funds available to those affected by poor fishing seasons, United States senators representing Washington state said.

Democrats Patty Murray and Maria Cantwell called for a declaration of commercial fisheries failures for six pending fishery disaster requests, in a letter to Secretary of Commerce Penny Pritzker.

“Fishing communities up and down Washington’s coast have suffered through several years of lower-than-expected catch. A federal fishery disaster declaration would make communities eligible for funding for projects such as fisheries recovery, job training, and infrastructure investments in the communities hardest hit,” the senators said in a statement.

Washington’s maritime industry supports almost 60,000 jobs directly and contributes USD 30 billion (EUR 28 billion) in economic activity each year, not including the shipbuilders, hotels, restaurants, manufacturers, and outfitters that benefit indirectly, they said. The senators stated that fisheries are also of tremendous significance to the state’s tribal fishermen, who have been harvesting fish on Washington’s coast for thousands of years.

“Prompt declaration of these disasters will help meet the needs of communities struggling as a result of these disasters,” Senators Murray and Cantwell said.

Read the full story at SeafoodSource

Scientists Improve Predictions of How Temperature Affects the Survival of Fish Embryos

December 7, 2016 — The following was released by NOAA:

Scientists closely tracking the survival of endangered Sacramento River salmon faced a puzzle: the same high temperatures that salmon eggs survived in the laboratory appeared to kill many of the eggs in the river.

Now the scientists from NOAA Fisheries and the University of California at Santa Cruz have resolved the puzzle, realizing new insights into how egg size and water flow affect the survival of egg-laying fish. The larger the eggs, they found, the greater the water flow they need to supply them with oxygen and carry away waste.

The results of the study were published in the scientific journal Ecology Letters. NOAA Fisheries is using the findings to improve protection of fish in the Sacramento River.

“Our model, based on a literature search of laboratory studies, predicted that temperatures in the upper Sacramento River since 1996 almost never got warm enough to cause mortality of salmon embryos,” said Benjamin Martin, NOAA Fisheries researcher and lead author of the study. “But data from field studies in the Sacramento River indicated that in some years, temperature-related mortality exceeded 75 percent, for example, in 2014-2015.”

Scientists often use laboratory studies to estimate how species will respond to elevated temperatures. The results from this study reveal that fish may respond to temperature differently in the field than in the lab. Understanding the causes for this difference may help researchers improve their predictions of how temperature affects fish eggs across different environments.

“We wanted to know why these salmon eggs have a much lower thermal tolerance in the field compared to the lab,” said Martin. “We hypothesized that the reason salmon eggs die in the river is because they don’t get enough oxygen.”

External temperatures govern the biological processes of salmon eggs and the embryos inside. As the water gets warmer their metabolism increases, demanding more and more oxygen. Unlike juvenile and adult fish, eggs cannot move and don’t have a developed respiratory or circulatory system. Instead they rely on flowing water to supply oxygen and carry away waste products.

Winter-run Chinook salmon are especially challenged when it comes to warmer water temperatures because their eggs are atypically large and require more oxygen exchange. Their egg size evolved to take advantage of cold water above Shasta Dam where they once spawned. However, the salmon now spawn in the warmer Sacramento River below the dam.

After further analysis of field data, scientists found a fundamental difference between conditions in the laboratory and conditions that effect eggs in the wild.

Laboratory studies estimating the temperature tolerance of the Chinook eggs included water flowing over the eggs at about two to three times faster than salmon eggs typically experience in the wild. The faster moving water provided more oxygen to the eggs in the laboratory, allowing them to survive higher temperatures.

The researchers borrowed concepts from physics to develop a model to determine how much oxygen flowing water can supply to fish eggs, depending on its velocity. The model predicted that the slower flowing water in the river would not supply the oxygen needed for egg viability in elevated temperature conditions. Field studies found that the slower flow in the river equated to about a 3 °C difference in the temperature tolerance of eggs, exactly what the model predicted.

This new model also provides an explanation for why fish species produce larger eggs in colder water. In general, the oxygen demand of eggs is proportional to their volume, while oxygen supply is proportional to the surface area of the egg, where the oxygen diffuses into the egg from the surrounding water. The surface area to volume ratio of an egg decreases with increasing egg size, which sets a limit on how large eggs can be and still get enough oxygen to survive. Since oxygen demand increases with temperature, fish species in warm water must make smaller eggs to match oxygen demand with supply. However this model also predicts that fish can produce larger eggs in warm waters when they are in high flow environments.

The researchers compiled data on 180 fish species and found that eggs in high flow environments, such as rivers, consistently produce larger eggs than expected for a given temperature. Some fish have even adapted to produce larger eggs in warm waters by using their tail to fan water over their eggs, which comes with a significant cost in terms of energy, time and risk of predation.

One important implication of this model is that warming conditions and declines in oxygen levels in aquatic systems may create evolutionary pressure for fish to produce smaller eggs in the future.

NOAA Fisheries has incorporated the new findings into agency guidance regarding the temperatures needed to support endangered Chinook salmon in the Sacramento River.

“This science helps us understand how seemingly small changes in river conditions can make a big difference for the salmon we’re trying to protect,” said Maria Rea, Assistant Regional Administrator for the California Central Valley Office. “This is a reminder that as much as we can learn in the laboratory, we have to always check that against what we see in the wild.”

VOICES OF ALASKA: Alaskans must unite to protect salmon

November 25, 2016 — As commercial, sport and personal use fishermen, we often have passionate disagreements about decisions that must be made regarding the management of our salmon. But today we are uniting as residents of our Nation’s last great salmon state by asking the Alaska Board of Fisheries to take action to protect the fish that is so intimately tied to our identity, culture and economy.

Whether it’s making a living by set netting for wild salmon in Cook Inlet, feeling the thrill of a silver salmon leaping at the end of your line, or experiencing the satisfaction of filling your freezer with salmon that will feed your family all winter; salmon are an essential part of life for so many of us in Alaska.

Unfortunately the primary law that is designed to protect the rivers and streams which salmon rely on hasn’t been updated since statehood and leaves our salmon resource — and the jobs, culture, food, recreation and economic activity it creates – at risk. If we do not take the opportunity now to update this law, we stand to repeat the mistakes that have decimated salmon runs throughout the rest of the country and lose one of the top reasons Alaska is such a special place to call home.

This law is known as “Title 16,” and is Alaska’s fish habitat permitting law. Currently, the law contains only two sentences guiding how decisions are made on development projects that could harm salmon habitat. These projects include proposals like Pebble Mine and Chuitna Coal, where a company proposes strip mining through nearly 14 miles of wild salmon stream.

Read the full op-ed at the Peninsula Clarion

Group releases study on fishing, tourism dollars from Southeast Alaska rivers

November 23, 2016 — Three major rivers that flow out of Canada into Southeast Alaska could provide a combined $1 billion in value for tourism and fisheries on this side of the border over the next three decades.

That’s one findings in a new study commissioned by a group seeking to highlight potential impacts to those rivers from the mining industry in British Columbia.

The study puts some numbers to the arguments that Southeast Alaska fishermen, tour operators, tribal leaders and communities have been making about the importance of the Taku River near Juneau, Stikine near Wrangell and the Unuk north of Ketchikan.

Salmon Beyond Borders commissioned the report, written by the McDowell Group.

Commercial and sport fishing activity along with tourism dollars from the waterways are worth a combined $48 million a year in economic activity including the paychecks for 400 people in Southeast, the study said.

“It’s well known to any of us who live in Southeast Alaska know that salmon and commercial fishing have a substantial impact on our region’s economy and that the visitor industry as well,” said Kirsten Shelton-Walker, project manager with the research and consulting business McDowell Group in Juneau. “And so, we were not surprised but it was interesting to find that the impact of these rivers could be as high as almost $1 billion over a 30-year horizon.”

Read the full story at KTOO

Will Klamath River Salmon Thrive Again After Dams Are Gone?

November 23, 2016 — Year after year, volunteers return to tributaries of the Klamath River, just like the fish they’re trying to help do the same thing.

Jimmy Peterson, a fisheries project coordinator for the Mid-Klamath Watershed Council, places rocks and stones to make fish passages in Fort Goff Creek, 60 miles up from the river’s mouth on California’s North Coast.

“This creek has extremely awesome habitat up top here,” Peterson says. “Extremely awesome.”

Then he translates: “The water stays really cold and there’s plenty of nice spawning gravel that go up fairly far into the watershed. There’s not a lot of human activity up there either, so it’s fairly untouched.”

Scientists estimate that a century ago, hundreds of thousands of coho may have run up the Klamath’s streams and tributaries. Now it’s a few thousand. Federal and private grants fund the council’s work, helping coho access “extremely awesome” habitat because coho are threatened with extinction.

Dams aren’t the only reason salmon, trout and other fish need help on the Klamath. But they are a big one. The promise of dam removal is free passage for fish up to cooler spots and native headwaters. And the Klamath River, near California’s northern border, may become the next big western river to see that happen. Federal energy regulators are considering a plan that would open hundreds of miles of the Klamath to the potential of the largest river restoration in U.S. history.

Read the full story at KQED

New Program Gives Vet Foothold in Fisheries

November 22, 2016 — Barney Boyer’s first few months as a NOAA Fisheries intern have been busy. He has assisted with tracking the return of salmon and forage fish to the Elwha River estuary, surveyed Puget Sound ocean conditions, and begun studying the invasion of non-native fish in the Snohomish River.

Boyer is the first military veteran to take an internship with NOAA Fisheries through a new partnership between Washington’s The next link/button will exit from NWFSC web site Department of Veterans Affairs and The next link/button will exit from NWFSC web site Veterans Conservation Corps, NOAA Fisheries’ West Coast Region, the The next link/button will exit from NWFSC web site NOAA Restoration Center and the Northwest Fisheries Science Center (NWFSC). Boyer is based at the NWFSC’s Mukilteo Research Station, near Everett, where he is assisting with several research projects, including one that may include him as co-author of a peer-reviewed paper.

“It’s really turned out to be an amazing experience so far,” Boyer said. “Every day here is an interesting experience, and I’m learning all the time.”

Casey Rice, director of the Mukilteo Research Station until his unexpected passing earlier this year, was a key advocate of hosting veterans at Mukilteo.

“Casey wanted this to happen and his colleagues have assumed the task of moving it forward,” said John Floberg of the NOAA Restoration Center, who helped coordinate the program. “It’s Casey’s legacy that veterans are now contributing to research at Mukilteo.”

Read the full story at the Fishing Wire

Obama charting course on Pacific fish farming

October 31st, 2016 — OBAMA CHARTING COURSE ON AQUACULTURE IN PACIFIC: The Obama administration is laying the groundwork for permitting fish farming in federal waters in the Pacific Islands for the first time, part of its plan to double aquaculture production in the U.S. by 2020. The National Oceanic and Atmospheric Administration — in partnership with the regional fishery council that manages fish stocks in Hawaii, the Marianas and other islands — intends to conduct an environmental impact study to evaluate where farms should be located. The deadline to comment is today.

While salmon and shellfish have been farmed in state waters for decades, NOAA wants to expand aquaculture further from shore, in order to meet growing demand for seafood as the amount of wild-caught fish has flatlined. The U.S. imports more than 90 percent of what is eaten here, half of which is farmed — a practice that’s resulted in a trade deficit of $11.2 billion. Aquaculture is practiced widely in countries like Norway and China, but has been slow to catch on in the U.S. because of concerns about ocean ecosystems and coastal economies. It took NOAA about 14 years to finalize a framework for the Gulf of Mexico, and when the rule was finally completed in January, the agency was sued by a dozen environmental advocacy and commercial fishing groups.

“Farmed species can escape and alter wild populations, and when you put a lot of fish together in one location, it can harbor disease and spread pollution,” said Marianne Cufone, executive director of the Recirculating Farms Coalition, which advocates for land-based aquaponics. The nonprofit is part of the suit filed against NOAA’s plan for the Gulf; Cufone said she expects a challenge to the Pacific program, if it’s finalized.

Read the full story at Politico 

To Protect Native Culture, Bring Back the Salmon

October 25, 2016 — The people who have lived along the Klamath River for millennia are now facing crisis levels of violence, disease and depression. Diabetes and heart ailments run rampant in their communities, and suicide rates have skyrocketed.

To save his people, Leaf Hillman, Director of the Karuk Tribe’s Department of Natural Resources, believes there is one thing to do: Bring back the salmon.

“We’re salmon people,” says Hillman, a tribe member in his early fifties who lives in the riverside town of Orleans. “Our very identity is based on salmon.”

His tribe, working with the neighboring Yurok and Hupa tribes, has been at the front lines of the political battle to save and restore the Klamath’s dwindling Chinook runs, both by demanding better management of water flowing out of the upstream reservoirs and by calling for removal of four dams that make hundreds of miles of salmon habitat inaccessible. In protests and marches the Klamath basin tribes have often targeted PacifiCorp, which owns the Klamath’s dams. They have crashed company meetings and even dumped bucketfuls of toxic river algae – which thrives in the slow-moving, sun-warmed reservoir water – on the front steps of PacifiCorp’s Portland, Oregon headquarters. They’ve done the same several times at the U.S. Bureau of Reclamation’s Sacramento office.

The tribes, working together as the Klamath Justice Coalition, have also negotiated over dam removal with state and federal agencies, and soon their efforts are going to pay off. The giant concrete barriers, built between World War I and the 1960s, are now slated to be removed – which will certainly go down in the books as one of the greatest environmental and cultural victories in the West.

Salmon, primarily Chinook but also coho, were the core of many California Indians’ nutrition, wealth and culture. For young Karuk boys, catching and killing a Chinook was an important rite of passage, and the villages along the river subsisted on salmon almost all year. Of several seasonal runs of Chinook, the spring run was the most plentiful and important on the Klamath. Using nets and spears, fishermen caught tens of thousands of the big fish, which often weighed more than 40 pounds. Tribes on other river systems along the north coast of California and in the Central Valley were similarly dependent on Chinook salmon.

Read the full story at KCET

Why Is Fish Good for You? Because It Replaces Meat?

October 7, 2016 — Articles often mention that eating any kind of fish (not just fatty fish) twice weekly reduces various health risks. Is this because it replaces red meat, or is there some other reason?

Many fish, especially oily, darker-fleshed fish like salmon and herring, are rich in heart-healthy, polyunsaturated, omega-3 fatty acids, but healthful fats are not the only reason to eat fish. Dietary guidelines in the United States encourage adults to eat eight ounces of a variety of fish and seafood each week – roughly two meals’ worth – because of the “total package of nutrients in fish,” which includes lean protein, vitamins A and D as well as B vitamins, and a host of minerals such as iron, iodine, selenium and zinc.

Women who are pregnant or breast-feeding are urged to eat as much as 12 ounces of seafood to improve infant outcomes, but should steer clear of fish that’s high in methyl mercury. (The Food and Drug Administration recommends avoiding king mackerel, tilefish, shark and swordfish and limiting tuna; the nonprofit Environmental Working Group advises against a broader list of fish in its Consumer Guide to Seafood.)

“Fish is very low in saturated fat and low in cholesterol,” said Jennifer McDaniel, a spokeswoman for the Academy of Nutrition and Dietetics, and people who follow a Mediterranean style diet that incorporates seafood appear to be at lower risk for obesity, “but a lot of people don’t think about that and just focus on omega-3s.”

Read the full story at The New York Times