Saving Seafood

As drought puts growing strains on fish, hatcheries serve as lifelines for California salmon

April 11, 2022 — When Shasta Dam was built on the Sacramento River in the 1940s, the government also established Coleman National Fish Hatchery about 30 miles away on the tributary Battle Creek, aiming to make up for the loss of upstream habitat by raising fish for release.

The hatchery’s staff runs an elaborate spawning operation that this year is raising 12 million fall-run Chinook salmon, supporting California’s commercial and recreational fisheries. The hatchery also raises other types of salmon and steelhead.

The adult salmon swim up the Sacramento River and into Battle Creek, then up a fish ladder to the hatchery’s holding ponds. Mechanical screens in the water are used to move the fish to the spawning building.

The fish are placed into a bath with carbon-dioxide in the water, which enables the staff to handle them. Workers lift the salmon from the water in nets, check to see that they’re ready for spawning, and separate females from males.

They club the fish and send them sliding down a metal chute. One worker hangs each female salmon from a hook, inserts a needle in its abdomen and sends air flowing to push out the eggs, which land in a colander. Another worker grabs each male fish and twists the tail, squeezing out milt that will fertilize the eggs.

Read the full story at the Los Angeles Times

California salmon are at risk of extinction. A plan to save them stirs hope and controversy

April 8, 2022 — Shasta Dam stands more than 600 feet tall, the height of a 55-story building, with a colossal spillway that towers over the Sacramento River in a curved face of concrete.

Since its completion in 1945, the dam has created California’s largest reservoir, which provides water for farms and cities across the state. But it has also blocked Chinook salmon from returning upstream to the cold, spring-fed streams near Mt. Shasta where they once spawned.

Cut off from that chilly egg-laying habitat, endangered winter-run Chinook have struggled to survive. They’ve had help from an elaborate spawning operation at a government-run fish hatchery, which is intended to function like a life-support system for the salmon.

But that support system is no longer enough. As global warming fuels worsening drought conditions and extreme heat, experts say winter-run Chinook are being pushed to the brink of extinction.

Last year, the water flowing from Shasta Dam got so warm that it was lethal for winter-run salmon eggs. Most of the eggs and young fish died. State biologists estimated that only 2.56% of the eggs hatched and survived to swim downriver, one of the lowest estimates of “egg-to-fry” survival yet.

Read the full story at the Los Angeles Times

California, Florida fish mortality pinned to drought, climate change

July 15, 2021 — California officials warned this week that salmon in the state’s Sacramento River might not survive the region’s historic drought.

The California Department of Fish and Wildlife said that “nearly all” of the endangered winter-run Chinook salmon’s juveniles might not make it through the season, according to The Sacramento Bee.

The publication reported Wednesday that a final blow, after two years of “severe mortality during the last drought,” would risk the extinction of the species — even though the agency has hauled millions of the Chinook salmon to Bay Area waters as a precaution.

Triple-digit temperatures have plagued the West, killing hundreds of people in the last major heat wave. The severe conditions have exacerbated the climate-driven “megadrought,” leading to less water and less streamflow.

Read the full story at Fox News

Dire drought warning: California says ‘nearly all’ salmon could die in Sacramento River

July 9, 2021 — The drought is making the Sacramento River so hot that “nearly all” of an endangered salmon species’ juveniles could be cooked to death this fall, California officials warned this week.

In a brief update on the perilous state of the river issued this week, the California Department of Fish and Wildlife made a dire prediction about the endangered winter-run Chinook salmon and its struggles against consistently hot weather in the Sacramento Valley.

“This persistent heat dome over the West Coast will likely result in earlier loss of ability to provide cool water and subsequently it is possible that nearly all in-river juveniles will not survive this season,” the department said.

Given that the salmon generally have a three-year life cycle, a near-total wipeout of one year’s run of juveniles “greatly increases the risk of extinction for the species,” said Doug Obegi, a lawyer with the Natural Resources Defense Council.

The winter-run salmon endured two years of severe mortality during the last drought as well.

Read the full story at The Sacramento Bee

JAMES POGUE: Salmon is an indicator species for California’s water crisis. It’s not looking good

June 30, 2021 — In mid-June, California’s State Water Resources Control Board wrote a tragic letter. The board, which has significant powers under California’s Constitution to manage water for the benefit of California’s people and ecosystems, wrote that it would approve a plan for water releases out of Lake Shasta that risk destroying the Sacramento River’s iconic winter-run Chinook salmon population forever.

The winter-run Chinook population has already declined by 99%, down to a few thousand fish that manage to run out of the San Francisco Bay and return to spawn below a dam near Redding. Baby salmon need cold water to hatch from their eggs and grow until they’re ready to migrate to the ocean. But in this drought year, the Federal Bureau of Reclamation has proposed drawing down the levels in Lake Shasta — California’s largest reservoir — to deliver water to irrigators in the Central Valley, allowing the diminished reservoir to heat up over the summer to temperatures that when released into the river “could increase the risk of extinction significantly,” as the board’s own letter put it.

The board, whose members are appointed by the governor, could have modified the plan. Even keeping a small fraction of the water sent for irrigation to be released later could have a dramatic impact on the survival rates of young salmon hatching later in the summer. But holding back water to save fish would have set up a conflict with powerful business interests in the Central Valley.

The board seems to have been more willing to risk the extinction of a salmon run than they were to risk angering landowners and lobbyists. To save even some of the Sacramento River’s salmon population, in a year where pumping water to farms has resulted in dangerously low water flows, California has had to resort to hauling millions of young fish raised in state-run hatcheries via tanker trucks to the Golden Gate. But trucking fish is a desperate measure, one that conceals a larger crisis that is likely to make the fate of fish into one of the key political issues of California’s drought-stricken future.

Read the full opinion piece at the Los Angeles Times

California Sues Trump Administration Over Alleged Failure to Protect Species

February 21, 2020 — California is suing the administration of President Donald Trump for what it calls the administration’s failure to protect endangered species in the Sacramento and San Joaquin rivers.

California Attorney General Xavier Becerra, the California Natural Resources Agency, and the California Environmental Protection Agency filed the lawsuit on Thursday against the Trump administration in the U.S. District Court for the Northern District of California.

The attorney general said the Trump administration was adopting “scientifically challenged biological opinions that push species to extinction” and harm natural resources and waterways.

The lawsuit stressed the Trump administration’s alleged failure to protect endangered fish species from federal water export operations.

In October, the Trump administration announced a plan to divert water to California farmers, fulfilling a campaign promise made by the president.

Read the full story from Reuters at the New York Times

Endangered Winter-run Chinook Salmon Increase with Millions of Offspring Headed to Sea

December 9, 2019 — The following was released by NOAA Fisheries:

Biologists have estimated that almost 3.8 million juvenile winter-run Chinook salmon headed down the Sacramento River toward the ocean this year. This is the most offspring in a decade for the highly endangered population.

Typically about 80 percent of the outgoing juveniles have headed for the ocean by this time of year. This year’s total thus far is the most since 2009, when about 5 million juveniles traveled downriver.

The rebounding numbers of winter-run Chinook salmon reflect the critical help of a conservation fish hatchery and balanced water management. More favorable ocean conditions also benefited the parents of this year’s surging crop of juveniles, biologists say. About 8,000 adult fish returned to the Sacramento River to spawn earlier this year, the most since 2006.

“These fish continue to impress us with their resilience and their ability to survive if given the opportunity,” said Maria Rea, Assistant Regional Administrator for NOAA Fisheries’ California Central Valley Office. “By working cooperatively, we can make the best use of our suite of tools to protect and recover these endangered fish.”

Read the full release here

In California, orcas and salmon have become so scarce people have forgotten what once was. Will the Northwest be next?

September 30, 2019 — If there is a hell for salmon, it probably looks like this.

There were many more golf balls in the water than salmon this summer, whacked there by enthusiasts at Aqua Golf, a driving range on the bank of the Sacramento River.

Below the surface, the gravel salmon need to make their nests had been mined decades ago to build Shasta Dam, 602 feet tall and with no fish passage. The dam cut off access to all of the cold mountain waters where these fish used to spawn.

The hillsides above the river were blackened by wildfire. Houses, instead of forests, stood along the banks. Cars roared by on Interstate 5 as temperatures soared to 105 degrees.

Read the full story at The Seattle Times

Pacific Council Finalizes Generally Improved Salmon Seasons for 2019

April 17, 2019 — Most salmon trollers can expect better ocean salmon seasons this year — while also meeting conservation goals, fishery managers said Monday.

The Pacific Fishery Management Council finalized its recommendations for 2019 salmon seasons at its meeting in Rohnert Park, Calif., for seasons beginning in May.

The seasons must still be approved by the U.S. Secretary of Commerce, but managers said that is expected.

The adopted regulations for Chinook salmon reflect the improved status of Sacramento River fall Chinook, Oregon managers said in a notice to industry. Rogue River fall Chinook and Klamath River fall Chinook populations both are in good and fair condition, respectively, they added.

Also, most of the north migrating stocks of Chinook (Oregon Coastal Chinook stocks from the Nehalem River south to the Elk River as well as a number of Columbia River Chinook stocks) are in moderate to poor condition. These north migrating stocks of Chinook contribute very little to Oregon’s ocean seasons but are very important to Oregon’s inside estuary and river recreational seasons.

The commercial ocean troll salmon seasons north of Cape Falcon will have very limited Chinook salmon quotas again this year. The ocean fishery will be managed by quotas, season length, and vessel landing week (Thursday-Wednesday) limits. The early Chinook salmon-only season will start on May 6. The season will continue until the overall quota of 13,200 Chinook or the Leadbetter Pt., Washington, to Cape Falcon (in northern Oregon) subarea cap of 1,800 Chinook is taken, or June 28, whichever comes first. Fishermen will be limited to 100 Chinook per vessel for the period of May 6-15 and then shift to a 50 Chinook per vessel per landing week (Thursday-Wednesday), beginning May 16.

The summer all-salmon fishery north of Cape Falcon will open on July 1 and continue through the earlier of the overall Chinook quota of 13,050 Chinook or 30,400 fin clipped coho, managers said in the notice to fishermen. Trollers will also be limited to 150 adipose fin-clipped coho during the landing week (Thurs-Wed) per vessel.

This year’s fisheries were designed to take advantage of a higher number of coho salmon forecast to return to Washington’s waters as compared to recent years, Kyle Adicks, salmon policy lead for the Washington Department of Fish and Wildlife, said in a press release. However, projected low returns of key Chinook stocks in Puget Sound prompted fishery managers to restrict fisheries there.

“We’re able to provide more opportunities to fish for coho in some areas, particularly in the ocean and Columbia River, than we have been able to do for several years,” Adicks said. Coho fisheries generally benefit sport fishermen but can constrain commercial fishermen targeting Chinook if coho is taken incidentally. “But continued poor returns of some Chinook stocks forced us to make difficult decisions for fisheries in Puget Sound this year.”

Again in 2019, fishery managers projected another low return of Stillaguamish, Nooksack and mid-Hood Canal Chinook and took steps to protect those stocks.

WDFW Director Kelly Susewind acknowledged the reductions in Puget Sound salmon fisheries are difficult for both fishermen, primarily sport fishermen, and the local communities that depend on those fisheries.

“Reducing fisheries is not a long-term solution to the declining number of Chinook salmon,” Susewind said. “The department will continue working with the co-managers, our constituents, and others to address habitat loss. Without improved habitat, our chinook populations will likely continue to decline.”

Limiting fisheries to meet conservation objectives for wild salmon indirectly benefits southern resident killer whales. The fishery adjustments will aid in minimizing boat presence and noise, and decrease competition for Chinook and other salmon in these areas critical to the declining whales, WDFW said in a press release.

In the rest of Oregon, from Cape Falcon to Humbug Mountain near Port Orford in southern Oregon, the Chinook salmon season will be open April 20-30, May 6-30, June 1-Aug. 29, and Sept. 1 through Oct. 31. Beginning Sept. 1, a 75 Chinook salmon per vessel weekly limit (Thursday through Wednesday) will be in place.

From Humbug Mt. to the Oregon/California border, the commercial troll fishery will be open April 20-30 and May 6-30. Beginning June 1, landing week (Thurs-Wed) limits of 50 Chinook per vessel will go into effect along with monthly quotas of 3,200 Chinook in June; 2,500 in July; and 1,200 in August (8/1-29).

“I really appreciate everybody’s work this week,” Oregon Department of Fish and Wildlife Fish Division Deputy Administrator Chris Kern said on the Council floor. “[It was] a lot of hard work, but I feel pretty good about where we landed.”

Similarly, California trollers should expect more time on the water this year.

Brett Kormos, with the Marine Region of the California Department of Fish and Wildlife, noted the two primary rivers, Sacramento and Klamath River, that contribute fall Chinook to ocean salmon fisheries are still in a rebuilding phase or overfished status. Still, “we are also looking at increased harvest opportunities in both commercial and recreational sectors in 2019 compared to 2018,” Kormos said.

Fishery managers modeled the seasons and limits to allow for a Sacramento River fall Chinook spawning escapement of 160,129 hatchery and natural area adults.

This story has been republished here with the permission of SeafoodNews.com.