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Salmon fry before being released just outside San Francisco Bay. Jim Wilson / The New York Times / Redux

By Alisa Opar

For Chinook salmon, the urge to return home and spawn isn't just strong — it's imperative. And for the first time in more than 65 years, at least 23 fish that migrated as juveniles from California's San Joaquin River and into the Pacific Ocean have heeded that call and returned as adults during the annual spring run.

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Juvenile hatchery salmon flushed from a tanker truck in San Francisco Bay, California. Ben Moon

That salmon sitting in your neighborhood grocery store's fish counter won't look the same to you after watching Artifishal, a new film from Patagonia.

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EcoWatch Daily Newsletter

The Food and Drug Administration on Friday lifted an import alert that banned genetically modified or GE salmon. Pixabay

By Jessica Corbett

The Trump administration has lifted a ban on importing genetically engineered or GE salmon, which critics have long called "Frankenfish," in a move that consumer advocates charge "runs counter to sound science and market demand."

The Food and Drug Administration (FDA) announced the decision on Friday, more than three years after approving GE salmon as the first biotech animal authorized for commercial sale and consumption in the U.S.

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Marianne Koester disposes of a dead salmon at the Wallace River Hatchery. Howard Hsu

By Howard Hsu

The Tulalip Indian Reservation sits on the east side of the Puget Sound, about 40 miles north of Seattle, Washington, where the change in seasons is marked by the arrival and departure of salmon. At the heart of the reservation is Tulalip Bay, where salmon return every spring and fall before swimming upstream to spawn.

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A mix of fats, such as those found in nuts, avocados, salmon and olives, could be healthy and more satisfying. a_namenko / iStock / Getty Images Plus

By Heidi Silver

Public health guidelines, such as the Dietary Guidelines for Americans, have long emphasized reducing dietary fat intake, but nutritionists and other health scientists now have more recent evidence that not all fats have adverse effects. Dietary fats differ with regard to their effects on health and risk for chronic diseases, particularly in regard to effects on risk for heart disease.

Indeed, some nutrition experts now believe that certain types of dietary fat may even reduce cardiovascular risk. Some dietary fats may lower fats in the blood called triglycerides. They may also increase levels of HDL, or what is known as the "good" cholesterol, and reduce LDL-cholesterol, or the less healthy type of cholesterol, thus improving the HDL to total cholesterol ratio.

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Glen Canyon Dam, Colorado River. Sharon Mollerus, CC BY 2.0

By Tara Lohan

In the last few weeks of 2018, the Trump administration set the stage for a big battle over water in the new year. At stake is an important rule that defines which waters are protected under the Clean Water Act. The Trump administration seeks to roll back important protections for wetlands and waterways, which are important to drinking water and wildlife.

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Southern Resident killer whale mother and her calf swimming. NOAA

With only 74 left in the wild, the Southern Resident orca population in Puget Sound needs help now more than ever. That's why on Thursday, Washington Gov. Jay Inslee's office announced "an unprecedented investment" to help boost the population as well as the Chinook salmon they eat.

"We are undertaking a herculean effort to save these iconic creatures. It will take action at every level of the environment across our entire state," Inslee said in a news release. "We need to restore the ecosystem to one that sustains orcas, salmon and the quality of life for all Washingtonians."

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The Stikine River runs through Wrangell, Alaska. Mining operations nearby threaten to poison fish in the Stikine watershed and destroy the traditions and livelihoods of Southeast Alaskan Tribes. Alaska Department of Fish and Game

By Ramin Pejan

Mining operations in Canada are threatening to destroy the way of life of Southeast Alaskan Tribes who were never consulted about the mines by the governments of Canada or British Columbia.

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A Chinese sturgeon, one of a handful on display, is seen at the Chinese Sturgeon Aquarium in Hong Kong. Shankar S. / Flickr

By Jason Bittel

More than 16 feet long and weighing up to 1,100 pounds, Chinese sturgeons are among the world's largest freshwater fish. They're big and they're ancient. According to fossil records, they've been swimming China's Yangtze, Qiantang, Minjiang and Pearl Rivers since the time of the dinosaurs.

And now they're on the brink of oblivion, having disappeared from all of their former range except for small portions of the Yangtze.

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Chile's small-scale fishers are squeezed, but a renewed interest in native foods offers hope. Claudio Almarza / Oceana

By Allison Guy

When Carlos Castro was young, he didn't plan on following his dad and granddad into fishing. Like a lot of teenagers in the 1970s, Castro dreamt of kung fu. Bruce Lee was more his style than the family business.

Castro swam laps to shape up back then, dodging boats in the bracingly cold bay of Valparaiso, a port city in central Chile. Forty years later, he still plies those waters, driving one of the boats he used to swim past. Castro, a youthful 56 in white trainers and Nike gear, became a fisherman after all.

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Russian and U.S. students carry bug spray for the mosquitoes, bear spray for the grizzlies and notebooks for the salmon science, while studying in Alaska's backcountry. John Simeone on behalf of WWF

By Amy McDermott

At the height of the Alaskan summer, a troupe of students hiked up the middle of a shallow creek. Undergraduates and grads from the University of Washington, the University of Alaska Fairbanks and Kamchatka State Technical University in eastern Russia carried handheld clickers to count the multitudes of salmon thrashing upstream to spawn. Some of the students spoke English, others Russian, but they all came to see salmon: fish that their two countries share.

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