Phys.org news tagged with:salmon https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Canada is losing track of salmon health as climate and industrial threats mount Canada is failing in a decades-old pledge to monitor the health of Pacific salmon, according to new research from Simon Fraser University. https://phys.org/news/2026-01-canada-track-salmon-health-climate.html Plants & Animals Thu, 15 Jan 2026 15:51:23 EST news687714661 Should we smoke salmon using traditional techniques, or should we simply add the flavor? If you think something is off with added smoke flavoring in salmon, you're not alone. Many consumers are skeptical of salmon that hasn't been smoked in the traditional way. https://phys.org/news/2025-12-salmon-traditional-techniques-simply-flavor.html Other Tue, 23 Dec 2025 23:10:01 EST news685710448 California leaders celebrate salmon 'comeback' but climate risks loom On Dec. 12, Gov. Gavin Newsom touted the "comeback" of coho salmon after state officials spotted juvenile fish in the Russian River's upper basin—the first such sighting in more than 30 years. https://phys.org/news/2025-12-california-leaders-celebrate-salmon-comeback.html Plants & Animals Tue, 16 Dec 2025 19:30:05 EST news685099360 Orca tail dolphins to hunt salmon—and may share the catch Killer whales or orca (Orcinus orca) have been observed hunting with Pacific white-sided dolphins (Lagenorhynchus obliquidens) in the waters off British Columbia, Canada, and sharing fish scraps with them after making a kill, according to research published in Scientific Reports. https://phys.org/news/2025-12-orca-tail-dolphins-salmon.html Plants & Animals Thu, 11 Dec 2025 11:00:09 EST news684578221 NOAA's denial of endangered status for salmon sparks talk of legal challenge On Dec. 8, Federal fisheries officials rejected a bid to designate West Coast Chinook salmon as threatened or endangered under the Endangered Species Act. https://phys.org/news/2025-12-noaa-denial-endangered-status-salmon.html Plants & Animals Wed, 10 Dec 2025 19:40:01 EST news684581930 Counting salmon is a breeze with airborne eDNA During the annual salmon run last fall, University of Washington researchers pulled salmon DNA out of thin air and used it to estimate the number of fish that passed through the adjacent river. Aden Yincheong Ip, a UW research scientist of marine and environmental affairs, began formulating the driving hypothesis for the study while hiking on the Olympic Peninsula. https://phys.org/news/2025-11-salmon-breeze-airborne-edna.html Ecology Wed, 26 Nov 2025 12:47:31 EST news683383621 New deep-learning tool can tell if salmon is wild or farmed A paper published in Biology Methods and Protocols, finds that it is now possible to distinguish wild from farmed salmon using deep learning, potentially greatly improving strategies for environmental protection. The paper is titled "Identifying escaped farmed salmon from fish scales using deep learning." https://phys.org/news/2025-11-deep-tool-salmon-wild-farmed.html Molecular & Computational biology Wed, 26 Nov 2025 00:10:01 EST news683195761 Salmon's comeback pits nature against Trump administration For the first time in more than a century, migrating salmon have climbed close to the headwaters of the Klamath River's most far-flung tributaries, as much as 360 miles from the Pacific Ocean in south-central Oregon. The achievement is the clearest indication yet that the world's largest dam removal project, completed on the river a year ago, will yield major benefits for salmon, the river ecosystem, and the tribes and commercial fishers whose lives revolve around the fish. https://phys.org/news/2025-11-salmon-comeback-pits-nature-trump.html Plants & Animals Thu, 06 Nov 2025 07:30:01 EST news681636534 Salmon use pituitary glands to 'see' when it's time to migrate, researchers discover One of the enduring ichthyological mysteries is how migratory fish know when it is time to move from their winter to summer habitats. The ability to tell when the seasons are changing is crucial for a wide range of major life events, including feeding and spawning, as well as migration. https://phys.org/news/2025-10-salmon-pituitary-glands-migrate.html Plants & Animals Wed, 22 Oct 2025 14:11:04 EDT news680361061 Almost 75,000 farmed salmon in Scotland escaped into the wild after Storm Amy. Why this may cause lasting damage When Storm Amy battered the Scottish Highlands in early October, it tore through a salmon farm's sea pens, releasing around 75,000 fish into open water in Loch Linnhe. The scale of the escape is alarming. It comes at a time when wild Atlantic salmon—already classified as "endangered" in Great Britain—are in decline. https://phys.org/news/2025-10-farmed-salmon-scotland-wild-storm.html Ecology Tue, 14 Oct 2025 13:02:04 EDT news679665722 Anglers delight in salmon returns, but study warns of coho population collapse While anglers are celebrating a strong start to the salmon season, a new Simon Fraser University study warns coho salmon are under serious threat. https://phys.org/news/2025-10-anglers-salmon-coho-population-collapse.html Ecology Thu, 02 Oct 2025 13:23:04 EDT news678630182 Regulatory loopholes, endangered wild salmon and suffering farmed salmon How can we save wild salmon from extinction, and at the same time ensure farmed salmon a life free from lice and other suffering? Research uncovers critical challenges related to management, fish welfare, monitoring and control in the aquaculture industry. https://phys.org/news/2025-09-regulatory-loopholes-endangered-wild-salmon.html Ecology Thu, 18 Sep 2025 14:40:03 EDT news677425107 Once again, an endangered orca in Washington state is seen carrying a dead calf Once again, an endangered orca in Washington state has been seen carrying her dead newborn calf in an apparent effort to revive it. https://phys.org/news/2025-09-endangered-orca-washington-state-dead.html Ecology Mon, 15 Sep 2025 16:10:09 EDT news677171059 Warming rivers in Alaska threaten Chinook salmon populations and Indigenous food security For millennia, Indigenous people living in Alaska and Canada's Yukon territory have relied on Chinook salmon. The large, fatty fish provide essential nutrients for Arctic living and have influenced traditions and languages across generations. https://phys.org/news/2025-09-rivers-alaska-threaten-chinook-salmon.html Plants & Animals Thu, 11 Sep 2025 10:27:05 EDT news676805222 Death by a thousand cuts: Salmon are falling through the cracks in British Columbia's fragmented policy landscape New research from Simon Fraser University (SFU) Biological Sciences researchers finds that Pacific salmon are facing escalating threats due to a lack of coordinated conservation policy and oversight. https://phys.org/news/2025-09-death-thousand-salmon-falling-british.html Political science Wed, 10 Sep 2025 15:40:02 EDT news676734903 How a 'perfect storm' triggered a marine heat wave and sent salmon lice into overdrive On August 5, 2024, a marine heat wave began along the coast of Lofoten in Northern Norway. It lasted for 21 days, with sea temperatures measured at a record high. This caused salmon lice to thrive. https://phys.org/news/2025-08-storm-triggered-marine-salmon-lice.html Environment Thu, 21 Aug 2025 13:05:03 EDT news675000301 150 species saved in England, but 'time running out' to halt decline A multi-million pound conservation program in England helped save 150 struggling species but "time is running out" to halt the decline, the head of Natural England, which led the initiative, said Wednesday. https://phys.org/news/2025-08-species-england-halt-decline.html Ecology Wed, 13 Aug 2025 09:32:03 EDT news674296320 California farmers, anglers and researchers often clash over salmon. Science united them In better times, droves of young winter-run Chinook salmon would travel 300 miles downstream from the Sacramento River, beneath the Golden Gate Bridge and into the Pacific. They would return as adults, shimmering silver and red, and spawn at their exact place of birth in the Sacramento–San Joaquin Delta. https://phys.org/news/2025-08-california-farmers-anglers-clash-salmon.html Plants & Animals Wed, 13 Aug 2025 08:52:40 EDT news674293951 Wild salmon are the stars of the fish world: What that tells us about conservation Wild salmon are not just rarer than their farmed cousins—they're better looking too. In a new study by my colleagues and I, we found that they are noticeably more symmetrical than those reared in captivity. In other words, they're prettier (by human standards, at least). And that's not just cosmetic. https://phys.org/news/2025-08-wild-salmon-stars-fish-world.html Plants & Animals Tue, 12 Aug 2025 14:30:04 EDT news674227802 Anchovy-rich diet linked to fatal vitamin B1 deficiency in endangered Chinook salmon A pair of Idaho State University researchers are part of a group of more than 30 scientists who've found the culprit responsible for the death of newly hatched fish in an endangered salmon run. The perp: anchovy. https://phys.org/news/2025-08-anchovy-rich-diet-linked-fatal.html Plants & Animals Tue, 05 Aug 2025 11:30:03 EDT news673611844 Here's how we help an iconic California fish survive the gauntlet of today's highly modified waterways Imagine a world where just six out of every 100 newborns make it to their teenage years, the rest unable to survive post-apocalyptic environmental conditions that have become too strange and dangerous for human life. That's the plight of California's once-thriving Chinook salmon, a population that now sees 94% of its juveniles die within the few weeks they spend trying to reach the sea from the freshwater sources where they first hatched. https://phys.org/news/2025-07-iconic-california-fish-survive-gauntlet.html Plants & Animals Mon, 14 Jul 2025 16:49:17 EDT news671730550 Gene-edited pigs may soon enter the Canadian market, but questions about their impact remain The Canadian government is currently considering approving the entry of gene-edited pigs into the food system. https://phys.org/news/2025-07-gene-pigs-canadian-impact.html Plants & Animals Thu, 10 Jul 2025 15:26:04 EDT news671379961 The long slow death of Norway's wild salmon Waist-deep in a rain-swollen river, Christer Kristoffersen cast his line, landed it gently on the water, and caught ... nothing. Norway's iconic wild salmon is in dramatic decline, a victim of fish farming and climate change. https://phys.org/news/2025-07-death-norway-wild-salmon.html Ecology Wed, 09 Jul 2025 05:10:18 EDT news671256574 Habitat loss and over-exploitation are leading to a decline in salmon populations One-quarter of freshwater animals are now threatened with extinction, and population declines in fresh waters outpace those in marine and terrestrial systems. Reports of salmonid fish decline are stark, with many populations and species listed as threatened or endangered. https://phys.org/news/2025-06-habitat-loss-exploitation-decline-salmon.html Ecology Mon, 16 Jun 2025 09:47:05 EDT news669286021 Salmon farming: The good, the bad and the ugly Bodies piled up against the edge of the pen, skin flaking off, pink flesh to the sky. From above, a glut of dead fish ripples in time with the waves. https://phys.org/news/2025-06-salmon-farming-good-bad-ugly.html Ecology Wed, 11 Jun 2025 10:21:04 EDT news668856061 Why the salmon on your plate contains less omega-3 than it used to, and how the industry can address that Farmed Atlantic salmon has become one of the most highly traded food commodities in the world, enjoyed for its versatility as much as for its health benefits. It has long been known that eating oily fish such as salmon is the best way to consume long-chain omega-3 fatty acids. These are essential for brain development, mental health and cognition. https://phys.org/news/2025-06-salmon-plate-omega-industry.html Ecology Tue, 10 Jun 2025 16:10:10 EDT news668790011 Farmed production of some fish—and seaweed—is soaring The amount of farmed seafood we consume—as opposed to that taken wild from our waters—is soaring every year, making aquaculture an ever-more important source for many diets, and a response to overfishing. https://phys.org/news/2025-06-farmed-production-fish-seaweed-soaring.html Agriculture Mon, 09 Jun 2025 04:50:01 EDT news668662955 Discovery offers new insights into skin healing in salmon University of Stirling scientists have discovered cells in the skin of Atlantic salmon that offer new insights into how wounds heal, tissues regenerate, and cellular transitions support long-term skin health. https://phys.org/news/2025-05-discovery-insights-skin-salmon.html Plants & Animals Tue, 27 May 2025 10:44:04 EDT news667561442 How redefining just one word could strip the Endangered Species Act's ability to protect vital habitat It wouldn't make much sense to prohibit people from shooting a threatened woodpecker while allowing its forest to be cut down, or to bar killing endangered salmon while allowing a dam to dry out their habitat. https://phys.org/news/2025-05-redefining-word-endangered-species-ability.html Plants & Animals Wed, 14 May 2025 08:36:06 EDT news666430562 Invasive salmon, clams and seaweed are next threats to biodiversity in Britain Pink salmon, purple Asian clams, marine invertebrates that form spaghetti-like colonies and a nematode worm that causes extensive deaths of trees are among the new entries in an experts' watchlist of invasive non-native species that could threaten Great Britain in the next 10 years. https://phys.org/news/2025-05-invasive-salmon-clams-seaweed-threats.html Plants & Animals Mon, 12 May 2025 13:13:04 EDT news666274382