Current Salmon News and Events

Current Salmon News and Events, Salmon News Articles.
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Salmon scales reveal substantial decline in wild salmon population & diversity
The diversity and numbers of wild salmon in Northern B.C. have declined approximately 70 per cent over the past century, according to a new Simon Fraser University study. (2021-02-22)

Researchers demonstrate new method to track genetic diversity of salmon, trout
Scientists at Oregon State University and the U.S. Forest Service have demonstrated that DNA extracted from water samples from rivers across Oregon and Northern California can be used to estimate genetic diversity of Pacific salmon and trout. (2021-02-21)

Flooding in the Columbia River basin expected to increase under climate change
The Columbia River basin will see an increase in flooding over the next 50 years as a result of climate change, (2021-02-10)

Captive-bred juvenile salmon unlikely to become migratory when released into streams
Researchers at the Kobe University Graduate School of Science have revealed that when captive-bred juvenile red-spotted masu salmon are released into natural streams, very few individuals become migrants. This was an important species in the rivers of west Japan for the fishing industry, however in recent years their numbers are declining rapidly. The results of this research offer important suggestions for stocking practices and the management of river environments. (2021-02-08)

Eyes reveal life history of fish
If you look deep into the eyes of a fish, it will tell you its life story. Scientists from the University of California, Davis, demonstrate that they can use stable isotopic analysis of the eye lenses of freshwater fish -- including threatened and endangered salmon -- to reveal a fish's life history and what it ate along the way. (2021-01-28)

New drug form may help treat osteoporosis, calcium-related disorders
Purdue University innovators developed a stabilized form of human calcitonin, which is a peptide drug already used for people with osteoporosis. Researchers at Purdue created a prodrug form of the peptide hormone to increase its effectiveness as an osteoporosis treatment. (2021-01-06)

Wa­ter and genes flow between the two largest Baltic sal­mon rivers
Salmon from upstream reaches of the two northernmost Baltic rivers are different from downstream salmon. A recent study found that upstream salmon from the large Tornio and Kalix Rivers in Finland and Sweden are genetically distinct and migrate at different times and ages than their downstream counterparts. However, there seems to be no such distinction between salmon from these two neighbouring rivers. (2020-12-21)

Effects of organohalogen pollution are coded in gene expression profiles of Baltic salmon
Researchers of Ehime University and the University of Helsinki measured hepatic organohalogen (OHC) concentrations and gene expression profiles in Atlantic salmon collected from three areas in the Baltic Sea. The results showed that OHCs and gene expression profiles were individually grouped in three areas and the covariation of the two datasets provided by a multivariate method was significantly similar. This suggests that the gene expression profiles in salmon are affected by OHC contamination. (2020-12-15)

New study suggests indigenous practices can help revitalize pacific salmon fisheries
Across the North Pacific, salmon fisheries are struggling with climate variability, declining fish populations, and a lack of sustainable fishing opportunities. According to a study published today in BioScience from a team of Indigenous leaders and conservation scientists, help lies in revitalizing Indigenous fishing practices and learning from Indigenous systems of salmon management. (2020-12-09)

Tire-related chemical is largely responsible for adult coho salmon deaths in urban streams
A team led by researchers at the University of Washington Tacoma, UW and Washington State University Puyallup have discovered a chemical that kills coho salmon in urban streams before the fish can spawn. (2020-12-03)

Chemical derived from car tires turns streams toxic, kills coho salmon
For Pacific Northwest coho salmon, returning to spawn in the streams and creeks near urban areas can be a death sentence, thanks to a ubiquitous additive in vehicle tires, a new study reveals. (2020-12-03)

A baseline comparison of killer whale stranding deaths in the northeastern Pacific/Hawaii
One of the first studies to analyze trends across orca necropsy reports reveals human activity as a cause of death for studied orcas across every age group, according to a study published December 2, 2020 in the open-access journal PLOS ONE by Stephen Raverty from the Ministry of Agriculture, Canada, and colleagues. (2020-12-02)

It's not too late to save 102 species at risk of extinction
The Fraser River estuary in British Columbia is home to 102 species at risk of extinction. A new study says it's not too late to save these species if action is taken now. (2020-11-26)

Spring-run and fall-run Chinook salmon aren't as different as they seem
Historically, spring-run and fall-run Chinook salmon have been considered as separate subspecies, races, ecotypes, or even as separate species of fish. A new genetic analysis, however, shows that the timing of migration in Chinook salmon is determined entirely by differences in one short stretch of DNA in their genomes. (2020-10-29)

Simple genetics control timing of chinook salmon migration
The complex migratory traits of northern California's Chinook salmon - which have led some to regard the early- versus late-migrating fish as different species - result from a single, small gene region, researchers report. (2020-10-29)

Smart solution to detect seafood spoilage
Existing methods for detecting seafood spoilage are far from satisfactory for ensuring food safety and security. To solve this problem, Flinders University researchers have constructed and tested a solid-state fluorescent sensor loaded on filter papers that can instantly and accurately measure the rate of spoilage in Atlantic salmon - and can easily be applied to other seafood. (2020-10-28)

Early-arriving endangered Chinook salmon take the brunt of sea lion predation
A new University of Washington and NOAA Fisheries study found that sea lions have the largest negative effect on early-arriving endangered Chinook salmon in the lower Columbia River. The results of this study will publish Oct. 18, 2020 in the Journal of Applied Ecology. (2020-10-19)

Invisible threat: Listeria in smoked fish
Fish should be a regular component of our diets. It is an important source of biologically high-quality and easily digestible protein, minerals and vitamins. However, raw, smoked and cured fish products also often contain pathogenic germs, notably listeria. People can become infected by eating contaminated food and become ill with listeriosis. (2020-10-07)

Alaska's salmon are getting smaller, affecting people and ecosystems
The size of salmon returning to rivers in Alaska has declined dramatically over the past 60 years because they are spending fewer years at sea, scientists report. Salmon are critically important to both people and ecosystems in Alaska, supporting commercial and subsistence fisheries and transporting nutrients from the ocean to inland areas. Smaller salmon provide less food for people who depend on them, less value for commercial fishers, and less fertilizer for terrestrial ecosystems. (2020-08-19)

Subpolar marginal seas play a key role in making the subarctic Pacific nutrient-rich
A group of researchers from three Japanese universities has discovered why the western subarctic Pacific Ocean, which accounts for only 6 percent of the world's oceans, produces an estimated 26 percent of the world's marine resources. (2020-08-07)

Scientists supercharge shellfish to tackle vitamin deficiency in humans
Cambridge scientists have developed a new way to fortify shellfish to tackle human nutrient deficiencies which cause severe health problems across the world. The team is now working with major seafood manufacturers to further test their microencapsulation technology, or ''Vitamin Bullets''. (2020-07-19)

Chinook salmon declines related to changes in freshwater conditions
A new University of Alaska-led study provides the first evidence that declines in many of Alaska's chinook salmon populations can be attributed in part to climate-driven changes in their freshwater habitats. (2020-07-09)

Jellyfish contain no calories, so why do they still attract predators?
New study shows that jellyfish are an important food source for many animals. As jellyfish blooms become more frequent and more massive, this could affect marine ecosystems. (2020-06-24)

Size matters in the sex life of salmon
For Atlantic salmon, size matters when it comes to love. Larger males and females that may spend up to four years at sea produce many more babies, but they are very rare compared to younger fish. (2020-06-23)

You are what you eat is as important for fish as it is for people
There is truth in the saying 'you are what you eat'; even more so if you are a salmon or herring swimming off the British Columbia coast, a recent University of British Columbia study discovered. (2020-06-08)

Great white shark diet surprises scientists
The first-ever detailed analysis of the diet of great white sharks has shown they spend more time feeding at the seafloor than many would have expected. (2020-06-07)

Story tips: Mining for COVID, rules to grow by and the 3D connection
ORNL story Tips: Mining for COVID, rules to grow by and the 3D connection. (2020-05-18)

What does drought mean for endangered California salmon?
Droughts threatens California's endangered salmon population -- but pools that serve as drought refuges could make the difference between life and death for these vulnerable fish. (2020-05-18)

Fishing can disrupt mating systems
In many fish species body size plays an important role in sexual selection. Large individuals are preferred mating partners because they can enhance offspring survival by providing better quality resources than small individuals. While large females and males are often favored by sexual selection, fishing targets and removes these reproductively superior individuals. Academy Research Fellow Silva Uusi-Heikkilä discusses in her recent literature review the implications fisheries selection might have on sexual selection, individual reproductive success and population viability. (2020-05-08)

Magnetic pulses alter salmon's orientation, suggesting navigation via magnetite in tissue
Researchers have taken a step closer to solving one of nature's most remarkable mysteries: How do salmon, when it's time to spawn, find their way back from distant ocean locations to the stream where they hatched? (2020-05-02)

Return of 'the Blob' could intensify climate change impacts on Northeast Pacific fisheries
A large marine heatwave would double the rate of the climate change impacts on fisheries species in the northeast Pacific by 2050, says a recently released study by researchers from the University of British Columbia and University of Bern. (2020-04-21)

KIST and UNIST joint research team develop a high-capacity battery material using salmon DNA
A Korean research team has succeeded in developing next-generation high-capacity cathode material for lithium-ion batteries. The Korea Institute of Science and Technology(KIST) announced that the joint research team of Dr. Kyung Yoon Chung(at KIST), Prof. Sang-Young Lee(at the Ulsan National Institute of Science and Technology(UNIST)), and Dr. Wonyoung Chang (at KIST) have developed high-performance cathode material by stabilizing the surface of over-lithiated layered oxides(OLO), using the DNA of salmon. (2020-04-17)

Biorobotics is the future of fish farming
Several hundred thousand salmon swim closely together in fish farms. For at least some time, the fish farmer and the fish have the same goal: to keep the fish healthy, eating and growing. Therefore it is necessary to provide fish with environmental conditions, where the stress level is low, parasites do not pose a risk to their health and there is enough food. Stressed and sick fish do not eat or grow or bring profit to the fish farmer. (2020-04-16)

Some worms programmed to die early for sake of colony
Some worms are genetically predisposed to die before reaching old age, which appears to benefit the colony by reducing food demand, finds a new UCL-led study published in Aging Cell. (2020-04-16)

Robo-turtles in fish farms reduce fish stress
Robotic turtles used for salmon farm surveillance could help prevent fish escapes. The 'turtle robots' are the first steps in a technology that improves the monitoring of sea cages. (2020-04-02)

Salmon provide nutrients to Alaskan streambanks
Nutrient cycling of stream ecosystems dependent on portion of salmons' lifecycle. (2020-03-18)

For migratory alewife, urbanization of coastal areas means smaller size, poorer health
A Marine Biological Laboratory study of migratory herring (alewife) in Massachusetts and Maine finds that fish leaving urbanized coastal environments are smaller and less healthy than fish leaving less developed watersheds. (2020-03-13)

Melting glaciers will challenge some salmon populations and benefit others
A new Simon Fraser University-led study looking at the effects that glacier retreat will have on western North American Pacific salmon predicts that while some salmon populations may struggle, others may benefit. (2020-03-11)

World-first system forecasts warming of lakes globally
Pioneering research led by the UK Centre for Ecology & Hydrology (UKCEH) has devised the first system that classifies lakes globally, placing each of them in one of nine 'thermal regions.' This will enable scientists to better predict future warming of the world's lakes due to climate change, and the potential threat to cold-water species such as salmon and trout. (2020-03-06)

Re-thinking 'tipping points' in ecosystems and beyond
Abrupt environmental changes, known as regime shifts, are the subject of new research in which shows how small environmental changes trigger slow evolutionary processes that eventually precipitate collapse. (2020-03-02)

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