Posts for tag "salmon"
Building Salmon Knowledge In Alaska
Researchers at the University of California, Santa Barbara, are partnering with salmon experts around Alaska to make it easier to share findings about the fish, according to a release.
- Posted June 17, 2022
Protecting Bristol Bay Salmon from Mining
The U.S. EPA has proposed limitations to protect a highly valuable salmon fishery in Bristol Bay, Alaska, according to WaterWorld. The fishery is under threat, officials say, by a large-scale mining effort at the Pebble deposit there.
- Posted June 15, 2022
Vanishing Sockeye Salmon in Washington
Increasing light pollution and the invasion of predatory fish like walleye or pikes have made Lake Washington less hospitable for sockeye salmon. Some conservationists believe that replenishing sockeye in the lake is an impossible task. Unfortunately, increasing...
- Posted June 13, 2022
PCB Levels Continue To Drop In Lake Michigan
PCB concentrations Lake Michigan Chinook and coho salmon have declined over the past 35 years, though the drop has slowed since the mid-1980s, according to a new study. Recent declines may be more than just the result...
- Posted June 6, 2022
Opposites Attract For Wild Coho Salmon
Wild coho salmon seem to have a keen eye for mates, while their hatchery-reared brethren don’t fare as well when picking partners. New research from Oregon State University shows that wild coho prefer mates with different disease-resistant...
- Posted May 6, 2022
Californian Salmon Drying Up In Drought
California’s drought crisis, now in its third year with little sign of relief, isn’t just a problem for farmers and suburbanites with lawn problems. Millions of trout are heading for cooler waters with the help of California...
- Posted May 4, 2022
Coho Salmon Thrive On Fellow Fish
Death in nature is never a matter of existential concern, but rather a means of resource reallocation. A new study from Simon Fraser University and the Raincoast Conservation Foundation shows how juvenile coho salmon participate in this...
- Posted April 18, 2022
Alaskan Salmon Suffering In Warming Waters
Alaska’s waterways are warming, and anglers and the salmon they’re after have reason to worry. Five years of temperature data from 48 streams throughout the Cook Inlet reveal a warming trend that is placing plenty of stress...
- Posted April 1, 2022
Bacterial Coldwater Disease Less Prevalent In Hatcheries
Bacterial coldwater disease threatens wild and hatchery-raised salmonid fishes around the world, as well as the economic impacts that they offer. The disease is unfortunately spread through both contact with other fishes as well as through sexual...
- Posted May 22, 2016
Despite Extinction Predictions, Mountain Streams Supporting Fish
Predictions that fishes living in cold mountain streams were set to suffer massive extinctions thanks to climate change have turned out to be wrong, according to new research led by scientists at the U.S. Forest Service.
- Posted April 6, 2016
Benefits Of Intensively Monitored Watersheds
Since the 1990s, billions of dollars have been invested in works across the United States to improve stream health for fish. But many of the projects, through a lack of monitoring or recording of basic details, have...
- Posted February 2, 2016
Wisconsin DNR Scientists Assess Trends Of PCBs In Lake Michigan Salmon
The Wisconsin Department of Natural Resources began tracking the levels of polychlorinated biphenyls (PCBs) in Lake Michigan salmon in 1975. That was two years before their use and manufacture was banned in the United States.
- Posted November 10, 2015
Armored Shorelines In Seattle’s Elliott Bay Impact Chum Salmon Food Choices
Like many commercial waterfronts, Seattle’s Elliott Bay has been built to withstand the natural forces of erosion. This has come with the addition of structures like concrete seawalls and piles of riprap, most of which were put...
- Posted October 7, 2015
In Last Five Years, 50 Percent Of Lake Michigan Chinook Reproduced Naturally
At least 50 percent of chinook salmon found in Lake Michigan over the last five years have been naturally reproduced, according to the Milwaukee Journal Sentinel. Chinooks have shown that they are very good at producing large...
- Posted September 15, 2015
Ten-Week Study Of Salmon Development Charts Effects Of Freshwater Acidification
The effects of ocean acidification on fish have been widely studied, but investigations looking at the impacts of freshwater acidification have been fewer and far between.
- Posted July 15, 2015
Freshwater Acidification Affects Development Of Pink Salmon
Scientists at the University of British Columbia studying the effects of acidification have found that freshwater fish may be vulnerable just like fish in the ocean, according to a release. The investigation is in contrast to many...
- Posted July 8, 2015
Canada’s OTN and NOAA are building a global telemetry network to better understand aquatic animal movement
Anadromous fish, such as salmon, sturgeon and striped bass, travel between freshwater and marine habitats at various points in their life, making them difficult species to track and study.
- Posted June 30, 2015
Michigan DNR Continues Chinook Salmon Fin Clipping In Lake Superior
All manner of salmon, both Pacific and Atlantic varieties, have made their home in the Great Lakes. Today, many anglers prize Chinook salmon above the others for their large size — it’s not uncommon to find individuals...
- Posted May 14, 2015
Study reveals remarkably high Chinook salmon mortality in BC’s Strait of Georgia
Chinook salmon are a major target of commercial and recreational anglers, but their popularity has contributed to the species’ decline in many places where the fish once thrived. Chinook fisheries in British Columbia’s Strait of Georgia essentially...
- Posted March 3, 2015
Smaller acoustic tags improve salmon tracking
Scientists at the Pacific Northwest National Laboratory have developed lightweight acoustic tags that are each about the size of two grains of rice, according to Gizmag. The small tags will be used to better track the movements...
- Posted February 19, 2015
