Posts for tag "salmon"
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
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 May 13, 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
Intensively Monitored Watersheds Show Restoration Benefits
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
Alaskan salmon stressed by warming streams, research shows
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 16, 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
NOAA research links river flow variability with fluctuations in Chinook populations
Over the past 60 years, a changing climate has caused increased flow variability in waterways throughout the Puget Sound region. The endangered Chinook salmon that populate those waters have suffered from lessening productivity over the past couple...
- Posted February 16, 2015
Tribes to study salmon restoration above Grand Coulee Dam
Native American tribes in Washington and Idaho are hoping to restore salmon runs above the Grand Coulee Dam, according to the Associated Press. They are proposing a feasibility study to judge how successful any potential restoration can...
- Posted February 9, 2015
Highway runoff lethal to young coho salmon; filters could help
Some anglers swear that the fish bite better after a storm, but in streams that drain stormwater from nearby roadways, a bit of rain could be deadly to anything living within. Research from Washington State University, NOAA...
- Posted January 26, 2015
USGS and Colville Tribes use eDNA sampling to monitor endangered Chinook salmon
The use of discarded genetic material as an indicator of a species’ presence has grown in popularity among scientists, resource managers and other monitoring professionals. The technology is relatively new, however, and its potential is still being...
- Posted January 15, 2015
Shifting salmon migration proves no obstacle to egg-eating Dolly Varden, study finds
When changing climate drives one species to shift the timing of its entire life cycle, organisms dependent on it must adjust or suffer in its absence. The repercussions of altered salmon migration may be negatively impacting other...
- Posted January 6, 2015
California Fish and Wildlife works to rescue salmon in Yolo Bypass
The California Department of Fish and Wildlife is catching salmon in the Yolo Bypass, one of two flood bypasses in the Sacramento Valley, according to Capital Public Radio. The work is meant to relocate the fall-run salmon...
- Posted December 22, 2014
