When warmwater fish species like bass, walleye and crappie that are not native to the Pacific Northwest, but prized by some anglers, overlap with baby spring chinook salmon in reservoirs in Oregon's Willamette River they ...
Plants & Animals
Sep 23, 2021
0
246
The North Platte River in southern Wyoming has been so low in places lately that a toddler could easily wade across and thick mats of olive-green algae grow in the lazy current.
Ecology
Sep 6, 2021
0
15
A University of Liverpool researcher has discovered that fish can bend their spines and heads upwards, despite having different anatomy from humans and other land-dwelling vertebrates.
Plants & Animals
Aug 25, 2021
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244
In an era of increasing drought and nearly back-to-back wildfires, state conservationists have been working overtime in the San Gabriel Mountains to rescue frogs, fish and other species facing potential oblivion by rounding ...
Ecology
Jun 21, 2021
0
4
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 ...
Plants & Animals
Feb 18, 2021
0
109
A team of biologists from RUDN University developed a hibiscus-based dietary supplement for trout that makes the fish less sensitive to ammonia pollution and more stress-resistant. The results of the study were published ...
Plants & Animals
Dec 7, 2020
0
7
A biologist from RUDN University has found the most beneficial concentration of tryptophan for rainbow trout. When added to the diet of the fish, this amino acid supports the immune system and reduces oxidative stress in ...
Plants & Animals
Sep 7, 2020
0
7
In the early 1900s, brown trout and rainbow trout were introduced to southern South America for recreational fishing and early aquaculture initiatives. About 40 years later, American beaver were introduced in the same region ...
Evolution
Sep 2, 2020
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243
In the Grand Canyon reach of the Colorado River, two species play an outsized role in the fate of mercury in the aquatic ecosystem, and their numbers are altered by flood events. So reports new research, published in Science ...
Environment
May 15, 2020
4
226
Mucosal surfaces protect organisms from external stressors and disease. Bacteriophages, viruses that infect bacteria, have been shown to preferentially bind to mucosal surfaces. This has been suggested to provide an extra ...
Cell & Microbiology
Nov 25, 2019
0
15
