California Chinook salmon populations have fallen to their lowest levels in years, according to new estimates released by state and federal scientists—a decline that could trigger a shutdown of the commercial and recreational ...
Plants & Animals
Mar 3, 2023
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30
By returning to spawn in the Sacramento River at different ages, Chinook salmon lessen the potential impact of a bad year and increase the stability of their population in the face of climate variability, according to a new ...
Plants & Animals
Feb 27, 2023
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17
Struggling salmon populations could get some help from the sky. A Washington State University study showed that drone photography of the Wenatchee River during spawning season can be effective in estimating the number of ...
Plants & Animals
Oct 19, 2022
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16
As marine species continue to decline worldwide, the southern resident killer whale population—which now stands at 75 individuals—along the west coast of North America, has baffled scientists who are trying to understand ...
Plants & Animals
Sep 21, 2022
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30
A team of scientists, including one from Oregon State University, concluded in a recent paper that breaching four dams in the Lower Snake River Basin in Washington provides the best and only reasonable opportunity to promote ...
Plants & Animals
Jul 27, 2022
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10
Research led by the University of Southampton has revealed that an abrupt change in climate conditions in the North Atlantic around 800 years ago played a role in a decline in Atlantic salmon populations returning to rivers. ...
Plants & Animals
Jun 8, 2022
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39
New research led by the University of Maine finds that river restoration efforts and increasing river herring runs may help lessen the impacts that seals have on salmon. Whole ecosystem restoration may be helping predators ...
Plants & Animals
Mar 16, 2022
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4
A great many packages of sliced and vacuum-sealed smoked salmon find their way into Danish shopping carts every year. The vast majority of this smoked salmon is sourced from Norwegian aquaculture farms.
Other
Dec 6, 2021
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9
Researchers from Simon Fraser University's Salmon Watershed Lab have found that recent declines of Pacific salmon and trout are associated with 40 years of changes in their combined marine and freshwater ecosystems.
Plants & Animals
Oct 21, 2021
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4
A growing demand for cleaner fish in salmon farms raises concerns about overfishing and human-mediated geneflow to wild populations. A recent study reveals that up to 20 percent of the local populations of corkwing wrasse ...
Plants & Animals
Apr 20, 2021
0
10
