California sea lions killed to protect migrating fish
Authorities in the western US state of Oregon have euthanized four sea lions in the last month as part of a program to protect salmon runs and steelhead trout that are at risk of going extinct.
Authorities in the western US state of Oregon have euthanized four sea lions in the last month as part of a program to protect salmon runs and steelhead trout that are at risk of going extinct.
Ecology
Jan 12, 2019
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19
Hundreds of surrogate "fish" will be put to work at dams around the world through an agreement between ATS—Advanced Telemetry Systems—and the Department of Energy's Pacific Northwest National Laboratory (PNNL) to improve ...
Plants & Animals
Jan 9, 2019
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4
Scientists have published a novel method for counting Pacific salmon—analyzing DNA from the slime the fish leave behind in their spawning streams.
Ecology
Jan 3, 2019
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216
The ability to smell is critical for salmon. They depend on scent to avoid predators, sniff out prey and find their way home at the end of their lives when they return to the streams where they hatched to spawn and die.
Ecology
Dec 18, 2018
4
71
Once spring-run chinook salmon disappear, they are not likely to re-emerge, indicates genetic analysis of the revered wild fish in a study led by the University of California, Davis. Prompt conservation action could preserve ...
Ecology
Dec 4, 2018
0
160
Fish stocking as a fisheries compensation method in hydropower operations no longer meets latest legal and scientific requirements, according to a new study from the University of Eastern Finland. Published in Water International, ...
Ecology
Nov 30, 2018
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4
A study by Simon Fraser University aquatic ecologists Emma Atkinson and John Reynolds reveals that young salmon may jump out of water to remove sea lice.
Ecology
Aug 13, 2018
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7
An audit of British Columbia fish-processing plants sparked by gory video of a pipe spewing bloody water into the Salish Sea has found that more than 70 percent of plants audited are out of compliance with environmental regulations, ...
Environment
Jul 9, 2018
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7
Even small amounts of running water—less than a gallon per second—could mean the difference between life or death for juvenile coho salmon in coastal California streams, according to a new study published in the journal ...
Ecology
Jun 5, 2018
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14
For the first time researchers studying a deadly virus modeled how it spreads to young trout and salmon in the waters of the Columbia River Basin, showing that migrating adult fish are the main source of exposure.
Ecology
Apr 20, 2018
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9