Search our collection of background (non-event) articles from news media, science journals and other sources.
The event caused a die off of up to 95% of marine life along the seabed. The Russia's Academy of Sciences announced that the mass death was due to the effects of toxins from single-cell algae. Environmentalists are conducting their own inquiries and were not yet able to confirm the official probe's findings.
Environmental campaigners said they were conducting their own inquiries and were not yet able to confirm the official probe's findings.
A broad area of yellow foam is prompting some marine biologists to blame the catastrophe on a harmful algae. However, Governor Vladimir Solodov believes the most likely explanation is a spill. Tests have shown petroleum levels four times higher and phenol levels 2.5 times above normal.
Injured surfers and large number of dead sea creatures reported in Kamchatka region. Some experts have suggested highly toxic rocket fuel could have leaked into the sea. The first test site, Radygino, is about six miles (10km) from the sea.
Organizations representing Yukon River communities are drafting a letter to Gov. Mike Dunleavy seeking a fishery disaster declaration for this summer’s
When Arctic fish are too hot, they can get lethargic, slow down, and possibly turn back during their migration to seek cooler water. When the water gets really warm they can even lose their ability to stay upright.
If carbon emissions continue at current rates, so much mercury will leach from thawing permafrost that fish in the Yukon River could become dangerous to eat within a few decades.
The findings bolster reports by Alaska subsistence fishermen that the species’ numbers have been increasing as the Arctic warms at more than double the rate of the rest of the globe.
Some biologists think the trend is related to the reduced hunting pressure from Outside hunters this year.
The shrinking of chinook, sockeye, coho and chum salmon has a negative impact on the number of eggs fish lay, but smaller body sizes also mean fewer meals, fewer commercial fishing dollars and fewer nutrients transported into rivers every year.
The size of salmon returning to rivers in Alaska has declined dramatically over the past 60 years because they are spending fewer years at sea, according to a new study led by researchers at the University of California, Santa Cruz, and the University of Alaska Fairbanks.
This year is shaping up to be the worst for sockeye salmon in the Fraser River since tracking began in 1893, according to the Pacific Salmon Commission.
Scientists have said the algae is spreading faster than anything they have seen in the remote Northwestern Hawaiian Islands.
Wild salmon have higher rates of the parasites when ocean fish farms are near, research shows
A group advocating for the conservation of wild Atlantic salmon says the number of adult salmon returning to North America rivers fell to near historic lows last year.
Scientists thought it was dead. But it’s heating water faster than the global average.
Feather, fur or fin, all creatures contend with viruses.
Even those athletes of our rivers, Atlantic salmon, usually aren’t as healthy as they look.
A study of tissue samples taken from 150 Atlantic salmon found 14 separate infectious
Changes are coming to the Arctic so fast that scientists haven't even had a chance to understand what's there
Anglers will be banned from taking their catch home on more than 100 rivers in Scotland this year - as wild salmon stocks reach 'crisis point'.
New research shows the marine heat wave that spread from California to Alaska starting in 2014 caused common murres to starve to death.
Atlantic salmon laid a record number of eggs in a Maine river last year, according to a conservation group that tracks the animal's status in the wild.
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