Extreme Heat Is Killing Off Thousands Of Fish In Alaska

Extreme Heat Is Killing Off Thousands Of Fish In Alaska reports Aviva Shen atClimate Progress. Unusually hot, dry weather in Alaska is wreaking havoc on fisheries, as thousands of fish perish in overheated waters. Last month, over 1,000 king salmon died on their way up to their hatchery due to water temperatures around 80 degrees Fahrenheit and lack of oxygen. That’s more than half of the salmon expected to return to the hatchery this season.  Earlier this summer, another hatchery lost hundreds of grayling and rainbow trout in a lake where water temperatures reached 76 degrees. Alaska’s heat wave broke records in early August, and officials observed that the die-off coincided with the hottest weather of the season. While die-offs are not uncommon, the magnitude of the die-off surprised some biologists.Besides the sheer heat, lack of rainfall is also contributing to the die-off. Many streams are too low to accommodate the fish waiting at the mouths, which essentially suffocate as more fish get backed up. Alaska’s commercial fisheries are among the largest in the world. Salmon is the state’s largest export product after oil and natural gas.


Join the swelling numbers of voters TELLING Congress they’ll vote for Clean Energy candidates here: http://signon.org/sign/we-are-the-clean-99?source=c.em.cp&r_by=487176 . This is an ongoing campaign (the next Congressional election is in 2 years!) so please, spread the word. It’s our way of telling Congress that a strong clean energy voting bloc is out there. This is how YOU can make a difference.


For more on Climate Change, check out my weekly column at the HuffingtonPost, Climate Change This Week : http://www.huffingtonpost.com/author/index.php?author=mary-ellen-harte


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About melharte

Mel (Mary Ellen) Harte is a biologist (PhD) and climate change educator. She co-authored the free online book, COOL THE EARTH, SAVE THE ECONOMY, available at www.CoolTheEarth.US, and writes the CLIMATE CHANGE THIS WEEK column at the HuffingtonPost. Living summers in the alpine Rockies, she is on the frontlines of watching what climate change can do. Her diagnostic digital photographs of wildflowers have appeared in numerous publications.
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