Share

Warm Weather Blamed for King Salmon Die-Off

July 27, 2013

Soggydan/flickr

King salmon in Issaquah Creek in Issaquah, Wash.

About 1,100 king salmon died returning to a hatchery in Southeast, and officials suspect the cause was warm weather.

KFSK reports the fish died sometime last week at the Blind River rapids on southern Mitkof Island, south of Petersburg. The fish were returning to the Crystal Lake Hatchery.

Alaska Department of Fish and Game sportfish biologist Doug Fleming said he found the dead fish after last week's warm weather, when temperatures were in the 80s.

He suspects a combination of factors led to the die-off, including hot water, low oxygen levels in the water and a large number of fish trapped at Blind Slough.

Fleming says they were expecting 1,800 adult kings to return this year. Officials will have a better estimate later this year of how many survived.

MORE: Deadly Fish

Surgeonfish

Surgeonfish

These fish have a switchblade embedded in their tail, which could slash a swimmer and lead to amputation or a life-threatening loss of blood. (Photo: Wikimedia commons)

  • Surgeonfish
  • Greenland Shark
  • Giant Snakehead
  • Goliath Grouper
  • Atlantic Goosefish
  • Wallago Attu Catfish
  • Payara
  • Flathead Catfish
  • Giant Sawfish
  • Pacu

Featured Blogs

Hurricane Science Legend Dr. Robert Simpson Dies at Age 102

By Dr. Jeff Masters
December 19, 2014

Dr. Robert Simpson, one of the originators of the familiar Saffir-Simpson scale, passed away peacefully in his sleep today at the age of 102. He was the director of the National Hurricane Center (NHC) from 1967 - 1974.

November 2014 Global Weather Extremes Summary

By Christopher C. Burt
December 18, 2014

November was globally the 7th warmest such on record according to NOAA and 8th according to NASA (see Jeff Master’s blog for more about this). It was a cold month in the U.S. with some phenomenal lake-effect snowstorms. A powerful storm, dubbed a ‘Medicane’ formed in the Mediterranean Sea. Deadly floods occurred in Morocco, Italy, and Switzerland. It was the warmest November on record for Australia, Italy, Austria and much of Southeast Asia.Below are some of the month’s highlights.

Live Blog: Tracking Hurricane Arthur as it Approaches North Carolina Coast

By Shaun Tanner
July 3, 2014

This is a live blog set up to provide the latest coverage on Hurricane Arthur as it threatens the North Carolina Coast. Check back often to see what the latest is with Arthur. The most recent updates are at the top.

Tropical Terminology

By Stu Ostro
June 30, 2014

Here is some basic, fundamental terminology related to tropical cyclones. Rather than a comprehensive and/or technical glossary, this represents the essence of the meaning & importance of some key, frequently used terms.

2013-14 - An Interesting Winter From A to Z

By Tom Niziol
May 15, 2014

It was a very interesting winter across a good part of the nation from the Rockies through the Plains to the Northeast. Let's break down the most significant winter storms on a month by month basis.

What the 5th IPCC Assessment Doesn't Include

By Angela Fritz
September 27, 2013

Melting permafrost has the potential to release an additional 1.5 trillion tons of carbon into the atmosphere, and could increase our global average temperature by 1.5°F in addition to our day-to-day human emissions. However, this effect is not included in the IPCC report issued Friday morning, which means the estimates of how Earth's climate will change are likely on the conservative side.