Topic Reading-Vol.2688-8/21/2019
0422-27-5366
〒180-0006 東京都武蔵野市中町2-3-5 IIHA武蔵野1階
電話受付/月〜金 9:00-18:00
Topic Reading-Vol.2688-8/21/2019
0422-27-5366
〒180-0006 東京都武蔵野市中町2-3-5 IIHA武蔵野1階
電話受付/月〜金 9:00-18:00
Topic Reading-Vol.2688-8/21/2019
Dear MEL Topic Readers,
The water is so hot in Alaska it’s killing large numbers of salmon
The salmon usually spend their early life in rivers and then swim out to sea to live their adult lives. When they are matured, they return to their natal rivers and swim up to the places where they were born without eating. There, they spawn on gravel beds and die, and the salmon life cycle begins over again, which is called the salmon run. This is when grizzly bears and eagles catch salmons for their feast.
So, if matured female salmon die with healthy eggs still in their bellies in the river, it could affect their future population. This is what is seen this summer in Alaska’s rivers where water temperatures have reached over 27 degrees Celsius, over three degrees higher than the highest temperatures in normal years. At this temperature, salmon cannot get enough oxygen and lose energy to survive or spawn. Even though salmon are resilient, this level of extreme water temperatures might cause effects on their life cycle in the long run.
Enjoy reading the article and learn how global warming or extreme weather condition could affect wildlife in Alaska.
https://edition.cnn.com/2019/08/16/us/alaska-salmon-hot-water-trnd/index.html
電話：0422-27-5366
住所 〒181-0013 東京都三鷹市下連雀3-33-13 三鷹第二ビル101
営業時間：電話受付13時～17時 定休日：日曜日・月曜日