Thawing permafrost and river bank collapsed on the Cheenik Creek.
Toby Anungazuk Jr. writes,
The permafrost is thawing on the river banks and has caused a lot of erosion since about 2007. The bank has collapsed causing the channel to be blocked with dirt and small islands of plants. The water is much dirtier then it usually is. It used to be clear and you could see the fish. In 2007 the water was usually the color of tea. Now it is more often like coffee. The salmon is late coming into the river this year. There are also fewer salmon. I am wondering if they are waiting for the water to clear before they come into the river. We are monitoring river conditions using a Hobo logger so hopefully, we will have good data soon. We are also concerned about the water used by camps for drinking and by people who haul water from the river for their home use. There are a lot more big willow now in the river and also a lot more beaver.
LEO says:
This observation will be forwarded to the salmon research community in Alaska with the intent of learning more about the relationships between water quality and salmon and other fish in Arctic rivers. It will also be shared with Norton Sound Health Corporation regards beaver and prevention of waterborne illness in rivers used by residents for drinking water.