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The Chena River and the beavers that inhabit it.

The Chena River and the beavers that inhabit it. Why does ADF&G keep track of the lower Chena River beaver population?. Beavers can be a nuisance. Chew down trees in yards (wild trees and ornimentals ). Plug culverts. Cause flooding.

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The Chena River and the beavers that inhabit it.

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  1. The Chena River and the beavers that inhabit it.

  2. Why does ADF&G keep track of the lower Chena River beaver population? • Beavers can be a nuisance. • Chew down trees in yards (wild trees and ornimentals). • Plug culverts. • Cause flooding. • No general trapping seasonon the lower Chena River, but ADF&G discretionary permits can be issued to harvest beaver. These are generally nuisance permits or educational permits.

  3. Beaver survey area • Mouth of Tanana River up Chena River to the mouth of Little Chena River. • 25 miles of river. • Surveys are conducted at end of September or beginning of October. • Fresh feed caches are easily spotted where beavers have lodges.

  4. Area surveyed

  5. Located Beaver Huts

  6. Population • Average 25 beavers huts (not including Noyes slough) • Average 6-10 beavers per hut • 150-250 beavers • 4 to 6 young produced from each hut annually • Lots of immigration and emigration from the upper Chena River. • Lots of young beaver looking for new homes in the river and surrounding bodies of water.

  7. Being a nuisance • ADF&G receives approximately 30-50 nuisance beaver calls per year. • Nuisance permitted trappers harvest 15-20 beavers per year. • Educational permits (ATA) harvest 10-15 beavers per year. • Several huts in the heart of the city are left untrapped for viewing purposes unless a real problem arises.

  8. In Conclusion • ADF&G tries to keep track of where all the active beaver huts are on the lower Chena River. • We mitigate nuisance problems • We educate landowners along the river on how to protect property. • We issue trapping permits to reduce beaver numbers in problem areas. • We maintain viewing opportunity in popular areas.

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