Weed barrier trial at Chena Lake
SCUBA crew for Elodea control trials
Elodea in ice
Elodea in spring
Green growth in ice covered by dead layer
Survey crew measuring depth
Lowering the quadrat
Survey crew viewing underwater vegetation
Elodea at mouth of Chena River in Tanana
Rooted Elodea at mouth of Chena River
Tall Elodea in Chena Lake
Bagged Elodea from control trial

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