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Data Deficient (DD)

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Biology

Freshwater, in creeks and rivers (Ref. 89241). A non-parasitic lamprey. At about 4 years of age transforms from ammocoete in fall, moves downstream into lakes over winter; spawns the following spring and summer in shallow of lakes and rivers (Ref. 43939). Spawning period between 11 June and 25 September in Naknek River Basin, Alaska. Fecundity, 2,188-3,477 eggs/female. Egg length, 0.9 mm (Ref. 89241).

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