Demographics and 2008 Run Timing of Adult Lost River (Deltistes luxatus) and Shortnose (Chasmistes brevirostris) Suckers in Upper Klamath Lake, Oregon (Paperback) (ISBN-13: 9781497346239)

We used capture-recapture data to assess population dynamics of endangered Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon. The Cormack-Jolly-Seber method was used to estimate apparent survival probabilities, and a temporal symmetry model was used to estimate annual seniority probabilities. Information theoretic modeling was used to assess variation in parameter estimates due to time, gender, and species. In addition, length data were used to detect multiple year-class failures and events of high recruitment into adult spawning populations. Survival of adult Lost River and shortnose suckers varied substantially across years. Relatively high annual mortality was observed for the lakeshore-spawning Lost River sucker subpopulation in 2002 and for the river spawning subpopulation in 2001.

Author: U. S. Department of the Interior
ISBN-10: 1497346231
ISBN-13: 9781497346239
Publisher: Createspace Independent Publishing Platform
Language: English
Published: 03/30/2014
Pages: 40
Format: Paperback
Weight: 0.26lbs
Size: 11.02h x 8.50w x 0.08d