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Program RELEASE is a general program that computes estimates of treatment effect, survival, and capture probabilities from release-recapture data for one or more groups under one of the four sampling protocols.
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Burnham, K.P., D.R. Anderson, G.C. White, C. Brownie and K.H. Pollock. 1987. Design and Analysis Methods for Fish Survival Experiments Based on Release-Recapture. Am. Fish. Soc. Monogr. 5