Abalone I: Analyzing mark-recapture-recovery data incorporating growth anddelayed recovery

Abalone are semimobile marine gastropods that form the basis of Australia's second most valuable fishery. A site off the coast of Port Arthur. Tasmani a, was visited on six occasions. On each occasion, any unmarked live abalon e found were marked with a unique identification number and were recorded. Any previously marked abalone found had its identification number and wheth er or not it was still alive recorded. This results in integrated mark-reca pture-recovery data, as in Catchpole et al. (1998, Biometrics 54, 33-46). D uring the study period, abalone grew in size, and we model the survival of individuals as a function of their size? estimated from a fitted growth cur ve. The shells of dead animals are long lasting, and we extend existing met hodology to allow for the possibility that an animal found dead may have be en dead but overlooked for several visits.