Estimating population parameters such as survival and population growth is critical for the monitoring of at-risk populations of marine mammals. We conducted monthly boat-based photo-identification surveys in the Mississippi Sound and eastern Louisiana waters during January 2011-June 2015 to assess the status of the Mississippi Sound, Lake Borgne, and Bay Boudreau Tursiops truncatus (Common Bottlenose Dolphin) stock. Using the resulting mark-recapture data, we estimated the survival and population growth rates using a reverse capture-recapture method. The estimated monthly survival probability over this period of time was 0.969 (95% CI: 0.964-0.974). The final monthly population growth rate was then estimated to be 1.005 (95% CI: 0.998-1.013), which suggests a relatively stable population.
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics