24 



List of Tables 



Table 1. Summary of survey effort, 1988-1993. 



Table 2. Annual Tampa Bay dolphin population size estimates. 



Table 3. Matrix of number of dolphins identified in one year that were seen in 

 previous or subsequent years. 



Table 4. Young-of-the-year proportions of the mark-proportion annual population 

 estimates. 



Table 5. Summary of known mortalities based on records of stranded dolphins in the 

 three counties encompassing the Tampa Bay study area. 



Table 6. Estimated proportion of the Tampa Bay dolphin population that is in flux 



each year Annual immigration, emigration, and transience rates. See text 

 for explanation of rate derivations. 



List of Figures 



Figure 1 . Tampa Bay study area. 



Figure 2a. Locations of sightings during 1988-1993: Groups of 1-5 dolphins. 



Figure 2b. Locations of sightings during 1988-1993: Groups of 6-10 dolphins. 



Figure 2c. Locations of sightings during 1988-1993: Groups of 11-15 dolphins. 



Figure 2d. Locations of sightings during 1988-1993: Groups of 16-20 dolphins. 



Figure 2e. Locations of sightings during 1988-1993: Groups of > 20 dolphins. 



Figure 3. Survey effort and sighting results. 



Figure 4a. Frequency distribution of resightings: 1988. 



Figure 4b. Frequency distribution of resightings: 1989. 



Figure 4c. Frequency distribution of resightings: 1990. 



Figure 4d. Frequency distribution of resightings: 1991. 



Figure 4e. Frequency distribution of resightings: 1992. 



Figure 4f. Frequency distribution of resightings: 1993. 



Figure 5. Annual catalog size and numbers of additions to the catalog. 



Figure 6. Relationships between survey effort and population size estimates. 



Figure 7. Comparison of Method 2 (mark-proportion) and Method 3 (mark- 



resight) abundance estimates, with 95% CLs. The CLs are not directly 



