Appendix D. Optimization of the size-dependent dispersal model.

Optimization of the size-dependent dispersal model

Appendix B. Multivariate analysis of δ13C and δ18O signatures of fish otoliths.

Multivariate analysis of δ13C and δ18O signatures of fish otoliths

Appendix A. Description of the spatial simulation model.

Description of the spatial simulation model

Appendix C. Combined results from the spatial simulation model and the visual census survey for the best fit of the observed fish size distributions in correspondence with a median dispersal distance of 10.7 km/yr.

Combined results from the spatial simulation model and the visual census survey for the best fit of the observed fish size distributions in correspondence with a median dispersal distance of 10.7 km/yr

Map of the study area.

<p>Reef contours (approx. 17 m depth) are indicated by thick black lines. Hatched area indicates location of the mangrove forest. SGK  =  sampling site at the shoreline seagrass bed at Kunduchi. Nearshore reefs fringe the island of Mbudya, while offshore reefs are located at ‘Far Reef’ and ‘Gold Reef’.</p

Appendix E. Optimal fitted model for observed fish counts on Bermuda and Grand Cayman.

Optimal fitted model for observed fish counts on Bermuda and Grand Cayman

Results of a one-way ANOVA on otolith δ¹³C and δ¹⁸O, respectively, of <i>Lethrinus harak</i>, <i>Lethrinus lentjan</i>, and <i>Lutjanus fulviflamma</i> for three potential juvenile habitats.

<p>Non-significant values (p>0.05), which indicate no differences among habitats, are indicated in bold. Due to non-significant post-hoc tests for otolith δ¹³C and δ¹⁸O of <i>L. lentjan</i> between mangrove and seagrass these two habitats had to be combined. CR  =  coral reef; SG  =  seagrass bed; MG  =  mangroves.</p

The number of individuals collected per habitat and species per year.

<p>NCR  =  nearshore coral reefs; OCR  =  offshore coral reefs; SG  =  seagrass bed; MG  =  mangroves; size range  =  total fish length.</p

Figure 2

<p>Mean (± SE) otolith δ¹³C and δ¹⁸O from the outer otolith margins of juvenile fish collected from mangroves (Mg) and seagrass (Sg) habitats, from the inner (juvenile) parts of otolith of adult fish collected from nearshore (NCr) and offshore (OCr) reefs, and from the outer otolith margins of coral reef adults (Cr), averaged per habitat for each of the species: a) <i>Lethrinus harak</i>, b) <i>Lethrinus lentjan</i>, and c) <i>Lutjanus fulviflamma</i>.</p

Estimated contribution (% ± SD) from Maximum Likelihood Analysis of different potential juvenile habitats to adult nearshore and offshore reef populations of three reef fish species, and large juvenile (>15 cm TL) <i>L. harak</i> in seagrass beds.

<p>Classification success is based on a quadratic discriminant function analysis using jack-knife classification to examine the success of assigning individuals to their known origin. Both analyses are based on δ¹³C and δ¹⁸O values combined. Because seagrass and mangrove habitat signatures did not differ for <i>L. lentjan</i>, they had to be combined for this analysis. CR  =  coral reef; SG  =  seagrass bed; MG  =  mangroves.</p