A study was conducted on the South Texas Gulf Coast to evaluate archive aerial color-infrared (CIR) photography combined with supervised image analysis techniques to quantify changes in black mangrove [Avicennia germinans (L.) L.] populations over a 26-year period. Archive CIR film from two study sites (sites 1 and 2) was studied. Photographs of site 1 from 1976,1988, and 2002 showed that black mangrove populations made up 16.2%, 21.1%, and 29.4% of the study site, respectively. Photographs of site 2 from 1976 and 2002 showed that black mangrove populations made up 0.4% and 2.7% of the study site, respectively. Over the 26-year period, black mangrove had increases in cover of 77% and 467% on sites 1 and 2, respectively. These results indicate that aerial photographs coupled with image analysis techniques can be useful tools to monitor and quantify black mangrove populations over time.
J. H. Everitt, C. Yang, F. W. Judd, K. R. Summy; Use of Archive Aerial Photography for Monitoring Black Mangrove Populations. Journal of Coastal Research 1 July 2010; 26 (4 (264)): 649–653. doi: https://doi.org/10.2112/JCOASTRES-D-09-00133.1
Journal of Coastal Research