Fig. 1

Map figure of study area: Matlacha Pass and Blackwater Bay, southwest Florida, USA. Large map shows the location of Matlacha Pass and Blackwater Bay alongside Hurricane Ian’s track as it passed north-northwest across peninsular Florida, increasing in intensity to Category 4 on the Saffir-Simpson scale before making landfall and crossing Matlacha Pass. Inset maps show location of each site (top: Matlacha Pass; bottom: Blackwater Bay) and distance from storm track. Map created using ArcGIS Pro version 2.9.2.