Fig. 4
Modern transect results from Blackwater Bay, Florida. From top to bottom: % organic matter (OM) using loss-on-ignition, δ13Cbulk (‰), mean grain size (Φ), and relative foraminifera abundance of species along a mangrove forest transect relative to mean tide level that started near open water and moved inland (S1–S12) at Blackwater Bay. Results show Hurricane Ian overwash deposit has low organic matter content (mean: 16%), high C isotopic values (mean: -15.1 ‰), and coarse sediment (mean 5.65 Φ). Foraminiferal abundances in Ian’s overwash deposit at the Blackwater site exhibit a high abundance of calcareous species (95 ± 6%) and high species diversity (16 species on average) and in specimen counts (586 specimens/cc on average).
