Abstract
Bermuda is home to reef systems
threatened with low colonization rates and increased exposure to
disturbance. The island is home to reefs with varying environmental
factors including wave action, depth, pollution, natural disturbance, and
disease. While specific species and specific disturbance regimes have
been studied at multiple sites on one shore, this paper assesses the
affect of all of these factors on the coral diversity and community
structure at different shores. I compared biodiversity between five reefs
using density and percent cover data from 21 transect measurements. The
identifiable taxa were grouped into hard corals (Diplora strigosa, Diplora
labyrinthiformis, Porites
astreoides) and soft corals
(Briareum asbestinum,
Gorgonia vantalina,
Plexaurella
sp.). Despite the small
dataset, there were conclusive results. Increased wave action, and water
depth (up to 6 meters in this study) increase biodiversity. Pollution and
human disturbance leading to low flow and sedimentation are disturbances
with stronger effects on biodiversity then small large scale natural
disturbances like Hurricane Fabian.
