Long-term passive acoustic recorders were used to monitor s pawning habitat use by grouper on Riley's Hump, a fish aggregation site located within the Tortugas South Ecological Reserve. Recordings were made at 10 minute intervals at up to seven sites duri...

This study showed that large prefabricated units and concrete rubble patch reefs, placed as artificial marine habitats on sand bottom, greatly enhance the abundance, diversity, and biomass of fish in an area. Densities of individuals and biomass were foun...