Dennis,-G.D.; Bright,-T.J. The impact of a ship grounding on the reef fish assemblage at Molasses Reef, Key Largo National Marine Sanctuary, Florida. PROCEEDINGS-OF-THE- SIXTH-INTERNATIONAL-CORAL-REEF-SYMPOSIUM,-TOWNSVILLE,- AUSTRALIA,-8th-12th-AUGUST-1988.-VOLUME-2:-CONTRIBUTED- PAPERS-MINI-SYMPOSIUM-1-TO-10-14. Choat,-J.H.;Barnes,- D.;Borowitzka,-M.A.;Coll,-J.C.;Davies,-P.J.;Flood,- P.;Hatcher,-B.G.;et-al.-eds.. 1988. pp. 213-218. Reef fish recolonization of a coral reef area damaged by a ship grounding was monitored by diver visual census for 2 years (November 1984 to November 1986). During this time impacted and control areas tended to become more similar, though they still differed detectably in species composition, community structure, and biomass as late as two years after the grounding. These differences can be attributable to damage from the grounding and not just spatial variability, as control areas were never significantly different. Further recovery of the epifaunal assemblage and an increase in spatial complexity, especially in the severely impacted area, may be necessary for the reef fish assemblage to recover to pre-impact levels. This may take several more years based on epifauna recovery rates of corals and alcyonarians.