This tabular dataset provides all catch records for a fish trapping study conducted in Salt River Bay National Historical Park and Ecological Preserve, St. Croix, U.S. Virgin Islands (USVI). From May 2018 to June 2019 fish traps were deployed along the mangrove fringe on the east and west sides of Triton Bay and Sugar Bay within the Salt River Bay estuary. Catch was quantified and recorded in this data table for future use by researchers and managers. Records include taxonomic identification, abundance, and length.