Observed Presence of Alien and Invasive Reef Fish, 2000-2013 - Hawaii

This raster data layer represents the presence of alien and invasive reef fish species within 2 km of an observation, including roi or bluespotted grouper (Cephalopholis argus), ta'ape or bluestripe snapper (Lutjanus kasmira), and to'au or blacktail snapper (Lutjanus fulvus). Original data were queried from the University of Hawaii at Manoa (UH) Fisheries Ecology Research Laboratory (FERL) Hawaii Fish and Benthic Biological Synthesis Database (2000-2013), which is synthesized from NOAA, State of Hawaii Division of Aquatic Resources (DAR), Coral Reef Assessment and Monitoring Program (CRAMP), The Nature Conservancy (TNC), and other surveys conducted across the Main Hawaiian Islands.

These data should be considered presence only. Areas with no presence may be due to lack of survey data or observed absence. Raster values of 1 represent areas within 2 km of positive invasive fish observations while values of 0 represent the remaining area. The cell size is 500 m and the area of interest is from the shoreline of the Main Hawaiian Islands extending 5 km offshore and 1 km inshore.