The accuracy of the two hot spot maps were then evaluated using a second subset of debris collection locations randomly selected to be excluded from the initial spatial analyses. Of the total 40 debris collection locations, 25% (n = 10) were located within the high probability zone; while an additional 70% (n = 28) were located in the medium probability zone. For the restricted hot spot map, 19 of the excluded debris collection sites occurred in hard bottom habitat types. Of these 19 collection sites, 100% were located within the high probability zone.