c fish Mean concentrations of !37cs in the flesh of reef and pelagi Table 7. from different islands and during different collection periods. 137¢s (pCi/kg wet wt) Mean Range 265 + 1112 130-460 Number of samples Island locator W B-1 181 + 1388 9 B-5 B-6 | B-10 12 1: 66 + 702 12-240 3 a 26 + 184 14-50 24 + 204 7-62 B-12 6 B-13 2 B-17 B-23 Pelagic species 40-370 16 + 73 11-21 6 42 + 284 12-90 2 33 + 164 20-45 13 164 + 1130 60-380 All reef fish (all lagoon locations) 1977-1978 28 119 1980-1981 1] 146 1982-1984 12 97 1977-1984 51 113 @ Mean concentration for all mullet, surgeonfish, goatfish, and parrotfish collected between 1977 and 1984. Mean concentration from all pelagic species collected between 1977 and . 1984. the trophic position of the fish and their muscle burden of '3/Cs. The largest fraction of the !3/Cs is found in the muscle tissue of the fourth- trophic-level level fish, fish, mullet. snapper, and the lowest fraction in the second-trophicHowever, surgeonfish, also a second-trophic-level species, have a larger fraction of the total !37cs in muscle tissue than is found in the third-trophic-level fish, goatfish. The data on the concentrations of !37cs in the muscle tissue of fish are presented here in several ways to help in the interpretation of results. Table 7 contains a summary of the mean and range of !37cs concentrations (no corrections were made for radioactive decay) in the muscle tissue of reef fish 5000561 13