Cellular responses in rainbow trout (Oncorhynchus mykiss) reared in tritiated water and/or fed organically bound tritium.

For the evaluation of biological effects of low level chronic tritium exposure in fish, rainbow trout (Oncorhynchus mykiss) were exposed to tritiated water and/or fed a diet spiked with tritiated essential amino acids. Differences in fatty acid composition were noted following the tritium exposures. In addition, changes in response to a subsequent acute high dose of gamma radiation delivered in vitro were noted when evaluating DNA repair activity and fatty acid composition.