1. 1) E. Okuma and H. Abe: Total D-amino and other free amino acids increase in the muscle of crayfish during seawater acclimation. Comp. Biochem. Physiol., 109A, 191-197 (1994).
2. 2) E. Okuma, E. Fujita, H. Amano, H. Noda, and H. Abe: Distribution of free D-amino acids in the tissues of crustaceans. Fisheries Sci., 61, 157-160 (1995).
3. 3) E. Okuma and H. Abe: Effects of starvation and D- or L-alanine administration on the free D- and L-alanine levels in the muscle and hepatopancreas of the crayfish Procambarus clarkii. Comp. Biochem. Physiol., 120A, 681-686 (1998).
4. 4) E. Okuma, K. Watanabe, and H. Abe: Distribution of free D-amino acids in bivalve mollusks and the effects of physiological conditions on the levels of D- and L-alanine in the tissues of the hard clam Meretrix lusoria. Fisheries Sci., 64, 606-611 (1998).
5. 5) E. Fujita, E. Okuma, and H. Abe: Occurrence of alanine racemase in crustaceans and the changes of the properties during seawater acclimation of crayfish. Comp. Biochem. Physiol., 116A, 83-87 (1997).