1. 1) G. J. H. Lindsay: Distribution and function of digestive tract chitinolytic enzymes in fish. J. Fish. Biol., 24, 529-536 (1984).
2. 2) M. Matsumiya and A. Mochizuki: Distribution of chitinase and β-N-acetylhexosaminidase in the organs of several fishes. Fisheries Sci., 62, 150-151 (1996).
3. 3) F. Buchholz: Moult cycle and seasonal activities of chitinolytic enzymes in the integument and digestive tract of the antarctic krill, Eu-phausia superba. Polar Biol., 9, 311-317 (1989).
4. 4) M. Kono, T. Matsui, C. Shimizu, and D. Koga: Purifications and some properties of chitinase from the liver of a prawn, Penaeus japonicus. Agric. Biol. Chem., 54, 2145-2147 (1990).
5. 5) W. C. Jung, L. C. Hsing, T. H. Ling, C. C. Tien, and S. H. Yi: Purification and properties of chitinase from hepatopancreas of freshwater giant shrimp. Zhongguo Nongyu Huaxue Huizhi, 29, 154-163 (1991).