ISSN : 1225-3480
일본(기수)재첩 유생사육을 위한 최적조건을 파악하기 위하여 수온, 염분, 유생 수용밀도, 먹이생물 종류 및 공급량, 채묘방법에 따른 성장과 생존율을 조사하였다. 일본(기수)재첩의 부유유생은 <TEX>$24^{\circ}C$</TEX>와 <TEX>$27^{\circ}C$</TEX>에서 빠른 성장을 보였으며, <TEX>$18^{\circ}C$</TEX>와 <TEX>$21^{\circ}C$</TEX>에서 50% 이상의 높은 생존율을 보임으로서 유생 사육을 위한 적정 수온은 <TEX>$21-24^{\circ}C$</TEX>이며, 최적수온은 <TEX>$24^{\circ}C$</TEX> 이었다. 또한 염분 3 psu 이상에서 성장과 생존이 가능하였으나 적정 염분은 6-9 psu 이었다. 유생밀도별 사육시험에서 1 ml당 1-10 개체에서 높은 성장과 생존율을 보였으나 경제성을 고려한 적정 유생사육 밀도는 1 ml당 10 개체였다. 먹이생물에 따른 유생의 성장과 생존율은 Isochrysis galbana, Pavlova lutheri 및 Chaetoceros calcitrans를 혼합하여 10,000-20,000 cells/ml의 밀도로 공급하는 것이 가장 효과적이었다. 성숙유생의 채묘는 모래저질에서 성장과 생존율이 유의하게 효과적이었으며, 특히 0.25 mm 이하의 미세사질에서 높은 생존율을 보였다.
기수재첩 유생사육을 위한 최적조건을 파악하기 위하여 수온, 염분, 유생 수용밀도, 먹이생물 종류 및 공급량, 채묘방법에 따른 성장과 생존율을 조사하였다. 기수재첩의 부유유생은 24℃와 27℃에서 빠른 성장을 보였으며, 18℃와 21℃에서 50% 이상의 높은 생존율을 보임으로서 유생 사육을 위한 적정 수온은 21-24℃이며, 최적 수온은24℃ 이었다. 또한 염분 3 psu 이상에서 성장과 생존이 가능하였으나 적정 염분은 6-9 psu 이었다. 유생밀도별 사육시험에서 1 ml당 1-10 개체에서 높은 성장과 생존율을 보였으나경제성을 고려한 적정 유생사육 밀도는 1 ml당 10 개체였다. 먹이생물에 따른 유생의 성장과 생존율은 Isochrysis galbana, Pavlova lutheri 및 Chaetoceros calcitrans를 혼합하여 10,000-20,000 cells/ml의 밀도로 공급하는 것이 가장 효과적이었다. 성숙유생의 채묘는 모래저질에서 성장과 생존율이 유의하게 효과적 이었으며, 특히 0.25 mm 이하의 미세사질에서 높은 생존율을 보였다.
Delaunay, F., Marty Y., Moal J. and Samain J.F. (1992) Growth and lipid class composition of Pecten maximus (L) larvae grown under hatchery conditions. Journal of Experimental Marine Biology and Ecology, 163: 209-219.
Dos Santos, A.E. and Nascimento I.A. (1985) Influence of gamete density, salinity and temperature on the normal embryonic development of the mangrove oyster, Crassostrea rhizophorae Guilding. Aquaculture, 47: 335-352.
Enright, C.T., Newkirk, G.F. and Castell, J.D. (1986) Comparison of phytoplankton as diets for juvenile, Ostrea edulis L. Journal of Experimental Marine Biology and Ecology, 96: 1-13.
Epifanio, C.E. (1979) Comparison of yeast and algal diets for bivalve mollusca. Aquaculture, 16: 187-192.
Epifanio, C.E. and Ewart, J. (1977) Maximum ration of four algal diets for the oyster Crassostrea virginica Gmelin. Aquaculture, 11: 13-29.
Helm, M.M. and Laing, I. (1987) Preliminary observations on the nutritional value of Tahiti Isochrysis to bivalve larvae. Aquaculture, 62: 281-288.
Helm, M.M. and Millican, P.E. (1977) Experiment in the hatchery rearing of Pacific oyster larvae (Crassostrea gigas Thunberg). Aquaculture, 11: 1-12.
Hur, Y.B., Kim, T.E., Lee, S.J. and Hur, S.B. (2010) Variations in reserved nutrient consumption and growth of Pacific oyster, Crassostrea gigas larvae during starvation. Korean Journal of Fisheries and Aquatic Sciences, 43: 489-494. [in Korean]
Jung, J.Y. (1977) Ecological studies of a brackish water clam, Corbicula japonica from Nac Dong river. Nat. Fresh Water Fish Hat. of Fish. Cheong-pyong, Koera, 2: 130-140. [in Korean]
Kim, B.H., Moon, Y.B., Ryu, H.Y. and Han, S.J. (1995) The artificial seedling production of the Pacific oyster Crassostrea gigas. Bulletin of the National Fisheries Research Development, 50: 103-114. [in Korean]
Kim, J.D. and Koo, J.H. (1973) Studies on the seedling production of the ark shell Anadara broughtonii (Schrenck) in tank (1). Bulletin of the National Fisheries Research Development, 11: 71-78. [in Korean]
Kim, J.H. and Yoo, M.S. (2000) Spermatogenesis and sperm morphology in marsh clam, Corbicula leana (Prime). Bulletin of Korean Fisheries Society, 33: 171-175. [in Korean]
Kim, W.K., Lee, C.S., Lee, J.Y., Baik, K.K. and Hur, S.B. (2002a) Environmental Factors and population density of brackish water clam, Corbicula japonica on Namdae stream in Yangyang, Gangwon, Journal of Aquaculture, 15: 1-6. [in Korean]
Kim, W.K., Lee, C.S., Lee, J.Y. and Hur, S.B. (2002b) Production of artificial seedling of the brackish water clam, Corbicula japonica. Journal of Aquaculture, 15: 23-29. [in Korean]
Kim, W.K., Lee, J.Y., Lee, C.S., An, C.M., Kim, H.S. Choi, C.Y., Kim, J.W., Chung, E.Y. and Kim, B.S. (2003) Reproductive cycle and the sex ratio of Corbicula japonica from Namdae stream in Gangwon-do, Korea. The Korean Journal of Malacology, 19 : 117-124. [in Korean]
Laing, I. and Verdugo, C.G. (1991) Nutritional value of spray-dried Tetraselmis suecica for juvenile bivalves. Aquaculture, 92: 207-218.
Lee, B.H. and Jo, M.K. (1980) Study on spat collection method of scallop Patinopecten yessoensis Jay in Yeongil bay. Bulletin of the National Fisheries Research Development, 24: 59-66. [in Korean]
Lee, C.S., Park, Y.J. Hong, K.E. and Kim, Y.D. (1999) Influence of water temperature and stocking density on the growth and survival rate of geoduck clam, Panope japonica larvae. Bulletin of the National Fisheries Research Development, 55: 113-121. [in Korean]
Lee, J.S. and Kim, J.B. (1997) Systematic study on the genus Corbicula (Bivalvia : Corbiculidae) in Korea. Korean Journal of Systematic Zoology, 13: 233-246. [in Korean]
Lee, J.Y., Kim, W.K., Lee, C.S. and Chang, Y.J. (2004) Spermatogenesis and sperm ultrastructure of the marsh clam (Corbicula japonica) (Bivalvia : Veneridae). Bulletin of Korean Fisheries Society, 37: 281-286. [in Korean]
Lee, T.Y. and Chung, E.Y. (1980) Reproductive cycle of marsh clam, Corbicula fluminea (ⅴ. MULLER). Publ. Inst. Mar. Sci. National Fisheries University of Busan, 12: 47-54. [in Korean]
Loosanoff, V.L, 1950. Rate of water pumping and shell movements of oyster in relation to temperature (Abstract). Anat. Rec., 108: 620pp.
Marty, Y., Delaunay, F., Moal, J. and Samain, J.F. (1992) Changes in the fatty acid composition of Pecten maximus (L) during larval development. Journal of Experimental Marine Biology and Ecology, 163: 221-234.
Nell. J.A. and Wisely, B. (1984) Experimental feeding of Sydney rock oyster (Saccostrea commercialis). Ⅲ. Food concentration and fattening procedures. Aquaculture, 37: 197-208.
O'Connor, W.A., Nell, J.A. and Diemar, J.A. (1992) The evaluation of twelve algal species as food for juvenile Sydney rock oyster Saccostrea ommercialis. Aquaculture, 108: 277-283.
O'Connor, W.A. and Heasman, M.P. (1998) Ontogenetic changes in salinity and temperature tolerance in the doughboy scallop, Mimachlamys asperrima. Journal of Shellfish Research, 17: 89-95.
Park, J.E. (1994) The optimum culture environment of four species of phyto-food organisms. Master thesis, National Fisheries University of Busan, 34pp. [in Korean]
Park, K.Y., Kim, S.K., Seo, H.C. and Ma, C.W. (2005) Spawning and larval development of the jicon scallop, Chlamys farreri. Journal of Aquaculture, 18: 1-6. [in Korean]
Park, S.W. and Lee, S.H. (1968) Analysis of the shell height frequencies on the flesh water cockle, Corbicula elatior, by means of probability graph. Bulletin of Korean Fisheries Society, 1: 31-43. [in Korean]
Pyen, C.K., Rho, Y.G. and Yoo, Y.K. (1976) Studies on spat collection and rearing of the larvae, Anadara broughtonii (Schrenck) in tank. Bulletin of the National Fisheries Research Development, 15: 7-18. [in Korean]
Webb, K.L. and Chu, F.L.E. (1983) Phytoplankton as a food source for bivalve larvae. Biochemical and Physiological Approches to Shellfish Nutrition. 272-291.
Yoo, S.K. (1969) Food and growth of the larvae of certain important bivalves. Bulletin of National Fisheries University of Busan, 9: 65-87. [in Korean]
Yoon, H.S., Kim, J. and Choi, S.D. (2005) Biological studies on Aquaculture for resources enhancement of Protothaca jedoensis Ⅰ. Egg development and larva reared. Journal of Aquaculture, 18: 260-266. [in Korean]
Zar, J.H. (1984) Biostatistical analysis. 2nd. Prentice-Hall, 718pp.
