ISSN : 1225-3480
Growth patterns of the Manila clam, Ruditapes philippinarum in each tidal level were studied in the intertidal zone in Tae-an on the west coast of South Korea from April to August 2009. Environmental factors and the specimens of R. philippinarum were monthly collected at three intertidal locations: low intertidal zone, low-middle intertidal zone and middle intertidal zone. Temperature of sediment in low intertidal zone were lower than those in other intertidal locations. Concentrations of Chl-α were not significantly different between in each tidal level. Exposure hours in low intertidal zone were shorter than those in other intertidal locations. Density of each year class in low intertidal zone were higher than those in low-middle intertidal zone and middle intertidal zone. Growth factors of R. philippinarum in low intertidal zone were better than those in other intertidal locations. The growth rate of under one year class individuals of low intertidal zone were higher than those in low-middle intertidal zone and middle intertidal zone, before the main recruitment period of R. pilippinarum. Although the growth patterns of R. philippinarum may be affected by various environmental factors, we suggests that the exposure duration is the main affect in the growth patterns of R. philippinarum in intertidal zone.
Akberali, H.B. and Trueman, E.R. (1985) Effects of environmental stress on marine bivalvia molluscs. Advances in Marine Biology, 22: 102-136.
Bartol, I.K, Mann, R. and Luckenbach, M. (1999) Growth and mortality of oysters (Crassostrea virginica) on constructed intertidal reefs: effects of tidal height and substrate level. Journal of Experimental Marine Biology and Ecology, 237: 157-184.
Choi, S. (1965) Onthe morphological variation special feature of the elongated and the stunted forms in the Short necked clam, Tapes japonica. Journal of Korean Zoology, 8: 1-7.
Coutteau, P., Cure, K. and Sorgeloos, P. (1994) Effect of algal ration on feeding and growth of juvenile manila clam, Tapes philippinarum. Journal of Shellfish Research, 13: 47-55.
Darrigran, G.A., Maronas, M.E. and Colautti, D.C. (2004) Air exposure as a control mechanism for the golden mussel, Limnoperna fortunei (Bivalvia: Mytilidae). Journal of Freshwater Ecology, 19: 461-464.
Drummond, L., Mulcahy, M. and Culloty, S. (2006) The reproductive biology of the manila clam, Ruditapes philippinarum, from the North-West of Ireland. Journal of Aquaculture, 245: 326-340.
Fournier, M., Pellerin, J., Lebeuf, M., Brousseau, P., Morin, Y. and Cyr, D. (2002) Effects of exposure of Mya arenaria and Mactromeris polynyma to contaminated marine sediments on phagocytic activity of hemocytes. Journal of Aquatic Toxicology, 59: 83-92.
Holland, D.A. and Chew, K.K. (1974) Reproductive cycle of the Manila clam (Venerupis japonica), from Hood canal, Washington. Proceedings of the National Shellfisheries Association. 64: 53-58.
Ishii, R., Sekiguchi, H. Nakahara, Y. and Jinnai, Y. (2001) Larval recruitment of the manila clam, Ruditapes philippinarum in Ariake Sound, southern Japan. Journal of Fisheries Science. 67: 579-591.
Kim, C.W. and Kho, K.H. (2004) Effects of water temperature and salinity on dietary feeding of Manila clam (Ruditapes philippinarum). Korean Journal of Environmental Biology. 22: 28-34.
Kim, H.J. and Jhang, C.I. (1999) A Population Ecological Study of Short-necked Clam, Tapes philippinarum in the Adjacent Water of Jinhae. Journal of the Korean Society of Fisheries Resources. 2: 32-43.
Kim, J.B. (2004) Study on growth of Ruditapes philippinarum in Gomso tidal flat. Master of science thesis, Mokpo University, Korea. 42 pp.
Kim, Y.S. (1988) Sedimentary environments and evolution of intertidal deposits I Sajangpo coast, Cheonsu bay, west coast of Korea. Philosophy Doctor of Thesis, Seoul University, Korea. 169 pp.
Laing, I. and Child, A.R. (1996) Comparative tolerance of small juvenile paloudes (Tapes decussatus) and manila clam (Tapes philippinarum) to low temperature. Journal of Experimental Marine Biology and Ecology, 195: 267-285.
Lee, Y.C., Chang, Y.J., Lim, H,K. and Chung, G.S. (1996) Comparision of growth and survival rate in shortnecked clam, Ruditapes philippinarum from different seeding production areas. Journal of Aquaculture, 9: 223-232.
Mills, D. (2000) Combined effects of temperature and algal concentration on survival, growth and feeding physiology of Pinctata maxima (jameson) spat. Journal of Shellfish Research, 19: 159-166.
Pechenik, J.A. (2005) Biology of the invertebrates (fifth edition). Mc. Graw Hill Higher Education. pp 2-3.
Shin, H.C. and Shin, S.H. (1999) Population biology of Short-necked clam (Ruditapes philippinarum: Bivalvia) in Kwangyang Bay, Southern coast of Korea. Journal of Malacological Society of Korea, 15: 31-31.
Shpigel, M., Barber, B.J. and Mann, R. (1992) Effects of elevated temperature on growth, gametogenesis, physiology, and biochemical composition in diploid and triploid Pacific oysters, Crassostrea gigas Thunberg. Journal of Experimental Marine Biology, 161: 15-25.
Strickland, J.D.H and Parsons, T.R. (1972) A practical hand book of seawater analysis. Fisheries Research Board of Canada Bulltin, 167: 185-199.
Toba, M.Y.N and Yamakawa, H. (1993) Reproductive cycles of manila clam, Ruditapes phillippinarum collected from Funabashi waters, Tokyo Bay. Nippon Suisan Gakkaishi, 59: 15-22.
Won, M.S. and Hur, S.B. (1993) Fatness index and spat occurrence of the Shortnecked clam, Ruditapes philippinarum. Journal of Aquaculture, 6: 133-146.
Yan, X., Zhang, G. and Yang, F. (2006) Effects of diet, stocking density, and metamorphosis of manila clam, Ruditapes philippinarum larvae. Journal of Aquaculture, 253: 350-358.
Yoo, M.H. and Choi, J.K. (2005) Seasonal distribution and primary production of microphytobenthos on an intertidal mud flat of the Janghwa in Gangwa Island, Korea. Journal of Korean Society of Oceanography, 10: 8-18.
Yoo, S.G. (1998) Marinculture. ed. Gooduk, Busan, pp 290-300.
