ISSN : 1225-3480
We examined physiological responses related to the survival, oxygen consumption and filtration rate of the blood cockle, Tegillaarca granosa as a result of salinity changes. The 44-day LS50 (median lethal salinity) at 10ºC for adult and juvenile was 15.8 (confidence limits 13.5-18.2 psu) and 16.2 (confidence limits 14.1-18.4 psu) psu respectively, whereas the 11-day LS50 at 25ºC for adult and juvenile was 16.8 psu (confidence limits 12.9-21.2 psu) and 22.4 (confidence limits 20.5-24.7 psu) psu respictively. In conditions of decreasing salinity, Oxygen consumption and filtration rates decreased or varied irregularly as salinity decreased. The results of this study could prove important in investigating causes of mass mortality and managing shellfish aquaculture farms.
Almada-villela, P.C. (1984) The effects of reduced salinity on the growth of small Mytilus edulis. J. Mar. Biol. Ass. U.K., 64: 171-182.
Bohle, B. (1972) Effects of adaptation to reduced salinity on filtration activity and growth of mussels (Mytilus edulis). J. Exp. Mar. Biol. Ecol., 10: 41-49.
Dame, R. F. (1996) Ecology of Marine Bivalves: An Ecosystem Approach. CRC Perss, Boca Raton, FL. 254 pp.
Davenport, J. and Wong, T.M. (1986) Responses of the blood cockle Anadara granosa L.) (Bivalvia: Arcidae) to salinity, hypoxia and aerial exposure. Aquaculture, 56: 151-162.
Feng, S. Y. and Winkle, W. Van. (1975) The effect of temperature and salinity on the heart beat of Crassostrea virginica. Comp. Biochem. Physiol., 50:473-476.
Finney D.J. (1971) Probit Analysis, 3rd ed. Cambridge University Press. London, pp. 333.
Hand S.C. and Stickle, W.B. (1977) Effects of tidal fluctuations of salinity on pericardial fluid composition of the American Crassostrea virginica. Mar. Biol., 42: 259-271.
Loosanoff, V. L. (1950) Rate of water pumping and shell movements of oyster in relation to temperature (Abstract). Anat. Rec. 108, pp. 620.
Mohlenberg, F. and Kiorboe, T. (1981) Growth and energetics in Spisula subtruncata (Da Costa) and the effect of suspended bottom material. Marine Biol. Lab., Strandpromenaden, DK-3000 Helsingor, Denmark. Ophelia, 20: 79-90.
Nakamura, Y., Yoshimasa, A. and Takashi, O. (1990) On measurements of the oxygen consumption and filtration rate of juvenile surf clams. Japan Aquacul. Soc., 38: 269-274.
Navarro J.M. and Gonzalez, C.M. (1998) Physiological responses of the Chilean scallop Argopecten purpuratus to decreasing salinities. Aquaculture, 167: 315-327.
Navarro, J.M. and Winter, J.E. (1982) Ingestion rate, assimilation efficiency and energy balance in Mytilus chilensis in relation to body size and different algal concentration. Mar. Biol., 67: 255-266.
Otto, R.G. (1973) Temperature tolerance of the mosquito fish, Gambusia affinis (Baird and Girard). J. Fish Biol., 5: 575-585.
Pierce. S.K and Greenberg, M.J. (1972) The nature of cellular volume regulation in marine bivalves. J. Exp. Biol., 57: 681-692.
Shumway, S. (1977) The effects of fluxtuating salinity on the tissue water content of eight species of bivalve mollusks. J. Comp. Physiol., 116: 269-285.
Shumway, S. E. and Koehn, R.K. (1982) Oxygen consumption in the American oyster Crassostrea virginica. Mar. Ecol. Prog. Ser., 9: 59-68.
Sastry A.N. and Vargo, S.L. (1977) Variations in the physiological response of crustacean larvae to temperature. In: Vernberg, F.J., Calabrese, A., Thurberg, F.P., Vernberg W.B.(Eds.), Physiological response of marine biota to pollutants. Academic Press, New York., pp. 410-424.
Shin, Y.K., Kim, B.H. Oh, B.S. Jung, C.G., Sohn, S.G. and Lee. J.S. (2006) Physiological responses of the ark shell Scapharca broughtonii (Bivalvia: Arcidae) to decrease in salinity. J. Fish. Sci. Technol., 9(4):153-159.
Shin, Y.K. and Yang, M.H. (2005) Effects of temperature and salinity on the survival and metabolism of Tresus keenae (Mollusca: Bivalvia). J. Fish. Sci. Technol., 8(3): 161-166.
Shin, Y.K. and Wi, C.H. (2004) Effects of temperature and salinity on survival and metabolism of the hard shelled mussel Mytilus coruscus, Bivalve: Mytilidae. J. of Aquaculture, 17(2): 103-108.
Tettelbach, S. T. and Rhodes, E.W. (1981) Combined effects of temperature and salinity on embryos and larvae of the northern bay scallop Argopecten irradians. Mar. Biol., 63: 249-256.
Tucker, L.E. (1970) Effects of external salinity on Scutus breviculus (Gastropoda, Prosobranchia)- Ⅰ. Body weight and blood composition. Comp. Biochem. Physiol., 36: 301-319.
Van Winkle, W. (1968) The effects of season, temperature and salinity on the oxygen consumption of bivalve tissue. Comp. Biochem. Physiol., 26:69-80.
Widdows, J. (1985) The effects of fluctuating and abrupt changes in salinity on the performance of Mytilus edulis. In: Gray, J. S., Christiansen, M.E. (Eds.), Marine Biology of Polar Regions and Effects of stress on marine organism. Wiley-Interscience, pp. 555-566.
Zwaan A. de and Zandee D. I. (1972) The utilization of glycogen and accumulation of some intermediates during anaerobiosis in Mytilus edulis. Comp. Biochem. Physiol., 43B: 47-54.
