Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
권호 표지

Feeding of Juvenile Purple Washington Clam, Saxidomus purpuratus (Sowerby): Effects of Algal Concentration and Temperature

  • Published : 2002.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

To find the optimal rearing conditions for Saxidomus purpuratus juvenile, filtering activity was estimated as functions of algal concentration and temperature by measuring the rates of clearance (CR) and ingestion (IR), when S. purpuratus was feeding. The clams were fed on unialgal diet of Isochrysis galbana at 6 algal concentrations (4.6$\times$$10^4$~2.6$\times$$10^6$ cells/ml) and at 6 temperatures (5, 10, 15, 20, 25, and 30^{\circ}C ). Algal concentration significantly affected the CR and the IR at all temperatures. At lower algal concentrations, CR increased, but decreased beyond a particular concentration. The maximum CR ($CR_{max}$) at 5, 10, 15, 20, 25, and 30^{\circ}C were 0.30, 1.73, 5.95, 15.17, 21.12, and 0.33 $l/g/h$, respectively. Below the level of 5.6$\times$10$^{5}$ cells/ml, IR increased as algal concentration increased, but was saturated at higher concentrations. To maintain high growth rate of S. purpuratus, I. galbana should be supplied with more than 5.6$\times$10$^{5}$ cells/ml. The maximum IR ($IR_{max}$) at 5, 10, 15, 20, 25 and30^{\circ}C were $2.2$\times$10^8, $1.5\times$10^9, 3.4$\times$10^9, 4.9$\times$10^9, 5.3$\times$10^9, and 1.0$\times$10^8$ cells/g/h, respectively. As for temperature, both $CR_max$ and $IR_max$ increased remarkably with raising temperature from 5 to 25^{\circ}C, but rapidly decreased at 30^{\circ}C. Between 15 and 25^{\circ}C $CR_{max} and IR_{max}$ were higher and most stable, At this temperature range, the $Q_{10}/s for CR_{max} and IR_{max}$ were 3.5 and 1.6, respectively. Therefore the optimal thermal range for the juvenile is 15~$25^{\circ}C$. The annual variation in IR$_{max}$ predicted by natural seawater temperature shows that inactive period (with lower $IR_max$) lasts for 5 months (from December to April). To ensure higher growth of juvenile during this inactive period at hatcheries, rearing temperature should be elevated to $15^{\circ}C$.>.

Keywords

References

  1. Feeding Zooplankton Methology Manual B$\{aa}$mstedt, U.;D. J. Cifford;X. Irigoien;A. Atkinson;M. Roman;Harris, R. P.(ed.);P. H. Wiebe(ed.);J. Lenz(ed.);H. R. Skjoldal(ed.);M. Huntley(ed.)
  2. Physiology I. Marine Mussels: their ecology and physiology Bayne, B. L.;R. J. Thompson;J. Widdows;Bayne, B. L.(ed.)
  3. Aquaculture v.134 Allometric relationships and effects to temperature on clearance and oxygen consumption rates of Crassostrea gigas(Thunberg) Bougrier, S.;P. Geairon;J. M. Deslous-Paoli;C. Bacher;G. Jonquieres
  4. Commericial molluscs from the freshwater and continental shelf in Korea Choe, B. R.;M. S. Park;L. G. Jeon;S. R. Park;H. T. Kim
  5. Saxidomus purpuratus (Sowerby) v.5 Ultrastructure of germ cell development and reproductive cycle of the purplish Washington clam. The Yellow Sea Chung, E. Y.;Y. M. Kim;S. G. Lee
  6. Mar. Ecol. Prog. Ser. v.141 Growth, filtration and respiration in the mussel Mytilus edulis: no evidence for physiological regulation of the filter-pump to nutritional needs Clausen, I.;H. U. Riisg$\{aa}$rd
  7. Mar. Biol. v.2 The estimation of filtering rate from the clearance of suspensions Coughlan, J.
  8. Can. J. Microbiol. v.8 Studies of marine planktonic diatoms. I. Cyclotella nana Hustedt and Detonula confervacea (Cleve) Grun. Guillard, R. R. L.;J. H. Ryther
  9. Aquaculture v.143 Temperature and nutrition as factors in conditioning broodstock of the commercial scallop Pecten fumatus Reeve Heasman, M. P.;W. A. O'Conner;A. W. Frazer
  10. Publ. Mar. Lab. Pusan Fish. Coll. v.2 Studies on the gametogenesis and breeding season of Saxidomus purpuratus (Sowerby) Kim, A. Y.
  11. Bull. Korean Fish. Soc. v.4 Ecological studies on the propagation of Saxidomus purpuratus (Sowerby) Kim. A. Y.
  12. Bull. Nat'l. Fish. Res. Dev. Inst. Korea. v.59 Studies on the ecological aspect and gametogenesis of Saxidomus purpuratus (Sowerby) in Yellow Sea area Kim, S. K.;K. Y. Park;G. N. Jang;D. J. Kim;H. C. Seo
  13. Korea. J. Fish. Sci. Tech. v.4 Catch yield fluctuation and relative growth of the purplish Washington clam Saxidomus purpuratus (Sowerby) in the South Sea Kim. Y. H.;D. S. Chang;B. Y. Cha
  14. Mar. Biol. v.93 Influence of temperature and food availability on the ecological energetics of the giant scallop Placopecten magellanicus. III. Physiological ecology, the gametogenic cycle and scope for growth. MacDonald, B. A.;R. J. Thompson
  15. J. Shellfish Res. v.19 Combined effects of temperature and algal concentration on survival, growth and feeding physiology of Pinctata maxima (Jameson) spat Mills, D.
  16. J. Exp. Mar. Biol. Ecol. v.147 Interactive effects of diet and temperature on the scope for growth of the scallop Argopecten purpuratus during reproductive conditioning Navarro, J. M.;G. E. Leiva;G. Martinez;C. Anguilera
  17. J. Shellfish Res. v.7 Feeding rates in hard clam (Mercenaria mercenaria) veliger larvae as a function of algal (Isochrysis galbana) concentration Riisg$\{aa}$rd, H. L.
  18. J. Shellfish Res. v.19 The new lessepsian entry Brachidontes pharaonis (Fischer P., 1870) (Bivalvia, Mytilidae) in the western Mediterranean: A physiological analysis under varying natural conditions Sar$\`{a}$, G.;C. Romano;M. Caruso;A. Mazzola
  19. J. Shellfish Res. v.18 Optimum temperature for growth in the catarina scallop (Argopecten ventricosus-circularis, Sowerby II, 1842) Sicard, M. T.;A. N. Maeda-Martinez;P. Ormart;T. Reynoso-Granados;L. Carvalho
  20. Limnol. Oceanogr. v.38 Potamocorbula amurensis: Comparison of clearance rates and assimilaton efficiencies for phytoplankton and bacterioplankton Werner, I.;J. T. Hollibaugh
  21. Biostatistical analysis, (2nd ed.) Zar, J. H.