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Effects of Salinity on Demographic Traits of the Rotifer (Brachionus rotundiformis)

  • Viayeh Reza Malekzadeh (Laboratory of Fish Genetics and Breeding, College of Ocean Science, Cheju National University) ;
  • Song Choon Bok (Laboratory of Fish Genetics and Breeding, College of Ocean Science, Cheju National University)
  • Published : 2004.03.01

Abstract

Six demographic parameters including life span (LS), maturation time (MT), net reproduction rate (Ro), mean generation length (G), innate capacity for increase $(r_m)$ and finite rate of increase $(\gamma)$ were estimated in the rotifer (Brachionus rotundiformis) cultured at three salinities of 5, 20 and 34 PSU and under a constant temperature of $28^{\circ}C$. The maximum life spans at salinities of 5, 20 and 34 PSU were 17, 12 and 13 days, respectively. The shortest maturation time (24 hr) was recorded at 5 PSU, and the rotifer at 20 PSU showed a most delayed maturation (192 hr). The maximum reproduction rate was 42 offspring per female in rotifer cultured at 5 PSU, while the longest generation length (8 days) was observed at 20 PSU. Maximum and minimum values of $r_m$ (1.56 and 0.46 individual per day) and $(\gamma)$ (6.67 and 1.70 individuals per day) were calculated at 5 and 34 PSU, respectively. Salinity also showed strong effect on correlation of the demographic traits examined. ANOVA revealed significant differences (P<0.05) between demographic parameters of the rotifer at the three salinity condition. Considering the higher values of life span, innate capacity and finite rate of increase, and shortest maturation time at 5 PSU, the rotifer we examined had a higher reproductive potential and longer life span at 5 PSU rather than at 20 or 34 PSU.

Keywords

References

  1. Bosque, T., R. Hernandez, R. Perez and R. Oltra. 2001. Effects of salinity, temperature and food level on the demographic characteristics of the sea water rotifer Synchaeta littoralis Rousselet. J. Exp. BioI. Ecol., 258, 55-64 https://doi.org/10.1016/S0022-0981(00)00345-2
  2. Cabrera, T., S.B. Hur and H.J. Kim. 1993. Life span and fecundity of three types of rotifer, Brachionus plicatilis by an individual culture. Bull. Kor. Fish. Soc., 26(6), 511-518
  3. Enesco, H., A. McTavish and R. Garberi. 1990. Spontaneous activity level and life span in rotifers: lack of support for the rate of living theory. Gerontol., 36, 256-261 https://doi.org/10.1159/000213209
  4. Fielder, D.S., G.J. Purser and S.C. Battaglene. 2000. Effect of rapid changes in temperature and salinity on availability of the rotifers Brachionus rotundiformis and Brachionus plicatilis. Aquaculture, 189, 85-99 https://doi.org/10.1016/S0044-8486(00)00369-0
  5. Fu, Y, K. Hirayama and Y. Natsukari. 1991a. Morphological differences between two types of the rotifer Brachionus plicatilis O.F. Muller. J. Exp. Mar. BioI. Ecol., 151, 29-41 https://doi.org/10.1016/0022-0981(91)90013-M
  6. Fu, Y, K. Hirayama and Y. Natsukari. 1991b. Genetic divergence between Sand L type strains of the rotifer Brachionus plicatilis O.F. Muller. J. Exp. Mar. Biol. Ecol., 151, 43-56 https://doi.org/10.1016/0022-0981(91)90014-N
  7. Fukusho, K. 1989. Biology and mass production of the rotifer, Brachionus plicatilis. Int. J. Aquacult. Fish Technol., 1, 232-240
  8. Hirayama, K. and I.M.F. Rumengan. 1993. Fecundity pattern of Sand L type rotifers Brachionus plicatilis. Hydrobiologia, 255/256, 153-157 https://doi.org/10.1007/BF00025833
  9. Hoff, F.H. and T.W. Snell. 1987. Plankton Culture Manual. Florida Aqua Farms Inc. Publications, pp. 38-75
  10. Krebs, C.J. 1978. Ecology; The experimental analysis of distribution and abundance. Harper Int. Ed., N.Y., U.S.A., pp. 678
  11. Lubzens, E. 1987. Raising rotifers for use in aquaculture. Hydrobiologia, 147, 245-255 https://doi.org/10.1007/BF00025750
  12. Miracle, R. and M. Serra. 1989. Salinity and temperature influence in rotifer life history characteristics. Hydrobiologia, 186/187, 81-102 https://doi.org/10.1007/BF00048900
  13. Oltra, R. and R. Todoli. 1997. Effects of temperature, salinity and food level on the life history traits of the marine rotifer Synchaeta cecilia valentina, n. sub sp. J. Plankton Res., 19, 693-702 https://doi.org/10.1093/plankt/19.6.693
  14. Oltra, R., R. Todoli, T. Bosque, L.M. Lubian and J.C. Navamo. 2000. Life history and fatty acid composition of the marine rotifer Synchaeta cecilia fed different algae. Mar. Ecol. Prog. Ser., 193, 125-133 https://doi.org/10.3354/meps193125
  15. Park, H.G. and S.B. Hur. 1996a. Resting egg production of six strains of Korean rotifer, Brachionus plicatilis. J. Aql.acult., 9(3), 195-203
  16. Park, H.G. and S.B. Hur. 1996b. Effect of temperature and salinity on production of resting egg in Korean rotifer, Brachionus plicatilis. J. Aquacult., 9(4), 321327
  17. Rumengan, I.F.M., V. Warouw and A. Hagiwara. 1998. Morphology and resting egg production potential of the tropical ultra minute rotifer Brachionus rotundiformis (Manado strain) fed different algae. Bull. Fac. Fish. Nagasaki Univ., 79, 31-36
  18. Sawada, M and J.C. Carlson. 1987. Association between lipid peroxidation and life modifying factors in rotifers. J. Gerontol., 42(4), 451-456 https://doi.org/10.1093/geronj/42.4.451
  19. Smith, G.V. and H.E. Enesco. 1982a. The effect of temperature and of dietary restriction on life span and reproduction in the rotifer Asplanchna brightwelli. Exp. Gerontol., 17, 255-262 https://doi.org/10.1016/0531-5565(82)90013-4
  20. Smith, C.V. and H.E. Enesco. 1982b. Maternal age and life span don't influence longevity in the rotifer Asplanchna brightwelli. Exp. Gerontol., 17, 263-266 https://doi.org/10.1016/0531-5565(82)90014-6
  21. Song, C.B., Y.H. Kim, J. Lee and S. Rho. 1999. Size variation and cyclomorphosis of the rotifer, Brachionus rotundiformis, isolated from Cheju Island, Korea. J. Aquacult., 12(4), 267-274
  22. Speakman, J., C. Selman, J.S. Mclaren and E.J. Harper. 2002. Living fast, dying when? The link between aging and energetics. J. Nutr., 132 (6 Suppl. 2), 1583s-1597s https://doi.org/10.1093/jn/132.6.1583S
  23. Treece, G.D. and A. Davis. 2000. Culture of small zooplanktons for the feeding of larval fish. South. Reg. Aquacult. Center Publ., 701, pp. 7
  24. Tukey, J.W. 1953. The problem of multiple comparisons. Department of Statistics, Princeton University. (unpublished)
  25. Yoshinaga, T., A. Hagiwara and K. Tsukamoto. 2000. Effect of periodical starvation on the life history of Brachionus plicatilis O.F. Muller (Rotifera): a possible strategy for population stability. J. Exp. Mar. Biol. Ecol., 253, 253-260 https://doi.org/10.1016/S0022-0981(00)00268-9