Fisheries and Aquatic Sciences

한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
권호 표지
DOI QR코드

DOI QR Code

Effects of Temperature, Salinity, and Diet on the Growth and Survival of the Freshwater Rotifer Brachionus angularis

  • Kim, Byeong-Ho (School of Marine Life Science, Kunsan National University) ;
  • Kim, Hyung-Seop (Kunsan Regional Maritime Affairs and Fisheries Office) ;
  • Jo, Soo-Gun (School of Marine Life Science, Kunsan National University)
  • 발행 : 2006.12.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

We explored the possibilities of using the freshwater rotifer Brachionus angularis as a live food for small fishes cultured in fresh- or brackish waters. Brachionus angularis were collected from a reservoir for isolation and laboratory culture. Length and width of the lorica were $102.3{\mu}m$ and $76.6{\mu}m$, respectively, and those of amictic eggs were $64.4{\mu}m\;and\;47.9{\mu}m$, respectively. When their growth rates were examined at six different temperatures, i.e., 15, 20, 25, 30, 35, and $40^{\circ}C$, the highest daily growth rate of 0.801 was observed at $35^{\circ}C$, and growth was lower with decreasing temperature. Adaptation to salinity change was evaluated with two different modes of salinity increase: step-wise elevation lasting for short durations of 5 to 30 min or a long duration of 24 h. With the short duration modes, no individuals survived salinity higher than 10 psu, and the number of live individuals did not increase throughout the experiment. However, in the 24-h elevation, the number of individuals increased when salinity was elevated by 1 to 2 psu per day for the first 2 or 3 days, while no increase in number occurred at salinity increments higher than 3 psu per day. In addition, to assess the effect of different diets, four single-component diets (Chlorella vulgaris, Nannochloris sp., baker's yeast, or dry yeast) and three combination diets (C. vulgaris + Nannochloris sp. + baker's yeast + dry yeast; C. vulgaris 70% + baker's yeast 30%; C. vulgaris 30% + baker's yeast 70%) were used. The specific growth rates of B. angularis fed combination diets were higher than those of rotifers fed any single-component diet, with the highest rate of 0.648 in B. angularis fed a mixture of C. vulgaris, Nannochloris sp., baker's yeast, and dry yeast, and the lowest rate of 0.200 in those fed dry yeast only. Our results indicate that the freshwater rotifer B. angularis can be used for seedling production of both freshwater and brackish-water fishes that require small (less than about $120{\mu}m$) live food during their early stages.

키워드

참고문헌

  1. Gama-Flores, J.L., S.S.S. Sarma and S. Nandini. 2004. Acute and chronic toxicity of the pesticide methyl parathion to the rotifer Brachionus angularis (Rotifera) at different algal (Chlorella vulgaris) food densities. Aqua. Ecol., 38, 27-36 https://doi.org/10.1023/B:AECO.0000020986.92471.32
  2. Guillard, R.R.L. and J.H. Ryther. 1962. Studies of marine planktonic diatoms. I. Cyclotella nana Hustedt and Detonula confervacea (Cleve) Gran. Can. J. Microbiol., 8, 229-239 https://doi.org/10.1139/m62-029
  3. Hirayama, K. and S. Ogawa. 1972. Fundamental studies on physiology of rotifer for its mass culture - I. Filter feeding ofrotifer. Bull. Jap. Soc. Sci. Fish., 38, 1207-1214 https://doi.org/10.2331/suisan.38.1207
  4. Hirayama, K. and K. Watanabe. 1973. Fundamental studies on the physiology of rotifer for its mass culture. IV. Nutritional effects of yeast on population growth of rotifer. Bull. Jap. Soc. Sci. Fish., 39, 1129-1133 https://doi.org/10.2331/suisan.39.1129
  5. Hirayama, K., K. Takagi and H. Kimura. 1979. Nutritional effect of eight species of marine phytoplankton on population growth of the rotifer Brachionus plicatilis. Bull. Jap. Soc. Sci. Fish., 45,11-16 https://doi.org/10.2331/suisan.45.11
  6. Hur, S.B. and H.G. Park. 1996. Size and resting egg formation of Korean rotifer, Brachionus plicatilis and B. calyciflorus. J. Aquacult., 9, 187-194
  7. Hwang, H.K. and C.K. Pyen. 1995. The effects of water temperature and salinity on the propagation of rotifers, Brachionus plicatilis. J. Aquacult., 8, 59-67
  8. Kim, H.J., J.D. Kim, YG. Choi and YB. Woo. 1997. Growth and size variation of Brachionus plicatilis reared at different conditions. J. Aquacult., 10, 219-225
  9. Lee, K.W., H.G. Park and K.Y Park. 2000. Different combinations of condensed Chlorella and baker's yeast for mass culture of the freshwater rotifer, Brachionus calyciflorus Pallas. J. Aquacult., 13, 147-152
  10. Lubzens, E. 1987. Raising rotifers for use in aquaculture. Hydrobiologia, 147, 245-255 https://doi.org/10.1007/BF00025750
  11. Lubzens, E., A. Tandler and G. Minkoff. 1989. Rotifer as food in aquaculture. Hydrobiologia, 186/187, 387-400 https://doi.org/10.1007/BF00048937
  12. Rico-Martinez, R. and S.I. Dodson. 1992. Culture of the rotifer, Brachionus calyciflorus Pallas. Aquaculture, 105, 191-199 https://doi.org/10.1016/0044-8486(92)90130-D
  13. Schluter, M. and J. Groeneweg. 1981. Mass production of freshwater rotifers on liquid wastes. I. The influence of some environmental factors on population growth of Brachionus rubens Ehrenberg 1838. Aquaculture, 25, 17-24 https://doi.org/10.1016/0044-8486(81)90095-8
  14. Sugumar, V. and N. Munuswamy. 2006. Induction of population growth, mictic female production and body size by treatment of a synthetic GnRH analogue in the freshwater rotifer, Brachionus calyciflorus Pallas. Aquaculture, 258, 529-534 https://doi.org/10.1016/j.aquaculture.2006.03.034
  15. Snell, T.W., J. Bieberich and R. Fuerst. 1983. The effects of green and blue-green algal diets on the reproductive rate of the rotifer Brachionus plicatilis. Aquaculture, 31, 21-30 https://doi.org/10.1016/0044-8486(83)90254-5
  16. Song, C.B., YH. Kim, J. Lee and S. Rho. 1999. Size variation and cyclomorphosis of the rotifer, Brachionus rotundiformis, isolated from Cheju Island, Korea. J. Aquacult., 12, 267-274
  17. Walz, N. 1987a. Comparative population dynamics of Brachionus angularis and Keratela cochlearis. Hydrobiologia, 147, 209-213 https://doi.org/10.1007/BF00025744
  18. Walz, N. 1987b. Stoffumsatz und kinetik von regulations prozessen bei Zooplankton-Populationen, Alaysen und modelle in rotatorien-chemostaten und urn plankton eines Sees. Habilitationsschrift Faculty of Biology, University of Munich, 1-225
  19. Walz, N. and T. Gschloessl. 1988. Functional response of ingestion and filtration rate of the rotifer Brachionus angularis to the food concentration. Verh. Int. Ver. Limnol., 23, 1993-2000