Some aspects of the culture, population dynamics and reproductive rates of the freshwater rotifer, Brachionus calyciflorus fed selected diets

  • FO Arimoro Applied Hydrobiology and Fisheries Research Unit, Department of Zoology, University of Jos, Jos, Nigeria
  • PC Ofojekwu Applied Hydrobiology and Fisheries Research Unit, Department of Zoology, University of Jos, Jos, Nigeria
Keywords: Freshwater rotifer, Brachionus calyciflorus, culture, population dynamics

Abstract

The effectiveness of using freshwater Chlorella, mixed algae, lettuce leaves and supplemental baker's yeast for the culture of freshwater rotifer, Brachionus calyciflorus were evaluated every two days for 18 days culture period. Rotifers raised without yeast attained maximum density of 100 - 152 inds.ml-1 after 6 days of culture before declining. Addition of baker's yeast improved and sustained rotifer populations. Rotifers raised on freshwater Chlorella and yeast attained a peak of 562 inds.ml-1 after 10 days of culture. The reproductive rates of rotifers ranged between 0.27 - 0.52. The relationship between reproductive rates and doubling time of rotifers are discussed.

Key Words: Freshwater rotifer, Brachionus calyciflorus, culture, population dynamics.

Journal of Aquatic Sciences Vol.19(2) 2004: 95-98

Author Biography

FO Arimoro, Applied Hydrobiology and Fisheries Research Unit, Department of Zoology, University of Jos, Jos, Nigeria
Present Address: Department of Zoology, Delta State University, Abraka, Nigeria.
Published
2004-10-18
Section
Articles

Journal Identifiers


eISSN: 0189-8779