Effect of microalgal diets on filtration and ingestion rates of the rotifer Brachionus plicatilis


Abstract views: 275 / PDF downloads: 228

Authors

  • Jayasree Loka Central Marine Fisheries Research Institute
  • K.K. Philipose
  • S.M. Sonali

https://doi.org/10.21077/ijf.2016.63.3.58554-10

Abstract

Effect of marine microalgal diet on filtration and ingestion rates of Brachionus plicatilis was studied. Marine microalgae viz., Nannochloropsis oculata, Isochrysis galbana, Chaetoceros calcitrans and a combination of N. oculata and I. galbana (Nanno+Iso) at different cell concentrations were selected for the experiment and triplicates were maintained for each feed. Significant difference (p<0.05) was observed in the filtration and ingestion rates of B. plicatilis, between the treatments. Peak filtration rate of 12.2x10-5 cells ml-1 ind-1 min-1 was recorded in B. plicatilis fed with Nanno+Iso, followed by I. galbana. Ingestion rate was found to be significantly high (p<0.05) for those fed with C. calcitrans, followed by Nanno+Iso. Filtration rate was significantly high (p<0.05) in rotifers stocked at an initial density of 50 nos. ml-1 fed with Nanno+Iso. The results indicated that a combination of Nanno and Iso is the best suitable microalgal diet for rotifer with peak filtration (12.2x10-5cells ml-1 ind-1 min-1) and ingestion (5.4x10-3 cells ml-1 ind-1 min-1) rates during the first 60 min.

Author Biography

  • Jayasree Loka, Central Marine Fisheries Research Institute

    Senior Scientist

    Mariculture Division

Downloads

Submitted

2016-05-22

Published

2016-09-30

Issue

Section

Articles

How to Cite

Effect of microalgal diets on filtration and ingestion rates of the rotifer Brachionus plicatilis. (2016). Indian Journal of Fisheries, 63(3). https://doi.org/10.21077/ijf.2016.63.3.58554-10