Mass mortality of fingerlings of Labeo rohita (Hamilton) in a nursery pond


133 / 98

Authors

  • G Sugumar Fisheries College and Research Institute ,Tamil Nadu Veterinary and Animal Sciences University, Thoothukkudi-628 008,India
  • Indrani Karunasagar College of Fisheries, University of Agricultural Sciences, Mangalore- 575 002, India
  • Iddya Karunasagar Fisheries College and Research Institute ,Tamil Nadu Veterinary and Animal Sciences University, Thoothukkudi-628 008,India.

Abstract

The cause of large scale mortality in fingerlings of Labeo rohita (Hamilton)
stocked in a nursery pond was investigated. Examination of gills of healthy
looking fingerlings revealed heavy infestations of Dactylogyrus. Bacteriological
studies showed presence of Aeromonas hydrophila, A.sobria, Vibrio Spp.
and enterobacteriaceae in the internal organs of infected fingerlings. Dip treatment
of fingerlings in formalin solution (50 ppm) controlled the mortality. Mortality
ceased after one week of treatment . Examination of healthy fish at this
stage showed absence of Dactylogyrus on the gills and bacteria in the internal
organs. Presence of different types of bacteria in Dactylogyrus infected fish suggests
that bacteria might have gained entry into the internal organs through
damaged gills

Downloads

Download data is not yet available.

Author Biographies

  • G Sugumar, Fisheries College and Research Institute ,Tamil Nadu Veterinary and Animal Sciences University, Thoothukkudi-628 008,India
    Fisheries College and Research Institute ,Tamil Nadu Veterinary and Animal
    Sciences University, Thoothukkudi-628 008,India
  • Indrani Karunasagar, College of Fisheries, University of Agricultural Sciences, Mangalore- 575 002, India
    College of Fisheries, University of Agricultural Sciences, Mangalore- 575 002,
    India
  • Iddya Karunasagar, Fisheries College and Research Institute ,Tamil Nadu Veterinary and Animal Sciences University, Thoothukkudi-628 008,India.
    Fisheries College and Research Institute ,Tamil Nadu Veterinary and Animal
    Sciences University, Thoothukkudi-628 008,India.

Downloads

Issue

Vol. 49 No. 3 (2002)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Sugumar, G., Karunasagar, I., & Karunasagar, I. (2011). Mass mortality of fingerlings of Labeo rohita (Hamilton) in a nursery pond. Indian Journal of Fisheries, 49(3), 305-309. https://epubs.icar.org.in/index.php/IJF/article/view/8311