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Journal of Fisheries and Aquatic Science
  Year: 2012 | Volume: 7 | Issue: 3 | Page No.: 205-214
DOI: 10.3923/jfas.2012.205.214
Effect of Water Exchange to Eliminate Vibrio sp. During the Naupliar Development of Artemia franciscana
A. Krishnika and P. Ramasamy

Abstract:
The present study was initiated to assess the occurrence, distribution and composition of Vibrio sp. and to evolve management strategy in the live feed Artemia franciscana. The occurrence of total heterotrophic bacteria was observed in the cysts of A. franciscana whereas, the Vibrio sp. appeared only at the 16th h A. franciscana nauplii. In 24th h A. franciscana nauplii, the bacterial counts remained very high and all these indicate that the live feed organism is yet another source of bacterial entry into the hatchery system and can be a serious problem in the culture system unless remedial measures are taken. In order to reduce the bacterial counts in the larval rearing tank water, water was exchanged (100%) after 18th h of A. franciscana hatching. The current study also revealed that the continuous exchange of A. franciscana rearing tank water for an interval of every two hours will be an effective method to reduce the bacterial counts and may help to avoid subsequent disease problem.
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How to cite this article:

A. Krishnika and P. Ramasamy, 2012. Effect of Water Exchange to Eliminate Vibrio sp. During the Naupliar Development of Artemia franciscana . Journal of Fisheries and Aquatic Science, 7: 205-214.

DOI: 10.3923/jfas.2012.205.214

URL: https://scialert.net/abstract/?doi=jfas.2012.205.214

 
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