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Assessment of the Growth Potential of the Rotifer Brachionus Plicatilis by Evaluating Biological and Physiological Characteristics

By Koiso, Masahiko

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Book Id: WPLBN0000682040
Format Type: PDF eBook
File Size: 48.33 KB.
Reproduction Date: 2005
Full Text

Title: Assessment of the Growth Potential of the Rotifer Brachionus Plicatilis by Evaluating Biological and Physiological Characteristics  
Author: Koiso, Masahiko
Volume:
Language: English
Subject: Science., Ecology & environment, National Oceanic and Atmospheric Administration (U.S.)
Collection: National Oceanographic Data Center
Subcollection:
Historic
Publication Date:
Publisher: Government Reference Publication

Excerpt
Introduction: Marine rotifers are widely used as a live food in the early stages of marine fish larval rearing. Mass rotifer production incurs problems, however, such as a sudden decrease of rotifer density and decline of population growth. If these problems can be anticipated, countermeasures can be taken to prevent or curtail a total collapse of the culture. Swimming speed (Snell et al. 1987; Korstad et al. 1995), egg ratio (Korstad et al. 1995), and tolerance to chemical toxicity (Juchelka and Snell 1994; Janssen et al. 1994) have been good indices to monitor the population growth of rotifers. These indices require intensive effort, however, and accordingly they are not practical at the rotifer production site. Therefore, it is important to determine simple yet accurate indices for monitoring the changing conditions when rotifers are under mass culture.

 

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