Record Details

Experimental mass culture of a harpacticoid copepod Nitocra spinipes Boeck

DRS at CSIR-National Institute of Oceanography

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Title Experimental mass culture of a harpacticoid copepod Nitocra spinipes Boeck
 
Creator Gopalan, U.K.
 
Subject Aquatic Communities
Livestock Food
Benthos
Experimental Culture
Brackishwater Aquaculture
Aquaculture
ISW, India, Kerala, Cochin Backwaters
 
Description The tanaidacean Apseudes chilkensis, a detritus feeder occupies an important position in benthic food chain of the Cochin Backwaters, Kerala, India as it forms a highly preferred food organism for shrimps and fishes. Therefore, laboratory experiments have been conducted to elucidate the life-cycle, reproduction and growth of the species with the objective of evolving suitable culture methods to produce them inexpensively in sufficient numbers for use as live food in the culture of commercially important organisms. Using filtered estuarine water and substratum of soft sediment enriched with artificial detritus, it has been possible to establish and maintain laboratory populations of this species. The animal grows under a wide range of temperature (25.5-33.0~'C) and salinities (1-35 ppt) and proved to be a highly promising species for mass culture. Post-marsupial growth studies revealed that the new born measuring 1.61 mm in length on average, undergoes 8-10 moults before attaining 5.5-6.5 mm to complete one generation time i.e. 22-25 days. Culture inoculated at the rate of 610 individuals/m2 multiplied to 28000/m2 in the course 45 to 50 days. Individuals were found to grow to a maximum of 10.3 mm in length in the course of 80-90 days. Occasionally mass mortalities occurred in the culture system due to the infestation of a micro-sporidean and ectocommensalic ciliates when unfiltered water was used
 
Date 1995-01-22T09:56:51Z
2017-09-29T13:47:00Z
1995-01-22T09:56:51Z
2017-09-29T13:47:00Z
1977
 
Type Conference Article
 
Identifier Proceedings of the Symposium on Warm Water Zooplankton, Goa, India; 14-19 Oct 1976.; 1977; 558-562
http://drs.nio.org/drs/handle/2264/5416
 
Language en
 
Relation Symposium on Warm Water Zooplankton, Goa, India; 14-19 Oct 1976
NON-SCI
 
Publisher Goa: National Institute of Oceanography