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Parthenogenetic reproduction of Diaphanosoma celebensis (Crustacea: Cladocera): influence of salinity on feeding, survival, growth and neonate production

DRS at CSIR-National Institute of Oceanography

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Title Parthenogenetic reproduction of Diaphanosoma celebensis (Crustacea: Cladocera): influence of salinity on feeding, survival, growth and neonate production
 
Creator Achuthankutty, C.T.
Shrivastava, Y.
Mahambre, G.G.
Goswami, S.C.
Madhupratap, M.
 
Subject crustacean culture
brackishwater aquaculture
parthenogenesis
feeding
salinity effects
grazing
survival
growth
Diaphanosoma celebensis
 
Description Effect of salinity on the feeding rate and parthenogenetic reproduction of asexual females of the cladoceran Diaphanosoma celebensis Stingelin was studied. Short-term (10 h) grazing experiments were conducted using Isochrysis galbana as feed at 5, 17, 25 and 30 psu salinity. Gut pigment concentration showed a significantly higher rate of feeding at lower salinities. Survival, growth, maturity attainment and neonate production of asexual females reared in the above four test salinities indicated preference for lower salinities (5 and 17 psu). The mean size of adult females decreased from 909 to 593 mu m, mean life span from 24 to 5 d, mean neonate production from 12 to 2 and mean size of neonates from 434 to 400 mu m as the salinity increased from 5 to 30 psu. Salinity variations also affected the size and age of primiparous females. Resting egg formation and sexual reproduction did not occur at the tested salinities. The results indicate that D. celebensis is adapted to low saline, estuarine environments
 
Date 2009-01-09T07:51:51Z
2009-01-09T07:51:51Z
2000
 
Type Journal Article
 
Identifier Marine Biology, Vol.137; 19-22p.
http://drs.nio.org/drs/handle/2264/1629
 
Language en
 
Rights Copyright [2000]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Springer