Elaphoidella grandidieri (Harpacticoida: Copepoda): Demographic characteristics and possible use as live prey in aquaculture
Por:
Nandini, S, Ortiz, ARN, Sarma, SSS
Publicada:
1 jul 2011
Resumen:
In freshwater ecosystems, rotifers and cladocerans are ideal prey for fish larvae whereas copepods, due to their purported low growth rate and predatory tendency, are not. We recently isolated the parthenogenetic Elaphoidella grandidieri (Gueme et Richard, 1893) a benthic freshwater harpacticoid, from a fish farm in the State of Morelos, central Mexico and tested its potential as a live prey organism for larval vertebrates. Population growth and life table demography experiments were conducted, in 100 ml recipients with 50 ml of test medium on a diet of Scenedesmus acutus at a density of 1.0 X 10(6) cell ml(-1); the former on live algae alone while the latter on live algae as well as detritus. We also conducted experiments to document the prey preference for this copepod by the larval Ameca splendens (Pisces: Goodeidae) and Ambystoma mexicanum (Amphibia: Ambystomatidae), fed the rotifer Plationus patulus, the ostracod Heterocypris incongruens, and the cladocerans Moina macrocopa and Da
Filiaciones:
Nandini, S:
Univ Nacl Autonoma Mexico, Div Invest & Posgrado, Lab Zool Acuat, Tlalnepantla 54090, Edo De Mexico, Mexico
Ortiz, ARN:
Univ Nacl Autonoma Mexico, Div Invest & Posgrado, Lab Zool Acuat, Tlalnepantla 54090, Edo De Mexico, Mexico
Sarma, SSS:
Univ Nacl Autonoma Mexico, Div Invest & Posgrado, Lab Zool Acuat, Tlalnepantla 54090, Edo De Mexico, Mexico
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