Food concentration and temperature effects on the demography of Latonopsis cf. australis Sars (Cladocera: Sididae)
Por:
Chaparro-Herrera, DJ, Fernandez, R, Nandini, S, Sarma, SSS
Publicada:
1 abr 2010
Categoría:
Aquatic Science
Resumen:
Latonopsis cf. australis Sars, a rare cladoceran, originally collected from a shallow temporary water body in the State of Chihuahua (Mexico), was cultured using Scenedesmus acutus. Population growth data and selected demographic variables (average lifespan, gross and net reproductive rates, generation time, and the rate of population increase per day) of L. australis cultured under different food levels (0.015 x 10(6)-1.0 x 10(6) cells ml(-1) of S. acutus) and at 15 and 30A degrees C were measured. Population growth of the cladoceran was evaluated at six food concentrations (0.015, 0.03, 0.06, 0.12, 0.24, and 0.5 x 10(6) cells ml(-1)), while life table demography was studied at three food levels (0.25 x 10(6), 0.5 x 10(6), and 1.0 x 10(6) cells ml(-1)). Population growth data indicated that L. australis is well adapted to living under low food levels, corroborating the fact that this species was originally collected in a shallow pond with high transparency. Demographic data showed tha
Filiaciones:
Chaparro-Herrera, DJ:
Univ Nacl Autonoma Mexico, Div Invest & Posgrado, Lab Zool Acuat, Tlalnepantla 54090, Edo De Mexico, Mexico
Fernandez, R:
Univ Nacl Autonoma Mexico, Mexico City 04510, DF, Mexico
Nandini, S:
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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