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JOURNAL OF PLANKTON RESEARCH | VOLUME 16 | NUMBER 11 | PAGES 1513-1523 | 1994
© Oxford University Press

research-article

Influence of temperature on growth, reproduction and longevity of Moina salina Daday, 1888 (Cladocera, Moinidae)

T. Gordo, L.M. Lubián1 and J.P. Cañavate

CICEM ‘El Toruño’ (Junta de Andalucía) Apartado de Correos n°16, 11500 Puerto de Santa Maria, Cádiz 1Instituto de Ciencias Marinas de Andalucía (CSIC), Polígono Río San Pedro s/n 11510 Puerto Real, Cádiz, Spain

Received on January 4, 1994; accepted on July 1, 1994 This paper presents the results of a study of the effects of temperature on the growth, reproduction and longevity of the cladoceran Moina salina, a species of potential use as live food in marine aquaculture. The growth rate of M.salina increased with increasing temperature. Some parameters of development, such as length at death and the number of adult instars, were also positively related to temperature. Other parameters (duration of juvenile and adult instars) decreased with increasing temperature, while the number of juvenile instars was unaffected. An increase in temperature resulted in a reduction in age at maturity and a decrease in the number of days between broods. The number of young per female, the number of broods per female, the number of youngper day of reproductive life, and the number of young per brood, increased up to a temperature of 25°C. At 15 and 20°C. substantial degeneration of eggs and/or embryos occurred. Likewise, temperature affected the type of reproduction carried out by sexual females. Temperature and longevity were inversely correlated. It was concluded that temperature acts as a very important factor regulating the life cycle of M.salina. Temperature >30°C may correspond to sublethal levels, while a temperature of 15°C is considered to impose stress. The range 20–25°C is optimal for the development and reproduction of this species.


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