Fecundity and Longevity of Ceriodaphnia Dubia/affinis in Relation to Diet at Two Different Temperatures

Cowgill, U. M.; Keating, Kathleen Irwin; Takahashi, I. T.

doi:10.2307/1547912

Cited by 48 publications

(21 citation statements)

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“…Margalef (1983) reported that, under natural conditions, phosphorus content per cell in microalgae is between 0.3 and 2.0 pg cell -1 ; the lowest value is similar to that determined in A. convolutus, whereas the other two algae had values above the maximum. Cowgill et al (1985) and Cooney et al (1992a) fed A. convolutus and S. capricornutum microalgae to C. dubia and obtained low fecundity (<5 neonates), but this was probably a consequence of using cell densities that were below nutritional requirements, rather than inherent to the nutritional content of the algae. This condition was not an issue in our treatments because the lowest algal densities were well above the highest levels reported by these authors.…”

Section: Discussionmentioning

confidence: 99%

Impact of algae and their concentrations on the reproduction and longevity of cladocerans

Muñoz-Mejía

2007

Ann. Limnol. - Int. J. Lim.

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Section: Discussionmentioning

confidence: 99%

Impact of algae and their concentrations on the reproduction and longevity of cladocerans

Muñoz-Mejía

2007

Ann. Limnol. - Int. J. Lim.

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“…Il est à noter que la longévité et la fécondité de celle-ci sont supérieures à 25 °C alors que l'inverse est observé chez des populations nord-américaines plus prolifiques et plus longévives car élevées au laboratoire avec des cultures d'algues (Cowgill et al 1985). (10) La population de C. dubia du réservoir Lalla Takerkoust est nettement mieux adaptée à la température de 25 °C que D. brachyurum et les deux espèces du genre Daphnia ainsi que l'a observé Lynch (1978).…”

Section: Discussion Et Conclusionunclassified

“…in Threkeld 1987), les connaissances sur les caractéristiques biologiques des Cladocères planctoniques en conditions naturelles restent limitées à quelques publications (Gras & Saint-Jean 1976, 1978, Cowgill et al 1985, Hanazato & Yasuno 1985.…”

Section: Introductionunclassified

Influence de la température sur le développement et la fécondité de quatre espèces de Cladocères planctoniques (Crustacés) en présence de ressources naturelles

Tifnouti

Pourriot

Rougier

1993

Ann. Limnol. - Int. J. Lim.

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Parmi les caractères étudiés figurent : le taux de croissance, la taille à la maturité, la taille maximale, la durée de la phase juvénile, la durée de vie, la fécondité, le nombre de descendants par femelle, le nombre de portées et le nombre d'oeufs par portée.Les caractères démographiques des quatre populations révèlent leur adaptation à des conditions spécifiques et leur aptitude à se développer à des périodes différentes. Le faible nombre d'oeufs par portée, quelle que soit l'espèce, indique une limitation des ressources exploitables.The effect of temperature on the growth and reproduction of four species of planktonic Cladocera (Crustacea) reared with natural resources present Keywords : growth rate, reproduction, Crustacea, Cladocera, temperature.The growth and the reproduction of four species of Cladocera {Daphnia pulex, D. lumholtzi, Ceriodaphnia dubia et Diaphanosoma brachyurum) from a Moroccan reservoir (Lalla Takerkoust, near Marrakech) have been studied at five temperature (10, 15,20, 25 and 30°Q under natural environmental conditions (food and water quality). The characters studied are : the individual growth rate, the size of female at maturity, their maximal size, the duration of juvenile development, the duration of female life, their fecundity, the number of offsprings per female, the number of broods, the number of eggs per brood.The demographic characters of the four populations show their adaptation to various specific environmental conditions and their aptitude for developing in the reservoir at different times. The low number of eggs per brood in all species points out a limitation in the level of available resources.

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“…Recently, the use of Daphnia magna as a test organism in bioassays has been questioned ; despite its high sensitivity to a wide range of toxicants (Peltier & Weber, 1985), the use of other species (e .g . Ceriodaphnia dubia-affinis ; Cowgill et al, 1985a ;Cowgill & Milazzo, 1989) with shorter life cycles and similar sensitivities is being considered . In this respect, M. macrocopa has some advantages over C. dubia-affinis : the age to first reproduction is shorter, and the number of broods and the clutch size are higher .…”

Section: Discussionmentioning

confidence: 99%

Fecundity, reproduction, and growth of Moina macrocopa fed different algae

Martínez‐Jerónimo

Gutierrez-Valdivia

1991

Hydrobiologia

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Three micro algae, Ankistrodesmus convolutus, Scenedesmus incrassatulus and Chlorella vulgaris, at three concentrations, were tested as diets for Moina macrocopa. Their effect on reproduction, fecundity, growth and survival was evaluated . All three algae satisfied the nutritional requirements of M. macrocopa, despite their difference in size . The best concentration, expressed in dry weight, was 5 mg 1-' for all three . Time to first reproduction was 4 days with all diets . Average time between clutches was 33 hours, and maximum number of clutches was 12 ; the highest average number of offspring per brood was 27 . The largest broods were the fourth to sixth, depending on the diet . Ephippium hatching depends on temperature, taking only 24 hours at 30 ° C and 48 hours at 27 'C . This species could be an important test organism in aquatic bioassays, and a live food in aquaculture .

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Fecundity and Longevity of Ceriodaphnia Dubia/affinis in Relation to Diet at Two Different Temperatures

Cited by 48 publications

References 1 publication

Impact of algae and their concentrations on the reproduction and longevity of cladocerans

Impact of algae and their concentrations on the reproduction and longevity of cladocerans

Influence de la température sur le développement et la fécondité de quatre espèces de Cladocères planctoniques (Crustacés) en présence de ressources naturelles

Fecundity, reproduction, and growth of Moina macrocopa fed different algae

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