Population Growth of Zooplankton (Rotifers and Cladocerans) Fed <i>Chlorella vulgaris</i> and <i>Scenedesmus acutus</i> in Different Proportions

Flores-Burgos, J.; Sarma, S. S. S.

doi:10.1002/aheh.200300488

Cited by 22 publications

(20 citation statements)

References 29 publications

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“…1). Similar results were obtained by Flores-Burgos et al (2003) for B. calyciflorus. In general, the energy channeled into reproduction can be utilized to produce a large number of small-sized eggs or a small number of large-sized eggs (Stearns 1976).…”

Section: Discussionsupporting

confidence: 78%

Effect of two microalgae concentrations on body size and egg size of the rotifer Brachionus calyciflorus

Kennari

Ahmadifard

Kapourchali³

et al. 2008

Biologia

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Abstract:The rotifer, Brachionus calyciflorus, was grown with two algae species (Chlorella sp. and Scenedesmus obliquus) at different concentrations (0.1, 1 and 10 × 10 6 cells ml −1 ). The body size (lorica biovolume) of individual rotifer and their egg size were measured when the populations were roughly in the exponential phase of population growth. The body size of the rotifers differed significantly (P < 0.05) among the two algae species used, however this effect was not observed for egg size. The body size of rotifers fed on higher densities of Chlorella sp. (10 × 10 6 cells ml −1 ) was significantly larger than for those fed on lower and medium densities (0.1 and 1 × 10 6 cells ml −1 ). Body size and egg size of rotifers fed with different amounts of Scenedesmus did not differ significantly. The egg size was significantly larger at higher food level of Chlorella. A significantly positive correlation was observed between the adult rotifer body size and their egg size.

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Section: Discussionsupporting

confidence: 78%

Effect of two microalgae concentrations on body size and egg size of the rotifer Brachionus calyciflorus

Kennari

Ahmadifard

Kapourchali³

et al. 2008

Biologia

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“…There is some ambiguity with reference to the use of Chlorella or Scenedesmus as an adequate food type. This is mainly because certain cladocerans thrive better on Chlorella than on Scenedesmus, but the inverse situation has also been reported (Flores-Burgos et al, 2003). In our present study, we not only used both these algae but also offered them at different concentrations.…”

Section: Resultsmentioning

confidence: 73%

Effect of Type and Concentration of Algal Food (Chlorella Vulgaris and Scenedesmus Acutus) on the Population Dynamics of Daphnia Ambigua Scourfield, 1947 (Cladocera, Daphniidae)

Sarma

Tavera-Briseño

Nandini

2009

Crustac

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We quantified changes in the population abundance of Daphnia ambigua, separately cultured on Chlorella vulgaris or Scenedesmus acutus, respectively, at three different algal concentrations (dry weight, 1.45, 4.35, and 13.05 μg ml −1 ). These population growth experiments were carried out for 30 days under laboratory conditions, with the medium and the algal food (at the initial density) renewed daily. Our study showed that a population of D. ambigua grew well on either Chlorella vulgaris or Scenedesmus acutus, when offered as an exclusive diet. Regardless of the algal type, increased algal density generally resulted in an increased population abundance of D. ambigua. The peak population abundance of D. ambigua was approximately 6 ind.ml −1 on Chlorella, at a concentration of 4.35 μg ml −1 . The rate of population increase of D. ambigua varied from 0.123 ± 0.012 to 0.224 ± 0.006 per day, depending on the algal species and its concentration. Daily population growth rates of D. ambigua when plotted as a function of population density, yielded an inverse relationship. These results are interpreted in terms of population growth characteristics of various species of Daphnia from the literature. RESUMENSe cuantificaron los cambios en la densidad poblacional de Daphnia ambigua, cultivadas por separado con las algas Chlorella vulgaris y Scenedesmus acutus en 3 diferentes concentraciones (peso seco, 1,45, 4,35 y 13,05 μg ml −1 ). Los experimentos de crecimiento poblacional se llevaron a cabo durante 30 días bajo condiciones del laboratorio, con el medio y la densidad de alga diariamente renovada. El estudio mostró que la población de D. ambigua creció de manera similar con ambos tipos de alga, cuando se ofrece como una dieta exclusiva cualquiera de ellas. En

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“…This might also be responsible for a longer lag phase in treatments containing higher proportions of M. aeruginosa. The growth response of cladocerans is known to differ depending on the algal diet such as Chlorella, Scenedesmus, or their mixture (Flores-Burgos et al 2003). The presence of M. aeruginosa had an adverse Effect of mixed diets (cyanobacteria and green algae) on the population growth 583 effect on C. dubia leading to reduced population growth.…”

Section: Discussionmentioning

confidence: 99%

Effect of mixed diets (cyanobacteria and green algae) on the population growth of the cladocerans Ceriodaphnia dubia and Moina macrocopa

Alva-Martínez

Sarma

2007

Aquat Ecol

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Microcystis aeruginosa, a cosmopolitan form, is a colonial cyanobacterium, which is also common in many freshwater bodies in Mexico. In eutrophic water bodies cyanobacteria are often the main phytoplankton that co-exist with cladocerans. We evaluated the effect of mixed diets, comprising 0, 25, 50, 75, and 100% on dry weight basis of M. aeruginosa, and the rest of one of two green algal species (Chlorella vulgaris and Scenedesmus acutus), on the population growth of the cladocerans Ceriodaphnia dubia and Moina macrocopa. Regardless of the share of M. aeruginosa in the mixed diet, C. dubia fed Chlorella had a longer initial lag phase. However, in mixed diet with S. acutus, the lag phase of C. dubia increased with increasing proportion of M. aeruginosa. When raised on 100% M. aeruginosa, the population growth of C. dubia was lowered compared with 100% S. acutus or 100% C. vulgaris. Increased proportion of M. aeruginosa in the mixed diet also resulted in decreased abundance of M. macrocopa. Irrespective of diet type, M. macrocopa had a shorter lag phase than C. dubia. Depending on the diet type, the rate of population increase (r) of C. dubia varied from 0.07 to 0.26 d À1 while that of M. macrocopa was higher (0.14-0.61 d À1 ). For both cladoceran species, the lower r values were obtained when fed Microcystis. Our study showed that the strain of M. aeruginosa was not highly toxic to cause total elimination of either C. dubia or M. macrocopa. Addition of a green algal component to the diet improved the population growth rates of both cladoceran species.

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Population Growth of Zooplankton (Rotifers and Cladocerans) Fed Chlorella vulgaris and Scenedesmus acutus in Different Proportions

Cited by 22 publications

References 29 publications

Effect of two microalgae concentrations on body size and egg size of the rotifer Brachionus calyciflorus

Effect of two microalgae concentrations on body size and egg size of the rotifer Brachionus calyciflorus

Effect of Type and Concentration of Algal Food (Chlorella Vulgaris and Scenedesmus Acutus) on the Population Dynamics of Daphnia Ambigua Scourfield, 1947 (Cladocera, Daphniidae)

Effect of mixed diets (cyanobacteria and green algae) on the population growth of the cladocerans Ceriodaphnia dubia and Moina macrocopa

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