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Rose, Rebecca M.; Warne, Michael St. J.; Lim, Richard P.

doi:10.1023/a:1003952013164

Cited by 24 publications

(1 citation statement)

References 19 publications

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“…Tania Cristina dos Santos Ferreira | Marlene Sofia Arcifa concentration affect a population survival (senescence or average life span), as well as fertility parameters (gross and net reproductive rates), and growth rates (Sarma et al, 2005). The increase in food level results in greater production of offspring, regardless of the taxon (Rose et al, 2000).…”

Section: R E S E a R C H A R T I C L E Competition And The Life Table...mentioning

confidence: 99%

Competition and the life table of cladocerans from a tropical shallow lake

Ferreira

Arcifa

2023

Austral Ecology

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Laboratory experiments were carried out to investigate the influence of competition for food, with different combinations of species, using life table data. In Experiment 1, the cultivated chlorophycean Desmodesmus spinosus (Chodat) Hegewald, at a low concentration (0.25 mg C L−1), was used to feed the cladocerans Daphnia gessneri Herbst and Diaphanosoma birgei Kořínek; in Experiment 2, the same alga was used in an even lower concentration (0.15 mg C L−1) to feed three species, D. gessneri, D. birgei, and Ceriodaphnia richardi Sars, in pairs. Three treatments were set up in Experiment 1 (four replicates each): a. control with the species alone; and b. in shared cultures. For Experiment 2, six treatments were set up (three replicates each): a. control with the species alone; and b. pairs of species in shared cultures. Competition for the chlorophycean occurred in Experiment 1, when D. birgei significantly reduced the average life span of D. gessneri, and D. gessneri significantly reduced the gross and net reproductive rates of D. birgei, despite the greater efficiency in all parameters, of survival and reproduction, of the second species. D. birgei was the only species that reproduced under extreme food limitation; in Experiment 2, despite gross and net reproductive rates, generation time, population growth rate and reproductive effort negatively influenced by C. richardi and D. gessneri, in addition to the average life span, also affected by D. gessneri. D. birgei was competitively superior to the other two species being able to reproduce and grow at very low food concentrations.

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Section: R E S E a R C H A R T I C L E Competition And The Life Table...mentioning

confidence: 99%

Competition and the life table of cladocerans from a tropical shallow lake

Ferreira

Arcifa

2023

Austral Ecology

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Toxicity of raw and neutralized bauxite refinery residue liquors to the freshwater cladoceran Ceriodaphnia dubia and the marine amphipod Paracalliope australis

Howe

Clark

Reichelt‐Brushett

et al. 2011

Enviro Toxic and Chemistry

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The extraction of alumina from bauxite produces a highly toxic residue, termed bauxite refinery residue (BRR) or red mud. The toxicity of this material is due to chemical and biological effects of high pH, alkalinity, electrical conductivity (EC), and Na(+) and Al(3+) concentrations. Several neutralization techniques may allow BRR to be used for environmental remediation. The present study investigated standardized 48-h acute toxicity tests with a freshwater cladoceran, Ceriodaphnia dubia, and a marine amphipod, Paracalliope australis, against raw supernatant BRR liquor (RL) versus liquors neutralized with acid (ANL), CO(2) (CNL), seawater (SNL), and a hybrid method (HNL). Based on 48-h LC50 values, the toxicity of the liquors to C. dubia increased in the following order; HNL ≤ SNL< ANL ≤ CNL < RL, with comparable responses from P. australis. The high toxicity of RL likely is due to high pH (≈ 12), alkalinity, and Al concentration. Toxicity of CNL likely is due to high EC and alkalinity. Sulfate and Na(+) concentrations are considered sources of toxicity in ANL. Seawater-neutralized liquor and HNL were considerably less toxic to both test species. These data provide evidence of the acute lethal toxicity of raw supernatant liquor from BRR and four neutralized supernatant liquors to the freshwater cladoceran C. dubia and the marine amphipod P. australis, providing valuable baselines for further ecotoxicological investigations of BRR materials in aquatic environments.

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Combined Effects of Food Level and Temperature on Life Table Demography of Moina macrocopaStraus (Cladocera)

Hagiwara

Sakakura

2005

International Review of Hydrobiology

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The combined effects of four levels of temperatures (18°C, 23°C, 28°C and 33°C) and food densities (0.5 × 10 6 , 1.0 × 10 6 , 2.0 × 10 6 and 4.0 × 10 6 cells ml -1 of Chlorella vulgaris) on the life-table demographic parameters (age-specific survivorship and fecundity, average lifespan, gross reproductive rate, net reproductive rate, generation time and intrinsic rate of population increase) of a laboratory population of the cladoceran Moina macrocopa were investigated. Both food level and temperature, independently and in interaction, significantly influenced nearly all the parameters. The average lifespan was maximized at 18°C under 1.0 × 10 6 cells ml -1 of Chlorella. The reproductive performance was a direct function of the food level, but the magnitude of food-level effect depended on temperature. Among the algal concentrations used here, 0.5 × 10 6 -2.0 × 10 6 cells ml -1 were suitable for the survival and reproduction of M. macrocopa. Regardless of the food-level effect, both the gross reproductive rate and the net reproductive rate at 23°C was higher, and the generation time generally decreased with the rise of temperature. Within the suitable food-level range, the average value of the intrinsic rate of population increase ascended with the rise of temperature from 0.72 to 2.41 day -1 .

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Cited by 24 publications

References 19 publications

Competition and the life table of cladocerans from a tropical shallow lake

Competition and the life table of cladocerans from a tropical shallow lake

Toxicity of raw and neutralized bauxite refinery residue liquors to the freshwater cladoceran Ceriodaphnia dubia and the marine amphipod Paracalliope australis

Combined Effects of Food Level and Temperature on Life Table Demography of Moina macrocopaStraus (Cladocera)

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