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- W2073758407 abstract "ABSTRACT We cultured five species of rotifers (Brachionus angularis, B. calyciflorus, B. patulus, Euchlanis dilatata, and Lepadella patella) under different algal concentrations (Chlorella vulgaris) for a period of 10 to 15 days, and we derived the rate of population growth per day (r) for each rotifer species. Using a regression between food concentration and the r for each rotifer species, we calculated the minimal food level required to maintain a zero growth rate (threshold food concentration). For all the tested species, there was a direct and positive relationship between food concentration and peak population density. The highest peak density (738 ind. mL−l) was achieved by L. patella at 0.4X106 cells mL−1. At this food density, B. calyciflorus was only able to reach about 10 ind. mL−1. The highest r value (0.46 d−1) was observed for L. patella at 0.4X106 cells mL−1; at this food concentration, B. calyciflorus and E. dilatata had much lower r values (0.21 and 0.23 d−1, respectively). On a dry weight basis, L. patella had the lowest threshold food concentration (0.0023 mg C t−1 d−1), while B. calyciflorus needed much higher levels (2.04 mg C L−1 d−1). Larger-bodied taxa had higher threshold food concentrations than the smaller-bodied rotifers." @default.
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- W2073758407 date "2007-03-01" @default.
- W2073758407 modified "2023-09-30" @default.
- W2073758407 title "Population Growth and Body Size in Five Rotifer Species in Response to Variable Food Concentration" @default.
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- W2073758407 doi "https://doi.org/10.1080/02705060.2007.9664139" @default.
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