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Effect of available food and temperature on the growth and reproduction of Daphnia rosea
Ping Xie; Toshio Iwakumab; Koichi Fujiic; Xie, P, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2000
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
Volume15Issue:3Pages:379-388
AbstractPopulation parameters of Daphnia rosea were studied at various concentrations of Chlorella sp. (0.25, 0.75 and 3.0 mg C l(-1)) at several temperatures (20, 25, 28, and 30 degrees C) in the laboratory. Although there were some differences in the degrees of the effects of the various temperature-food combinations, both food and temperature exerted influences on almost all of the main population parameters of D. rosea. At a water temperature of 28 degrees C, growth and reproduction were reduced, and at the lowest food level (0.25 mgC l(-1)), reproduction failed. D, rosea did not survive at 30 degrees C in spite of abundant food supply, indicating that 30 degrees C is a physiological limit. A positive relationship between body length and brood size was recognized at high and medium food levels. The slope of the regression was the highest at the highest food level and at the lowest temperature (20 degrees C). The low food level exerted a negative influence on the net reproductive rate by lowering the size of egg-bearing females, by decreasing the brood size of each size class, by decreasing the brood number per female, and by increasing the period of empty brood chamber. High water temperature (28 degrees C) also exerted a negative influence on the net reproductive rate in a similar way. For the better understanding of the key factors driving the midsummer dynamics of daphnids in the field, it may be of crucial importance to compare the population parameters of the field populations with experimentally derived values under controlled conditions of food concentration and temperature.
KeywordPopulation-dynamics
DepartmentInst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; Hokkaido Univ, Grad Sch Environm Earth Sci, Sapporo, Hokkaido 0600810, Japan; Univ Tsukuba, Inst Biol Sci, Tsukuba, Ibaraki 305, Japan
Subject AreaEcology ; Limnology
Indexed BySCI
WOS IDWOS:000088709800010
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/10110
Collection期刊论文
Corresponding AuthorXie, P, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Ping Xie,Toshio Iwakumab,Koichi Fujiic,et al. Effect of available food and temperature on the growth and reproduction of Daphnia rosea[J]. JOURNAL OF FRESHWATER ECOLOGY,2000,15(3):379-388.
APA Ping Xie,Toshio Iwakumab,Koichi Fujiic,&Xie, P, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.(2000).Effect of available food and temperature on the growth and reproduction of Daphnia rosea.JOURNAL OF FRESHWATER ECOLOGY,15(3),379-388.
MLA Ping Xie,et al."Effect of available food and temperature on the growth and reproduction of Daphnia rosea".JOURNAL OF FRESHWATER ECOLOGY 15.3(2000):379-388.
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