食物浓度对角突臂尾轮虫种群增长、个体大小和卵大小的影响

摘要/Abstract

摘要： 以蛋白核小球藻为食物,应用群体累积培养法研究了食物浓度对角突臂尾轮虫种群增长、个体大小和卵大小等的影响.结果表明,食物浓度对角突臂尾轮虫种群增长率、个体大小和卵大小均有极显著影响.其中,轮虫种群增长率与食物浓度间呈曲线相关;当食物浓度为8.2453×10⁶cells·mL^-1时,种群增长率达最大值0.6085d-1;在所研究的食物浓度范围内,轮虫个体具有随食物浓度的增大而增大的趋势,轮虫卵体积在中等食物浓度范围(6.0×10⁶～9.0×10⁶cells·mL^-1)时较大.

关键词: 角突臂尾轮虫, 食物浓度, 种群增长率, 个体大小　卵大小, 叶面积指数, 尺度提升, 蒸散发, Penman-Monteith公式

Abstract: With the food Chlorella pyrenoidosa and the method of population accumulative culture, the effects of food concentration on the population growth, body size, and egg size of the freshwater rotifer Brachionus angularis were studied. The results showed that there were very significant effects of food concentrations on the population growth rate, body size and egg size. The relationship between the population growth rate and the food concentration was curvilinear correlation. When the food concentration was 8.2453?10⁶cells穖L^-1, the population growth rate reached it's maximum, 0.6085d-1. Body size tended to enlarge with increasing food concentration. At the intermediate range of food levels between 6.0?10⁶ cells穖L^-1 and 9.0?10⁶ cells穖L^-1, the egg volume was larger than those at the other food concentrations.

Key words: Brachionus angularis, Food concentration, Population growth rate, Body size, Egg size, leaf area index, Penman-Monteith equation, scaling up, evapotranspiration

中图分类号:

S963.21⁺4

胡好远, 席贻龙, 耿红. 食物浓度对角突臂尾轮虫种群增长、个体大小和卵大小的影响[J]. 应用生态学报, 2002, (7): 875-878.

HU Haoyuan, XI Yilong, GENG Hong . Effects of food concentration on population growth, body size, and egg size of the freshwater rotifer Brachionus angularis[J]. Chinese Journal of Applied Ecology, 2002, (7): 875-878.

参考文献

[1] Duncan A,Gulati RD.1983.A diurnal study of planktonic rotifer populations in Parakrama Samudra Reservoir,Sri Lanka.In:Schiemer F ed.Limnology of Parakrama Samudra,Sri Lanka:Case Study of an Ancient Man-made Lake in the Tropics.The Huague:Dr W.Junk,Publisher.95～106
[2] Galindo MD,Guisande C,Toja J.1993.Reproductive investment of several rotifer species.Hydrobiologia,225/256:317～324
[3] Gilbert JJ.1963.Mictic female production in rotifer Brachionus calyciflorus.J Exp Zool,153:113～124
[4] Guisande C,Mazuelos N.1991.Reproductive pattern of Brachionus calyciflorus Pallas at different food concentrations.J Plankton Res,13(2):279～286
[5] King CE.1967.Food,age and the dynamics of a laboratory population of rotifers.Ecology,48:111～128
[6] Kirk KL.1997.Egg size,offspring quality and food level in planktonic rotifers.Freshwater Biol,37:515～521
[7] Pilaska J.1977.Ecophysiological studies on Brachionus rubens Ehrbg.(Rotatoria):II.Production and respiration.Pol Arch Hydrobiol,24:329～342
[8] Robertson JR,Salt GW.1981.Responses in growth,mortality and reproduction to variable food levels by the rotifer,Asplanchna girodi.Ecology,62:1585～1596
[9] Roff DA.1992.The Evolution of Life Histories.New York:Chapman and Hall.
[10] Sarma SSS,Rao TR.1987.Effect of food level on body size and egg size in a growing population of the rotifer Brachionus patulus Muller.Arch Hydrobiol,111:245～253
[11] Snell TW,Carrillo K.1984.Body size variation amang strains of the rotifers Brachionus plicatilis.Aquaculture,73:359～367
[12] Starkweather PL.1980.Aspects of the feeding behavior and trophic ecology of suspension-feeding rotifers.Hydrobiologia,73:63～72
[13] Stemberger RS,Gilbert JJ.1985.Body size,food concentration and population growth in planktonic rotifer.Ecology,66:1151～1159
[14] Walz N.1983.Continuous culture of the pelagic rotifers Keratella cochlearis and Brachionus angularis.Arch Hydrobiol,98:70～92
[15] Walz N,Rothbucher F.1991.Effect of food concentration on body size,egg size and population dynamics of Brachionus angularis (Rotatoria).Verh Internat Verein Limnol,24:2750～2753
[16] Xi Y-L(席贻龙),Huang X-F(黄祥飞).1999.Effect of food supply in both food quality and quality on the population dynamics of Brachionus urceolaris.Acta Hydrobiol Sin(水生生物学报),23(3):227～234(in Chinese)
[17] Xi Y-L(席贻龙),Huang X-F (黄祥飞) and Wang B-Q (汪本勤).2000.The effect of enviromental factors on the population dynamics of Brachionus calyciflorus.J Anhui Normal University (Natural Science) (安徽师范大学学报(自然科学版)),23(4):334～338(in Chinese)
[18] Zhang Z-X(张宗涉),Huang X-F(黄祥飞).1991.Method for Study on Freshwater Plankton.Beijing:Science Press.364～367(in Chinese)