7Carpenter S R, Kitchell J F, Hodgson J R. Cascading trophic inter- actions and lake praductivity[J]. Bioscience, 1985, 35(10) : 634- 639.
8Samelle O. Herbivore effects on phytoplankton succession in a eutrophic lake [J]. Ecol Monogr, 1993, 63: 129-149.
9Sosnovsky A, Quiros R. Effects of fish manipulation on the plankton community in small hypetrophic lakes from the Pampa Plain ( Argen- tina)[J]. Limnologica, 2009, 39: 219-229.
10Spataru P, Wohlfarth G W, Hulata G. Studies on the natural food of different fish species in intensively manured polyculture ponds [J].Aquacuhure, 1983, 35: 283-298.