Abstract
The hypertrophic subtropic Donghu Lake's dense water bloom (of mainlyMicrocystis, Anabaena andOscillatoria) that occurred annually from the beginning of the 1970s, has disappeared since 1985. The influence of planktivorous fishes (silver and bighead carps) on the water bloom was studied for three years using the enclosure method. The enclosures stocked densely with bighead and/or silver carp were free of water bloom during the experimental period. The water bloom that appeared in the fish-free enclosures was completely eliminated in 10–20 days by introduction of silver and/or bighead carp(grass carp was not effective in controlling water bloom). This study showed clearly that grazing pressure by planktivorous fishes is a key factor in eliminating water bloom from the lake.
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References
Benndorf, J., Kneschke, H., Lossatz, K. et al., 1984. Manipulation of the pelagic food web by stocking with predacious fishes.Int. Revue ges. Hydrobiol. 69: 407–428.
Carpenter, S.R., Kitchell, J. F., Hodgso, J. R. et al., 1987. Regulation of lake primary productivity by food web structure.Ecology 68: 1863–1876.
Chen Hongda, 1989. Impact of aquaculture on the ecosystem of the Donghu Lake, Wuhan.Acta Hydrobiol. Sinica 13: 359–368 (in Chinese with English abstract).
Chen Hongda, Ho Tsuhua, 1975. Standing crop of the macrophyte community in Lake Donghu, Wuhan, with reference to problem of its rational pisciculture utilization.Acta Hydrobiol. Sinica 5: 410–420 (in Chinese with English abstract).
He Xiqin, Xie Hongao, 1966. Feeding habits of grass carp (Ctenopharyngodon idellus) from the East Lake, Wuchang.In: Collected Papers of the 9th Plenary Congress of the Fisheries Research Committee of the Wester Pacific, Science Press, Beijing pp. 6–13. (in Chinese).
Jao Chinchin, Zhang Zongshe, 1980. Ecological changes of phytoplankton in Lake Donghu, Wuhang, during 1956–1975 and the eutrophication problem.Acta Hydrobiol. Sinica 7: 1–17 (In Chinese with English abstract).
Kajak, Z., Rybak, J., Spodniewska, I. et al., 1975. Influence of the planktivorous fish,Hypophthalmichthys molitrix, on the plankton and benthos of the eutrophic lake.Pol. Arch. Hydrobiol. 22: 301–310.
Liu, Jiankang, 1984. Lakes of the middle and lower basins of the Changjiang River, (China).In: Lakes and reservoirs F. B. Taub, ed.), Elsevier Science Publishers B. V., Amsterdam, Netherlands, pp. 331–355.
Lorenzen, C. J., 1967. Determination of chlorophyll and haeopigments: spectrophotometric equations.Limnol. Oceanogr. 12: 343–346.
Shapiro, J., Wright, D. I., 1984. Lake restoration by biomanipulation: Round Lake, Minnesota, the first two years.Freshw. Biol. 14: 371–383.
Xie Ping, Liu Jiankang, Wang Shamei, 1993. Plankton and seston structure in a shallow, eutrophic subtropical Chinese lake.Arch. Hydrobiol. 129: 199–220.
Sheldon, R. W., 1972. Size separations of marine seston by membrane and glass fiber filters.Limnol. Oceanogr. 29: 972–984.
Sondergaard, M., Jeppesen, E., Mortensen, E. et al., 1990. Phytoplankton biomass reduction after planktivorous fish reduction in a shallow, eutrophic lake: a combined effect of reduced internal P—loading and increased zooplankton grazing.Hydrobiology 200/202: 229–240.
Starling, F. L. R. M., Rocha, J. A., 1990. Experimental study of the impacts of planktivorous fishes on plankton community and eutrophication of a tropical Brazilian reservior.Hydrobiologia 200/201: 581–591.
Tatsukawa, K., Zhu, Z. R., Miura, T., 1989. Acoustic estimation of fish populations.In: East Lake—A Phytoplanktivorous Fishes Dominated Lake Ecosystem. T. Miura, ed, Otsu Hydrobiological Station, Kyoto University, Japan, pp. 13–30.
Utermol, H., 1958. Zur Vervollkommung der quantitative phytoplankto—methodik.Mitt. Int. Verein. Theor. Angew. Limnol. 9: 1–38.
Wu Xianwen, Jao Chinchin, 1958. Fish farming in the shallow lakes in China.Verh. Int. Ver. Limnol. 13: 765–769.
Yang Yufen, Huang Xiangfei, 1992. The influence of silver carp and bighead on the zooplankton community structure.J. Lake Sciences 4: 78–86. (in Chinese with English abstract)
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This work was supported by FEBL (State Key Laboratory for Freshwater Ecology and Biotechnology of China) funds and by the National Natural Science Foundation of China (Grant No., 3937014).
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Ping, X. Experimental studies on the role of planktivorous fishes in the elimination ofMicrocystis bloom from Donghu Lake using enclosure method. Chin. J. Ocean. Limnol. 14, 193–204 (1996). https://doi.org/10.1007/BF02850380
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DOI: https://doi.org/10.1007/BF02850380