Chen Qiyu. A PRELIMINARY STUDY ON THE POPULATION DYNAMICS AND ANNUAL PRODUCTION OF BELLAMYA AERUGINOSA (REEVE) IN LAKE DONG HU, WUHAN[J]. ACTA HYDROBIOLOGICA SINICA, 1987, 11(2): 117-130.
Citation: Chen Qiyu. A PRELIMINARY STUDY ON THE POPULATION DYNAMICS AND ANNUAL PRODUCTION OF BELLAMYA AERUGINOSA (REEVE) IN LAKE DONG HU, WUHAN[J]. ACTA HYDROBIOLOGICA SINICA, 1987, 11(2): 117-130.

A PRELIMINARY STUDY ON THE POPULATION DYNAMICS AND ANNUAL PRODUCTION OF BELLAMYA AERUGINOSA (REEVE) IN LAKE DONG HU, WUHAN

  • Received Date: May 21, 1985
  • Published Date: April 24, 1987
  • On the basis of the data obtained from field quantitative samples and cage stocking, the paper presents the population density, age structure population growth, biomass, production. P/B ratio and seasonal dynamics of Bellamya aeruginosa in various districts of Lake Dong Hu from April, 1982 to March, 1983. Population growth-rate was estimated by means of exponential growth model, and production was calculated by accumulative increase method. The result shows that the annual average biomass of Bellamya aeruginosa in Shui Guo Hu district was 554.37g穖-2, the cumulative production was 604.99g穖-2 year-1, and the coefficient of P/B was 1.09. In Guo Zheng Hu district the average biomass was 286.74g穖-2, the production was 308.99 g穖-2 year-1, and the coefficient of P/B was 1.08.Ecological factors that influence the population dynamics and prodution of Bellamya aeruginosa are discussed briefly.
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