摘要
本文根据1988—1990年对吉林省镇赉渔场养鱼池的生态学调查材料,论述了鱼池生态系统的非生物环境、生物群落、初级和次级生产量、有机碳的平衡、能流和生物能量收支。一年约有28.3—51.4％收入有机碳沉积池底。各池鱼产量约为总收入能量的4.7—10.2％;鲢鳙产量约为浮游植物毛产量的5.1—13.7％;鲤产量约为人工饲料能量的6.5—13.1％。浮游植物和细菌的能量有55.2—81.4％为浮游动物所利用,18.4—22.4％为鲢鳙所利用,仅0.2％为底栖动物所利用。
Based on the data of eoological surveys made in 1988--1990 in fishponds d Zhenlai fish farm of Jilin Province, the abiotic enviroments, biotio co-mmunities. primary and secondary productions, organic carbon balance, flow ofenergy and the biologica energy budgets in the fish pond ecosystems were describ-ed and discussed in this paper. By the estimation of organic carbon balance from 7 ponds, total input were 6804--10329kgC/ha and the output were 3732--5020.5kgC/ha. There were about28. 3--51 .4% input organic carbon to be deposited on the bottom in the year. Totalfish yields were 2369.5--10290kg/ha which about 4.7--10.2% of total input ener-gies. Yields of silver carp and bighead were 1107--4159.5kg/ha, which about5.1--13.7% of phytoplankton gross productions. Yields of carp were 468.5 6480kg/ha,which about 6.5--13.1% of input artificial diets.According to the anylysisof biological energy budges in two ponds, 55.2--81.4% energy of phytoplanktonand bacteria were utilized by zooplankton, 18.4--22.4% by silver carp and big-head, only 0 .2% by zoopbeathos.
出处
《水产学报》
CAS
CSCD
北大核心
1993年第1期24-35,共12页
Journal of Fisheries of China
关键词
养鱼池
生态系
镇赉渔场
fish pond ecosystem
Zhenlai fish farm
