扬州大学学报（农业与生命科学版）2024，Vol.45Issue(1)：114-122,9.DOI:10.16872/j.cnki.1671-4652.2024.01.015
不同鲢鳙配比对池塘浮游植物群落结构特征及水质的影响
Effects of different proportions of silver carp and bighead carp on phytoplankton community structure and water quality in ponds
摘要
Abstract
To study the effects of different proportions of silver carp and bighead carp on phytoplankton community structure and water quality,three experimental groups were set up,with proportions of silver carp and bighead carp of 1∶1(group A),3∶7(group B)and 1∶9(group C),respectively.Each group with two replicates(A1,A2;B1,B2;C1,C2)was equipped with the same density of piceus,crucian carp,carp,dace and cat-fish at the same time.The cul-ture period was 194 days.The results showed that a total of 53 genera of phytoplankton from 6 phyla were identified in 7 sampling sessions in the three ponds,among which the green algae were the most abundant,accounting for 40.3％of the total number of species;The total density of phytoplankton ranged from 30.07 to 123.83 × 104 ind·L-1,and the bio-mass ranged from 0.49 to 2.51 mg·L-1.The diversity index H showed that group B was light pollution,and group A and C were β-medium pollution.The evenness index J showed that group A was heavily polluted,while group B and C were α-medium polluted.The richness index D showed that groups A,B and C were all lightly polluted.The content of CODMn and TN in group B was lower than that in other groups,but the water quality standard rate was the highest.In general,the'3∶7'ratio of silver carp and bighead carp is beneficial to the diversity of phytoplankton communities and ecological health of multi-species fish mixed freshwater ponds.关键词
浮游植物/鲢鳙配比/群落特征/水质Key words
phytoplankton/silver carp and bighead ratio/community characteristics/water quality分类
农业科技引用本文复制引用
司楠,李文红,程光平,麻艳群,张亚军,董升辉,程蔓,古昌辉..不同鲢鳙配比对池塘浮游植物群落结构特征及水质的影响[J].扬州大学学报（农业与生命科学版）,2024,45(1):114-122,9.基金项目
广西重点研发计划项目(桂科AB21220019) （桂科AB21220019）
广西罗非鱼等淡水物种生态养殖集成技术创新与示范项目(桂科AA17204095-2) （桂科AA17204095-2）
