水产科技情报2026，Vol.53Issue(3)：180-187,8.DOI:10.16446/j.fsti.20240800112
酵母代谢物及其配合物对草鱼养殖水体理化因子和藻类群落的影响
Effects of yeast metabolites and their complexes on physicochemical factors and algal community of grass carp culture water
摘要
Abstract
To investigate the effects of yeast metabolites and their complexes on grass carp culture water,changes in physicochemical factors and algal community were examined after their addition.Compared to the control group C,the pH values increased by 1.9%and 4.3%in experimental groups Y(added yeast metabolites)and T(add-ed yeast metabolite complexes),respectively.Water transparency decreased by 10.3%and 20.5%,respectively.The total nitrogen content increased by 4.3%and 15.6%,and the total phosphorus content increased by 7.3%and 32.7%.A total of 101 algae species belonging to 9 phyla were identified,with Cryptophyta,Cyclotella,and Scenedesmaceae being dominant species in the experimental groups,which can serve as fish food sources.The number of algae species and diversity index were higher in the experimental groups than in the control group.Algal cell density was 7.22×107,11.81×107,and 16.41×107 cells/L for groups C,Y,and T,respectively,and chlorophyll a concentrations were(35.70±3.3),(46.76±4.21),and(58.30±4.01)μg/L,in groups C,Y,and T,respectively.The addition of yeast metabolites and their complexes significantly reduced the relative abun-dance of Cyanobacteria while significantly increasing those of Chlorophyta and Bacillariophyta(P<0.05).These results suggest that yeast metabolites and their complexes have potential for improving pond fertilization in grass carp aquaculture,providing a reference for their scientific application in aquaculture water quality management.关键词
酵母/代谢物/配合物/养殖水体/理化因子/藻类群落Key words
yeast/metabolites/complexes/aquatic water/physicochemical factor/algae community引用本文复制引用
侍强,王辉,宋庆洋,易建华,毕永红,米武娟,魏文志..酵母代谢物及其配合物对草鱼养殖水体理化因子和藻类群落的影响[J].水产科技情报,2026,53(3):180-187,8.基金项目
湖北省中国科学院科技合作专项项目"酵母发酵废液的高值化利用关键技术开发与产业化". （）
