水产科技情报2025，Vol.52Issue(4)：220-227,8.DOI:10.16446/j.fsti.20240900125
绿狐尾藻覆盖率对黄颡鱼生长及池塘水质的影响
Effects of Myriophyllum elatinoides coverage rates on growth of Pelteobagrus fulvidraco and pond water quality
摘要
Abstract
To investigate the effects of different coverage rates of Myriophyllum elatinoides in Pelteobagrus fulvidra-co culture ponds and to provide a scientific basis for establishing an integrated culture model,five coverage levels of M.elatinoides(0%,10%,20%,30%,and 40%)were implemented in the ponds.The application effects of M.elatinoides at different coverage levels in the integrated pond culture system of P.fulvidraco were evaluated by monitoring the growth of M.elatinoides,the growth performance and survival rate of P.fulvidraco,and changes in water physicochemical parameters.The results showed that:(1)M.elatinoides planting in P.fulvidraco culture ponds had little effect on plant length,plant weight and number of branches,but a 40%coverage rate significantly reduced the average root length(9.01 cm)of M.elatinoides in November(P<0.05).(2)The final average body weight and survival rate of P.fulvidraco showed an apparent trend of"low-high-low"with the increase of M.elatinoides coverage.Notably,the group with 30%coverage had a significantly higher average body weight[(86.40±6.76)g]compared to all other groups,and its survival rate[(94.05±4.74)%]was significantly higher than that of the control group(P<0.05).(3)M.elatinoides planting effectively reduced the levels of NH4+-N,NO2--N,NO3--N,TP,SRP and CODMn in P.fulvidraco culture ponds,and increased the dissolved oxygen(DO).The best purification effect was obtained in 30%treatment.In conclusion,planting M.elatinoides at an approximate coverage rate of 30%in P.fulvidraco culture ponds can enhance both the culture performance of P.fulvidraco and water quality.关键词
绿狐尾藻/覆盖率/黄颡鱼/生长性能/水质Key words
Myriophyllum elatinoides/coverage rate/Pelteobagrus fulvidraco/growth performance/water quality引用本文复制引用
郑艳波,陆有飞,王小欣..绿狐尾藻覆盖率对黄颡鱼生长及池塘水质的影响[J].水产科技情报,2025,52(4):220-227,8.基金项目
广西农业职业技术大学校级科研项目(XKJ2106). （XKJ2106）
