不同水草对克氏原螯虾幼虾生长的影响

Effects of Different Aquatic Weeds on the Growth of Procambarus clarkii Juvenile

为研究克氏原螯虾对不同水草的喜好,选取浮萍、伊乐藻、金鱼藻和小球藻等,在室内玻璃钢池中研究不同水草对克氏原螯虾生长的影响。结果表明,选用的水草及其组合均可用于克氏原螯虾养殖,其中处理⑤(饲料、金鱼藻、浮萍和螺蛳)的效果最佳,处理③(饲料、伊乐藻和金鱼藻)的效果次之,不同处理间差异不显著。在养殖过程中,不同处理间水质差别不大,但不同时间、不同处理间水质存在一定的差异。该研究结果可为克氏原螯虾养殖中的水草种植提供一定的指导。

In order to study the preference of Procambarus clarkii to different aquatic weeds,we selected Lemna minor L.,Elodea nattalii,Ceratophyllum demersum L.and Chlorella sp.to study the effects of different aquatic weeds on the growth of P.clarkii in indoor fiberglass reinforced plastic ponds.The results indicated that all the selected weeds and their combinations could be used in the aquaculture of P.clarkii.The effect of treatment⑤(formula feed,C.demersum,L.minor and Margarya melanioides)was the best,followed by treatment③(formula feed,E.nattalii and C.demersum).There was no significant difference among different treatments.During the breeding process,there was little difference of water quality among different treatments,but there were certain differences of water quality at different time among different treatments.The study results could provide some guidance for the aquaculture of P.clarkii.