摘要
选择人工繁育已实现规模化的澜沧江中上游土著鱼光唇裂腹鱼为研究对象,通过室内野化及放流技术研究,探索光唇裂腹鱼人工繁殖鱼苗野化及增殖放流关键技术。结果表明,停食野化组放流前10 d减少喂食且放流前5 d停食效果最佳;流水野化组放流前10 d加大流水野化效果最佳;放流规格组以全长3~8 cm时效果最佳;放流方式组以平衡水温放流方式效果最佳。试验结果可为提高澜沧江野生土著鱼类人工增殖放流的鱼苗成活率和增殖放流效果提供技术支撑。
Taking Schizothorax lissolabiatus Tsao as research object,through the research on indoor wilding and drainage technology,in order to explore the key technology of wildization and releasing.The results showed that the effect of reducing feeding 10 days before discharge and stopping feeding 5 days before discharge was the best in the stop-feeding wilderness group;the effect of increasing wilderness 10 days before discharge was the best in the stop-feeding wilderness group;the effect of 3-8 cm in the discharge specification group was the best;and the effect of balanced water temperature drainage was the best in the release mode group.The results of the experiment could provide technical support for improving the survival rate and the effect of artificial multiplication and release of wild indigenous fish in Lancang River.
引文
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