水生生物学报2018，Vol.42Issue(2)：356-363,8.DOI:10.7541/2018.045
紫黑翼蚌钩介幼虫寄主鱼的人工筛选及寄生包囊形成观察
ARTIFICIAL SELECTION OF SUITABLE HOST FISH AND PARASITIC CYST FORMATION OF GLOCHIDIA IN PINK HEELSPLITTER,POTAMILUS ALATUS
摘要
Abstract
16 different fish species were tested to select suitable host fish for pink heelsplitter,Potamilus alatus.The results showed that transformed juveniles were only obtained from freshwater drum Aplodinotus grunniens,the only suitable host fish for pink heelsplitter, and the average transformed rate was (49.6±9.4)%, and that over parasitic caused mortality of infested fish.It was proven that other 14 freshwater fish species except red drum Sciaenops ocellatus have no potential as host of pink heelsplitter. SEM showed that glochidia could infest on the gill of red drum that belong to the same family as freshwater drum, and form parasitic cyst with faster on large red drum than juveniles. However, the infested red drum showed a rather high mortality rate under the double stress of infestation and low osmotic in freshwa-ter, suggesting that desalination and nutrient intensive cultivation should improve the survival rate of infested red drum. The glochidia detached from yellow catfish, smallmouth bass and blue catfish in 1-2d after infestation almost all died, suggesting that certain larval lethal factors may exist in these fishes. Comprehensive analysis indicated that pink heelsplitter was the most specific Unionidae species for host fish, and the red drum might be the potential host for pink heelsplitter.关键词
紫黑翼蚌/寄主鱼筛选/眼斑拟石首鱼/寄生包囊Key words
Pink heelsplitter/Host fish selection/Red drum/Parasitic cyst分类
农业科技引用本文复制引用
闻海波,马学艳,徐跑,张呈祥,徐良,金武,华丹,顾若波..紫黑翼蚌钩介幼虫寄主鱼的人工筛选及寄生包囊形成观察[J].水生生物学报,2018,42(2):356-363,8.基金项目
中国水产科学研究院淡水渔业研究中心中央基本科研业务费(2015JBFM02) （2015JBFM02）
江苏省自然基金项目(BK20161145)资助[Supported by Central Public-interest Scientific Institution Basal Research Fund,Freshwater Fisheries Research Center,CAFS （BK20161145）
the Natural Science Foundation of Jiangsu Province,China(BK20161145)] （BK20161145）
