| 背瘤丽蚌钩介幼虫寄生变态发育和有效积温的研究 |
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| 引用本文： | 张根芳,许式见,方爱萍.背瘤丽蚌钩介幼虫寄生变态发育和有效积温的研究[J].淡水渔业,2010,40(3). |
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| 作者姓名： | 张根芳 许式见 方爱萍 |
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| 作者单位： | 1. 金华职业技术学院,浙江金华,321007;金华市九色珍珠研究所,浙江金华,321017
2. 金华市九色珍珠研究所,浙江金华,321017;金华市威旺养殖新技术有限公司,浙江金华,321017 |
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| 基金项目： | 浙江省重大科技专项，金华市科技计划项目 |
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| 摘 要： | 选用黄颡鱼(Pelteobagrus fulvidraco)作为寄主鱼,研究了背瘤丽蚌(Lamprotula leai)钩介幼虫寄生变态发育的过程、生物学零度和有效积温等重要生物学特征。结果显示,背瘤丽蚌钩介幼虫在黄颡鱼的鳃丝、鳍条或须上均能完成变态发育。在水温(25±1)℃时,寄生期为8 d。钩介幼虫腹缘先与寄主鱼体表组织接触,寄生后5 h,大部分被鱼体组织包裹;第2天,内幼虫足丝消失,钩介幼虫全部被包在包囊中;随着钩介幼虫寄生变态发育的进行,其壳颜色逐渐加深;第7天,变成黑色不透明,并有少量钩介幼虫变态为稚蚌;第8天,稚蚌脱落达到高峰期;第9天,稚蚌全部脱落。在寄生阶段,钩介幼虫壳长、壳高和铰合部长未发生显著变化。钩介幼虫寄生变态发育的生物学零度为12.8℃,有效积温为100.2℃.d。
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| 关 键 词： | 背瘤丽蚌(Lamprotula leai) 钩介幼虫 寄生变态发育 生物学零度 有效积温 |
Parasitic metamorphosis development and effective accumulated temperature of glochidia of Lamprotula leai |
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| ZHANG Gen-fang,XU Shi-jian,FANG Ai-ping.Parasitic metamorphosis development and effective accumulated temperature of glochidia of Lamprotula leai[J].Freshwater Fisheries,2010,40(3). |
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| Authors: | ZHANG Gen-fang XU Shi-jian FANG Ai-ping |
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| Institution: | ZHANG Gen-fang1,2,XU Shi-jian2,3,FANG Ai-ping2,3(1.Jinhua College of Vocation and Technology,Jinhua,Zhejiang 321007,2.Jinhua Jewel Pearl Institute,Zhejiang 321017,3.Jinhua Wellwant New Aquaculture Technology Co.Ltd.,Zhejiang 321017) |
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| Abstract: | Pelteobagrus fulvidraco was selected as host for the glochidia of Lamprotula leai in this study.The important biological characteristics of glochidia L.leai,such as the procession of parasitic metamorphosis development,biological zero temperature and effective accumulated temperature of parasitic metamorphosis development,were studied.The results showed that the mature glochidia were parasitized to the gills,fins or beards of host fish(P.fulvidraco) and started the parasitic metamorphosis development.The pa... |
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| Keywords: | Lamprotula leai glochidia parasitic metamorphosis development biological zero temperature effective accumulated temperature |
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