Effects of temperature, salinity, desiccation and chemical treatments on egg embryonation and hatching success of Benedenia seriolae (Monogenea: Capsalidae), a parasite of farmed Seriola spp.
作者： I Ernst , I D Whittington , S Corneillie , C Talbot
DOI: 10.1111/J.1365-2761.2004.00605.X
关键词:
摘要: The effects of temperature and salinity on the embryonation period hatching success eggs Benedenia seriolae were investigated. Temperature strongly influenced period; first hatched 5 days after laying at 28 degreesC 16 14 degreesC. relationship between is described by quadratic regression equations for time to last hatching. Hatching was >70% B. incubated temperatures from However, no embryonated 30 <2% when 24 transfer 48 h. Embryonation similar in sea water 25, 35parts per thousand salinity, but increased higher or lower salinities. When salinities ranging 25 45parts thousand, more than 70% hatched. 20 50parts few 10 15parts thousand. can be prevented desiccation 3 min, immersion 50 s treatment with 25% ethanol min.
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