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The Efficacy of Geraniol and ß‐Citronellol against Freshwater and Marine Monogeneans
Author(s) -
MoralesSerna Francisco N.,
MartínezBrown Juan M.,
AvalosSoriano Anaguiven,
SarmientoVázquez Sara,
HernándezInda Zaira L.,
MedinaGuerrero Rosa M.,
FajerÁvila Emma J.,
IbarraCastro Leonardo
Publication year - 2020
Publication title -
journal of aquatic animal health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 52
eISSN - 1548-8667
pISSN - 0899-7659
DOI - 10.1002/aah.10109
Subject(s) - biology , geraniol , citronellol , nile tilapia , oreochromis , tilapia , gill , aquaculture , anthelmintic , fishery , veterinary medicine , zoology , fish <actinopterygii> , botany , essential oil , medicine
Monogeneans are parasitic flatworms that may be a threat for finfish aquaculture. In this study, the anthelmintic activity of two terpenes, geraniol and β‐citronellol, was tested in vitro against ancyrocephalin and diplectanid monogeneans. Experiments were performed in both water and a culture medium. We observed that monogeneans in culture medium may be more tolerant to treatments compared with bioassays performed only in water. Concentrations of 300 mg/L of both compounds were required to kill 100% of monogeneans at 1 h postexposure. The toxicity of β‐citronellol to fish was not evaluated. However, geraniol at 300 mg/L and 150 mg/L killed juvenile Nile Tilapia Oreochromis niloticus and White Snook Centropomus viridis , respectively, after a few minutes. Therefore, the present work suggests that other alternatives should be studied for use against monogeneans in aquaculture.