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Isometamidium Chloride Reduces Mortality of Adult Chinook Salmon due to Cryptobia salmositica
Author(s) -
Chen Martin F.,
Cheng Yuk W.,
Popochock Denis,
Russell Brian,
Kerwin John,
Bertolini James,
Gleckler Jan,
Snekvik Kevin,
Han Sushan
Publication year - 2011
Publication title -
north american journal of aquaculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 41
eISSN - 1548-8454
pISSN - 1522-2055
DOI - 10.1080/19425120.2011.601977
Subject(s) - broodstock , biology , oncorhynchus , hatchery , chinook wind , protozoan parasite , fishery , aquaculture , zoology , parasite hosting , fish <actinopterygii> , world wide web , computer science
The hemoflagellate protozoan parasite Cryptobia salmositica causes severe mortality during the 2–4‐month sexual maturation period of adult spring Chinook salmon Oncorhynchus tshawytscha at the Solduc State Fish Hatchery, Washington. A single injection of isometamidium chloride hydrochloride in sterile deionized water at 2 mg/kg of body weight significantly reduced broodstock mortality. The progeny of injected adults showed better survival than those of controls (injected with only sterile deionized water) at the eyed‐embryo and first‐feeding stages. No developmental abnormalities were observed in progeny of treated adults at 78 d after first feeding.