Open AccessEFFICACY OF QUINALDINE AND MS‐222 ON AMERICAN EEL
Author(s) -
Hinton M. J.,
Loyacano H. A.
Publication year - 1978
Publication title -
proceedings of the annual meeting ‐ world mariculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0164-0399
DOI - 10.1111/j.1749-7345.1978.tb00280.x
Subject(s) - fishery , chemistry , biology
Quinaldine and tricaine methanesulfonate (MS‐222) were tested on glass eel and elver stages of American eel ( Anguilla rostrata ) over periods of 24 and 48 hours at 22 to 22.5°C in soft, reconstituted fresh water. Three concentrations of each anesthetic were tested with 10 eels/ treatment. At the end of the testing period the eels were placed in fresh water and their recovery times noted. MS‐222 was tested at concentrations of 35, 45, and 55 ppm with glass eels. Glass eels in 45 ppm reached stage II within 22 min and remained in this condition throughout the tests. Recovery time for both the 24 and 48‐hour tests was immediate. Two eels in 55 ppm died during the 24‐hour tests and 5 eels died during the 48‐hour test. Concentrations used with elvers were 40, 50, and 55 ppm. Elvers in 55 ppm reached stage II within 30 min. At 24 hours 4 eels remained in stage II condition and one had died. The survivors recovered immediately. At 40 hours 2 eels remained in stage II condition and one had died. The survivors recovered immediately. Quinaldine was tested at concentrations of 15, 20, and 25 ppm with glass eels. These concentrations anesthetized the glass eels to stage II condition within 16 min but were fatal to all eels within 12 hours. Concentrations used with elvers were 8, 10, and 12 ppm. Five elvers in 12 ppm reached stage II within 50 min and at 12 hours all elvers were in stage II condition. At 24 hours 4 elvers were in stage II condition and had a 5 min 20 sec recovery time. This concentration was fatal to all eels within 48 hours.