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Efficacy of
tricaine on Peocilia latipinna at different
temperatures and concentrations
Semra Kucuk
Department of Fisheries, Faculty of Agriculture, Adnan
Menderes University, 09100, Aydin, Turkey.
E-mail: skucuk@adu.edu.tr.
Accepted 11 December, 2009 |
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The
present experiment was designed to determine the effects of
tricaine methanesulfonate as an anaesthetic for juvenile
sailfin silver molly Poecilia latipinna at three
different temperatures and anaesthetic concentrations.
Silver molly (230 ± 25 mg and 24.07 ± 5.59 mm) were exposed
to 150, 200, and 250 mg l-1 tricaine
concentrations at 20, 25, and 30°C. Even though, a body of
literature exist about the anaesthetic usage on foodfish
species, not much information seems to be available on
ornamental fish aquaculture. In the experiment, three
tricaine methanesulfonate concentrations for each
temperature were used to anaesthetize silver molly and
recorded their induction, recovery times and survival. The
necessary time to make anaesthesia on fish depended on
concentration intensity and water temperature rise. When
exposed to any of the concentrations, fish achieved a deep
state of anaesthesia with induction times of 0.18 - 1.63 min
and recovered fast in 1.53 - 2.08 min. To maximize safety
and reduce fish mortality and stress, the minimum
concentration producing desirable anesthetic effects was 150
mg l-1 at all three temperature.
Key
words:
Anesthetic, tricaine, Poecilia latipinna,
temperature. |
