Table 2: Mean (SE) specific growth rate (SGR)a for Rainbow Trout during three time intervals over 90 days after undergoing one of three treatments: anesthesia (handled, N= 26), anesthesia and sham surgery (sham, N = 24), and anesthesia and implantation of an inert acoustic transmitter (tagged, N = 18). For each variable, values within a row with different letters are significantly different (P < 0.05).

Period Handled Sham Tagged
Day 0 to 37 0.509 (0.055) z 0.447 (0.022) z 0.254 (0.032) y
Day 38 to 65 0.520 (0.038) 0.439 (0.048) 0.482 (0.019)
Day 66 to 90 0.419 (0.034) 0.334 (0.054) 0.406 (0.030)

aSpecific growth rate (SGR) = [(Log final weight - Log initial weight) / time interval] x 100

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