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Table 2 Summary of biochemistry and swimming trial results

From: Extending the 2% rule: the effects of heavy internal tags on stress physiology, swimming performance, and growth in brook trout

Group N b Chloride (mM) Glucose (mM) Lactate (mM) Cortisol (ng · ml -1) HCT N u U crit(bl · s -1)
Sham 15 123.04 (1.03) 3.94 (0.10) 2.49 (0.19) 1.89 (0.29) 29.3 (0.8) 8 5.5 (0.2)
Light 14 121.24 (0.90) 3.95 (0.20) 2.35 (0.22) 2.61 (0.72) 30.9 (1.2) 9 5.5 (0.2)
Heavy 3 122.00 (1.12) 4.03 (0.16) 1.81 (0.08) 2.22 (1.04) 29.9 (1.5) 3 5.9 (0.6)
Lost 11 121.86 (0.66) 3.92 (0.24) 1.85 (0.23) 1.47 (0.45) 29.6 (1.4) 2 6.7 (0.1)
  1. Mean (±SEM) levels of circulating chloride ions, glucose, lactate and cortisol in blood plasma HCT (% packed cell volume) recorded on the final day of sampling, 33 days post tagging. Nb is the number of samples used in the analysis of blood biochemistry, Nu is the number of fish in each group that were used in flume swimming trials conducted on days 21 to 23 post tagging, Ucrit represents maximum recorded swimming velocity. No significant differences were found in any variables between treatment groups (ANOVA, P >0.05).