Table 1.

Summary of 20 electromyographic variables across three behaviours in O. mykiss and two behaviours in S. jardinii

Rake
Strike
Chew
VariableO. mykissS. jardiniiO. mykissS. jardiniiO. mykiss
Relative onset timing relative to EP onset (ms)      
   SH relative onset 25.73±3.61 –32.31±3.43 –23.79±6.22 0.26±1.30 –5.76±2.88 
   PH relative onset –91.82±5.88 –92.70±7.61 92.89±11.34 9.31±2.65 61.46±5.49 
   AM relative onset –61.19±3.50 –65.36±6.99 51.79±4.84 14.86±4.10 32.24±2.33 
   HP relative onset 25.38±2.42 –16.62±3.81 –5.82±3.22 –0.52±0.77 –2.00±0.60 
Activity duration (ms)      
   SH duration 41.08±3.84 79.83±5.20 92.39±10.26 38.28±4.75 34.46±3.72 
   PH duration 88.32±5.37 129.64±7.82 136.36±21.89 51.24±5.18 100.25±9.05 
   AM duration 81.67±3.86 98.27±6.98 182.36±25.02 90.56±11.07 110.91±10.53 
   EP duration 49.81±1.59 45.36±2.02 54.04±4.87 37.75±4.58 27.53±2.16 
   HP duration 28.32±2.81 61.64±4.10 67.41±8.06 35.83±4.26 28.55±2.29 
Corrected mean amplitude (mV ratio)      
   SH mean amplitude 0.06±0.01 0.04±0.01 0.12±0.02 0.13±0.03 0.11±0.01 
   PH mean amplitude 0.12±0.02 0.11±0.01 0.06±0.01 0.09±0.02 0.10±0.01 
   AM mean amplitude 0.09±0.01 0.09±0.01 0.08±0.01 0.11±0.01 0.07±0.01 
   EP mean amplitude 0.07±0.01 0.11±0.01 0.10±0.01 0.12±0.02 0.10±0.01 
   HP mean amplitude 0.10±0.01 0.02±0.00 0.09±0.01 0.15±0.01 0.08±0.01 
Integrated area (mV*s)      
   SH integrated area 0.48±0.07 1.61±0.48 3.21±0.53 1.23±0.19 1.32±0.18 
   PH integrated area 5.06±0.73 8.52±0.88 2.15±0.48 2.85±0.57 4.23±0.57 
   AM integrated area 5.12±0.76 3.92±0.55 8.97±2.07 8.61±2.07 5.27±0.75 
   EP integrated area 1.37±0.18 3.06±0.22 1.78±0.31 2.45±0.23 1.10±0.15 
   HP integrated area 0.62±0.04 0.89±0.11 1.01±0.12 3.99±0.70 0.68±0.09 
Total duration of behaviour (ms) 159.99±32.00 150.51±30.10 274.33±54.87 109.97±21.99 176.40±35.28 
Rake
Strike
Chew
VariableO. mykissS. jardiniiO. mykissS. jardiniiO. mykiss
Relative onset timing relative to EP onset (ms)      
   SH relative onset 25.73±3.61 –32.31±3.43 –23.79±6.22 0.26±1.30 –5.76±2.88 
   PH relative onset –91.82±5.88 –92.70±7.61 92.89±11.34 9.31±2.65 61.46±5.49 
   AM relative onset –61.19±3.50 –65.36±6.99 51.79±4.84 14.86±4.10 32.24±2.33 
   HP relative onset 25.38±2.42 –16.62±3.81 –5.82±3.22 –0.52±0.77 –2.00±0.60 
Activity duration (ms)      
   SH duration 41.08±3.84 79.83±5.20 92.39±10.26 38.28±4.75 34.46±3.72 
   PH duration 88.32±5.37 129.64±7.82 136.36±21.89 51.24±5.18 100.25±9.05 
   AM duration 81.67±3.86 98.27±6.98 182.36±25.02 90.56±11.07 110.91±10.53 
   EP duration 49.81±1.59 45.36±2.02 54.04±4.87 37.75±4.58 27.53±2.16 
   HP duration 28.32±2.81 61.64±4.10 67.41±8.06 35.83±4.26 28.55±2.29 
Corrected mean amplitude (mV ratio)      
   SH mean amplitude 0.06±0.01 0.04±0.01 0.12±0.02 0.13±0.03 0.11±0.01 
   PH mean amplitude 0.12±0.02 0.11±0.01 0.06±0.01 0.09±0.02 0.10±0.01 
   AM mean amplitude 0.09±0.01 0.09±0.01 0.08±0.01 0.11±0.01 0.07±0.01 
   EP mean amplitude 0.07±0.01 0.11±0.01 0.10±0.01 0.12±0.02 0.10±0.01 
   HP mean amplitude 0.10±0.01 0.02±0.00 0.09±0.01 0.15±0.01 0.08±0.01 
Integrated area (mV*s)      
   SH integrated area 0.48±0.07 1.61±0.48 3.21±0.53 1.23±0.19 1.32±0.18 
   PH integrated area 5.06±0.73 8.52±0.88 2.15±0.48 2.85±0.57 4.23±0.57 
   AM integrated area 5.12±0.76 3.92±0.55 8.97±2.07 8.61±2.07 5.27±0.75 
   EP integrated area 1.37±0.18 3.06±0.22 1.78±0.31 2.45±0.23 1.10±0.15 
   HP integrated area 0.62±0.04 0.89±0.11 1.01±0.12 3.99±0.70 0.68±0.09 
Total duration of behaviour (ms) 159.99±32.00 150.51±30.10 274.33±54.87 109.97±21.99 176.40±35.28 

For explanation of variables, see text. Total duration of rake cycle was not used for parametric analyses

Values are means ± s.e.m.

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