Table 2.

Strain estimated for superficial red muscle fibers from mean morphological values and βmax during steady swimming in four viscosities

Estimated muscle strain (%Lo)
SiteBody width (%L)Centrum length (%L)1 cSt (Re=46225)10 cSt (Re=5726)100 cSt (Re=743)1000 cSt (Re=81)
11±0.25 1.2±0.03 4.3 4.1 11.6 8.7 
10±0.15 1.2±0.05 5.2 5.6 12.1 11.8 
11±0.20 1.3±0.05 5.8 6.1 14.6 13.2 
10±0.15 1.2±0.05 8.0 7.8 15.4 16.5 
9.0±0.40 1.2±0.09 10.5 13.7 19.9 22.4 
7.0±0.05 1.1±0.09 15.2 17.6 21.8 23.2 
4.0±0.04 1.0±0.06 16.6 16.0 17.0 19.5 
2.0±0.15 0.80±0.08 15.3 15.4 15.2 16.1 
Estimated muscle strain (%Lo)
SiteBody width (%L)Centrum length (%L)1 cSt (Re=46225)10 cSt (Re=5726)100 cSt (Re=743)1000 cSt (Re=81)
11±0.25 1.2±0.03 4.3 4.1 11.6 8.7 
10±0.15 1.2±0.05 5.2 5.6 12.1 11.8 
11±0.20 1.3±0.05 5.8 6.1 14.6 13.2 
10±0.15 1.2±0.05 8.0 7.8 15.4 16.5 
9.0±0.40 1.2±0.09 10.5 13.7 19.9 22.4 
7.0±0.05 1.1±0.09 15.2 17.6 21.8 23.2 
4.0±0.04 1.0±0.06 16.6 16.0 17.0 19.5 
2.0±0.15 0.80±0.08 15.3 15.4 15.2 16.1 

Lo indicates muscle length when the midline is straight. Site indicates the longitudinal positions as described in Table 1. Body width and centrum length values are means ± s.e.m. for four individuals

Reynolds numbers; Re=UL/v, where U is swimming speed, L is total length of the fish, and v is kinematic viscosity

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