Cardiac and Locomotory Muscle Mass in Antarctic Fishes
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BW(g)
P1 = .263 + .002 • BW (g); RI\2 = .732
P2 = .075 + 3.332E-4 • BW (g); RI\2 = .501
P3 = .222 + .003 • BW (g); RI\2 = .894
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Fig. 3. Lateral pectoral muscle masses. PI, abductor superficialis; P2, erector ventralis; P3,
abductor profundis; BW, body weight
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BW(g)
P6 = .819 + .004' BW (g); RI\2 = .874
P4 = .212 + .001' BW (g); RI\2 = .616
P5 = .045 + .001 • BW (g); R"2 = .825
Fig. 4. Medial pectoral muscle masses. P4, adductor superficialis; P5, erector dorsalis; P6,
adductor profundis; BW, body weight
those used for the power stroke in labriform locomotion (adduction of the
pectoral fins), showed a greater absolute mass, but scaled similarly with
those used for the recovery fin stroke (abduction; lateral pectoral muscles).