Fig. 1.

Energetic swimming comparisons of propulsive modes. (A) Net COT based on wet mass. Data for fliers and runners are replotted from the study by Schmidt-Nielsen (30). Crustaceans and squid are replotted from the study by Larson (12). Fish data were combined from both of these studies (12, 30). Data for A. aurita were calculated with swimming speed vs. body size from the current study and supplemented with data from the studies by Martin (27) and McHenry and Jed (28) and by metabolic data from the study by Uye and Shimauchi (29). (B) Net respiration rates of locomotion for the salmon (O. nerka) and a rhizostome jellyfish (S. meleagris). (C) Net respiration rates of locomotion for S. meleagris and A. aurita. (D) Net COT for all three species. Data used for respiration and COT in salmon were obtained from the study by Brett and Glass (31), and Stomolophus data were replotted from the study by Larson (32). WW, wet weight.