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J Exp Biol (2009) 212 (16): 2656–2667.
Published: 15 August 2009
... be beneficial because propulsive efficiency declines after the pinch off occurs. Delaying the pinch off enables the medusae to produce more thrust without a loss of efficiency. A similar delay was observed for another jetting hydromedusa N. bachei , which was found to have a formation time of T * ≈8( Dabiri...
J Exp Biol (2007) 210 (11): 1868–1873.
Published: 01 June 2007
...John O. Dabiri; Sean P. Colin; John H. Costello SUMMARY Cnidarian medusae, commonly known as jellyfish, represent the earliest known animal taxa to achieve locomotion using muscle power. Propulsion by medusae requires the force of bell contraction to generate forward thrust. However, thrust...
Includes: Multimedia, Supplementary data
J Exp Biol (1985) 119 (1): 149–164.
Published: 01 November 1985
...THOMAS L. DANIEL The influence of unsteady (time varying) motion on the energetics of swimming was investigated with measurements and theoretical estimates of the specific cost of locomotion for two species of hydrozoan medusae: Gonionemus vertens L. Agassiz and Stomotoca atra L. Agassiz...