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On seahorse locomotion

  • R. W. Blake (a1)

There are few teleosts which depart from the ‘classical’ ichthyan body form to such an extent as the seahorse, Hippocampus. In this genus the caudal fin is absent and the tail has become prehensile, the usual function of the caudal fin is taken over by the dorsal and pectoral fins. The dorsal and pectoral fins both have a sculling action, the small anal fin moves ‘bodily’ through the water from side to side.

In the past, interest has generally centred on fast moving fish, which have evolved a limited number of body forms, as few variations are possible without a sacrifice of speed. The evolution of the swimming mechanisms of these fish has favoured an increase in the maximum speed and acceleration. In relinquishing the demands of speed the seahorse has released itself from restrictions which would limit its possible range of form.

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Alexander, R. Mcn., 1967. Functional Design in Fishes. 160 pp. University Library Biological Series. London: Hutchinson.

Alexander, R. Mcn., 1973. Muscle performance in locomotion and other strenuous activities. In Comparative Physiology (Ed. Bolis, L., Schmidt-Nielson, K. and Maddrell, S. H. P.). North-Holland.

Bainbridge, R., 1961. Problems of fish locomotion. Symposia of the Zoological Society of London, 5, 1332.

Bergman, R. A., 1964a. The structure of the dorsal fin musculature of the marine teleosts, Hippocampus hudsonius and H. zosterea. Bulletin of the Johns Hopkins Hospital, 114, 325343.

Bergman, R. A., 1964b. Mechanical properties of the dorsal fin musculature of the marine teleost Hippocampus hudsonius. Bulletin of the Johns Hopkins Hospital, 114, 344353.

Breder, C. M., 1926. The locomotion of fishes. Zoologica, New York, 4, 159297.

Breder, C. M. & Edgerton, H. E., 1942. An analysis of the locomotion of the seahorse, Hippo-campus hudsonius, by means of high speed cinematography. Annals of the New York Academy of Sciences, 43, 145172.

Brett, J. R., 1964. The respiratory metabolism and swimming performance of young sockeye salmon. Journal of the Fisheries Research Board of Canada, 21, 11831226.

Fawcett, D. W. & Revel, J. P., 1961. The sarcopasmic reticulum of a fast-acting fish muscle. Journal of Biophysical and Biochemical Cytology, 10 (2), Pt. 2 (Suppl.), 89121.

Harris, J. E., 1937. The mechanical significance of the position and movement of the paired fins in the teleostei. Papers from the Tortugus Laboratory, 31, 171189.

Lighthill, M. J., 1970. Hydrodynamics of aquatic animal propulsion. Annual Review of Fluid Mechanics, 1, 413446.

Wardle, C. S., 1975. Limit of fish swimming speed. Nature, London, 225, 725727.

Webb, P. W., 1971. The swimming energetics of trout. I. Thrust and power output at cruising speeds. Journal of Experimental Biology, 55, 489520.

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Journal of the Marine Biological Association of the United Kingdom
  • ISSN: 0025-3154
  • EISSN: 1469-7769
  • URL: /core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom
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