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Movements of benthonic organisms and bottom currents as measured from the bathyscapt Trieste
LaFond, E.C. (1967). Movements of benthonic organisms and bottom currents as measured from the bathyscapt Trieste, in: Hersey, J.B. (Ed.) Deep-sea photography. The John Hopkins Oceanographic Studies, 3: pp. 295-302
In: Hersey, J.B. (Ed.) (1967). Deep-sea photography. The John Hopkins Oceanographic Studies, 3. The John Hopkins Press: Baltimore. 310 pp., more
In: The John Hopkins Oceanographic Studies. ISSN 0271-2229, more

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    VLIZ: Technology [11080]

Keyword
    Marine

Author  Top 
  • LaFond, E.C.

Abstract
    The ability of the bathyscaph Trieste to remain in one location for a protracted period of time afforded the unique opportunity to view and photograph the benthonic organisms in the San Diego Trough off Southern California. Both direct visual and photographic observations were made. Through time-lapse photography it has been possible to determine (a) water currents which varied in speed between 0.02 and 0.06 knots, and in direction from 335° to 040°; (b) that 20% of a large brittle star population ( Ophiomusium lymani and Amphilepis sp.)moved over a 44-min period and (c) that they moved in random directions, with speeds of 0.7 to 3.4 cm/min. Underwater photography revealed that the sea floor may be likened to a moving carpet, with a variety of organisms crawling on the surface.

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