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Science 2 June 1978:
Vol. 200. no. 4345, pp. 1056 - 1059
DOI: 10.1126/science.200.4345.1056
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Articles

Recovery and Maintenance of Live Amphipods at a Pressure of 580 Bars from an Ocean Depth of 5700 Meters

A. ARISTIDES YAYANOS 1

1 Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92093

Amphipods were collected from an ocean depth of 5700 meters in a windowed pressure-retaining trap, kept alive in the trap for as long as 9 days aboard ship, and transported to a land laboratory. Observations suggest that the animals can easily tolerate decompressions of 29 percent and briefly of 70 percent of the value of 580 bars, the pressure of their natural habitat. The average pleopod beat frequency was 106 beats per minute. Evidence suggests that food (fish bait) can have at least a 4-day residence time in the gut of these animals.

Submitted on October 26, 1977
Revised on February 15, 1978


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