First published online November 1, 2006
Journal of Experimental Biology 209, 4503-4514 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02538
Jet propulsion in the cold: mechanics of swimming in the Antarctic scallop Adamussium colbecki
Mark Denny* and
Luke Miller
Hopkins Marine Station of Stanford University, Pacific Grove, CA
93950, USA

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Fig. 1. A heuristic model for the jet-inflation cycle in a swimming scallop (see
text). See Table 1 for a
definition of symbols.
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Fig. 2. The apparatus used to measure the resonant frequency and logarithmic
decrement of the shell-hinge system. See
Table 1 for a definition of
symbols.
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Fig. 3. The apparatus used to measure the thermoelastic properties of abductin.
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Fig. 4. The geometry of the shell used to calculate stress in the resilium.
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Fig. 5. The apparatus used to measure the resilience of abductin. See
Table 1 for a definition of
symbols.
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Fig. 6. Results of a representative thermoelastic experiment. The component of
force due to internal energy is negligible, while that due to entropy closely
approximates the total force, indicating that A. colbecki abductin is
an entropy elastomer.
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Fig. 7. Stress-compression ratio curves for A. colbecki abductin at four
temperatures.
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Fig. 8. The resilience of A. colbecki abductin as a function of
temperature. The broken lines show the range of values measured on a temperate
scallop (Bowie et al., 1993 ).
Error bars are 95% confidence limits.
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© The Company of Biologists Ltd 2006