The valve-movement model for the mediterranean mussel, Mytilus galloprovincialis Lamarck, 1819 (Bivalvia: Mytilidae)

The valve-movement model for the mediterranean mussel, Mytilus galloprovincialis Lamarck, 1819... The valves of a mussel shell are two levers that are joined together by an elastic ligament; their movements are similar to some extent to those made by a human arm at the elbow joint. The ligament is found to have a quasi-elastic property; in the operating range of valve opening, the elastic force of the ligament is proportional to the deformation. A minor mathematical model for the movements of mussel valves is formulated: valve movements performed due to contraction of adductor muscles are considered as movements of an extremely damped spring pendulum. Simulated and actual movements of mussel valves are compared. The viscosity factor during the contraction of adductor muscles is found to be an order of magnitude lower than that during relaxation. This probably results from the differences in the physiological mechanisms of muscle contraction and relaxation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

The valve-movement model for the mediterranean mussel, Mytilus galloprovincialis Lamarck, 1819 (Bivalvia: Mytilidae)

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074015010034
Publisher site
See Article on Publisher Site

Abstract

The valves of a mussel shell are two levers that are joined together by an elastic ligament; their movements are similar to some extent to those made by a human arm at the elbow joint. The ligament is found to have a quasi-elastic property; in the operating range of valve opening, the elastic force of the ligament is proportional to the deformation. A minor mathematical model for the movements of mussel valves is formulated: valve movements performed due to contraction of adductor muscles are considered as movements of an extremely damped spring pendulum. Simulated and actual movements of mussel valves are compared. The viscosity factor during the contraction of adductor muscles is found to be an order of magnitude lower than that during relaxation. This probably results from the differences in the physiological mechanisms of muscle contraction and relaxation.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Apr 8, 2015

References

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