A Conceptual Model for the Regulation of Cardiac and Ventilatory Activity of the Portunid Crab, Portunus pelagicus (Linnaeus)

Gribble N. (1994) A Conceptual Model for the Regulation of Cardiac and Ventilatory Activity of the Portunid Crab, Portunus pelagicus (Linnaeus). Journal of Theoretical Biology, 168 1: 19-29. doi:10.1006/jtbi.1994.1084


Author Gribble N.
Title A Conceptual Model for the Regulation of Cardiac and Ventilatory Activity of the Portunid Crab, Portunus pelagicus (Linnaeus)
Journal name Journal of Theoretical Biology   Check publisher's open access policy
ISSN 0022-5193
Publication date 1994-05-07
Sub-type Article (original research)
DOI 10.1006/jtbi.1994.1084
Open Access Status Not yet assessed
Volume 168
Issue 1
Start page 19
End page 29
Total pages 11
Subject 1100 Agricultural and Biological Sciences
Abstract Portunus pelagicus in common with a number of large decapod crustaceans displays a discontinuous pattern of cardiac activity and ventilation (pausing or pause/pulsing). Energy saved by pulsed activity can be explained by reference to non-linear arterial analogues where decreased impedance to pulsatile flow occurs at or above a resonant frequency. A "two-position regulator" optimal control model is proposed to maximize cardiac pump efficiency by optimising the duration of the pulse at or above this resonant frequency. Simulations of the control model are consistent with parameters observed from P. pelagicus.
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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