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Some aspects of the circulatory physiology of the spiny lobster Panulirus interruptus

Some aspects of the circulatory physiology of the spiny lobster Panulirus interruptus 227 29 29 4 4 B. W. Belman Department of Biological Sciences University of California Sanca Barhara California USA Marine Science Institute University of California Sanca Barhara California USA Abstract The blood circulatory system and the circulatory dynamics of the spiny lobster Panulirus interruptus (Randall) have been examined in detail. A mean absolute blood pressure of 36.5 cm-H 2 O and a mean pulse pressure of 27 cm-H 2 O, show this species to have the highest pressure-driven circulation yet measured in decapod crustaceans. Mean blood velocities have been directly measured in intact animals for the first time. These velocities range from over 10 cm/sec in the large arteries to less than 1.0 cm/sec in the sinuses. Total blood volume is variable but averages near 30% of the wet weight, while heart volume averages 0.3% of the wet weight. The blood velocity and volume data are used to compute circulatory parameters such as cardiac output, stroke volume and turnover time. Comparisons with other animals suggest that the so-called “open-system” characteristic of crustaceans may be much more effective than previously supposed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Marine Biology Springer Journals

Some aspects of the circulatory physiology of the spiny lobster Panulirus interruptus

Belman, B.
Marine Biology , Volume 29 (4) – Apr 1, 1975
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References (37)

Publisher
Springer Journals
Copyright
Copyright © 1975 by Springer-Verlag
Subject
Life Sciences; Biomedicine general; Oceanography; Ecology; Microbiology; Zoology
ISSN
0025-3162
eISSN
1432-1793
DOI
10.1007/BF00388849
Publisher site
See Article on Publisher Site

Abstract

227 29 29 4 4 B. W. Belman Department of Biological Sciences University of California Sanca Barhara California USA Marine Science Institute University of California Sanca Barhara California USA Abstract The blood circulatory system and the circulatory dynamics of the spiny lobster Panulirus interruptus (Randall) have been examined in detail. A mean absolute blood pressure of 36.5 cm-H 2 O and a mean pulse pressure of 27 cm-H 2 O, show this species to have the highest pressure-driven circulation yet measured in decapod crustaceans. Mean blood velocities have been directly measured in intact animals for the first time. These velocities range from over 10 cm/sec in the large arteries to less than 1.0 cm/sec in the sinuses. Total blood volume is variable but averages near 30% of the wet weight, while heart volume averages 0.3% of the wet weight. The blood velocity and volume data are used to compute circulatory parameters such as cardiac output, stroke volume and turnover time. Comparisons with other animals suggest that the so-called “open-system” characteristic of crustaceans may be much more effective than previously supposed.

Journal

Marine Biology – Springer Journals

Published: Apr 1, 1975

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