The ventilation cycle in Octopus
The ventilation cycle in Octopus
Pressure measurements made at various points inside the mantle show that the ventilatory stream of the resting animal is driven by very small (often less than 0.5 cm H2O) pressure differences. Inspiration occupies less than one third of the total cycle time, while flow across the gills is evidently continuous, since there is always a pressure differential between the prebranchial and postbranchial parts of the mantle cavity. The fact that branchial heartbeats do not correlate with ventilatory movements is further evidence that water flow through to the gills is both steady and continuous.
ventilation, cephalopod, mantle
375-383
Wells, M.J.
fec5901e-bd36-4a26-94ab-b5c16d6ff557
Smith, P.J.S.
003de469-9420-4f12-8f0e-8e8d76d28d6c
1 May 1985
Wells, M.J.
fec5901e-bd36-4a26-94ab-b5c16d6ff557
Smith, P.J.S.
003de469-9420-4f12-8f0e-8e8d76d28d6c
Wells, M.J. and Smith, P.J.S.
(1985)
The ventilation cycle in Octopus.
Journal of Experimental Biology, 116, .
Abstract
Pressure measurements made at various points inside the mantle show that the ventilatory stream of the resting animal is driven by very small (often less than 0.5 cm H2O) pressure differences. Inspiration occupies less than one third of the total cycle time, while flow across the gills is evidently continuous, since there is always a pressure differential between the prebranchial and postbranchial parts of the mantle cavity. The fact that branchial heartbeats do not correlate with ventilatory movements is further evidence that water flow through to the gills is both steady and continuous.
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Published date: 1 May 1985
Keywords:
ventilation, cephalopod, mantle
Identifiers
Local EPrints ID: 190587
URI: http://eprints.soton.ac.uk/id/eprint/190587
ISSN: 0022-0949
PURE UUID: 41836e5e-2303-4946-a357-b7242ed68911
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Date deposited: 17 Jun 2011 08:23
Last modified: 15 Mar 2024 03:39
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Author:
M.J. Wells
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