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Keywords: cephalopod
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Journal Articles
J Exp Biol (2023) 226 (18): jeb246225.
Published: 28 September 2023
..., which has been suggested to be due to the lower efficiency of jet propulsion. The whole-cycle propulsive efficiency of cephalopod molluscs ranges from 38 to 76%, indicating that in some instances jet propulsion can be relatively efficient. Here, we determined the hydrodynamics of hatchling and juvenile...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (23): jeb244977.
Published: 15 December 2022
... propulsion swimming in cuttlefish. Cephalopod Muscle mechanics Ontogeny Power output University of Leeds http://dx.doi.org/10.13039/501100000777 University of Leeds http://dx.doi.org/10.13039/501100000777 Jet propulsion swimming is a key part of cephalopod...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (19): jeb244234.
Published: 12 October 2022
... memory ability has also been demonstrated in the common cuttlefish, a cephalopod mollusc. To explore whether this ability is common to all cephalopods or whether it has emerged to face specific ecological constraints, we conducted an episodic-like memory task with seven Octopus vulgaris . Only one...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (22): jeb242644.
Published: 25 November 2021
...: Intramuscular elastic elements and tensional stress allow for the differential use of arm muscle passive forces during motion in Octopus vulgaris . Cephalopod Muscular hydrostat Motor control Muscle damping Muscle stiffness Muscle elasticity Seventh Framework Programme http://dx.doi.org...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (7): jeb240812.
Published: 15 April 2021
... varies, and the few cephalopod species tested so far have notably acute thresholds of discrimination. However, most studies to date have used artificial sources of polarized light that produce levels of polarization much higher than found in nature. In this study, the ability of octopuses to detect...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (5): jeb237529.
Published: 5 March 2021
...: a phototactic response of extraocular photoreception. Extraocular photoreception has been observed in many and diverse species. Previous research on cephalopods revealed that increased illumination on their skin evokes chromatophore expansion. Recently, the mechanism was investigated and has been termed ‘light...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (1): jeb174862.
Published: 8 January 2019
...; and (iv) shows variability in the intensity of expression of these skin patterns between and within individuals. These data suggest that cephalopods, which are mollusks with an elaborate brain and complex behavior, possess a sleep-like state that resembles behaviorally the vertebrate REM sleep state...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (19): jeb187443.
Published: 10 October 2018
... will impair blood oxygen supply in active squid. Acid–base balance Blood–O 2 binding Hypercapnia Cephalopod Hypoxia tolerance Dosidicus Atmospheric carbon dioxide (CO 2 ) partial pressure ( P CO 2 ) has increased from the pre-industrial mean of 28 Pa (280 μatm, ppmv) to over 40 Pa...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (19): jeb185553.
Published: 5 October 2018
... ; Quijada-Rodriguez et al., 2015 ). However, the role of skin in the removal of nitrogenous waste has not been investigated in cephalopods to date. Wells and Wells (1983) were the first to demonstrate cutaneous oxygen uptake in cephalopods. They found that in addition to branchial oxygen uptake...
Journal Articles
Journal Articles
J Exp Biol (2016) 219 (3): 392–403.
Published: 1 February 2016
... and tail-first, as revealed by 3D jet/fin force and propulsive efficiency measurements. Cephalopod Jet propulsion Fin motion Volumetric velocimetry Wake dynamics Squids swim using a dual-mode system involving a pulsed jet and complex fin motions, both of which are supported and powered...
Journal Articles
J Exp Biol (2015) 218 (10): 1513–1520.
Published: 15 May 2015
...M. Desmond Ramirez; Todd H. Oakley ABSTRACT Cephalopods are renowned for changing the color and pattern of their skin for both camouflage and communication. Yet, we do not fully understand how cephalopods control the pigmented chromatophore organs in their skin and change their body pattern...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (2): 265–275.
Published: 15 January 2015
.... Published by The Company of Biologists Ltd 2015 Cephalopod Chromatophore Flashing Signaling Flickering Crypsis Dosidicus gigas d'Orbigny 1835, commonly known as the Humboldt or jumbo flying squid, is a large pelagic squid of the family Ommastrephidae with a range extending from British...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (24): 4347–4355.
Published: 15 December 2014
...Julia E. Samson; T. Aran Mooney; Sander W. S. Gussekloo; Roger T. Hanlon Sound is a widely available and vital cue in aquatic environments, yet most bioacoustic research has focused on marine vertebrates, leaving sound detection in invertebrates poorly understood. Cephalopods are an ecologically...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (14): 2437–2439.
Published: 15 July 2014
...Carly A. York; Ian K. Bartol Cephalopods have visual and mechanoreception systems that may be employed to sense and respond to an approaching predator. While vision presumably plays the dominant role, the importance of the lateral line analogue for predator evasion has not been examined...
Journal Articles
J Exp Biol (2014) 217 (12): 2181–2192.
Published: 15 June 2014
... Cephalopod Obliquely striated muscle Operating length range Length–force relationship Transmural gradient of strain Hollow, cylindrical muscular organs and bodies are common in animals, especially soft-bodied invertebrates. Such body plans are effective in providing mechanical support for many...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (19): 3733–3741.
Published: 1 October 2013
.... supervised all aspects of the project. COMPETING INTERESTS No competing interests declared. 30 4 2013 18 6 2013 © 2013. Published by The Company of Biologists Ltd 2013 Doryteuthis opalescens iridescence iridophore cephalopod male mimicry structural color...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (11): 2039–2045.
Published: 1 June 2013
...Lelia Cartron; Ludovic Dickel; Nadav Shashar; Anne-Sophie Darmaillacq SUMMARY Polarization sensitivity is a characteristic of the visual system of cephalopods. It has been well documented in adult cuttlefish, which use polarization sensitivity in a large range of tasks such as communication...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (21): 3752–3757.
Published: 1 November 2012
.... No chromatophores are above the ring; this is unusual for cephalopods, which typically use chromatophores to cover or spectrally modify iridescence. The fast flashes are achieved using muscles under direct neural control. The ring is hidden by contraction of muscles above the iridophores; relaxation...
Journal Articles
J Exp Biol (2012) 215 (17): 2992–3000.
Published: 1 September 2012
... short- and long-term changes of temperature and environmental conditions by multiple adjustments in cellular and mitochondrial energetics. * Author for correspondence ( [email protected] ) 11 11 2011 8 5 2012 © 2012. 2012 temperature sensitivity cephalopod...
Includes: Supplementary data