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Keywords: cephalopod
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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: 05 March 2021
... 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: 08 January 2019
... camouflage; 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (19): jeb187443.
Published: 10 October 2018
... 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: 05 October 2018
... Cephalopod Metabolism Oxygen Ammonia Gas exchange Cutaneous oxygen uptake, the acquisition of O 2 molecules from the environment into the skin, is likely to occur to some extent in nearly all animals by simple diffusion owing to an oxygen gradient from the environment into the skin tissue...
Journal Articles
J Exp Biol (2018) 221 (14): jeb176750.
Published: 20 July 2018
... and orientation in squid, resulting in the production of different vortex wake flows. Cephalopod Vorticity Fins Flapping Undulation Proper orthogonal decomposition 3D velocimetry Squid swim, unlike most other nektonic animals, using a combination of coordinated pulsed jetting and...
Journal Articles
J Exp Biol (2016) 219 (3): 392–403.
Published: 01 February 2016
...-propulsor squids produce complex 3D vortex wake flows while swimming arms-first and tail-first, as revealed by 3D jet/fin force and propulsive efficiency measurements. Cephalopod Jet propulsion Fin motion Volumetric velocimetry Wake dynamics References Alexander , R. ( 1968...
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
... © 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...
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 in...
Journal Articles
J Exp Biol (2014) 217 (12): 2181–2192.
Published: 15 June 2014
... olympian cephalopods . J. Cephalopod Biol.   1 , 33 - 55 . Olson   J. M. , Marsh   R. L. ( 1993 ). Contractile properties of the striated adductor muscle in the bay scallop Argopecten irradians at several temperatures . J. Exp. Biol.   176 , 175 - 193 . Paps   J. , Baguñà   J...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (19): 3733–3741.
Published: 01 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: 01 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: 01 November 2012
... 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 of these...
Journal Articles
J Exp Biol (2012) 215 (17): 2992–3000.
Published: 01 September 2012
... ). Overview of hypoxia around the world . J. Environ. Qual.   30 , 275 - 281 . Driedzic   W. , Sidell   B. , Stewart   J. , Johnston   I. ( 1990 ). Maximal activities of enzymes of energy metabolism in cephalopod systemic and branchial hearts . Physiol. Zool.   63 , 615 - 629...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (15): 2677–2683.
Published: 01 August 2012
.... We thank William Szelistowski, David Bennett, and the Fish and Wildlife Research Institute of Florida for assisting with specimen collection. REFERENCES Arnold J. M. ( 1967 ). Organellogenesis of the cephalopod iridophore: cytomembranes in development . J. Ultrastruct. Res. 20...
Journal Articles
J Exp Biol (2011) 214 (20): 3423–3432.
Published: 15 October 2011
... positioning is an important first step in elucidating the basic neural organization and processes that underlie the amazingly high level of behavioral plasticity in cephalopods. Although this study did not analyze new chromatophore motoneurons or their innervation pattern, the principles in this study will be...
Journal Articles
J Exp Biol (2011) 214 (19): 3173–3185.
Published: 01 October 2011
..., may function to ameliorate fitness costs associated with injury. Cephalopods can modify their behavior by learned association with noxious electric shock, but non-associative alterations of behavioral responses after tissue injury have not been studied. The aim of this study was to make the first...
Journal Articles
J Exp Biol (2011) 214 (16): 2799–2807.
Published: 15 August 2011
.... 2011 growth muscle fibre dynamics repro-somatic investment seasonal temperature regime cephalopod octopus Cephalopods typically exhibit rapid and non-asymptotic growth over short life spans, which usually range between 6 months and 2 years ( Forsythe and Van Heukelem, 1987 ; Jackson...