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Keywords: Octopus
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Journal Articles
J Exp Biol (2022) 225 (6): jeb243163.
Published: 24 March 2022
... of stiffness . Curr. Biol. 16 , R283 - R285 . 10.1016/j.cub.2006.03.045 Huffard , C. L. , Boneka , F. and Full , R. J. ( 2005 ). Underwater bipedal locomotion by octopuses in disguise . Science 307 , 1927 . 10.1126/science.1109616 Kang , R. , Guglielmino , E...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (7): 1069–1076.
Published: 1 April 2015
... reaching movements and 382 fetching movements were observed. Fig. 1. Picture sequence of typical straight reaching and fetching movements of octopus arms in a constrained situation. Octopuses are behind a Perspex wall and reach or fetch through a hole with a single arm (indicated in red...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (9): 1430–1436.
Published: 1 May 2014
... partial pressure ( P O 2 ) and pH gradients to test the setup. Oxygen binding parameters derived from measurements in only 15 μl of haemolymph from the cephalopod Octopus vulgaris showed low instrumental error (0.93%) and good agreement with published data. Broad-range spectra, each resolving 2048 data...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (22): 3727–3731.
Published: 15 November 2011
.... , Dario P. ( 2009 ). Design of a biomimetic robotic octopus arm . Bioinspir. Biomim. 4 , 015006 . Mather J. A. ( 1998 ). How do octopuses use their arms? J. Comp. Psychol. 112 , 306 - 316 . Messenger J. B. , Nixon M. , Ryan K. P. ( 1985 ). Magnesium...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2011) 214 (16): 2799–2807.
Published: 15 August 2011
... days, prior to transfer to experimental tanks. Octopuses were exposed to ambient temperatures over this period (ranging between 14 and 17.9°C; mean: 16.1±0.07°C) and fed ad libitum on live crabs ( Petrolisthes elongatus ). To examine juvenile growth prior to the manipulative experiment, a random sub...
Journal Articles
J Exp Biol (2011) 214 (13): 2164–2174.
Published: 1 July 2011
... or the surrounding lipid environment, or synergistic changes to both. To assess the contribution of the enzyme itself, we cloned orthologous Na + /K + -ATPase α-subunits from an Antarctic ( Pareledone sp.; –1.8°C) and a temperate octopus ( Octopus bimaculatus ; ∼18°C), and compared their turnover rates...
Includes: Supplementary data
Journal Articles
J Exp Biol (2005) 208 (2): 261–265.
Published: 15 January 2005
.... A. and Gwyther, J. ( 1988 ). Visual discrimination of distance by octopuses. J. Exp. Biol. 140 , 345 -353. Nilsson, S. ( 1980 ). Symapathetic nervous control of the iris sphincter of the Atlantic cod, Gadus morhua. J. Comp. Physiol. 138A , 149 -155. Packard, A. ( 1972 ). Cephalopods and fish...
Journal Articles
J Exp Biol (1990) 152 (1): 471–484.
Published: 1 September 1990
... octopuses (Octopus vulgaris). J. exp. Biol. 131, 175-187. WELLS, M. J. AND SMITH, P. J. S. (1987). The performance of the octopus circulatory system: A triumph of engineering over design. Experientia 43, 487-499. Octopus elasticity haemodynamics Windkessel © 1990 by Company of Biologists 1990...
Journal Articles
J Exp Biol (1988) 140 (1): 345–353.
Published: 1 November 1988
...W. R. A. MUNTZ; J. GWYTHER If two stimuli are presented to an octopus simultaneously, but at different distances from the animal, the nearer of the two is usually attacked. This preference was used to test the ability of octopuses to discriminate distance. White discs, 37 mm in diameter, were used...
Journal Articles
J Exp Biol (1988) 134 (1): 119–129.
Published: 1 January 1988
... were done for two purposes: (1) to develop behavioural methods suitable for studying vision in Australian octopuses; and (2) to measure visual acuity in Octopus as an initial contribution to the study of basic visual mechanisms in these animals. The behavioural methods used initially followed closely...
Journal Articles
J Exp Biol (1987) 131 (1): 137–157.
Published: 1 September 1987
...D. F. HOULIHAN; C. AGNISOLA; N. M. HAMILTON; I. TRARA GENOINO A technique is described which allowed the measurement of the oxygen consumption of the isolated heart of Octopus vulgaris . Contraction of the heart resulted in an aortic output and a flow through the heart muscle into coronary veins...
Journal Articles
J Exp Biol (1987) 131 (1): 175–187.
Published: 1 September 1987
... and the basic body plan of a mollusc are discussed, and the situation in squid is compared with that in octopuses. 20 5 1987 © 1987 by Company of Biologists 1987 Octopus exercise blood flow blood pressure J. exp. Biol. 131, 175-187 (1987) 175 Printed in Great Britain © The Company...
Journal Articles
J Exp Biol (1987) 130 (1): 87–106.
Published: 1 July 1987
..., according to Saito & VanderWerf (1975): Co=(2E'h/3pr) i , (11) where E' is the dynamic elastic (storage) modulus of the wall in the circumferential direction, and h is the vessel wall thickness. RESULTS Aortic blood pressure and flow in the resting octopus Systemic heart rates in resting octopuses at 8-10°C...
Journal Articles
J Exp Biol (1985) 119 (1): 251–264.
Published: 1 November 1985
.... Budelmann, M. Sachse&M. Staudigl, in preparation). MATERIALS AND METHODS Twenty-five octopuses, Octopus vulgaris, within the size range 80-300 g, were used in these experiments. The animals were obtained from the Gulf of Naples and main- tained in a closed seawater system in Regensburg until used...
Journal Articles
J Exp Biol (1985) 117 (1): 415–431.
Published: 1 July 1985
... in the chromatophore muscles of L. opalescens. Local responses might also occur in the mantle muscle of both octopuses and squids (Wilson, 1960). In the chromatophores Octopus chromatophores 429 of E. cirrhosa, the contraction of the muscle fibres is clearly not an 'all or none' event. The observations...
Journal Articles
J Exp Biol (1983) 104 (1): 59–71.
Published: 1 May 1983
... of extracts from neurosecretory cells in the anterior vena cava and pharyngo-opthalmic vein upon the hearts of intact free-moving octopuses. J. exp. Biol. 84, 319-334. WELLS, M. J., O'DOR, R. K., MANGOLD, K. & WELLS, J. (1983a). Diurnal changes in activity and metabolic rate in Octopus vulgaris. Mar. Behav...