Results 171 to 180 of about 9,683 (214)

Function of the Gravity Receptor of Octopus vulgaris

Nature, 1970
MICROANATOMICAL1–4 and electrophysiological5–8 investigations support the hypothesis that the sensory elements of the statocysts of Crustacea and of the vertebrate vestibular endorgans are stimulated adequately by lateral displacement (shear) exerted by the statolith or statoconial membrane.
Schöne, H., Budelmann, B.
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Octopus vulgaris: An Alternative in Evolution

2018
Octopus vulgaris underwent a radical modification to cope with the benthic lifestyle. It diverged from other cephalopods in terms of body plan, anatomy, behavior, and intelligence. It independently evolved the largest and most complex nervous system and sophisticated behaviors among invertebrates in a separate evolutionary lineage.
Di Cosmo, Anna, Maselli, Valeria, Polese, Gianluca   +2 more
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Paralarval rearing of the common octopus, Octopus vulgaris (Cuvier)

Aquaculture Research, 2006
José Francisco Carrasco, Juan Carlos Arronte, Carmen Rodríguez   +2 more
exaly   +2 more sources

Contrasting activity patterns of two related octopus species, Octopus macropus and Octopus vulgaris.

Journal of Comparative Psychology, 2006
Octopus macropus and Octopus vulgaris have overlapping habitats and are exposed to similar temporal changes. Whereas the former species is described as nocturnal in the field, there are conflicting reports about the activity time of the latter one. To compare activity patterns, the authors tested both species in the laboratory.
Meisel, Daniela, Byrne, Ruth, Kuba, Michael J, Mather, Jennifer A, Ploberger, Werner, Reschenhofer, Erhard   +5 more
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The statocysts of Octopus vulgaris

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1960
Abstract The statocyst of octopods is a sack containing endolymph, lying in a larger cavity, containing perilymph and crossed by strands containing blood vessels. The arrangement shows remarkable parallels with vertebrates. The crista runs a course in three planes, each section being innervated by a separate nerve.
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Vibrio lentus associated with diseased wild octopus (Octopus vulgaris)

Journal of Invertebrate Pathology, 2003
Studies were undertaken to identify the bacteria involved in a disease of wild octopus (Octopus vulgaris). Signs of the disease include round hard lesions in the arms or head mantle, leading, in advanced cases, to the loss of skin and the exposure of the muscle beneath.
R, Farto, S P, Armada, M, Montes, J A, Guisande, M J, Pérez, T P, Nieto   +5 more
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Role of olfaction in Octopus vulgaris reproduction

General and Comparative Endocrinology, 2015
The olfactory system in any animal is the primary sensory system that responds to chemical stimuli emanating from a distant source. In aquatic animals "Odours" are molecules in solution that guide them to locate food, partners, nesting sites, and dangers to avoid.
POLESE, GIANLUCA, BERTAPELLE, CARLA, DI COSMO, ANNA   +2 more
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Cutaneous Respiration In Octopus Vulgaris

Journal of Experimental Biology, 1996
ABSTRACT The skin of Octopus vulgaris consumes considerable quantities of oxygen in vitro, averaging 4.55×10−5±1.80×10−5 ml mm−2 h−1 (mean ± S.D.), if a flow is maintained over the skin sample (N=32). The consumption is higher still in vivo, 11.36×10−5±2.73×10−5 ml mm−2 h−1 (N=8), suggesting an additional net import of oxygen through the
J. J. Madan, M. J. Wells
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Ferritin in the hepatopancreas of octopus vulgaris Lam.

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1971
Abstract 1. 1. The iron content of the hepatopancreas of Octopus vulgaris Lam. ranges between 0·20 and 0·40 mg/g of fresh tissue. 2. 2. Centrifugation of hepatopancreas homogenates at 30,000 g yielded a supernatant containing approximately 20 per cent of the total iron. 3. 3.
G, Nardi, E O, Muzii, M, Puca
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Personality dimensions in the common octopus (Octopus vulgaris)

Behaviour
Abstract Understanding the origin, universality, and maintenance of among-individual variation in behaviour is a current focus of behavioural ecology and comparative psychology. Research on animal personality emphasising the central role of the individual contributes to conservation efforts and animal welfare by tailoring guidelines and interventions ...
Valeria Mazza, Giulia Pacchiarotti, Claudia Strinati, Alessandro Carlini, Jennifer A. Mather, Claudio Carere   +5 more
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