Results 11 to 20 of about 119,851 (169)

The Eye of the Common Octopus (Octopus vulgaris) [PDF]

Frontiers in Physiology, 2020
Octopus vulgaris, well-known from temperate waters of the Mediterranean Sea and a well-cited model species among the cephalopods, has large eyes with which it scans its environment actively and which allow the organism to discriminate objects easily.
Frederike D. Hanke, Almut Kelber
doaj   +3 more sources

The Pupillary Response of the Common Octopus (Octopus vulgaris) [PDF]

Frontiers in Physiology, 2020
Cephalopods have very conspicuous eyes that are often compared to fish eyes. However, in contrast to many fish, the eyes of cephalopods possess mobile pupils. To increase the knowledge of pupillary and thus visual function in cephalopods, the dynamics of
Cecilia Soto, Almut Kelber, Frederike D. Hanke, Frederike D. Hanke   +3 more
doaj   +3 more sources

Crecimiento de pulpo común (Octopus vulgaris) en jaulas flotantes [PDF]

Scientia Marina, 2006
[EN] Two ongrowing experiments were conducted using a raft deployed for rearing mussels during summer and winter in the Ria of Vigo, Galicia, NW Spain. Two 3 m x 1.5 m x 6 m galvanized iron ongrowing cages were suspended from this platform, each equipped
Guerra, Ángel, Rocha, Francisco J., Chapela, Alberte, Chapela, Albert, Rocha, Francisco, Dawe, Earl G., González, Ángel F.   +6 more
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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.
Kuba, Michael J., Ploberger, Werner, Mather, Jennifer A., Reschenhofer, Erhard, Byrne, Ruth A., Meisel, Daniela V.   +5 more
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Parasites and dicyemid mesozoans in common octopus (Octopus vulgaris)

Veterinary Record Case Reports
LEARNING POINTS/TAKE-HOME MESSAGE ∙ The common octopus (Octopus vulgaris) is of significant economic importance as a mariculture species and is widely maintained in aquaria and laboratory facilities for both educational and scientific purposes ...
Casalini A., Brunetti B., Morini M., Mandrioli L.   +3 more
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Culture of octopus (Octopus vulgaris Cuvier, 1797)

, 2006
Ahtapot (O. vulgaris Cuvier 1797) dünya üzerinde geniş dağılım gösteren ekonomik bir kafadanbacaklı türüdür. Yetiştiricilik koşullarına kolay adapte olması, yüksek gelişim oranı, ekonomik değeri düşük doğal besinlerle beslenmesi, yüksek fekonditesi ve ...
Halil Şen
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Octopus vulgaris, the common octopus

30 pages, 11 figures, 6 tablesThe common octopus, Octopus vulgaris Cuvier, 1797, is a meroplanktonic species with planktonic hatchlings and benthic juveniles and adults, which is found throughout the northeast and eastern central Atlantic Ocean ...
Pierce, Graham J., Guerra, Ángel, Sampaio, Eduardo, Lopes, Vanessa M., Villanueva, Roger, Rosa, Rui, Amor, Michael, Gleadall, Ian G., González, Ángel F., Roura, Álvaro, Pereira, Joao   +10 more
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Reversal of a Spatial Discrimination Task in the Common Octopus (Octopus vulgaris) [PDF]

Frontiers in Behavioral Neuroscience, 2021
Reversal learning requires an animal to learn to discriminate between two stimuli but reverse its responses to these stimuli every time it has reached a learning criterion. Thus, different from pure discrimination experiments, reversal learning experiments require the animal to respond to stimuli flexibly, and the reversal learning performance can be ...
Alexander Bublitz, Guido Dehnhardt, Frederike D. Hanke   +2 more
openaire   +3 more sources

Cannibalistic behavior of octopus (Octopus vulgaris) in the wild. [PDF]

Journal of Comparative Psychology, 2014
The first description of cannibalism in wild adult Octopus vulgaris is presented from 3 observations made in the Ría de Vigo (NW Spain), which were filmed by scuba divers. These records document common traits in cannibalistic behavior: (a) it was intercohort cannibalism; (b) attacks were made by both males and females; (c) in 2 of the records, the prey
Jorge Hernández-Urcera, Manuel E. Garci, Álvaro Roura, Ángel F. González, Miguel Cabanellas-Reboredo, Beatriz Morales-Nin, Ángel Guerra   +6 more
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Accumulation of 65Zn by octopus Octopus vulgaris. [PDF]

Journal of Radiation Research, 1985
In order to aim the prevention of the radiation hazard to human beings through sea food, the accumulation and excretion of 65Zn by octopus Octopus vulgaris was examined by the radioisotope tracer experiment. The concentration factor of 65Zn for whole body of the octopus that take up the nuclide from sea water and food was estimated as 9, 900, by ...
T, Ueda, M, Nakahara, R, Nakamura, Y, Suzuki, C, Shimizu   +4 more
openaire   +2 more sources