Results 21 to 30 of about 119,851 (169)

Observational Learning in Octopus vulgaris [PDF]

open access: yesScience, 1992
Untrained Octopus vulgaris (observers) were allowed to watch conditioned Octopus (demonstrators) perform the task of selecting one of two objects that were presented simultaneously and differed only in color.
FIORITO G., SCOTTO DI VETTIMO, PIETRO
openaire   +3 more sources

The morphology and adhesion mechanism of Octopus vulgaris suckers.

open access: yesPLoS ONE, 2013
The octopus sucker represents a fascinating natural system performing adhesion on different terrains and substrates. Octopuses use suckers to anchor the body to the substrate or to grasp, investigate and manipulate objects, just to mention a few of their
Francesca Tramacere   +5 more
doaj   +1 more source

Exploitation patterns of Octopus vulgaris in two Mediterranean areas

open access: yesScientia Marina, 2002
Exploitation patterns of the common octopus, Octopus vulgaris, in two Mediterranean areas were studied in three ports, two in the Thracian Sea (Greece, Eastern Mediterranean) and one in the Catalan Sea (Spain, Western Mediterranean).
Alexis Tsangridis   +2 more
doaj   +1 more source

Feeding Relationship between Octopus vulgaris (Cuvier, 1797) Early Life-Cycle Stages and Their Prey in the Western Iberian Upwelling System: Correlation of Reciprocal Lipid and Fatty Acid Contents

open access: yesFrontiers in Physiology, 2017
Under the influence of the Western Iberian upwelling system, the Iberian Atlantic coast holds important hatcheries and recruitment areas for Octopus vulgaris.
Sílvia Lourenço   +7 more
doaj   +1 more source

A contribution to the understanding of phylogenetic relationships among species of the genus Octopus (Octopodidae: Cephalopoda)

open access: yesScientia Marina, 2012
Many species of the genus Octopus are important resources for fisheries worldwide. Its approximately 200 species show a strong similarity in structural morphology and a wide diversity in skin coloration and patterning, behaviour and life strategies that
María Soledad Acosta-Jofré   +3 more
doaj   +1 more source

Identification of LINE retrotransposons and long non-coding RNAs expressed in the octopus brain

open access: yesBMC Biology, 2022
Background Transposable elements (TEs) widely contribute to the evolution of genomes allowing genomic innovations, generating germinal and somatic heterogeneity, and giving birth to long non-coding RNAs (lncRNAs).
Giuseppe Petrosino   +19 more
doaj   +1 more source

De novo transcriptome sequencing of the Octopus vulgaris hemocytes using Illumina RNA-Seq technology: response to the infection by the gastrointestinal parasite Aggregata octopiana.

open access: yesPLoS ONE, 2014
BackgroundOctopus vulgaris is a highly valuable species of great commercial interest and excellent candidate for aquaculture diversification; however, the octopus' well-being is impaired by pathogens, of which the gastrointestinal coccidian parasite ...
Sheila Castellanos-Martínez   +3 more
doaj   +1 more source

Radioisotopes demonstrate the contrasting bioaccumulation capacities of heavy metals in embryonic stages of cephalopod species. [PDF]

open access: yesPLoS ONE, 2011
Cephalopods play a key role in many marine trophic food webs and also constitute alternative fishery resources in the context of the ongoing decline in finfish stocks.
Thomas Lacoue-Labarthe   +6 more
doaj   +1 more source

In silico Identification and Expression of Protocadherin Gene Family in Octopus vulgaris

open access: yesFrontiers in Physiology, 2019
Connecting millions of neurons to create a functional neural circuit is a daunting challenge. Vertebrates developed a molecular system at the cell membrane to allow neurons to recognize each other by distinguishing self from non-self through homophilic ...
Ruth Styfhals   +6 more
doaj   +1 more source

Allopatric speciation within a cryptic species complex of Australasian octopuses. [PDF]

open access: yesPLoS ONE, 2014
Despite extensive revisions over recent decades, the taxonomy of benthic octopuses (Family Octopodidae) remains in a considerable flux. Among groups of unresolved status is a species complex of morphologically similar shallow-water octopods from ...
Michael D Amor   +3 more
doaj   +1 more source

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