Results 81 to 90 of about 9,574 (221)
Conditional discrimination in Octopus vulgaris [PDF]
Journal of Ethology, 2014 AbstractConditional discrimination in the octopus (Octopus vulgaris) was studied using successive discrimination training. The experimental animals were divided into two groups, and a barrel-shaped white object (stimulus) was presented to each group.
Tokuda, Koji +2 more
openaire +1 more source
Animal medical systems from Apis to apes: history, recent advances and future perspectives
Biological Reviews, Volume 100, Issue 6, Page 2608-2624, December 2025.ABSTRACTAnimal medical systems encompass a wide range of behaviours aimed at maintaining or improving health. It has become clear that these behaviours are not limited to animals treating themselves (self‐medication) but also include the treatment of group members, resulting in the adoption of the more inclusive term “animal medication”. Behaviour with
Michelina Pusceddu +5 more
wiley +1 more source
Dwellers in dens on sandy bottoms: Ecological and behavioural traits of Octopus vulgaris
Scientia Marina, 2014 Four visual censuses targeting Octopus vulgaris living in dens on sandy bottoms were carried out from June to October 2013 in the National Park of the Atlantic Galician Islands (NW Spain). Censuses were undertaken by scuba diving between 5 and 21 m depth
Ángel Guerra +8 more
doaj +1 more source
Experimental harvesting of juvenile common octopus Octopus vulgaris, for commercial ongrowing in the Azores [PDF]
, 2010 Octopus aquaculture is currently restricted to ongrowing of sub-adult to commercial size because culture of paralarvae remains a bottleneck. In most countries, commercial ongrowing rely upon existing pot fisheries for octopuses for obtaining their ...
Isidro, Eduardo, Pham, Christopher K.
core
Cephalopod Brains: An Overview of Current Knowledge to Facilitate Comparison With Vertebrates. [PDF]
, 2018 Cephalopod and vertebrate neural-systems are often highlighted as a traditional example of convergent evolution. Their large brains, relative to body size, and complexity of sensory-motor systems and behavioral repertoires offer opportunities for ...
Giovanna Ponte +4 more
core +2 more sources
CHARACTERIZATION OF PROTEOLYTIC ACTIVITY IN OCTOPUS (Octopus vulgaris) ARM MUSCLE
Journal of Food Biochemistry, 1999 A new proteolytic activity assay was devised to avoid the interference of paramyosin which causes gelling during the enzymatic assay. Extremely high autolytic activity was observed in octopus arm muscle, which was 40-500 fold higher than those of various other fish species.
Hurtado, José L. +3 more
openaire +2 more sources
Fisheries Management and Ecology, Volume 32, Issue 6, Page 405-417, December 2025.ABSTRACT Trammel nets are used with extended soaking times to increase the catching efficiency for demersal fish in commercial fishing. Long soaking time causes deterioration or damage to species caught in the first days. Effects of soaking time were investigated with 36‐mm, 42‐mm, and 46‐mm mesh sizes soaked over 1, 3, 5, and 7 days on target, non ...
Yusuf Şen, Uğur Özekinci
wiley +1 more source
Genetic analysis of the Octopus vulgaris population on the coast of South Africa [PDF]
, 2004 This study on Octopus vulgaris focused on the COIII gene region of mitochondrial DNA. Sequences from 21 samples from the Eastern Cape, and 14 samples from the Western Cape, were compared to determine whether different populations exist along the South ...
Jiwaji, Meesbah +2 more
core +1 more source
The secret in their eyes: A review of the recessus orbitalis, a unique structure of flatfishes
Journal of Anatomy, Volume 247, Issue 6, Page 1131-1144, December 2025.The recessus orbitalis is an organ responsible for projecting the eyeball above the level of the head and is uniquely present in flatfishes. The organ consists of two interconnected chambers filled with interstitial fluid and is internally coated with smooth muscle fibers that act as a double‐pump system.
Paulo Presti +2 more
wiley +1 more source
The role of DNA methylation on Octopus vulgaris development and their perspectives
Frontiers in Physiology, 2014 DNA methylation is a common regulator of gene expression and development in mammalian and other vertebrate genomes. DNA methylation has been studied so far in a few bivalve mollusk species, finding a wide spectrum of levels.
Eva eDíaz-Freije +3 more
doaj +1 more source