Cephalopods are sensitive to the linear polarization characteristics of light. To examine if this polarization sensitivity plays a role in the predatory behavior of cuttlefish, we examined the preference of Sepia officinalis when presented with fish whose polarization reflection was greatly reduced versus fish whose polarization reflection was not affected. Cuttlefish preyed preferably on fish ...

Porous three-dimensional hydroxyapatite scaffolds were synthesised from aragonitic cuttlefish bones via a microwave based technique. Due to its close similarity to the mineral phase found in the natural human bone matrix, synthetically produced hydroxyapatite is considered a viable apatite substitute for natural bone in a number of biomedical applications. The X-ray diffract ion data confirms t...

Flounders and cuttlefish have an impressive ability to change colouration, for camouflage and, in the case of cuttlefish, for communication. We pursue the hypothesis that these diverse patterns are created by combining a small number of distinct pattern modules. Independent component analysis (ICA) is a powerful tool for identifying independent sources of variation in linear mixtures of signals...

Catch Per Unit Area (CPUA) estimation and distribution pattern of pharaoh cuttlefish from North Coast Gulf Oman

Antidepressants in coastal waters may affect ontogeny of predatory behaviour cuttlefish, which may, as a result, growth newly-hatched cuttlefish. We investigated the effects two most prescribed antidepressants, fluoxetine (FLX) and venlafaxine (VEN) environmentally realistic concentrations on hatchlings Sepia officinalis. Newly-hatched cuttlefish were exposed from 1 h (i.e., day 1) to 5 days af...

This paper will discuss the implementation of Cuttlefish, a library for building configurable, fault tolerant, elastic, distributed neural networks. Cuttlefish is built on top of the Distributed TensorFlow library. It uses Docker containers to represent units or neurons in the a neural network. More specifically each container (neuron) will run as a service that can communicate with other neuro...

pharaoh cuttlefish (sepia pharaonis) is commercially important and native cephalopods in the persian gulf and oman sea. in 2013, a total of 150 eggs of pharaoh cuttlefish were collected from 20 m depth in about 6 miles south of lengeh port and transferred to the laboratory of mollusks research station in bandar-e lengeh. eggs were incubated in temperature of 27.5±0.5 0c (mean ± sd) and salinity...

Cephalopods are known for their ability to change camouflage body patterns in response to changes in the visual background. Recent research has used artificial substrates such as checkerboards to investigate some specific visual cues that elicit the various camouflaged patterns in cuttlefish. In this study, we took information from experiments on artificial substrates and assembled a natural ro...