We tested color perception based upon a robust behavioral response in which cuttlefish (Sepia officinalis) respond to visual stimuli (a black and white checkerboard) with a quantifiable, neurally controlled motor response (a body pattern). In the first experiment, we created 16 checkerboard substrates in which 16 grey shades (from white to black) were paired with one green shade (matched to the...

The Centre for Information Technology Research (CITRUS) launched in 2002 had the goal of encouraging collaborative research that is industry and community linked, at regional and national levels within the NACCQ sector. The research programme into Software Development Impact Statements being conducted by the Software Engineering Practice Improvement Alliance, (SoDIS

The cuttlefish Sepia officinalis mate and spawn in the intertidal zone where eggs are exposed during low tide to osmotic stress. Embryonic outer yolk sac is a putative site for osmoregulation of young S. officinalis embryos. By using electrophysiological recordings and immunostaining we showed, (i) that the chorion is only a passive barrier for ions, since large molecules could not pass through...

1. Optic glands transplanted from one Octopus vulgaris into another cause enlargement of the gonads and ducts of the recipient. 2. Enlargement occurs whether or not the gland was secreting when implanted and regardless of the sex of the donor or recipient. 3. Glands derived from Eledone moschata or Octopus macropus implanted into O. vulgaris are as effective as glands derived from O. vulgaris. ...

Sepia ink, a black suspension of melanin granules, is multifunctional marine bioactive material. The present study aims to evaluate the ameliorative effect ink extract (IE) cuttlefish (Sepia officinalis) during high dosage administration FA in rats. Kidney injury induced by single oral dose (250 mg /kg). Eighteen male Wistar albino rats were control, group, and FA+ IE group (250mg/kg). showed s...

The objective of this study was the development of hatching protocols in controlled conditions to obtain juveniles, in order to restock and increase the resource of Sepia officinalis. The study was divided into the following phases: development and application of artificial surfaces at specific sites of the Molise coast in Italy; induction of eggs hatching and juveniles maintenance under contro...

C. Bock, S. Schmidt, F. Melzner, H-O. Poertner Ecopysiology and Ecotoxicology, Alfred-Wegener-Institute, Bremerhaven, Bremen, Germany Introduction Marine invertebrates are frequently used as model organisms in neurological research. Especially experiments on isolated neurons of snails or the giant axon of cuttlefish contributed to a basic and fundamental understanding in neuronal signal transdu...

Physiological studies have shown that the epidermal head and arm lines in cephalopods are a mechanoreceptive system that is similar to the fish and amphibian lateral lines (Budelmann BU, Bleckmann H. 1988. A lateral line analogue in cephalopods: Water waves generate microphonic potentials in the epidermal head lines of Sepia officinalis and Lolliguncula brevis. J. Comp. Physiol. A 164:1–5.); ho...

This research was aimed at characterizing the daily rhythms of locomotor activity of cuttlefish Sepia officinalis (Linnaeus, 1758), a promising aquaculture species, in a captive environment. Cuttlefish were distributed within two tanks equipped with infrared photocells, allowing the monitoring of locomotor activity continuously from August to February. Results showed a preference of cuttlefish ...