The stomatogastric nervous system (STNS) of adult lobsters and crabs generates a number of different rhythmic motor patterns which control different regional movements of the foregut. Since these output patterns are generated by discrete neural networks that, in the adult, are well characterized in terms of synaptic and cellular properties, this system constitutes an ideal model for exploring t...

In the European lobster Homarus gammarus, rhythmic masticatory movements of the three foregut gastric mill teeth are generated by antagonistic sets of striated muscles that are driven by a neural network in the stomatogastric ganglion. In vitro, this circuit can spontaneously generate a single (type I) motor program, unlike in vivo in which gastric mill patterns with different phase relationshi...

described as a stenohaline, non-regulating crustacean (Gilles, 1975; Péqueux, 1995). Indeed, this lobster may be considered to be an osmoconformer when living in sea water; however, when confronted with dilute sea water, the lobster hyperregulates its haemolymph osmolarity and by doing so it is able to survive salinities as low as 17 ‰ (Charmantier et al., 1984a,b). Because these animals may ex...

Lobsters were fed cadmium-rich oysters for 28 days, and the induction of cadmium metallothionein and its relation to concentrations of cadmium, copper, and zinc in the digestive gland and gills was determined. A portion of the tissues also was retained for determining the cytosolic distribution of these metals by gel filtration and ion-exchange chromatography. The digestive gland contained a ma...

Mechanisms of copper transport into purified mitochondrial suspensions prepared from the hepatopancreas of the Atlantic lobster Homarus americanus were investigated. Mitochondria were purified by combining methods of differential and Percoll-gradient centrifugation, and copper transport was studied using the copper-sensitive fluorescent dye Phen Green. Copper transport by this mitochondrial pre...

Lobster aquaculture industry in sea cage farming has used seafood as its food leading to challenges such disease risk, environmental degradation and disaster. This paper presents growth, survival, sexual maturity flesh quality of scalloped spiny lobsters from a two period culture recirculating system. In the first period, number 2655 healthy juveniles acclimated with formulated diet at average ...