... muscle fibre muscle contraction fish muscle power relaxation sustained power Scyliorhinus canicula dogfish The contractile performance of fast-twitch white fibres and slow-twitch red fibres that make up the myotomal muscle of fish have been extensively studied from the point of view...

...F. Lou; N. A. Curtin; R. C. Woledge SUMMARY Maximum isometric tetanic force produced by bundles of red muscle fibres from dogfish, Scyliorhinus canicula (L.), was 142.4±10.3 kN m -2 ( N =35 fibre bundles); this was significantly less than that produced by white fibres 289.2±8.4 kN m -2 ( N =25...

...W. Gary Anderson; Y. Takei; N. Hazon SUMMARY An increase in drinking rate of two species of marine elasmobranch fish, Scyliorhinus canicula and Triakis scyllia , acclimated to 80% sea water was observed following the introduction of 100 % sea water to experimental tanks. The drinking response...

... the dogfish Scyliorhinus canicula . Heat production was also measured because the sum of work and heat is equivalent to the energy cost of the contraction (ATP used). These energy fluxes were evaluated in contractions with constant-velocity shortening either during stimulation or during relaxation. The muscle...

... fibres isolated from dogfish Scyliorhinus canicula were used to characterize the force–velocity relationship of the contractile component (CC) and the stress–strain relationship of the passive, elastic component (SEC) in series with the CC. A simple model of the time course of crossbridge activation...

... fibres. * Author for correspondence (e-mail: n.curtin@cxwms.ac.uk ). † Authors names are in alphabetical order. 31 1 1997 © The Company of Biologists Limited 1997 muscle contraction recovery energetics dogfish Scyliorhinus canicula 31 P-MRS 31 P-NMR magnetic...

...F. Lou; N. A. Curtin; R. C. Woledge ABSTRACT The energetic cost of activation was measured during an isometric tetanus of white muscle fibres from the dogfish Scyliorhinus canicula . The total heat production by the fibres was taken as a measure of the total energetic cost. This energy consists...

... level as the frequency of movement increases from 1.25 to 5.0 Hz. * Author for correspondence at address 1. 26 10 1995 ©The Company of Biologists Limited 1996 muscle contraction energetics efficiency power work heat production dogfish Scyliorhinus canicula...

... the lesser spotted dogfish ( Scyliorhinus canicula ), Atlantic stingray ( Dasyatis sabina ), turbot ( Scopthalmus maximus ), redfish ( Scianops ocellatus ), gulf toadfish ( Opsanus beta ) and oyster toadfish ( Opsanus tau ). Urea appeared to be passively distributed in both tissues (i.e...

... , N. A. and Woledge , R. C. ( 1991 ). Efficiency of energy conversion during shortening of muscle fibres from the dogfish Scyliorhinus canicula . J. exp. Biol. 158 , 343 – 353 . 10.1242/jeb.158.1.343 Curtin , N. A. and Woledge , R. C. ( 1993 ). Efficiency of energy...

... in an earlier study of efficiency during shortening at uniform velocity ( Curtin and Woledge, 1991 ). The relatively high value of efficiency can be accommodated by some models of the crossbridge cycle, but not by others. Dogfish, Scyliorhinus canicula (L.) from the holding tanks at the Citadel Hill...

... with different tuning curves; these must play a part in frequency discrimination. 27 2 1985 © 1985 by Company of Biologists 1985 Electroreceptors Scyliorhinus canícula orientation reaction frequency response Undisturbed embryos of Scyliorhinus canicula make swimming movements...