... ) 13 12 2005 © The Company of Biologists Limited 2006 2006 trout heart sodium current action potential upstroke impulse conduction Oncorhynchus mykiss . The generation of action potentials (AP) and synchronized spread of excitation are essential features for the coordinated...

... and fast myotomal muscles were measured in the rainbow trout Oncorhynchus mykiss . These two muscle fibre types generated distinct low and high myoelectric frequency bands. The cat paw-shake is an activity that recruits mainly fast muscle. This study showed that the myoelectric signal from the medial...

...Collins Kamunde; Martin Grosell; Dave Higgs; Chris M. Wood SUMMARY Juvenile rainbow trout Oncorhynchus mykiss were exposed to diets with low (12.6 nmol g –1 ), normal (50.4 nmol g –1 ) or elevated (4437.5 nmol g –1 ) Cu concentrations in combination with either low (5.8 nmol l –1 ) or normal (48.5...

.... The effects of amino acids upon intestinal zinc uptake in freshwater rainbow trout ( Oncorhynchus mykiss ) were studied using an in vivo perfusion technique. The presence of histidine, cysteine and taurine had distinct modifying actions upon quantitative and qualitative zinc absorption, compared to perfusion...

...Svante Winberg; Øyvind Øverli; Olivier Lepage SUMMARY Juvenile rainbow trout Oncorhynchus mykiss were isolated in individual compartments in observation aquaria and allowed to acclimate for 1 week, during which they were fed commercial trout feed. Thereafter, the fish were tested for aggressive...

...A. Shingles; D. J. McKenzie; E. W. Taylor; A. Moretti; P. J. Butler; S. Ceradini SUMMARY Adult trout Oncorhynchus mykiss fitted with a dorsal aortic catheter were exposed to 288±15μmoll −1 (mean ± s.e.m .) total ammonia for 24h in water at a pH of 8.39±0.02, while swimming at a speed equivalent...

... ). *Author for correspondence (e-mail: chawrysh@uvic.ca ) 19 4 2001 © The Company of Biologists Limited 2001 2001 CCD-based microspectrophotometer photoreceptor spectral absorption rainbow trout Oncorhynchus mykiss . Microspectrophotometry (MSP) is a well-established...

...S. Panserat; E. Plagnes-Juan; S. Kaushik SUMMARY Rainbow trout ( Oncorhynchus mykiss ) are known to use dietary carbohydrates poorly. One of the hypotheses to explain the poor utilisation of dietary glucose by these fish is a dysfunction in nutritional regulation of hepatic glucose metabolism...

... rerio , which is often used as the model organism in fishes. myosin heavy chain somitogenesis muscle differentiation teleost trout Oncorhynchus mykiss . In contrast to the muscle of terrestrial vertebrates, in which the different muscle fibre types form a mosaic within the same...

...., Cabrera, V. M., Wright, P. A., Felskie, A. K. and Anderson, P. M. ( 1997 ). Expression of carbamoyl-phosphate synthetase III mRNA during the early stages of development and in muscle of adult rainbow trout ( Oncorhynchus mykiss ). J. Biol. Chem . 272 , 6270 –6277. Levi, G., Morisi, A. C...

...E. Rahaman-Noronha; M. J. O’Donnell; C. M. Pilley; P. A. Wright ABSTRACT This study examined ammonia excretion by embryos of the rainbow trout ( Oncorhynchus mykiss ). The distribution of ammonia in relation to the H + distribution and electrical potential was determined. The influence of the pH...

... limit. This study measured routine and maximum in situ cardiac performance in rainbow trout ( Oncorhynchus mykiss ) following acclimation to 15, 18 and 22 °C, under conditions of tonic (30 nmol l -1 ), intermediate (60 nmol l -1 ) and maximal (200 nmol l -1 ) adrenergic stimulation. Heart rate increased...

... rainbow trout olfactory response amino acids sea water Oncorhynchus mykiss . Salmonid fishes are able to survive in fresh water and sea water. They hatch in fresh water, migrate to their feeding grounds in the ocean and later return to their natal river for spawning after a marine existence...

..., presumably because of inhibition of Na + /K + -ATPase on the basolateral border of the gill epithelium. 5 7 1991 © 1991 by Company of Biologists 1991 acidification carbon dioxide ammonia H + -ATPase SITS amiloride vanadate acetazolamide gill rainbow trout Oncorhynchus mykiss...