Results

26 - 50 of 154
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Isolated rat diaphragm muscle was stimulated repetitively to induce fatigue, and the work done during each contraction was measured. Work per cycle was calculated by measuring force as the activated muscle was subjected to sinusoidal length changes (from 97 to 103% of L(0), where L(0) is rest length...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
We present the first measurements of routine oxygen uptake (VO2) of the bloater (Coregonus hoyi), including the effects of temperature and hydrostatic pressure. For temperature experiments, ten 24 hour trials were conducted each at 10.5°C and 7°C, using flow-through respirometry. Average routine V...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
In mammals, sprint-type exercise protocols induce muscular adaptation different from that caused by endurance training. Although there are many published studies on endurance training in fish, few have examined sprint (anaerobic) training. This study is an examination of whether sprint-training chan...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
1. 1.|Decreasing temperature stimuli produced responses and threshold similar to those produced by increasing temperature stimuli in a previous study with skipjack tuna, Katsuwonus pelamis. 2. 2.|Restrained skipjack tuna signaled by deceleration of heart rate that they could perceive abrupt temperat...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Muscle temperature was measured by telemetry in giant Atlantic bluefin tuna whilst the tuna were free-swimming in large pounds. Muscle temperature tended to remain steady at about 24 degreesC; water temperature ranged from 9 to 17 degreesC. Muscle temperature was much less Variable than stomach temp...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Critical swim speed (U(crit)) measurements show that trout (Oncorhynchus mykiss) with an intact spleen perform aerobic exercise better than those without (control: U(crit) = 2.19 body lengths/s; splenectomized: U(crit) = 1.84 body lengths/s). Their better performance is correlated with higher blood ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Increased sodium pump activity is a major component of enhanced tissue thermogenesis in skeletal muscle, liver, and kidney of cold-acclimated rats. The sodium pump may play a major role in the thermoregulatory heat production during cold adaptation in mammals.
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Coefficients of temperature change in relation to body size are given for three species of fish native in Lake Huron, subjected to a sudden drop in ambient temperature of about 5C. These observations together with published data provide cooling coefficients for fish and aquatic reptiles over a w...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
We analyzed buoyancy characteristics ( buoyancy range, gas bladder volume, and lipid content) of adult bloater, Coregonus hoyi Gill, in the Laurentian Great Lakes. Buoyancy was measured directly in individual bloater and compared with the hydrostatic pressures at the depths of capture. The results o...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Using implanted acoustical tags, the body temperature and external water temperature of rainbow trout and Arctic char were monitored in commercial fish pens moored in an environment which was extremely stratified with respect to temperature and salinity. Both species regulated body temperature betwe...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
In this study, we injected morphine sulfate IP into rainbow trout and measured the concentration of morphine and all potential metabolites in plasma using LC-MS/MS at a series of times after the injection. The pharmacokinetics of morphine were similar to those previously reported for seawater-acclim...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
In order to elucidate the mechanisms of neurogenic control of bone development and growth, the effects of traumatic and electric stimulation on the development, size, and shape of antler bone tissue were investigated. Unilateral growth of antler in a female deer was initiated after traumatic stimula...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The major fraction of elevated oxygen uptake of liver and skeletal muscle tissue slices that occurs during cold adaptation in mice is ouabain sensitive.
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
1.
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
We examined the thermal biology of free-ranging terrestrial eastern foxsnakes (Elaphe gloydi Conant, 1940) that were voluntarily swimming in cold water during spring, in Georgian Bay, Ontario, Canada. Using temperature-sensitive radiotelemetry, we recorded body temperatures of foxsnakes during 12 co...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
There is considerable pressure for Animal Care and Ethics Councils to recommend using analgesics in experiments that involve fish. Although we do have some data regarding this issue, I argue that we do not know enough to recommend any being used. For example, the doses of morphine used in fish exper...