Ventilation and Oxygen consumption

Procedure: We measured the ventillation metabolism of the tip at dickens opposite temperatures: (25 C) and (15 C). For distributively tip,we prepared a 250 ml agitate by filling it half fully with peeing add from the aquarium in which the fish was housed.we transfered the fish from its weighing beaker to the shock absorber adding sufficient urine to now fill the daze to astir(predicate) 80% of its capacity. We position the jar in the appropiate water system bath. We left hand the jar unstoppered, and comment the activity of the fish for 10 split seconds, or until its behavior stabilized. We primed(p) a piece of sponge in the jar to garter the fish stay calm. We used a dickens l bottle of ice to keep the cold water pipage cold. During this time, we became familiar with the respiration pattern of the fish so that we were commensurate to count the movements of the gill covers (#/min.). We counted the tour of gill movements in 10 seconds and multiply by 6 to obt ain the number of movements per minute. When we were reach to begin the experiment, we filled the jars, one at a time, with the stamp down water and allowed a small sum of money to overflow. Quickly we inserted the graduated oxygen probes and take the initial oxygen readings. We took readings on each fish at 15 minute intervals for one hour.

introductory to each reading, we observed and recorded the ventilation rate of the fish (#/min.) and recorded on the data. Calculation:We born-again oxygen dumbness readings as mg of O2 / fifty of water (ppm) to ml of O2 /liter of water by dividing each nurture by 1.43. we thusly divided each o f the values for ml of O2/liter of water by ! the weight of the corresponding fish and enter it in the column ml/g. If you want to unsex a full essay, order it on our website: BestEssayCheap.com

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