Question

Topic 2.8 Respirometers Name 1 The oxygen consumption rate of the fish Oplegnathus insignis was examined in a respirometer at three different water temperatures and at four different body masses. Computer used to record oxygen Water supply Oxygen meter Respirometer Water out 400 Key 23°C --- 18°C . 13°C 300- Oxygen consumption rate Img 0, kg 'h' 200-..... 100- 600 200 400 Body mass/g (Source: adapted from E Segovia, et a.. (2012). Latin American Journal of Aquatic Research, 40(3), pages 766-7731

Answer 1

e from the respirometes (1a) Water is exited in the small tank cold which i connected to an oxygen metes. This oxygen meter senses the difference between the opygen between partial pressure of on the inhee and dates membrane og the bougen meter the computer then caladates the diesolved oxygen in the water the change in dissolved oxygen per unit lime gives one the the rate o oxygen consumption 16 Relationship between body mass & oxygen consumption & I They are inversely related ie the oxygen consen Date / reduced a they woman when for eg at 13 Oxygen consumshoni paletowa biomass Rod i 1250 while that to bumagsassos C. As per the graph oxygen consumption rate is higher as a ginen bionals temperatures bare highes. For example, for a half awon the oxygen consumption rate increases from niso to 250 to 080, 997 as temperature rises from 13°C to 1800 to 236,0 ver