Difference between revisions of "Kaufmann 1990 JEB"
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{{Publication | {{Publication | ||
|title=Kaufmann R (1990) Respiratory cost of swimming in larval and juvenile cyprinids. J. Exp. Biol. 150: 343-366. | |title=Kaufmann R (1990) Respiratory cost of swimming in larval and juvenile cyprinids. J. Exp. Biol. 150:343-66. | ||
|authors=Kaufmann R | |info=[http://jeb.biologists.org/cgi/reprint/150/1/343 J. Exp. Biol. 150: 343-366.] | ||
|authors=Kaufmann R | |||
|year=1990 | |year=1990 | ||
|journal=J | |journal=J Exp Biol | ||
|abstract=The relationship between swimming speed and respiration rate for larvae and | |abstract=The relationship between swimming speed and respiration rate for larvae and juveniles (1.5-600 mg fresh mass) of two cyprinid species, ''Chalcalburnus chalcoides'' and ''Rutilus rutilus'', was measured in a flow-tunnel at 20°C. | ||
juveniles (1.5-600 mg fresh mass) of two cyprinid species, Chalcalburnus chalcoides and Rutilus rutilus, was measured in a flow-tunnel at 20°C. | |||
1. A special tunnel respirometer with small volume and fast response had to be | 1. A special tunnel respirometer with small volume and fast response had to be constructed to cope with the methodological difficulties encountered with the larvae. | ||
constructed to cope with the methodological difficulties encountered with the | |||
larvae. | 2. The oxygen uptake increased quadratically with swimming speed if the oxygen debt incurred at the highest speeds was included in the calculations. The maximum speeds sustainable over 2min were 6-8 lengths s<sup>- 1</sup> ; the critical speed marking the onset of anaerobic processes was only 10-15 % lower. Energetics and performance were similar for both species. The cost of transport was much higher for larvae and juveniles than for adult fish and decreased rapidly during growth. | ||
2. The oxygen uptake increased quadratically with swimming speed if the | |||
oxygen debt incurred at the highest speeds was included in the calculations. The | 3. Standard and routine metabolic rates scaled with an allometry of M<sup>-0.23</sup>, active rates with M<sup>-0.15</sup>, where M is body mass in grams. In the smallest larvae, | ||
maximum speeds sustainable over 2min were 6-8 lengths s - 1 ; the critical speed | |||
marking the onset of anaerobic processes was only 10-15 % lower. Energetics and | |||
performance were similar for both species. The cost of transport was much higher | |||
for larvae and juveniles than for adult fish and decreased rapidly during growth. | |||
3. Standard and routine metabolic rates scaled with an allometry of M | |||
active rates with M | |||
however, the standard rates were nearly independent of body mass. Their active | however, the standard rates were nearly independent of body mass. Their active | ||
rates of 80 | rates of 80 µmolO<sub>2</sub>.h<sup>-1</sup>g<sup>-1</sup> fresh mass were twice as high as those of adults. | ||
4. The scope for activity was high on an absolute scale, but not when expressed | |||
as factorial scope, since the standard rate was also high. For the same reason, | 4. The scope for activity was high on an absolute scale, but not when expressed as factorial scope, since the standard rate was also high. For the same reason, routine activity accounted for less than 25 % of the energy budget, despite the high cost of transport. | ||
routine activity accounted for less than 25 % of the energy budget, despite the high cost of transport. | |||
5. The data are discussed with respect to the changing swimming pattern during | 5. The data are discussed with respect to the changing swimming pattern during ontogeny, the shift from cutaneous to branchial respiration and the metabolic processes involved. | ||
ontogeny, the shift from cutaneous to branchial respiration and the metabolic | |||
processes involved. | |||
|keywords=Twin-Flow | |keywords=Twin-Flow | ||
}} | }} | ||
{{Labeling | {{Labeling | ||
|organism= | |organism=Fishes | ||
|preparations=Intact | |preparations=Intact organism | ||
| | |additional=Twin-Flow | ||
}} | }} | ||
Latest revision as of 09:01, 9 November 2016
| Kaufmann R (1990) Respiratory cost of swimming in larval and juvenile cyprinids. J. Exp. Biol. 150:343-66. |
Kaufmann R (1990) J Exp Biol
Abstract: The relationship between swimming speed and respiration rate for larvae and juveniles (1.5-600 mg fresh mass) of two cyprinid species, Chalcalburnus chalcoides and Rutilus rutilus, was measured in a flow-tunnel at 20°C.
1. A special tunnel respirometer with small volume and fast response had to be constructed to cope with the methodological difficulties encountered with the larvae.
2. The oxygen uptake increased quadratically with swimming speed if the oxygen debt incurred at the highest speeds was included in the calculations. The maximum speeds sustainable over 2min were 6-8 lengths s- 1 ; the critical speed marking the onset of anaerobic processes was only 10-15 % lower. Energetics and performance were similar for both species. The cost of transport was much higher for larvae and juveniles than for adult fish and decreased rapidly during growth.
3. Standard and routine metabolic rates scaled with an allometry of M-0.23, active rates with M-0.15, where M is body mass in grams. In the smallest larvae, however, the standard rates were nearly independent of body mass. Their active rates of 80 µmolO2.h-1g-1 fresh mass were twice as high as those of adults.
4. The scope for activity was high on an absolute scale, but not when expressed as factorial scope, since the standard rate was also high. For the same reason, routine activity accounted for less than 25 % of the energy budget, despite the high cost of transport.
5. The data are discussed with respect to the changing swimming pattern during ontogeny, the shift from cutaneous to branchial respiration and the metabolic processes involved. • Keywords: Twin-Flow
Labels:
Organism: Fishes
Preparation: Intact organism
Twin-Flow
