Abstract
The oxygen consumption of the rainbow trout ranging in size from 23 to 196 g was measured at 5 °C and 15 °C in fresh water and salinities of 7.5‰, 15‰, and 30‰. The standard rate of metabolism and metabolic rates at various levels of steady swimming were determined.The cost of swimming and the cost of osmoregulation in terms of oxygen consumption for a 100-g fish were calculated on the assumption that there was no cost of osmoregulation in a salinity of 7.5‰. In fresh water and in 15‰ salinity the cost of osmoregulation was 20% of total metabolism while in a salinity of 30‰ it was 27%. This 27% of the total metabolism attributed to cost of osmoregulation does not appear to be proportional to the increase in osmotic gradient in 30‰ salinity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
