Water Temperature For Rainbow Trout

Trout need water that is free of harmful solid or gaseous waste.

Water temperature for rainbow trout. They strictly avoid residing in waters above 18 C. 2019-08-26 They grow rapidly a little over one inch per month at the ideal water temperature of 59F and reach market size of 1 to 2 pounds from 10 to 15 months of age. These figures illustrate the optimal sub-optimal stressful and lethal temperature ranges for Brown Trout Salmo trutta and Rainbow Trout Oncorhynchus mykiss.

2015-03-01 Aerobic scope was maximized at 15803C Topt while the upper pejus temperature Tpej set at 90 of maximum aerobic scope was 19903C. Rainbow trout can tolerate a relatively broad range of water temperatures but prefer. Although aerobic scope decreased at temperatures above Topt the value at 25C remained well over 40 of the maximum.

Clear water enables efficient feeding 6 10. For example rainbow trout are said to be able to survive in temperatures up to and exceeding 77F 24C but stop growing at 73F 23. Extensive research and observations indicate that adult lake rainbow trout prefer a temperature between 7-18 C 446 F to 644 F.

Preferred water temperature 52. 2019-03-28 Brown trout originally imported from Europe in the late 1800s and rainbows brought in from the Pacific Northwest are generally comfortable when the water is 44 to 75 degrees. 68F Temperature at which anglers should consider not fishing for trout.

67F Temperature at which trout significantly decrease feeding. When the water temperature hits 68 degrees both species will begin to get stressed. The optimal feeding and movement water temperatures for them is 44 to 67 degrees.

It stands to reason that a fish one which is already oxygen stressed while positioned carefully in current that minimizes its energy use will be dramatically more stressed after being hooked and attempting to fight its way to freedom. The Food and Agriculture Authority FAO publishes optimal temperature ranges of 9 21C and a. High concentrations of dissolved oxygen enable smooth respiration 6 11.