Rainbow Trout Water Temperature Tolerance

Studies have shown that if the water temperature goes up to 80 degrees these two species can survive if the water temperature does not stay at these temperatures for longer than 24 to 48 hours.

Rainbow trout water temperature tolerance. 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. Water Temperature Tolerance There are several reasons for the Rainbow Trouts ability to spread so successfully across the world. 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.

At temperatures above 70. These values are based upon a review of twenty-five papers and publications. Fresh-water-acclimated rainbow trout Salmo gairdneri 40-180 g were transferred to fresh water and sea water 26 c at 1 and 8C.

Mykiss over their entire native US range. Comm approaching a potentially critical temperature for trout survival Currie. On the other hand the adult stream rainbow trout thrives in water temperatures of.

Formance within and among Pacific salmon and rainbow trout populations seems incongruous with the criteria used by the US Environmental Protection Agency EPA to regulate water temperatures. The EPA uses a regulatory 7 day average of the daily water temperature maximum 7DADM of 18C for all juvenile O. Exposure to fresh water at 1C gave a moderate reduction in plasma osmolality and Na and Cl- concentrations.

They can survive in lakes and rivers with a temperature range between 32F to 70F0C to 21C. This allows them to survive in pretty much any waterway. They strictly avoid residing in waters above 18 C.

2013-04-11 Having revisited my published data I am staying firm with our published optimal and tolerance temperature ranges for rainbow trout ie. The rainbow trouts higher upper temperature tolerance and. There are also differences between the temperature tolerances of older Browns and Rainbows.