Quote Originally Posted by NIMROD View Post
Nimrod was mid 80's but was cloudy this morning . Some lakes already in 90's on surface with full sun . I think it is more low oxygen than temps that hurts fishing in heat of summer . Shallow lakes have little or no thermocline and some that do have extremely low oxygen below that . The temp reading also depends on water depth and transducer depth in full sun or shade . My reading came off trolling motor transducer about 18'' deep , turn off the one on transom cause it is only inches under the surface .
The transducer on my trolling motor read just slightly warmer than the one on the Jack plate. On my Bass Cat the LSS-2 transducer is almost as deep as the Down imaging transducer on the trolling motor since it is mounted to the jack plate with a transducer shield.