Wed 30 Jul 2008
Was given and extract from an article in issue 56 of the Target Taupo magazine by DOC from Didymo Dave. It offers a good reason as to the small trout size of last year and early this year though it seems to me that things on the improve. Have already had as many over 4 pounds as the whole of last year!
“However the phytoplankton concentration was unusually low in winter 2005. This low concentration was attributed to the incomplete mixing of the lake which usually occurs over winter when the surface waters cool. This reduces the density difference between the warmer surface waters and cooler bottom waters so that the agitation from winter storms with their high winds can mix the two layers. Mr Gibbs estimated that as a result of incomplete mixing as much as 50% of the nutrients (nitrate and phosphorus) remained in the bottom waters rather than being circulated up into the surface waters. The surface water is where nutrients can be used by phytoplankton (plants) and transferred through the food chanin to eventually reach smelt and trout. As a consequence the concentration of nutrients was lower in autumn 2006″
Cloud/Wind: Strong gusts
River Conditions: Clear to green
Recommended Flies: Size 14 Salmon Egg and Flame glow bugs.