We surveyed a small burn in the Avon catchment today where a micro hydro scheme is under consideration. Three survey sites were required, all fully quantitative three run sites so it was a good opportunity for the new students to try electrofishing properly for the first time.
The upper site was located on the woodland/moorland fringe and was typical good habitat found in most small Spey burns.
In the lower two sites we found quite a lot of fry, ranging in size from 23 to 35mm. Their small size made identification difficult but considering the size and distribution we thought all were trout. Many of the fry were so small they fell through the banner net mesh; just one of the reasons why electrofishing is not normally done until July.
It was an absolutely fantastic day to be out warm, sunny and a nice breeze to keep things fresh. Great for electrofishing but not so good for fishing!