After a gap year, due to problems in collecting ova during the 2016-17 season, “Troot in the Shed” is back and 2 Orkney schools will be able to hatch their own brown trout ova before releasing the alevins in the nearby lochs.
On Tuesday 30th January, Mr Pietri collected fertilised ova from the Kirbister Loch hatchery and delivered them to the Sanday School which was well prepared to the occasion!
Part of the school’s “Rich Tasks” , it was decided that we would run “Troot in the Shed 2018” in slightly different conditions from the previous sessions. Instead of hatching our ova in a shed, we are going to try and hatch them outside in a rain water-fed butt. A wooden box with a mesh bottom has been designed and assembled in class under the supervision of Craft & Design Technology teacher Ms Dixon and it’s been fixed to the butt so that the eggs are covered by 3 or 4 in. of water. A lid keeps the ova in the dark, to replicate the natural conditions, as if they were buried under the gravel of a stream, and when the days start to warm up, a solar panel air pump will provide extra oxygen to maintain a healthy water quality.
More posts to come shortly!