Category Archives: ova / eggs

The Sanday School release their trout!

As explained in previous posts, the Sanday mini-hatchery was, this year, subjected to the vagaries of the Orcadian winter and boy, wasn’t it an interesting one… By early-March the floating basket containing the ova became encased in 6in. of ice … Continue reading

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The Sanday mini-hatchery

Here’s a short video filmed by the pupils showing a typical routine check of our mini brown trout hatchery: water temperature reading, removal of dead ova, solar pump check, water level, etc… The mini hatchery is located outside and submitted … Continue reading

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Trout ova video (Stronsay School)

This is a short video of the mini-hatchery set-up at the Stronsay School:

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“Troot in the Shed 2018” at the Stronsay School.

I’m glad to say that our mini-hatchery project is back at the Stronsay School for the 7th year! For this session, most of the supervision and maintenance of the ova will be covered by Jamie and Johnny; they also attend … Continue reading

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Ova deliveries completed to five Orkney schools

Five Orkney schools are taking part in the “Troot in the Shed” programme this year: Stromness Primary Orphir Primary (involved this year for the first time) North Walls Primary on Hoy Sanday Junior High Stronsay Junior High Malcolm Thomson delivered … Continue reading

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Hatching alevin video

Here’s a 4mn video montage, shot at the Sanday School, of an alevin which decided to hatch under the microscope as we were checking the embryo:

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Brown trout embryo video

Yesterday, during their AFYD class, the Stronsay pupils had the                                      chance to observe a trout embryo developing inside its ovum. For this, we used a digital USB microscope linked to a laptop and set it up over the egg placed … Continue reading

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