Monthly Archives: February 2011

First alevins out at North Walls!

The first alevins have hatched today at the North Walls school! They were very difficult to spot through the Hoy peaty water! However, the clue was revealed this morning when Jamie and Oscar said they had noticed foam in the … Continue reading

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Hatching Time & ATUs…

This is a little bit technical but does make sense when you put your mind to it: it is recognised that from the stage of “eyed” ova, brown trout eggs need about 230 ATUs (Accumulated Temperature Units) to hatch into … Continue reading

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All alevins hatched on Stronsay! At last…

This is it! Eventually, the alevins have hatched! The very cold weather back in November/December has certainly been responsible for the delay but we got there in the end! The death rate has been very reasonable too with probably a … Continue reading

Posted in Alevins, Stronsay | 1 Comment