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BBC News
Tracking the path of NI s migrating salmon
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For every hundred fish that leave the River Roe in County Londonderry, fewer than one in three will return to spawn in the years ahead.
There are a lot of different reasons for that, but there is also a big gap in the science, and it is hoped that this project, will begin to plug that gap.
Juvenile salmon, known as smolts, have a tiny transmitter inserted.
At the same time receivers have been placed at the mouth of the river and in Lough Foyle which the River Roe runs into.
River-roe
Limavady
United-kingdom
North-channel
Fife
Ireland
Lough-foyle
Ireland-general
County-londonderry
Scotland
நதி-ரோ
BBC News
Tracking the path of NI s migrating salmon
Close
For every hundred fish that leave the River Roe in County Londonderry, fewer than one in three will return to spawn in the years ahead.
There are a lot of different reasons for that, but there is also a big gap in the science, and it is hoped that this project, will begin to plug that gap.
Juvenile salmon, known as smolts, have a tiny transmitter inserted.
At the same time receivers have been placed at the mouth of the river and in Lough Foyle which the River Roe runs into.
River-roe
Limavady
United-kingdom
North-channel
Fife
Ireland
Lough-foyle
Ireland-general
County-londonderry
Scotland
நதி-ரோ