Marine Scotland will be tracking sea trout in Loch Torridon in 2018 and 2019. This will involved acoustic receivers being suspended below yellow buoys in many places in the Loch. RYA Scotland, through the voluntary Crusing and General Purposes Committee, has been working with Marine Scotland to ensure that there is no danger to navigation and that access to all anchorages and harbours in the loch is not impeded.
Between March-November 2018 and 2019, a study into sea trout (Salmo trutta) movements is going to be conducted in the area of Loch Torridon, a sea loch in the NW Highlands.
Every spring some of the trout in rivers migrate to the sea where they spend the summer before returning to freshwater to spawn in the autumn and early winter. Little is known of their movements, habitat use or feeding behaviour during this time at sea however, developing this knowledge is necessary to understand the pressures that sea trout face, and the causes of the decline in numbers of this species in recent decades.
The study will involve tagging sea trout smolts as they leave rivers in the area with small acoustic transmitters. To follow the movements of sea trout, 79 acoustic receivers will be placed in Outer Loch Torridon, Loch Shieldaig and Inner Loch Torridon and the approximate locations of these receivers are indicated below.
Each location is marked by a yellow surface buoy approximately 30 cm in diameter, attached to a weighted mooring rope. An underwater buoy attached to the same line maintains the acoustic receiver in an upright position approximately 10 m below the surface.
If you spot any of these moorings we ask that you leave them undisturbed. In particular the buoys are not suitable for mooring to by boat. The buoys will be clearly marked to indicate their scientific purpose.
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