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Freshwater fish

'Freshwater fish' are present in all types of water bodies, ranging from small dystrophic pools in our upland areas and moors, to large rivers and lochs. In order to survive in these disparate habitats, members of the Scottish freshwater fish community have evolved a remarkable range of life-history strategies. For example, some of these fish elect to spend their entire life in freshwater, whilst others migrate between freshwater habitats and the sea. Some of these species have evolved in ways which Darwin himself would be astounded.

A male Atlantic Salmon (Salmo salar) leaping up a waterfall, River Almond. ©Lorne Gill/SNH. For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 444177 or www.snh.gov.uk/copyright/

About freshwater fish

An overview of freshwater fish in Scotland and why they're important.

Atlantic Salmon leaping a waterfall on the River Almond. ©Lorne Gill/SNH. For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 444177 or www.snh.gov.uk/copyright/

Salmon

Atlantic salmon support a fishery of world renown, but they are also incredibly diverse.

Trout. © Colin Bean/SNH. For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 444177 or www.snh.gov.uk/copyright/

Trout

Trout are a species well known by everyone, but their ecology is more complex that you might imagine.

Vendace. ©Lorne Gill/SNH.  For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 444177 or www.snh.gov.uk/copyright/

Vendace / powan

Vendace and powan are two of Scotland's rarest species. Learn more about them here.

Sparling ©Colin Bean/SNH.  For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 444177 or www.snh.gov.uk/copyright/

Sparling

This little known species once supported a number of fisheries in Scotland. Find out where they live.

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Sticklebacks

Learn about sticklebacks without spines and others which have more than you might expect.

Lamprey.  ©Colin Bean/SNH.  For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 444177 or www.snh.gov.uk/copyright/

Lamprey

Lamprey are both ancient and spectacular. These fish use suckers and rasping teeth to feed on other fish.

Arctic charr Loch Shin. ©Colin Bean/SNH. For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 444177 or www.snh.gov.uk/copyright/

Arctic Charr

Possibly the first freshwater fish to colonise Scotland after the last ice-age. Find out about its 'hidden biodiversity'.

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European eel

A trip from the Sargasso Sea to Scotland and back again - find out more about this incredible journey.

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Shad

Learn about the Twaite and Allis shads. Find out where they live and how they use freshwater environments.

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Other freshwater fish

Other species can be of interest - even if they aren't conservation priorities



Last updated on Monday 8th June 2015 at 10:00 AM. Click here to comment on this page