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The Wild Trout Trust are often asked for advice relating to the introduction of trout (stocking). We have produced a position statement (and summary document) to help people make an informed decision about stocking and the protection of wild brown trout.
The document was prepared by Dr. Paul Gaskell with assistance from other WTT staff and our volunteer Advisory Panel, and published in May 2012.
In this short video, Paul Gaskell outlines some of the risks and dangers associated with stocking rivers with fertile fish.
'Improved Trout Stock management' includes suggestions about how to improve your wild trout fishing opportunities:
The document above contains an extensive list of scientific references. Many of these are available if searched for using an internet search engine or British Library Direct ; the summary for each paper is normally available to view free of charge and the whole paper can be downloaded upon payment of a fee.
The following are articles on the subject of stocking, written by Dr Paul Gaskell for Trout and Salmon magazine:
•Let Them Get On With It (4 Mb) - Wild broodstock and fry stocking: all its cracked up to be?
•No Sex Please - We're Triploids (3 Mb) - the benefits of infertile stock fish
•To Stock or Not to Stock (4 Mb) - the pros and cons of introducing fish
The following are articles relating to stocking, previously published in the WTT magazine Salmo trutta:
- Native broodstock: ‘Trout stocking – where do we go from here?’ Andy Thomas. Click here to download.
- Science roundup: Trout genetics. Click here to download.
- Science roundup: Origins of brown trout diversity. Click here to download.
Other information relating to stocking:
Environment Agency (England & Wales) National Trout and Grayling Fisheries Strategy, 2003. PDF
Environment Agency (England & Wales) Trout Stocking Policy leaflet, 2009. PDF
Scottish Natural Heritage Commissioned report no.513; Guidelines for stocking of fish within designated heritage sites PDF
Salmon & sea trout: To stock or not? A publication produced for the Scottish Executive by FIsheries Research Services PDF