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Giant Trout Linked to Salmon Feed
17 Jul
Summary
- Wild trout near salmon farms are growing to 20 lbs.
- Uneaten feed from salmon cages is suspected cause.
- Conservationists and salmon farm operators debate impact.
An environmental debate is intensifying around Scottish salmon farms, where wild trout are reportedly growing to weights as large as 20 lbs. Conservation groups allege that uneaten feed pellets leaking from Cooke Aquaculture's salmon cages are responsible for this dramatic size increase, leading to what they describe as "monster trout."
Normally, wild trout in Scottish lochs weigh significantly less than 1 lb., with larger specimens typically reaching around 1.5 lbs. Experts confirm that wild brown trout often congregate around fish pens to consume surplus feed that escapes the cages. This practice, known as cage-grazing, is now under scrutiny for potentially altering the trout's ecological role.
Cooke Aquaculture has rejected these environmental concerns, asserting that its operations are subject to stringent regulations and monitoring. The company also stated that antibiotics have not been used at its Loch of Cliff site for many years.
The Scottish government has acknowledged that some trout consume excess feed and grow larger. However, officials state there is currently no evidence that this localized excess food impacts the viability of wild brown trout populations. This situation is part of broader criticisms leveled against salmon farming by environmental organizations, which also cite concerns about sea lice and escaped fish.
