An experiment on faster growth of salmon Salmo salar (L.) in a Scottish stream

• Published in: Journal of Fish Biology
• Main Authors: Egglishaw, Henry J., Shackley, P. E.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1973
• Subjects: Salmo salar
• Online Access: http://dx.doi.org/10.1111/j.1095-8649.1973.tb04448.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1973.tb04448.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1973.tb04448.x

The experiment was made in an attempt to modify the usual relationship in which young trout grow faster than young salmon in streams in which they occur together. A stretch of a trout stream was stocked with advanced salmon eggs, which produced fry earlier than the trout eggs laid naturally. The salmon grew faster than the trout and were longer than the trout at the end of the growing season. The mean length of 77.7 mm attained by the salmon is the largest known size reached by salmon in their first year when feeding on natural food supplies in streams in Scotland. Survival rate from egg planting to production of salmon of this mean length was high.