Suboptimal growth among individuals of brown trout ( Salmo trutta ) in a temperate river

Abstract

This study assessed growth of individually tagged brown trout Salmo trutta in a temperate system of north‐west Spain (2010–2012). This study identified notable individual variation in fish growth with individuals growing sub‐optimally compared with laboratory‐based growth‐model predictions in most cases (85.5% of individuals). The present observations of suboptimal growth need to be considered in view of intraspecific competition or limiting food resources instead of thermal regimes.

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