Relationship Between Atlantic Salmon Smolts and Adults in Canadian Rivers

Abstract

Predicting abundance and stock structure of Atlantic salmon adults is discussed, with respect to data regarding smolts. Four aspects of the predictive relationship between smolts and adults are examined: 1) smolt counts in a particular river to predict adult returns and measure sea survival; 2) environmental factors; 3) spreading egg deposition over several years through multiple spawning; and 4) examining smolts to determine sea age of adults. Numbers of smolts may be used to predict returns of adults.