Données sur la croissance de l'anguille (Anguilla anguilla L.) dans le cours moyen du Rhin, région alsacienne

Abstract

Elvers labelled with tetracycline were put in the river Rhine during March 1989 and regularly sampled over a five years period. The catches confirmed high individual variability of their growth. The mean annual growth rate of unsexed fish is around 55 mm with an increment near 100 mm for the first year of life in freshwater. These data fall between the two extremes obtained in other rivers, lakes and lagoons of western Europe.