Abstract
This paper studies a population of Abra alba settled on sedimentologically stable bottom in the Santander Bay. Temporal dynamics of this species is influenced by temperature fluctuations. Four different annual cohorts were reco.!ded. The population has a secondary AFDW prodution of 845 mg m-2 year-1 and a P/B ratio of 2.82. The theoretical growth rate indicates a maximum lifespan of two years.