autores Ronaldo Gomes de Sousa Lopes- Lima, Manuel Sousa, R. Amorim, A. Sousa, Ronaldo Gomes Sobral, C. Froufe, E. Sobral, Carina Elsa Froufe Varandas, S. Simone Varandas Teixeira, A. Amilcar Teixeira Lopes-Lima, M.
palavras-chave Age factors Animal distribution Animals Bivalvia Body size Conservation Conservation of natural resources Distribution Ecosystem Environmental monitoring Freshwater pearl mussel Margaritifera margaritifera Population density Portugal River Paiva Rivers