Toxicity testing with embryos of marine mussels: protocol standardization for Perna Perna (Linnaeus, 1758) - Zaroni, Leticia Pereira; Abessa, Denis Moledo de Souza; Lotufo, G R; Sousa, Eduinetty Ceci Pereira Moreira de; Pinto, Ylara A (Bulletin of Enviromental Contamination and toxicology, 2005)