Paiva, R.S. et al. 2006. Ecological considerations on phytoplankton from the Guajará bay and from the Guamá river estuary in Pará, Brazil. Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais. 1, 2 (Mar. 2006), 133–146. DOI:https://doi.org/10.46357/bcnaturais.v1i2.748.