Temporal distribution of ichthyoplankton in the Forquilha river, upper Uruguay river – Brazil: Relationship with environmental factors - doi: 10.4025/actascibiolsci.v36i1.17993. Acta Sci. Biol. Sci. 2013;36(1):59-65. doi:10.4025/actascibiolsci.v36i1.17993