| spatial and temporal characterization of fish assemblages in a tropical coastal system influenced by freshwater inputs: northwestern yucatan peninsula. | coastal lagoons are important systems for freshwater, estuarine and marine organisms; they are considered important zones of reproduction, nursery and feeding for many fish species. the present study investigates the fish assemblages of the natural reserve of dzilam and their relationship with the hydrologic variables. a total of 6 474 individuals (81 species) were collected, contributing with more than 50% considering the importance value index (ivi), sphoeroides testudineus, fundulus persimili ... | 2009 | 19637691 |