Total number of genera, number of brackish/freshwater genera of according to , percentages genera found exclusively in lagoon types (exclusive genera), frequent genera, minimum–maximum densities of nematodes (and average inds.10cm-2), and the most abundant genera (inds.10cm-2) in closed, intermittently open/closed and open lagoons of Santa Catarina coast, South Brazil. A complete list of nematode genera, environment (brackish/freshwater), and mean densities in each lagoon typology can be found in S2 Table.