Spatiotemporal Variation in Fish Assemblage in a Coastal Lagoon without Direct Contact with the Sea (Southeastern Brazil)

摘要: Abstract The Cabiunas Lagoon is a narrow water body that perpendicular to the sea and isolated from it by sandbank. Before 1991, sandbank was sometimes opened for few days local residents, but at present seawater only enters limited groundwater seepage or overtopping barrier in storms. In 1998 Restinga de Jurubatiba National Park established, including Cabiu nas Lagoon. Studies on structure spatial distribution of fish assemblage were performed between 1991 1994; we carried out one year (2001–2002) monthly monitoring lagoon identify spatiotemporal variations assemblage. closed altered salinity content, favoured oligohaline conditions increase aquatic macrophyte abundance, promoting freshwater species dominance reduction marine dependent some coastal resident adapted paralic ecosystems. Two freshwater, two resident, five d...