Bibliographical Checklist of marine and estuarine phytobenthos of Ilha Grande, Ilha Grande state park, Angra dos Reis, Rio de Janeiro, Brazil

Abstract

This paper is a taxonomically updated floristic inventory and a bibliographical summary of the marine and estuarine benthic flora located in the buffer zone of Ilha Grande State Park, Angra dos Reis, Rio de Janeiro, Brazil (coordinates: latitude 22° 50’S between 23° 20’S and longitude 44° 00’W between 44° 45’W). A total of 26 papers were found dating from 1928 to 2016. The surveys at Ilha Grande can be divided into three periods: a) taxonomical studies at specific points, b) taxonomic in­ventories in certain areas, c) ecological surveys located in the north/northwest region of the island. A total of 256 phytobenthic taxa were recorded for Ilha Grande, which makes it the richest insular marine benthic flora published on the Brazilian coast. The richest taxonomic division was the Rhodophyta with 156 taxa, followed by the Chlorophyta division with 51 taxa and the Ochrophyta division with 49 taxa. The predominant orders were: red algae: a) Ceramiales (49%); b) brown algae: Ectocarpales (29%); c) green algae: Cladophorales (45%). The most frequent taxa were: green algae: Ulva flexuosa Wulfen subsp. flexuous and Ulva fasciata Delile (40% each); b) brown algae: Padina gymnospora (Kutzing) Sonder (47%), c) red algae: Gelidium sp. [= G. pusillum (Stackh.) Le Jol. var. pusillum (53%)].