Effects of body size on the diet of Rivulus haraldsiolii (Aplocheiloidei: Rivulidae) in a coastal Atlantic Rainforest island stream, southern Brazil - Vinícius Abilhoa; Jean Ricardo Simões Vitule; Hugo Bornatowski; Fagner Breda de Lara; Glauco Ubiratan Kohler; Luciana Festti; Wanessa Priscila David do Carmo; Igor Kintopp Ribeiro (Biotemas, 2010)