Resource partitioning between two young-of-year cownose rays Rhinoptera bonasus and R. brasiliensis within a communal nursery inferred by trophic biomarkers - Rangel, Bianca de Sousa; Hussey, Nigel E.; Gomes, Aline D; Rodrigues, Alexandre; Martinelli, Luiz Antonio; Moreira, Renata Guimarães (Journal of Fish Biology, 2019)