Fig. 4

Trophic State Indices (TSI), lower Capibaribe River in São Lourenço da Mata, Pernambuco, Brazil. Source: CPRH. Trophic State Indices (TSI) recorded between 1991 and 2013 at monitoring station CB-72 on the lower Capibaribe River in São Lourenço da Mata, Pernambuco, Brazil. Source: CPRH. EU = eutrophic, SE = supereutrophic, HE = hypereutrophic