Dear Colleagues, We are building a new rehabilitation center for manatees in Brazil. All the effluent from the rehabilitation tanks will be treated before being correctly discharged. However to properly size the treatment plant effluent, we need some information about the effluent from the water quality in a manatee tank of , as the concentration of coliforms, biochemical oxygen demand, dissolved oxygen, nitrate, oils and greases and suspended solids. We're having some diffuclts finding this information, so if a colleague working with manatees can send us these data, along with the volume of water tank and the number of animals, we would appreciate very much. Thank you very much for your attention. Carol Ana Carolina Oliveira de Meirelles cameirelles@yahoo.com.br Ana Carolina Oliveira de Meirelles Coordenadora do Programa de Mamíferos Marinhos Associação de Pesquisa e Preservação de Ecossistemas Aquáticos - AQUASIS SESC Iparana, Praia de Iparana s/ no. CAUCAIA-CEARÁ BRASIL CEP: 61600-000 55 085 3318 4911 www.aquasis.org