Acknowledgements
We would like to thank the lab staff at the Aquatic Ecology Laboratory
of the UFC. TBV would like to thank Coordenação de Aperfeiçoamento de
Pessoal de Nível Superior (CAPES) for the grant provided during his
doctoral degree. Part of these study was funded by CNPq/PPBIO (agreement
# 457463/2012-0) and CNPq/ICMBio (agreement # 552009/2011-3), CNPq
grant (Process 471283/2006-1), The International Fund for Ecological
Research, grant no. 00543 and Aperfeiçoamento de Pessoal de Nível
Superior - Brasil (CAPES) Finance Code 001