[4] The environment has been degraded by disposal of garbage, oil spills from small vessels, abandoned buildings and deforestation.

[1] The Perequê River was used as a port for landing goods that came by sea from Paranaguá and were delivered to Matinhos and Guaratuba by ox cart.

[6] The Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) provided about R$195,000 for creation of the Rio Perequê Park.

[2] The park boundaries were modified in 2002 due to conflicts over land ownership, removing some of the downstream portion and adding a section further upstream.

[9] In March 2014 it was announced that as part of the Marine Biodiversity Recovery Program a saltwater aquarium would be installed in the park.