An investigative proposal for teaching fish

The diversity of content covered during the didactic unit tries to cover the gap presented by Silva (2003): -....the subject -fish ‖ is presented in a superficial way disregarding important aspects about the ecology of the group and its implications for the balance of ecosystems. There is a need to expand the space dedicated to the subject and the authors should seek information from specific literature on ichthyology zoology and ecology to correct the conceptual problems encountered.....‖.