This research is trying to explain the case-study of TEDs which has passed on us a good sample of the kind of conflicts where we do not know if countries are following their ecological reasons or they are only interested in political issues instead, wondering if the US legislation regarding to TEDs and their subsequent export embargo of shrimp was motivated by the ecological problems regarding to the high mortality of mammals and another captured fauna, or due to economic and political reasons and the commercial protectionism of this country.