A sovereign state, also known as a sovereign country, is a political entity represented by one centralized government that has sovereignty over a geographic area. International law defines sovereign states as having a permanent population, defined territory, one government, and the capacity to enter into relations with other sovereign states. It is also normally understood that a sovereign state is independent.

Here is an overview of some countries of the world grouped by continents. Countries are presented in the context of waters, fish species, and sport fishing. Thus, for each country, the most important waters (all oceans and seas, as well as the largest rivers and lakes), all fish species (so far included in our database), as well as brands of fishing equipment, and companies engaged in the production or trade of fishing tackle.