The fundamental atmospheres for the sport fishing in Formosa are given by the main rivers that skirt it and that they are three, the Pilcomayo, the Bermejo and the Paraguay.
The journey of the up-to-date maps and the study of the local guides that surrender generally with the fishing licenses, put to the point to the tourist or the sportsman that goes for the first time to that area about the variety and quantity of species, of size always superior to that foreseen.
Inside a list excessively tentative, since the conditions of the rivers constantly vary, they can make an appointment the fishing of mouth Pilagá, spa Viejo, La Emilia , Colonia Dalmacia, puerto Pilcomayo, Colonia Aquino, lagoon Herradura,, bank Payaguá, stream Ramírez, mouth of the Bermejo and School Villa. In these places the possibility exists of carrying out successful fishings from the banks. But should stand out that as very wide areas are reached and with islands, it is more convenient the use of crafts with portable motor that will allow to multiply the possibilities.
With regard to the river Paraguay, it should also stand out the presence of the corvine one of river that reaches the 3 kgs in those areas. of weight and that it is shown very voracious. For many it is a localization of kind of a great resistance to the indexes of salinity. It is from very similar aspect to their, apparently, relatives of the sea, but their coloration is definitely silver, with a touch of brown greenish in the loin. This species is usually captured also in the River Plate, to 1.200 km. of Formosa, reason why it is also sustained that carries out big periodic migrations up stream for the Paraná river.
The fishing of the dorado and the surubí with lures that it attracts to the biggest quantity in fans, are practiced almost exclusively in waters of the river Paraguay. There those devices are used according to the conditions of clarity of the river. In general and except for the growing ones periodic of the Pilcomayo and the Bermejo, the waters are the sufficiently clear ones as to allow the employment of undulant lures.
The team of light spinning is used in tributary streams and annexed lagoons, of very clear waters. The fly team is also there used that is taken the fly team there it is used that is taken cleanly by the pirañas, toothy, chafalotes, tarariras and doradillos. That whole smaller fauna swarms in those waters attracted by the great quantity of species forrajeras like the different mojarras classes and toothy, batrachians, snakes and eels. It is a smaller fishing that is practiced as alternative or during trips with little free time, but year after year has bigger quantity of followers attracted by the use of teams ultralivianos.
The great difference among the fishing in the two atmospheres or basins of this county, that is to say, that of the rivers Pilcomayo and Bermejo that of the Paraguay is fundamentally in the color of the waters, which determine, although it seems difficult understanding for the neophytes, the teams to use and the species that will be been able to get paid.