Found in database

order	scientific name	common name	record weight in kg	record weight in lb	water	country	picture
catfishes over 50 kg	Zungaro jahu	Manguruyu	300,00	661.39	Parana River system	Argentina
skates and rays	Potamotrygon brachyura	Short-tailed River Stingray	300,00	661.39	Parana River system	Argentina
catfishes over 50 kg	Pseudoplatystoma corruscans	Spotted Sorubim	150,00	330.69	Rio Parana	Argentina
catfishes over 50 kg	Luciopimelodus pati	Pati	50,00	110.23	Parana River system	Argentina
lungfishes	Lepidosiren paradoxa	South American Lungfish	40,00	88.18	Amazon River system, Parana River system	Argentina
skates and rays	Potamotrygon motoro	Ocellate River Stingray	35,00	77.16	Parana River system	Argentina
skates and rays	Potamotrygon hystrix	Porcupine River Stingray	35,00	77.16	Parana River system	Argentina
characins	Salminus brasiliensis	Dorado	34,00	74.96	Rio Parana	Argentina
catfishes over 50 kg	Pseudoplatystoma fasciatum	Barred Sorubim	32,00	70.55	Rio Parana	Argentina
Salmonidae over 10 kg	Salmo trutta trutta	Sea Trout	22,23	49.01	Rio Grande	Argentina
characins	Piaractus mesopotamicus	Pacu	20,00	44.09	Parana River system	Argentina
characins	Prochilodus lineatus	Streaked Prochilod	17,00	37.48	Rio Parana	Argentina
skates and rays	Potamotrygon falkneri	Largespot River Stingray	10,00	22.05	Amazon River system, Parana River system	Argentina
catfishes up 10 kg	Pterodoras granulosus	Granulated Catfish	10,00	22.05	unknown	Argentina
characins	Brycon orbignyanus	Pirapitá	10,00	22.05	Parana River system	Argentina
knifefishes	Sternopygus macrurus	Longtail Knifefish	9,00	19.84	unknown	Argentina
catfishes up 10 kg	Oxydoras kneri	Kner's Thorny Catfish	9,00	19.84	Parana River system	Argentina
Perciformes up 10 kg	Percichthys trucha	Creole Perch	9,00	19.84	Rio Parana	Argentina
Perciformes up 10 kg	Plagioscion squamosissimus	South American Silver Croaker	7,00	15.43	Parana River system, São Francisco River system, Amazon River system, rivers of Guianas, Orinoco River system	Argentina
knifefishes	Rhamphichthys rostratus	Longnose Knifefish	7,00	15.43	unknown	Argentina
herrings	Pellona flavipinnis	Yellowfin River Pellona	6,00	13.23	Parana River system, Amazon River system, Orinoco River system	Argentina
silversides	Odontesthes bonariensis	Pejerrey	5,20	11.46	unknown	Argentina
spiny eels	Synbranchus marmoratus	Marbled Swamp Eel	1,00	2.20	unknown	Argentina