delta del paraná — zárate
A maze of rivers and streams about 90 km from Buenos Aires. Dorado in winter, pejerrey, boga and tararira in the channels.
The Delta del Paraná is a maze of islands, rivers and streams between Buenos Aires and Entre Ríos. At Zárate, the Paraná de las Palmas and the Zárate–Brazo Largo bridge complex give access to the middle Delta and the Paraná Guazú. In cold weather, dorado run down the river and hunt in the currents, at stream mouths and channel breaks. Boga (piapara) are caught on the bottom with dough bait, and pejerrey make float fishing productive in winter. In the inner streams, tararira (trahira) hit surface lures in the heat. Fishing is from a boat, with a guide or in your own boat from the marinas.
best season
Dorado from autumn to late winter, when they run down to the Delta; in Buenos Aires Province dorado is in closed season from October 1 to January 15. Pejerrey in winter and tararira (trahira) from late summer to autumn.
Local rules: A sport fishing license from the Province of Buenos Aires is required (Ministerio de Desarrollo Agrario, online application); in Entre Ríos waters, the Entre Ríos license applies. The Buenos Aires regulations set a full closed season for dorado from Oct 1 to Jan 15, a bag limit of 2 per day and a minimum size of 60 cm; trahira has a bag limit of 3 and a minimum size of 40 cm. In Entre Ríos, dorado is catch and release only (Law 11.174). Release large dorado. Confirm the local rules.
- getting there
- Zárate is about 90 km from Buenos Aires via the Panamericana (RN 9). The Zárate–Brazo Largo bridges lead to Entre Ríos.
- facilities
- Marinas, boat storage, fishing guides, bait shops and hotels in Zárate and Campana. In the Delta there are inns that can only be reached by boat.
- country
- Buenos Aires, Argentina
tip
For dorado in the Delta, use a mid-water lure or live bait (morena) at the mouths of the arroyos on the ebb tide. Pejerrey needs thin line and a light float.
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Each card shows the day's index (0 to 100) and, below it, a strip with the index for each hour, from 0h to 23h. from poor to excellent.
what you can catch here
before you fish in Argentina
There is no national license: the sport fishing license belongs to each province. In northern Patagonia, the Patagonian Regulation permit issued by Neuquén, Río Negro, Chubut or the National Parks Administration (APN) is valid in all these jurisdictions, including the southern parks; in 2025/2026 it cost $40,000 per season for residents of the country and from $50,000 (day) to $280,000 (season) for non-resident foreigners, with online purchase. Santa Cruz and Tierra del Fuego have their own permits (TDF 2026/2027: foreigners from $78,000 per day to $260,000 per season). On the coast (Buenos Aires, Entre Ríos, Corrientes) each province issues its own.
- The license is provincial. In Patagonian national parks, the APN permit or the provinces' Patagonian permit is valid, and fishing is only allowed in the environments listed in the parks' annex.
- Patagonian Regulation (2025/2026): general season from November 1 to May 1; in rivers and streams, including 200 m from their mouths, mandatory release with a single barbless hook, except for exceptions in the annexes; as a rule, one artificial lure with a single hook; selling fish prohibited; felt-soled boots prohibited.
- In national parks, all native species (perch, Patagonian pejerrey, catfish, peladillas) must be released; Atlantic salmon must be released in all environments under the regulation.
- Golden dorado: in Corrientes it is a Provincial Natural Monument (Law 6,730/2025); in Entre Ríos commercial fishing is prohibited and sport fishing is catch-and-release only (Law 11,174/2024); on the Uruguay River, shared with Uruguay, there's a CARU closed season from September 1 to December 31.
- Tierra del Fuego (2026/2027): season from October 30, 2026 to May 2, 2027, fly and spinning only, and mandatory release in all provincial environments starting March 1, 2027.
The rules and closed seasons in the rest of the app are Brazilian. Outside Brazil, the regulations of the country and province apply: confirm with the official agency.
sources and references
Access, facilities and season information changes: check with the lodge, a local guide or the city hall before you travel.
- official Província de Buenos Aires, Ministerio de Desarrollo Agrario — Pesca deportivaLicense, online system and link to the sport fishing regulations
- official Província de Buenos Aires, Dirección Provincial de Pesca — Reglamento de Pesca Deportiva (documento vinculado na página oficial)Dorado: 2 per day, minimum 60 cm, closed season Oct 1 to Jan 15; trahira: 3 per day, minimum 40 cm, closed season Nov 1 to Jan 31
- official Boletín Oficial de Entre Ríos, 30/12/2024 — Ley 11.174 (dourado, peixe de interesse turístico provincial)Bans commercial fishing for dorado; sport fishing only with mandatory release