Brachyplatystoma juruense · Pimelodidae · predator
Amazon catfish striped like a zebra, with dark cross bands and a tail with filaments. A handsome channel fish that turns up in bottom fishing with fish bait.
Also called: dourada-zebra, zebra, surubim-flamengo, flamengo
Choose the place and the species. The index, from 0 to 100, combines weather, sun, moon and tide with each fish's habits. Up to 28 days, with each day's confidence.
Reading the weather across 3 global models and 31 simulations…
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.
Choose how many fishing days. We compare each stretch by its average index, discount days with a warning or closed season, and show the 3 best.
Line: the middle value of 31 simulations of the American GEFS model. Band: where 8 out of 10 fall. Narrow, firm trend; wide, high uncertainty.
Pimelodid catfish of the same genus as the dourada and piraíba, but much smaller: in Colombia the largest recorded size is 80 cm standard length and 5.7 kg, with average catches between 55 and 63 cm. It lives in the channel and large tributaries of whitewater rivers in the Amazon and Orinoco basins and eats fish. It makes long migrations, including across countries: in the Orinoco it migrates with the babão during the falling water, from October to January, and in the upper Putumayo it spawns in January and February, in the dry season. There are records near the Amazon estuary. In Brazil it is caught occasionally on bottom fishing with fish bait, and is often photographed and released for its beauty. In Colombia it is on the national red list as Vulnerable.
Elongated body, flattened head and very small eyes, with 9 to 11 dark transverse bands of similar width over a light yellowish to grey background. Long maxillary barbels reaching the base of the pectoral fin. Adipose fin longer than the anal fin, and forked tail with filament tips. The caparari has spots and bands forming a net, with no filaments on the tail. The name zebra is also used in trade for another species of the genus, B. tigrinum.
Channel and large whitewater tributaries of the Amazon basin, from Peru and Colombia to Pará, with records near the estuary; Orinoco basin in Colombia and Venezuela.
Habitat: Main channel of whitewater rivers, pools and banks with current.
native to the basins
states
Amazonas, Pará, Acre, Rondônia, Mato Grosso
Falling water and drought (July to November) concentrate catfish in the channel; spawning migrations vary from river to river.
Night and twilight. More active at night and at dusk; stays on the bottom by day.
Cold spells reduce activity for a short time.
Little effect on the bottom.
Effect not measured; many anglers prefer dark nights for catfish.
Little effect; it is a murky-water fish.
With the river falling, fish concentrate in the channel pools.
Not very sensitive.
Little effect.
Bottom, 3 to 15 m.
natural baits
accessories
Fish piece on the bottom, at the drop-off between the channel and the pool. A good-looking fish: have your camera ready and release it quickly.
Summary of the regulations we found, with the source for each. Rules change; before keeping or transporting fish, check with the state environmental agency.
Conservation: Not on the Brazilian national list (Portaria GM/MMA nº 1.667/2026). In Colombia, the Libro Rojo (2012) lists it as Vulnerable (VU), due to low abundance and overfishing.
In the Orinoco basin, in Colombia, the minimum catch size for apuy or cebra is 50 cm standard length.
Source: Resolución INDERENA nº 2086/1981, in the AUNAP minimum size table in force
Allowed: All fishing modalities are prohibited in rivers, including catch and release (Law 9.096/2009, art. 19-A). Exceptions: subsistence fishing from shore (3 kg or 1 fish, no transport or sale) and scientific fishing. Law 13.159/2025 now allows licensed sport fishing in UHE/PCH hydropower reservoirs, natural lakes and border rivers, subject to a scientific study and a license from the environmental agency. We have not confirmed whether these licenses are already being issued.
Allowed: The same recreational-angler exceptions as in Portaria 48/2007 apply (handline or rod, 5 kg + 1 fish), unless a stricter state rule applies.
Source: Portaria IBAMA nº 48/2007
Allowed: Recreational anglers with handline or rod, line and hook are outside the Annex II prohibitions, with a bag limit of 5 kg + 1 fish, unless a stricter state rule applies.
Source: Portaria IBAMA nº 48/2007
Allowed: Subsistence fishing only.
Source: Portaria IBAMA nº 48/2007
Allowed: See the exceptions in Portaria 48/2007 and the state rules for each bank.
Source: Portaria IBAMA nº 48/2007
Support the body horizontally, without hanging it by the mouth. Remove the hook with pliers and release it quickly.
Light flesh of a skinned fish, sold as catfish in Amazon markets.
Length-weight relationship W = a·Lb (a = 0.00589, b = 3.1; FishBase). It's an average: a fat or lean fish can vary by 10% to 20%.
estimated weight
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The season weights (months), the time of day and the sensitivities (cold, pressure, moon, wind, rain, tide, strong light, murky water and noise) are the app's editorial estimates, based on the literature below and on the field experience of anglers and guides. They are not official data nor a measurement made for this species, and they may vary by region and year. Closed seasons and legal rules appear in the rules section, with the norm and a link.
The weather comes from three independent global models, cross-checked hour by hour: when they agree, confidence goes up; when they diverge, the band between them shows on the chart. Beyond 16 days, we use the GEFS ensemble of 31 simulations: if 20 of the 31 predict rain, the chance of rain is 65%. Sun and moon are calculated astronomically, with no uncertainty.
The index adds up, weighted for each species: time of day (species curve anchored to real sunrise and sunset), moon (transits, rise and set, phase), pressure (3 h trend and 24 h swing), water temperature (in rivers, estimated from air temperature; at sea, estimated by an ocean model), wind, rain, clouds, tide and the month in the species' cycle.
Accuracy measured in the reference project (4 regions, 93 days, forecast vs. observed): maximum temperature is off by 0.6 °C on average the next day and 1.7 °C at 7 days; rain of 5 mm or more is detected 76% of the time the next day and 57% at 7 days. Detection isn't everything: the false alarm rate isn't published here yet, and 93 days in 4 regions is still a small sample. We now also measure every day, at the app's destinations:
Your location is saved only on this device and feeds the forecast, the map and the "today" on the home page.
