acará-amarelo
Caquetaia kraussii · Cichlidae · predator
Acará-amarelo from rivers and swamps of Colombia and Venezuela, up to 26 cm. It eats fish and bottom invertebrates and has little commercial fishing.
Also called: acará-amarelo, mojarra amarilla, mojarra
- maximum
- 26 cm
the right time
to be on the water
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…
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hour by hour
tap or drag on the chart to read each hour · on a keyboard, arrow keyssee hour-by-hour table
why this index at —?
choose the day
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.
the fishing month at a glance
what's the best window for the crew?
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.
trend for the coming weeks
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.
everything about the acará-amarelo
who is the acará-amarelo
The acará-amarelo is a freshwater cichlid reaching 26 cm standard length. It lives in the Atrato, Cauca and Magdalena river basins and in the Lake Maracaibo basin, in Colombia and Venezuela, and it was introduced to the Orinoco basin, in Venezuela. It prefers swamps and areas with many aquatic plants, but also occurs in rivers. It eats other fish and bottom invertebrates. It has little commercial fishing and appears in the aquarium trade, but rarely. It poses no danger to anglers.
Essential profile. Identification, where it occurs and rules, with data from FishBase and the cited regulations. Season, time of day, technique and bait are added once we have a good source for the acará-amarelo; in the meantime, see the similar species.
identification
Short, deep body, with vertical dark bands and a black spot on the caudal peduncle, near the base of the tail, plus another in the middle of the body, just below the lateral line. The cichlids of the region look alike, so check the spots and the size, up to 26 cm. The blue acara, from the same country, has blue-green lines on the face and is much smaller.
where found
Basins of the Atrato, Cauca and Magdalena rivers and of Lake Maracaibo, in Colombia and Venezuela. It was introduced to the Orinoco basin, in Venezuela, where it is exotic. Not recorded in Brazil.
Habitat: Swamps and areas with many aquatic plants, and also rivers, at temperatures between 26 and 31 °C.
rules for the acará-amarelo
Summary of the regulations we found, with the source for each. Rules change; before keeping or transporting fish, check with the state environmental agency.
We found no species-specific rule beyond the region's general rules.
catch and release
catch and release Releasing the fish alive, quickly and with a wet hand. During a closed season it isn't always allowed: what the regulation says applies.
Medium-sized fish: hold it with a wet hand, remove the hook carefully and return it quickly.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.0309, b = 3.01; FishBase (relação peso-comprimento bayesiana, estimativa da própria espécie)). It's an average: a fat or lean fish can vary by 10% to 20%.
estimated weight
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sources and references
Essential profile: size, length-weight, depth, countries and conservation come from FishBase and the cited regulations, and the texts were written from those sources. Season, time of day, sensitivities, technique and baits and lures are not included yet, because we did not find a good source for this species.
- scientific FishBase: Caquetaia kraussii (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Caquetaia kraussiiNames by country and language.
similar species
where each number comes from
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.
sources for this lookup
how accurate the forecast is
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: