Micropterus floridanus · Centrarchidae · predator
The Florida lineage of black bass, moved to reservoirs in Mexico and Puerto Rico. It is the fish of Mexico's trophy lakes, caught on artificial lures near logs and grass.
Also called: black bass da Flórida, lobina-da-flórida, Florida bass, Florida largemouth bass
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.
Native only to the Florida peninsula (USA); for a long time it was treated as a subspecies of the largemouth bass (Micropterus salmoides) and is now often recognised as its own species. It likes warm water and grows well in tropical and subtropical reservoirs, so it was stocked in lakes in Mexico and Puerto Rico in search of bigger fish. In those reservoirs it crosses with the common largemouth bass, and hybrid populations exist. It is an ambush predator: it stays by logs, submerged timber, vegetation and drop-offs, and eats fish, crayfish and frogs. In Mexico, the reservoirs of the northwest and northeast draw anglers from around the world, always fishing with artificial lures and lots of catch and release.
Robust body, olive-green on the back, greenish flank with an irregular dark band of blotches from snout to tail, and white belly. The mouth is huge: the maxilla extends past the back edge of the eye. The two dorsal fins are nearly separated by a deep notch. Externally it is nearly identical to the common largemouth bass (M. salmoides); the Florida lineage tends to have more lateral line scales, but only genetics separates them reliably, and there are reservoirs with hybrids.
There is no confirmed record in Brazil, where the introduced black bass is the largemouth bass (M. salmoides). Native to the Florida peninsula (USA). Introduced into reservoirs in Mexico, such as Vicente Guerrero (Tamaulipas), and into reservoirs in Puerto Rico, where the Florida lineage predominates.
Habitat: Warm reservoirs and lakes: submerged logs and timber, vegetation beds, points of land, drop-offs and old river channels within the reservoir.
In Mexico's reservoirs the strong season usually runs from November to March, with cooler water and big fish before spawning. In hot summer activity drops during sunny hours. Check the closed seasons for each reservoir.
Daytime, with peaks at dawn and dusk. Bites best at dawn and in the late afternoon, when it rises to the shallows. In strong sun it drops into the shade of logs and drop-offs; on cloudy days it feeds all day.
More sensitive to cold than the common largemouth bass: a cold front shuts down activity and drives fish to the bottom for 1 to 3 days.
Stable pressure helps; the drop before a front often gives a short burst of strikes.
Moderate effect; during spawning, the full and new moons coincide with nests in the shallows.
Light rain and overcast skies help; if there is a thunderstorm with lightning, get out of the water.
A rising reservoir floods new vegetation and draws fish into the shallows; a falling reservoir concentrates fish on points and channels.
Sensitive to hull knocks and motor noise near the structure; approach with the electric motor.
A light breeze on the bank breaks up the light and gets fish active; strong wind makes precise casting hard.
Shallow (0.5 to 3 m) at dawn and during spawning; 4 to 10 m on drop-offs and river channels at midday.
lures
natural baits
accessories
In Mexican reservoirs, work the silicone worm slowly down the drop-off beside the logs: big fish rarely chase the lure; they grab what passes in front of them.
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: Exotic in Mexico and Puerto Rico; native to the Florida peninsula (USA).
In Mexico's federal-jurisdiction inland waters, the limit is 5 fish per angler per day, with one rod in use per angler. Using live fish as bait in inland waters is banned, and fish caught in sport fishing may not be sold. Each reservoir's committee may reduce the bag limit and set sizes.
NOM-060 treats the largemouth bass and the Florida bass together. Outside the reservoirs with their own rules in Annex 1 of the standard, the sport angler may keep up to 5 bass per day, at least 35 cm total length. Once the limit is reached, the rest go back alive, and females visibly carrying eggs must always be released. In boat fishing and tournaments, fishing is only allowed from 6 a.m. to 7 p.m.
At the Aurelio Benassini Vizcaíno reservoir (El Salto), the limit is 5 bass per day, 35 to 45 cm; smaller and larger fish go back to the water right away. At Vicente Guerrero reservoir, 5 bass from 35 to 39.9 cm and 1 above 61 cm per day apply; fish under 35 cm and those from 40 to 61 cm must be released, to build trophy fish.
In federal-jurisdiction waters of the state of Chihuahua, fishing for largemouth bass is banned from March 10 to June 25 each year. The agreement uses the name Micropterus salmoides; since the Mexican rule treats the Florida lineage as a subspecies of the bass, consider the closure to apply to it too. It applies only in Chihuahua.
At the Aguamilpa and El Cajón reservoirs (Nayarit), fishing for all fish is closed from March 1 to June 30; at the Zimapán reservoir (between Hidalgo and Querétaro), from March 15 to June 20. During these periods sport fishing for bass remains allowed only as catch and release, with the fish returned alive.
Hold it by the mouth with your thumb and support the belly on big fish; don't hang a heavy fish by the jaw alone. Release it quickly, preferably near the structure where it was hooked.
White, lean flesh; fillets fried or baked. In Mexico's trophy reservoirs almost every big fish is released.
Length-weight relationship W = a·Lb (a = 0.01047, b = 3.08; FishBase (relação da espécie-irmã Micropterus salmoides; a FishBase não traz relação própria confiável para M. floridanus); comprimento máximo estimado por esta relação a partir do peso recorde). It's an average: a fat or lean fish can vary by 10% to 20%.
estimated weight
—
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.
