longnose puffer
Sphoeroides lobatus · Tetraodontidae · omnivore
Long-snouted puffer of bays and estuaries in the eastern Pacific, reaching 35.8 cm and weighing up to 972 g.
Also called: baiacu-focinho-longo, botete narizón, longnose puffer
- maximum
- 36 cm
- record/max.
- 1.0 kg
- depth
- 10–60 m
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…
—
hour by hour
slide your finger or mouse over the chart to see each hoursee 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 longnose puffer
who is the longnose puffer
The family Tetraodontidae includes the puffers, round-bodied, which can inflate with water. This species reaches 35.8 cm and weighs up to 972 g, and lives in the eastern Pacific, from California to Chile, including the Galápagos, with records in Mexico, Central America, Colombia, Ecuador and Peru. It occupies bays, estuaries and shallow coastal areas, from 10 to 60 m, near the bottom. It is common in catches from these areas, mostly from commercial fishing, and is not sought by sport fishing.
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 longnose puffer; in the meantime, see the similar species.
identification
Round, short body, like that of other puffers, with an elongated snout, which gives the species its name. It lives in bays and estuaries, where it is common, and in shallow coastal areas, near the bottom, from 10 to 60 m. To tell it apart from other Pacific puffers, such as the bull's-eye puffer, look at the long snout.
where found
Found in the eastern Pacific, from California to Chile, including the Galápagos, in bays and estuaries. In Latin America it ranges from Mexico to Chile. There are no records on the Brazilian coast.
Habitat: Bays, estuaries and shallow coastal areas, near the bottom, from 10 to 60 m.
rules for the longnose puffer
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.
Like other puffers, it has a strong beak: hold it away from your fingers and release it promptly. Do not take it home to eat, because puffers can be toxic.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.02512, b = 2.88; 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
—
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: Sphoeroides lobatus (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Sphoeroides lobatusNames 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: