pacific sharpnose shark
Rhizoprionodon longurio · Carcharhinidae · predator
Long-snouted shark of the eastern Pacific, from southern California to Peru. It does not occur in Brazil and is sold fresh or frozen.
Also called: tubarão-picudo-do-Pacífico, cazón picudo, tiburón hocicón, pacific sharpnose shark
- maximum
- 110 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
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 pacific sharpnose shark
who is the pacific sharpnose shark
The Pacific sharpnose shark is a small shark of the family Carcharhinidae, with a long, pointed snout. It reaches 110 cm, and there are records of females up to 154 cm. It lives on the continental shelf, most often in the coastal zone, down to 100 m. It is viviparous, and pups are born at 33 to 34 cm. It turns up in commercial fishing, and its flesh is used fresh or frozen for food, and also goes into fishmeal.
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 pacific sharpnose shark; in the meantime, see the similar species.
identification
Slender shark with a long, pointed snout. Like the other sharks of the family, it has two dorsal fins and an anal fin. It is of the same genus as the Brazilian sharpnose shark of the Atlantic, but lives in the eastern Pacific, from southern California to Peru. It shares the region with the whitenose shark (Nasolamia velox), which has a pale snout tip. Catch location and size help identify it.
where found
Eastern Pacific, from southern California (USA) to Peru, with records in Mexico, Central America, Ecuador and Peru. It does not occur in Brazil.
Habitat: Eastern Pacific continental shelf, in shallow waters and near the coast, down to 100 meters.
rules for the pacific sharpnose shark
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.
Sharp-toothed shark: hold it by the base of the tail and the head, without getting close to the mouth, and release it with minimal handling.
in the kitchen
Sold fresh or frozen for food; part also goes to fishmeal.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.00427, b = 3.1; FishBase (relação peso-comprimento bayesiana, estimativa pelo gênero e formato do corpo)). 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: Rhizoprionodon longurio (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Rhizoprionodon longurioNames 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: