Pantropical spotted dolphin

Stenella attenuata

Also known as: White-spotted Dolphin, Narrow-snouted Dolphin, Bridled Dolphin

LCLeast Concern
Pantropical spotted dolphin (Stenella attenuata)Pantropical spotted dolphin (Stenella attenuata)SchlankdelfinPantropical spotted dolphinLive pantropical spotted dolphins surfacing, spotted flanks visible
Photo: Marilia Olio · CC BY-SA 3.0Pantropical spotted dolphin (Stenella attenuata)Photo: Marilia Olio · CC BY-SA 3.0Pantropical spotted dolphin (Stenella attenuata)Photo: National Oceanic and Atmospheric Administration · Public domainSchlankdelfinPhoto: National Oceanic and Atmospheric Administration, uploaded by Hepheastos · Public domainPantropical spotted dolphinPhoto: Tommy Andriollo · CC BY 4.0Live pantropical spotted dolphins surfacing, spotted flanks visible

The pantropical spotted dolphin is a fast tropical dolphin whose adults often become freckled. It occurs across warm oceans worldwide. Its habits explain more than a map point: It eats fish and squid and travels in energetic groups. The records shown here document encounters and survey effort, not population size. Together, they show where this mammal has been found and why healthy habitat matters for its future.

US Range
Explore by state

Pantropical spotted dolphin across 2 states

Occurrence records, conservation status, and the places it turns up, state by state. Open a state for detail, or visit its full page.

  • HawaiiNativeOccasional36 records

    State rankUnranked

    Notable placesKaloko-Honokohau National Historical Park

    Countiesrecorded in 3

    Year-round in Hawaii, with recorded sightings peaking in January.

    Full Hawaii page →All Hawaii mammals →
  • FloridaNativeOccasional31 records

    State rankUnranked

    Countiesrecorded in 8

    Year-round in Florida, with recorded sightings peaking in March, with a smaller rise in June and September–October.

    Full Florida page →All Florida mammals →

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Elevation

From 67 georeferenced records, the Pantropical spotted dolphin is recorded from sea levelsea level to 57 m187 ft, with half of sightings below sea levelsea level.

Each band shows the share of georeferenced sightings that fall within it. Records cluster where people live and hike, so low, populated elevations are over-represented. Read this as observation density, not true abundance.

Best encounter

Where and when to see a Pantropical spotted dolphin

Your best chance: Hawaii.

Where
HawaiiHI
Trophic relationshipsFood web What a Pantropical spotted dolphin eats, and what eats it.
Eaten by4
Tiger SharkGaleocerdo cuvierPygmy Killer WhaleFeresa attenuataSmalltooth Cookiecutter SharkIsistius brasiliensisFalse Killer WhalePseudorca crassidens
This speciesPantropical spotted dolphin
Golden LanternfishMyctophum aurolaternatumDiamondback SquidThysanoteuthis rhombusAtlantic Bird SquidOrnithoteuthis antillarumCommon OctopusOctopus vulgarisSlender Inshore SquidDoryteuthis pleiiPurpleback SquidSthenoteuthis oualaniensisCommon Clubhook SquidOnychoteuthis banksiiIndo-pacific Violet Blanket OctopusTremoctopus violaceus
Eats8

A sample of documented feeding relationships, filtered to species that also occur in the US. Diet and predators vary by region and season, and this is not a complete list, many animals eat, and are eaten by, more than what has been formally recorded here.

Life history

The Pantropical spotted dolphin (66.8–107.9 kg147.2–238 lb) is a carnivore that first breeds around 8.2 years, carries a 345-day gestation, and bears about 1 young per litter. Maximum recorded longevity is 46 years.

Life cycle

  1. Gestation345 days (≈11.3 months)
  2. Birthlitter of 1 young
  3. Sexual maturity8.2 yr (female) · 10.8 yr (male)
  4. Typical lifespan46 years
  5. Maximum recorded longevity46 years

Reproduction

Gestation
345days≈11.3 months
Litter size
1youngaverage
Litters / year
0.35littersabout one every 2.9 years
Age at first breeding
8.2years♀ 8.2 · ♂ 10.8 yr

Diet composition

Carnivore

By foraging composition: 60% invertebrates, 40% fish.

  • Invertebrates60%
  • Fish40%

Most active around the clock.

Typical values for the species, not local measurements. Maximum longevity is the longest lifespan on record; most individuals live far less.

Commonly confused with

Animals people sometimes mistake for the pantropical spotted dolphin, and how to tell them apart.

Life in its habitat

It eats fish and squid and travels in energetic groups. It’s tied to places supplying food and shelter. That connection explains much of its range.

Pantropical spotted dolphin surfacing beside a second dolphin's fin in open water
A pantropical spotted dolphin travels alongside a podmate. Photo: russnamitz, CC0.

What records reveal

Records favor ship routes and strandings; blank water doesn’t prove absence. Survey effort varies, and accessible places receive more attention. A gap can’t prove absence.

Two pantropical spotted dolphins surfacing side by side
Two dolphins surface together, dorsal fins breaking a calm sea. Photo: russnamitz, CC0.

Looking ahead

Fishing bycatch, noise, and debris remain concerns. Conservation works best when it protects connected habitat and reduces avoidable deaths. Surveys can reveal change without confusing records with animal numbers.

Two pantropical spotted dolphins leaping together over open ocean
A pair leaps clear of the water, pale spotting visible on the flank of one animal. Photo: russnamitz, CC0.

Sources

  1. GBIF – Stenella attenuata
  2. Wikipedia – Pantropical spotted dolphin
  3. Wikidata – Pantropical spotted dolphin
  4. Global Biotic Interactions (GloBI, CC0)
  5. OpenTopoData – SRTM elevation lookup

Data & sources

The data and visualizations on this page draw on these open sources: