New York mammals

Striped Dolphin in New York

Stenella coeruleoalba

Native to New York SNRN in New York

Not listed as nonindigenous in New York by USGS NAS; native to its New York range.

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.

Striped Dolphin in New York, by the numbers

Occasional in New York 52nd most recorded of 102 mammals logged in New York

52 occurrence records
1 with iNaturalist photos
Feb 2, 2024 Last seen in New York

Records from 2000–2026.

52 total records count every New York occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 51; the monthly chart covers the 50 records with a full observation date.

When to look for the Striped Dolphin in New York

Most sightings fall in April.

50 New York occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly New York records (table)
MonthRecords
January4
February2
March2
April29
May3
June1
July3
August0
September2
October0
November3
December1

Monthly striped dolphin occurrence records (iNaturalist and GBIF) in New York, 2000–2026.

Seasonality

Year-round in New York, with recorded sightings peaking in April.

Occurrence map

Where Striped Dolphin has been recorded in New York

51 records mapped · zoom and drag to explore

48 New York records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Fire Island National Seashore 2

Protected places with the most striped dolphin sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in New York

CountyRecords
Suffolk County 16
Queens County 1
Other localities 35

The complete county distribution, spread across 2 New York counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

New York’s 52 records make this one of the better-documented East Coast states for the striped dolphin, and Long Island dominates the map. Suffolk County, the island’s ocean-facing east end, leads with 16 records, and Fire Island National Seashore alone accounts for 7. Notably, more than half the records carry no county assignment at all, which fits an animal whose real habitat is open water, logged from boats or found beach-cast far from any town line.

One April out of twenty-six years

April holds 29 of the 52 records, a single-month majority that no migration can explain. For offshore dolphins, one stranding episode or one intensive survey cruise can dominate a state’s whole tally, and a spike like this is exactly what that looks like. Read the calendar as a history of events and effort, not a seasonal rhythm. The most recent confirmed record, from February 2024, at least confirms the file is still being written.

A nonbreeding visitor, unranked

NatureServe lists the species as unranked in New York in its nonbreeding-visitor category, the honest grade for a deep-water animal that never resides, calves, or stays. The IUCN rates it Least Concern globally. Fire Island and Robert Moses State Park, the south shore’s long ocean beaches, are where New York’s evidence of this open-sea dolphin keeps washing up, and where the next record will most likely come from.

Occurrence data from GBIF.

More mammals in New York in the atlas

Data & sources

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

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"