Maine mammals

North Atlantic right whale in Maine

Eubalaena glacialis

Native to Maine SNR Unranked in Maine

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

IUCN Red List status

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

CR – Critically Endangered

Extremely high risk of extinction in the wild.

North Atlantic right whale in Maine, by the numbers

Rare in Maine 68th most recorded of 85 mammals logged in Maine

18 occurrence records
3 with iNaturalist photos
Jul 11, 2014 Last seen in Maine

When to look for the North Atlantic right whale in Maine

Most sightings fall in July to August.

18 Maine occurrence records (iNaturalist and GBIF) by month of year. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly Maine records (table)
MonthRecords
January0
February0
March0
April0
May3
June0
July5
August5
September2
October0
November3
December0

Monthly north atlantic right whale occurrence records (iNaturalist and GBIF) in Maine.

Seasonality

Year-round in Maine, with recorded sightings peaking in July–August, with a smaller rise in November and May.

Occurrence map

Where North Atlantic right whale has been recorded in Maine

18 records mapped · zoom and drag to explore

9 Maine records mapped

Maine holds just 18 records of the North Atlantic right whale, and the most recent dates back to 2014, more than a decade ago. For a species down to only a few hundred individuals worldwide, even that small, aging record set carries real information.

A feeding ground that’s shifted north

Right whales historically fed in the Gulf of Maine each summer, skimming dense patches of tiny copepods with their mouths open, but over the past fifteen years much of that food supply has shifted northeast into the Gulf of St. Lawrence as ocean temperatures have changed. Many right whales have followed their prey. That shift lines up with Maine’s aging record set: a whale that once reliably fed in Gulf of Maine waters each summer now spends more of its year farther north, leaving Maine’s local data thinner and older with each passing season.

A Maine industry in the mix

Entanglement in fishing rope is one of the two leading causes of death for this species, and Maine’s traditional lobster fishery, one of the rope-heaviest gear types on the water, has become part of the regulatory response to protect what’s left of the species. That’s a real point of overlap between the whale’s decline and Maine’s own working waterfront, even though actual sightings in state waters stay rare.

Status in Maine

NatureServe hasn’t assigned Maine its own rank for the right whale, listing it SNR, though the species is native to state waters when it does pass through. Globally it carries a G1 rank, critically imperiled, the same signal as the IUCN’s Critically Endangered listing and a reflection of a species reduced enough that individual whales can be tracked and named by researchers.

Occurrence data from iNaturalist and GBIF.

More mammals in Maine 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