Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Gulf of Maine

Alligator – Residency

2nd sighting in Gulf of Maine
Fluke of Alligator
Alligator Confirmed in the catalog @19334
Aug 8 – 22, 2026 · Gulf of Maine

Gulf of Maine · Aug 2026

74 m
Deepest dive
3:02
Longest dive
11
Dives
Sightings
2
Days between first and last sighting
14
Deepest dive on record
74 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 8, 202675 m20.4°C28 m
Aug 22, 2026146 m19.7°C74 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Aug 8, 2026 — seafloor 75 m (measured), deepest dive 28 m (modelled)Aug 8Aug 22, 2026 — seafloor 146 m (measured), deepest dive 74 m (modelled)Aug 22

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

74 m
Deepest dive
3:02
Longest dive
11
Dives
24 m
Avg dive depth
2
Sightings
14
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010074 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (146 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Aug 22, 2026

measured
Seafloor depth
146 m
Sea-surface temperature
19.7°C
Distance from shore
52.0 km

Across the residency · 2 sightings

measured
Seafloor depth
75 m – 146 m
Sea-surface temperature
19.7°C – 20.4°C
Distance from shore
16.0 km – 52.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 2 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.