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Gulf of Maine

Ridgeline – Residency

25th sighting in Gulf of Maine
Fluke of Ridgeline
Ridgeline Confirmed in the catalog @12737
Jul 18 – Oct 12, 2026 · Gulf of Maine

Green Water, Good Company

Late summer, cool water, more boats catching me on camera than I can count.

94 m
Deepest dive
3:57
Longest dive
120
Dives
Sightings
9
Days between first and last sighting
86

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 18, 202677 m12.0°C51 m
Jul 28, 202677 m14.9°C64 m
Aug 1, 202695 m14.5°C38 m
Aug 6, 202615 m14.7°C14 m
Aug 7, 2026107 m15.0°C19 m
Aug 13, 202680 m14.6°C60 m
Aug 26, 2026117 m17.8°C94 m
Aug 29, 202646 m15.3°C34 m
Oct 12, 202627 m12.1°C24 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
Jul 18, 2026 — seafloor 77 m (measured), deepest dive 51 m (modelled)Jul 18Jul 28, 2026 — seafloor 77 m (measured), deepest dive 64 m (modelled)Jul 28Aug 1, 2026 — seafloor 95 m (measured), deepest dive 38 m (modelled)Aug 1Aug 6, 2026 — seafloor 15 m (measured), deepest dive 14 m (modelled)Aug 6Aug 7, 2026 — seafloor 107 m (measured), deepest dive 19 m (modelled)Aug 7Aug 13, 2026 — seafloor 80 m (measured), deepest dive 60 m (modelled)Aug 13Aug 26, 2026 — seafloor 117 m (measured), deepest dive 94 m (modelled)Aug 26Aug 29, 2026 — seafloor 46 m (measured), deepest dive 34 m (modelled)Aug 29Oct 12, 2026 — seafloor 27 m (measured), deepest dive 24 m (modelled)Oct 12

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

Dives

94 m
Deepest dive
3:57
Longest dive
120
Dives
19 m
Avg dive depth
9
Sightings
86
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010094 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (117 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 26, 2026

measured
Seafloor depth
117 m
Sea-surface temperature
17.8°C
Distance from shore
10.0 km

Across the residency · 9 sightings

measured
Seafloor depth
15 m – 117 m
Sea-surface temperature
12.0°C – 17.8°C
Distance from shore
2.0 km – 10.0 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 9 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.