Ridgeline – Residency
23rd sighting in Gulf of Maine
Ridgeline @12737
Jul 4 – Sep 2, 2025 · Gulf of Maine
Gulf of Maine · Jul – Sep 2025
91 m
Deepest dive
4:58
Longest dive
128
Dives
- Sightings
- 10
- Days between first and last sighting
- 60
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 4, 2025 | 104 m | 15.2°C | 91 m |
| Jul 5, 2025 | 104 m | 14.9°C | 27 m |
| Jul 18, 2025 | 96 m | 14.3°C | 54 m |
| Jul 19, 2025 | 104 m | 14.2°C | 71 m |
| Jul 23, 2025 | 37 m | 13.2°C | 32 m |
| Aug 20, 2025 | 102 m | 16.0°C | 53 m |
| Aug 23, 2025 | 95 m | 15.6°C | 71 m |
| Aug 31, 2025 | 146 m | 12.8°C | 79 m |
| Sep 1, 2025 | 80 m | 13.0°C | 73 m |
| Sep 2, 2025 | 146 m | 13.7°C | 70 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
91 m
Deepest dive
4:58
Longest dive
128
Dives
26 m
Avg dive depth
10
Sightings
60
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (104 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 4, 2025
measured- Seafloor depth
- 104 m
- Sea-surface temperature
- 15.2°C
- Distance from shore
- 13.0 km
Across the residency · 10 sightings
measured- Seafloor depth
- 37 m – 146 m
- Sea-surface temperature
- 12.8°C – 16.0°C
- Distance from shore
- 4.0 km – 20.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 10 catalogued encounters on Happywhale.