Ridgeline – Residency
13th sighting in Gulf of Maine
Ridgeline @12737
Jun 11 – Sep 24, 2023 · Gulf of Maine
Gulf of Maine · Jun – Sep 2023
145 m
Deepest dive
5:39
Longest dive
82
Dives
- Sightings
- 8
- Days between first and last sighting
- 105
- Deepest dive on record
- 145 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 11, 2023 | 100 m | 9.4°C | 82 m |
| Jul 12, 2023 | 119 m | 13.7°C | 71 m |
| Jul 20, 2023 | 128 m | 11.6°C | 49 m |
| Jul 23, 2023 | 45 m | 15.4°C | 40 m |
| Jul 29, 2023 | 174 m | 16.8°C | 108 m |
| Jul 30, 2023 | 166 m | 15.9°C | 145 m |
| Aug 7, 2023 | 102 m | 14.6°C | 45 m |
| Sep 24, 2023 | 111 m | 12.0°C | 69 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
145 m
Deepest dive
5:39
Longest dive
82
Dives
24 m
Avg dive depth
8
Sightings
105
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 (166 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 30, 2023
measured- Seafloor depth
- 166 m
- Sea-surface temperature
- 15.9°C
- Distance from shore
- 13.0 km
Across the residency · 8 sightings
measured- Seafloor depth
- 45 m – 174 m
- Sea-surface temperature
- 9.4°C – 16.8°C
- Distance from shore
- 5.0 km – 22.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 8 catalogued encounters on Happywhale.