Decimal – Residency
16th sighting in Gulf of Maine
Decimal @22531
Aug 9 – Sep 10, 2026 · Gulf of Maine
Gull Season on the Ledges
Sand ledges stacked with fish and a gull riding my back — good stretch.
50 m
Deepest dive
1:58
Longest dive
58
Dives
- Sightings
- 4
- Days between first and last sighting
- 32
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Aug 9, 2026 | 54 m | 21.6°C | 39 m |
| Aug 13, 2026 | 60 m | 21.9°C | 50 m |
| Sep 9, 2026 | 28 m | — | 24 m |
| Sep 10, 2026 | 27 m | 19.7°C | 25 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
50 m
Deepest dive
1:58
Longest dive
58
Dives
17 m
Avg dive depth
4
Sightings
32
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 (60 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 13, 2026
measured- Seafloor depth
- 60 m
- Sea-surface temperature
- 21.9°C
- Distance from shore
- 7.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 27 m – 60 m
- Sea-surface temperature
- 19.7°C – 21.9°C
- Distance from shore
- 7.0 km – 25.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.