Brandon – Residency
15th sighting in Prince William Sound
Brandon @15506
Aug 17 – Sep 18, 2025 · Prince William Sound
Prince William Sound · Aug – Sep 2025
80 m
Deepest dive
2:47
Longest dive
31
Dives
- Sightings
- 3
- 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 17, 2025 | 584 m | 14.3°C | 35 m |
| Sep 17, 2025 | 154 m | 12.0°C | 48 m |
| Sep 18, 2025 | 107 m | 11.8°C | 80 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
80 m
Deepest dive
2:47
Longest dive
31
Dives
21 m
Avg dive depth
3
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 (107 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 18, 2025
measured- Seafloor depth
- 107 m
- Sea-surface temperature
- 11.8°C
- Distance from shore
- —
Across the residency · 3 sightings
measured- Seafloor depth
- 107 m – 584 m
- Sea-surface temperature
- 11.8°C – 14.3°C
- Distance from shore
- 1.0 km – 6.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.