HI23_0156 – Residency
3rd sighting in Au'au Channel
HI23_0156 @140396
Dec 3 – 12, 2025 · Au'au Channel
Au'au Channel · Dec 2025
85 m
Deepest dive
4:56
Longest dive
36
Dives
- Sightings
- 2
- Days between first and last sighting
- 9
- Deepest dive on record
- 85 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) |
|---|---|---|---|
| Dec 3, 2025 | 178 m | — | 85 m |
| Dec 12, 2025 | 79 m | — | 66 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
85 m
Deepest dive
4:56
Longest dive
36
Dives
21 m
Avg dive depth
2
Sightings
9
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 (178 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Dec 3, 2025
measured- Seafloor depth
- 178 m
- Sea-surface temperature
- —
- Distance from shore
- 8.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 79 m – 178 m
- Sea-surface temperature
- —
- Distance from shore
- 5.0 km – 8.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.