SEAK-1539 – Residency
8th sighting in Au'au Channel
SEAK-1539 @23300
Dec 14, 2025 – Jan 14, 2026 · Au'au Channel
Au'au Channel · Dec 2025 – Jan 2026
66 m
Deepest dive
2:51
Longest dive
40
Dives
- Sightings
- 2
- Days between first and last sighting
- 31
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Dec 14, 2025 | 25 m | 26.2°C | 20 m |
| Jan 14, 2026 | 124 m | 25.7°C | 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
66 m
Deepest dive
2:51
Longest dive
40
Dives
16 m
Avg dive depth
2
Sightings
31
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 (124 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 14, 2026
measured- Seafloor depth
- 124 m
- Sea-surface temperature
- 25.7°C
- Distance from shore
- 2.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 25 m – 124 m
- Sea-surface temperature
- 25.7°C – 26.2°C
- Distance from shore
- 2.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.