BCY0637 – Residency
5th sighting in Au'au Channel
BCY0637 @75172
Mar 4 – 8, 2026 · Au'au Channel
Au'au Channel · Mar 2026
111 m
Deepest dive
4:21
Longest dive
28
Dives
- Sightings
- 3
- Days between first and last sighting
- 4
- Deepest dive on record
- 111 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) |
|---|---|---|---|
| Mar 4, 2026 | 52 m | 24.9°C | 47 m |
| Mar 4, 2026 | 52 m | 24.7°C | 42 m |
| Mar 8, 2026 | 1,139 m | 24.9°C | 111 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
111 m
Deepest dive
4:21
Longest dive
28
Dives
24 m
Avg dive depth
3
Sightings
4
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 (1,139 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Mar 8, 2026
measured- Seafloor depth
- 1,139 m
- Sea-surface temperature
- 24.9°C
- Distance from shore
- 5.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 52 m – 1,139 m
- Sea-surface temperature
- 24.7°C – 24.9°C
- Distance from shore
- 3.0 km – 5.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.