Mosaic – Residency
10th sighting in Au'au Channel
Mosaic @5660
Dec 27 – 31, 2025 · Au'au Channel
Au'au Channel · Dec 2025
124 m
Deepest dive
4:52
Longest dive
44
Dives
- Sightings
- 5
- Days between first and last sighting
- 4
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Dec 27, 2025 | 62 m | 26.0°C | 25 m |
| Dec 28, 2025 | 1,583 m | 25.9°C | 73 m |
| Dec 31, 2025 | 1,139 m | 25.6°C | 124 m |
| Dec 31, 2025 | 60 m | 25.6°C | 44 m |
| Dec 31, 2025 | 757 m | 25.6°C | 123 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
124 m
Deepest dive
4:52
Longest dive
44
Dives
26 m
Avg dive depth
5
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 · Dec 31, 2025
measured- Seafloor depth
- 1,139 m
- Sea-surface temperature
- 25.6°C
- Distance from shore
- 5.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 60 m – 1,583 m
- Sea-surface temperature
- 25.6°C – 26.0°C
- Distance from shore
- 5.0 km – 7.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.