Lesser – Residency
20th sighting in Au'au Channel
Lesser @6609
Dec 19, 2025 – Jan 10, 2026 · Au'au Channel
Au'au Channel · Dec 2025 – Jan 2026
56 m
Deepest dive
2:53
Longest dive
56
Dives
- Sightings
- 6
- Days between first and last sighting
- 22
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Dec 19, 2025 | 18 m | 25.9°C | 16 m |
| Jan 1, 2026 | 36 m | 25.8°C | 22 m |
| Jan 1, 2026 | 16 m | 25.6°C | 13 m |
| Jan 8, 2026 | 25 m | 25.5°C | 20 m |
| Jan 9, 2026 | 19 m | 25.5°C | 14 m |
| Jan 10, 2026 | 82 m | 25.8°C | 56 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
56 m
Deepest dive
2:53
Longest dive
56
Dives
13 m
Avg dive depth
6
Sightings
22
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 (82 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 10, 2026
measured- Seafloor depth
- 82 m
- Sea-surface temperature
- 25.8°C
- Distance from shore
- 5.0 km
Across the residency · 6 sightings
measured- Seafloor depth
- 16 m – 82 m
- Sea-surface temperature
- 25.5°C – 25.9°C
- Distance from shore
- 2.0 km – 5.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 6 catalogued encounters on Happywhale.