Heterotheca – Residency
5th sighting in Au'au Channel
Heterotheca @12799
Nov 23, 2025 – Jan 25, 2026 · Au'au Channel
Au'au Channel · Nov 2025 – Jan 2026
63 m
Deepest dive
2:23
Longest dive
24
Dives
- Sightings
- 3
- Days between first and last sighting
- 63
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Nov 23, 2025 | 86 m | 26.3°C | 63 m |
| Dec 6, 2025 | 38 m | 26.0°C | 32 m |
| Jan 25, 2026 | 16 m | 25.4°C | 12 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
63 m
Deepest dive
2:23
Longest dive
24
Dives
20 m
Avg dive depth
3
Sightings
63
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 (86 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Nov 23, 2025
measured- Seafloor depth
- 86 m
- Sea-surface temperature
- 26.3°C
- Distance from shore
- 5.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 16 m – 86 m
- Sea-surface temperature
- 25.4°C – 26.3°C
- Distance from shore
- 3.0 km – 5.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.