HNC131 – Residency
1st sighting in Tonga
HNC131 @11302
Aug 29, 1999 · Tonga
Tonga · Aug 1999
69 m
Deepest dive
2:31
Longest dive
5
Dives
- Sightings
- 1
- Days between first and last sighting
- Same day
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Aug 29, 1999 | 314 m | — | 69 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
69 m
Deepest dive
2:31
Longest dive
5
Dives
27 m
Avg dive depth
1
Sightings
Same day
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 (314 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 29, 1999
measured- Seafloor depth
- 314 m
- Sea-surface temperature
- —
- Distance from shore
- —
Sources: GEBCO seafloor grid
Source records
This activity is assembled from 1 catalogued encounter on Happywhale.