Antediluvian – Residency
17th sighting in Chatham Strait
Antediluvian @5833
Jun 29 – Aug 27, 2024 · Chatham Strait
Chatham Strait · Jun – Aug 2024
172 m
Deepest dive
5:21
Longest dive
61
Dives
- Sightings
- 4
- Days between first and last sighting
- 58
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 29, 2024 | 334 m | 10.3°C | 71 m |
| Jul 22, 2024 | 305 m | 13.1°C | 172 m |
| Aug 5, 2024 | 104 m | 14.3°C | 52 m |
| Aug 27, 2024 | 2 m | 11.5°C | 2 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
172 m
Deepest dive
5:21
Longest dive
61
Dives
25 m
Avg dive depth
4
Sightings
58
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 (305 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 22, 2024
measured- Seafloor depth
- 305 m
- Sea-surface temperature
- 13.1°C
- Distance from shore
- 2.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 2 m – 334 m
- Sea-surface temperature
- 10.3°C – 14.3°C
- Distance from shore
- 2.0 km – 4.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.