Antediluvian – Residency
15th sighting in Chatham Strait
Antediluvian @5833
Jun 3 – Aug 21, 2023 · Chatham Strait
Chatham Strait · Jun – Aug 2023
90 m
Deepest dive
3:03
Longest dive
96
Dives
- Sightings
- 7
- Days between first and last sighting
- 79
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 3, 2023 | 85 m | 8.6°C | 60 m |
| Jun 8, 2023 | 72 m | 9.0°C | 58 m |
| Jun 9, 2023 | 37 m | 9.2°C | 33 m |
| Jun 22, 2023 | 229 m | 11.4°C | 43 m |
| Jun 22, 2023 | 351 m | 11.5°C | 90 m |
| Aug 18, 2023 | 35 m | 11.9°C | 29 m |
| Aug 21, 2023 | 73 m | 11.7°C | 66 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
90 m
Deepest dive
3:03
Longest dive
96
Dives
25 m
Avg dive depth
7
Sightings
79
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 (351 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jun 22, 2023
measured- Seafloor depth
- 351 m
- Sea-surface temperature
- 11.5°C
- Distance from shore
- 1.0 km
Across the residency · 7 sightings
measured- Seafloor depth
- 35 m – 351 m
- Sea-surface temperature
- 8.6°C – 11.9°C
- Distance from shore
- 1.0 km – 5.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 7 catalogued encounters on Happywhale.