Antediluvian – Residency
7th sighting in Chatham Strait
Antediluvian @5833
Jul 25 – Aug 14, 2021 · Chatham Strait
Chatham Strait · Jul – Aug 2021
62 m
Deepest dive
2:31
Longest dive
50
Dives
- Sightings
- 6
- Days between first and last sighting
- 21
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 25, 2021 | 69 m | 12.0°C | 47 m |
| Jul 26, 2021 | 84 m | 12.9°C | 62 m |
| Jul 28, 2021 | 48 m | 12.7°C | 23 m |
| Aug 5, 2021 | 138 m | 14.1°C | 42 m |
| Aug 14, 2021 | 204 m | 10.1°C | 46 m |
| Aug 14, 2021 | 65 m | 10.0°C | 55 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
62 m
Deepest dive
2:31
Longest dive
50
Dives
22 m
Avg dive depth
6
Sightings
21
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 (84 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 26, 2021
measured- Seafloor depth
- 84 m
- Sea-surface temperature
- 12.9°C
- Distance from shore
- 1.0 km
Across the residency · 6 sightings
measured- Seafloor depth
- 48 m – 204 m
- Sea-surface temperature
- 10.0°C – 14.1°C
- Distance from shore
- 1.0 km – 8.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 6 catalogued encounters on Happywhale.