Rudolph – Residency
8th sighting in Chatham Strait
Rudolph @18129
May 29 – Sep 28, 2025 · Chatham Strait
Chatham Strait · May – Sep 2025
96 m
Deepest dive
4:31
Longest dive
55
Dives
- Sightings
- 4
- Days between first and last sighting
- 123
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| May 29, 2025 | 214 m | 8.6°C | 96 m |
| Jul 21, 2025 | 258 m | 13.0°C | 67 m |
| Jul 28, 2025 | 88 m | 13.1°C | 61 m |
| Sep 28, 2025 | 60 m | 12.2°C | 52 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
96 m
Deepest dive
4:31
Longest dive
55
Dives
27 m
Avg dive depth
4
Sightings
123
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 (214 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · May 29, 2025
measured- Seafloor depth
- 214 m
- Sea-surface temperature
- 8.6°C
- Distance from shore
- 1.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 60 m – 258 m
- Sea-surface temperature
- 8.6°C – 13.1°C
- Distance from shore
- 1.0 km – 3.0 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.