SEAK-5543 – Residency
4th sighting in Chatham Strait
SEAK-5543 @26744
Jun 19 – Jul 4, 2026 · Chatham Strait
Chatham Strait, right on cue
Herring's running thick and I found the crowd fast.
141 m
Deepest dive
4:50
Longest dive
16
Dives
- Sightings
- 2
- Days between first and last sighting
- 15
- Deepest dive on record
- 141 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 19, 2026 | 378 m | 9.7°C | 141 m |
| Jul 4, 2026 | 35 m | 11.3°C | 23 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
141 m
Deepest dive
4:50
Longest dive
16
Dives
37 m
Avg dive depth
2
Sightings
15
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 (378 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jun 19, 2026
measured- Seafloor depth
- 378 m
- Sea-surface temperature
- 9.7°C
- Distance from shore
- 5.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 35 m – 378 m
- Sea-surface temperature
- 9.7°C – 11.3°C
- Distance from shore
- 2.0 km – 5.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.