SEAK-5274 – Residency
2nd sighting in Lynn Canal & Stephens Passage
SEAK-5274 @37068
Jul 16 – Sep 13, 2026 · Lynn Canal & Stephens Passage
Chatham Strait, Right on Time
Herring's running deep and so am I — Chatham never disappoints.
102 m
Deepest dive
3:02
Longest dive
18
Dives
- Sightings
- 3
- Days between first and last sighting
- 59
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 16, 2026 | 204 m | 13.0°C | 102 m |
| Jul 22, 2026 | 72 m | 13.3°C | 15 m |
| Sep 13, 2026 | 15 m | 12.1°C | 12 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
102 m
Deepest dive
3:02
Longest dive
18
Dives
17 m
Avg dive depth
3
Sightings
59
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 (204 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 16, 2026
measured- Seafloor depth
- 204 m
- Sea-surface temperature
- 13.0°C
- Distance from shore
- 2.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 15 m – 204 m
- Sea-surface temperature
- 12.1°C – 13.3°C
- Distance from shore
- 1.0 km – 2.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.