SEAK-1811 – Residency
4th sighting in Lynn Canal & Stephens Passage
SEAK-1811 @17977
Sep 28 – 29, 2025 · Lynn Canal & Stephens Passage
Lynn Canal & Stephens Passage · Sep 2025
61 m
Deepest dive
2:45
Longest dive
25
Dives
- Sightings
- 3
- Days between first and last sighting
- 1
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Sep 28, 2025 | 60 m | — | 35 m |
| Sep 28, 2025 | 76 m | — | 61 m |
| Sep 29, 2025 | 208 m | — | 29 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
61 m
Deepest dive
2:45
Longest dive
25
Dives
21 m
Avg dive depth
3
Sightings
1
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 (76 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 28, 2025
measured- Seafloor depth
- 76 m
- Sea-surface temperature
- —
- Distance from shore
- 1.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 60 m – 208 m
- Sea-surface temperature
- —
- Distance from shore
- 1.0 km – 2.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.