Sherwina – Residency
18th sighting in Salish Sea
Sherwina @11390
Sep 21 – Oct 5, 2025 · Salish Sea
Salish Sea · Sep – Oct 2025
124 m
Deepest dive
5:34
Longest dive
23
Dives
- Sightings
- 2
- Days between first and last sighting
- 13
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Sep 21, 2025 | 247 m | 12.8°C | 33 m |
| Oct 5, 2025 | 140 m | 13.5°C | 124 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
124 m
Deepest dive
5:34
Longest dive
23
Dives
28 m
Avg dive depth
2
Sightings
13
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 (140 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Oct 5, 2025
measured- Seafloor depth
- 140 m
- Sea-surface temperature
- 13.5°C
- Distance from shore
- 1.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 140 m – 247 m
- Sea-surface temperature
- 12.8°C – 13.5°C
- Distance from shore
- 1.0 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.