Sherona – Residency
20th sighting in Sitka Sound & Outer Baranof
Sherona @6441
Mar 27 – 29, 2026 · Sitka Sound & Outer Baranof
Chatham Strait, Present and Correct
Herring's back, so am I — cold green water, full mouth, no complaints.
67 m
Deepest dive
2:56
Longest dive
63
Dives
- Sightings
- 5
- Days between first and last sighting
- 2
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Mar 27, 2026 | 63 m | 4.9°C | 58 m |
| Mar 28, 2026 | 10 m | 4.9°C | 8 m |
| Mar 28, 2026 | 78 m | 5.7°C | 67 m |
| Mar 29, 2026 | 143 m | 5.0°C | 20 m |
| Mar 29, 2026 | 45 m | 4.8°C | 36 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
67 m
Deepest dive
2:56
Longest dive
63
Dives
17 m
Avg dive depth
5
Sightings
2
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 (78 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Mar 28, 2026
measured- Seafloor depth
- 78 m
- Sea-surface temperature
- 5.7°C
- Distance from shore
- 7.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 10 m – 143 m
- Sea-surface temperature
- 4.8°C – 5.7°C
- Distance from shore
- 1.0 km – 7.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.