Gregoriana – Residency
5th sighting in Sitka Sound & Outer Baranof
Gregoriana @13319
Jun 4 – 12, 2026 · Sitka Sound & Outer Baranof
Chatham Strait, June Shift
Cold water, good krill, boats humming — this is the life.
108 m
Deepest dive
5:15
Longest dive
48
Dives
- Sightings
- 5
- Days between first and last sighting
- 7
- Deepest dive on record
- 108 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 4, 2026 | 125 m | 10.3°C | 108 m |
| Jun 7, 2026 | 32 m | 10.4°C | 26 m |
| Jun 9, 2026 | 32 m | 10.2°C | 26 m |
| Jun 11, 2026 | 42 m | 10.3°C | 35 m |
| Jun 12, 2026 | 78 m | 10.3°C | 63 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
108 m
Deepest dive
5:15
Longest dive
48
Dives
22 m
Avg dive depth
5
Sightings
7
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 (125 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jun 4, 2026
measured- Seafloor depth
- 125 m
- Sea-surface temperature
- 10.3°C
- Distance from shore
- 4.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 32 m – 125 m
- Sea-surface temperature
- 10.2°C – 10.4°C
- Distance from shore
- 2.0 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.