Hecate – Residency
11th sighting in Salish Sea
Hecate @535
Aug 14 – Nov 12, 2025 · Salish Sea
Salish Sea · Aug – Nov 2025
93 m
Deepest dive
3:10
Longest dive
28
Dives
- Sightings
- 2
- Days between first and last sighting
- 90
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Aug 14, 2025 | 173 m | — | 93 m |
| Nov 12, 2025 | 100 m | — | 69 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
93 m
Deepest dive
3:10
Longest dive
28
Dives
30 m
Avg dive depth
2
Sightings
90
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 (173 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 14, 2025
measured- Seafloor depth
- 173 m
- Sea-surface temperature
- —
- Distance from shore
- 9.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 100 m – 173 m
- Sea-surface temperature
- —
- Distance from shore
- 3.0 km – 9.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.