Ion – Residency
8th sighting in Salish Sea
Ion @22554
Aug 16 – 28, 2025 · Salish Sea
Salish Sea · Aug 2025
139 m
Deepest dive
3:54
Longest dive
32
Dives
- Sightings
- 3
- Days between first and last sighting
- 12
- Deepest dive on record
- 139 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) |
|---|---|---|---|
| Aug 16, 2025 | 184 m | — | 82 m |
| Aug 16, 2025 | 172 m | — | 139 m |
| Aug 28, 2025 | 125 m | — | 58 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
139 m
Deepest dive
3:54
Longest dive
32
Dives
33 m
Avg dive depth
3
Sightings
12
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 (172 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 16, 2025
measured- Seafloor depth
- 172 m
- Sea-surface temperature
- —
- Distance from shore
- 8.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 125 m – 184 m
- Sea-surface temperature
- —
- Distance from shore
- 3.0 km – 11.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.