2017 calf of Hydra – Residency
18th sighting in Salish Sea
2017 calf of Hydra @11070
Jun 28 – Sep 13, 2025 · Salish Sea
Salish Sea · Jun – Sep 2025
153 m
Deepest dive
5:33
Longest dive
117
Dives
- Sightings
- 8
- Days between first and last sighting
- 77
- Deepest dive on record
- 153 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 28, 2025 | 108 m | — | 40 m |
| Jun 28, 2025 | 99 m | — | 45 m |
| Jun 29, 2025 | 101 m | — | 70 m |
| Jun 29, 2025 | 59 m | — | 27 m |
| Jun 30, 2025 | 100 m | — | 70 m |
| Jul 6, 2025 | 127 m | — | 106 m |
| Jul 23, 2025 | 180 m | — | 153 m |
| Sep 13, 2025 | 191 m | — | 37 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
153 m
Deepest dive
5:33
Longest dive
117
Dives
24 m
Avg dive depth
8
Sightings
77
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 (180 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 23, 2025
measured- Seafloor depth
- 180 m
- Sea-surface temperature
- —
- Distance from shore
- 9.0 km
Across the residency · 8 sightings
measured- Seafloor depth
- 59 m – 191 m
- Sea-surface temperature
- —
- Distance from shore
- 3.0 km – 12.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 8 catalogued encounters on Happywhale.