Hemlock – Residency
37th sighting in Salish Sea
Hemlock @5001
Jul 18 – Oct 2, 2021 · Salish Sea
Salish Sea · Jul – Oct 2021
121 m
Deepest dive
3:44
Longest dive
46
Dives
- Sightings
- 4
- Days between first and last sighting
- 75
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 18, 2021 | 158 m | 11.6°C | 51 m |
| Aug 2, 2021 | 173 m | 13.4°C | 101 m |
| Sep 14, 2021 | 59 m | 10.8°C | 26 m |
| Oct 2, 2021 | 180 m | 10.6°C | 121 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
121 m
Deepest dive
3:44
Longest dive
46
Dives
28 m
Avg dive depth
4
Sightings
75
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 · Oct 2, 2021
measured- Seafloor depth
- 180 m
- Sea-surface temperature
- 10.6°C
- Distance from shore
- 10.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 59 m – 180 m
- Sea-surface temperature
- 10.6°C – 13.4°C
- Distance from shore
- 3.0 km – 10.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.