Scratch – Residency
4th sighting in Chatham Strait
Scratch @5323
Jul 17 – Aug 8, 2018 · Chatham Strait
Chatham Strait · Jul – Aug 2018
188 m
Deepest dive
6:50
Longest dive
22
Dives
- Sightings
- 2
- Days between first and last sighting
- 22
- Deepest dive on record
- 188 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) |
|---|---|---|---|
| Jul 17, 2018 | 160 m | 12.2°C | 40 m |
| Aug 8, 2018 | 223 m | 13.1°C | 188 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
188 m
Deepest dive
6:50
Longest dive
22
Dives
28 m
Avg dive depth
2
Sightings
22
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 (223 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 8, 2018
measured- Seafloor depth
- 223 m
- Sea-surface temperature
- 13.1°C
- Distance from shore
- 2.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 160 m – 223 m
- Sea-surface temperature
- 12.2°C – 13.1°C
- Distance from shore
- 2.0 km – 3.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.