Scratch – Residency
26th sighting in Chatham Strait
Scratch @5323
Jun 28 – Sep 11, 2024 · Chatham Strait
Chatham Strait · Jun – Sep 2024
147 m
Deepest dive
5:03
Longest dive
114
Dives
- Sightings
- 7
- 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) |
|---|---|---|---|
| Jun 28, 2024 | 134 m | 12.5°C | 25 m |
| Jul 12, 2024 | 181 m | 11.4°C | 147 m |
| Jul 19, 2024 | 532 m | 13.2°C | 106 m |
| Jul 30, 2024 | 299 m | 11.6°C | 110 m |
| Aug 7, 2024 | 47 m | 15.0°C | 38 m |
| Sep 5, 2024 | 45 m | 14.2°C | 30 m |
| Sep 11, 2024 | 160 m | 12.4°C | 116 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
147 m
Deepest dive
5:03
Longest dive
114
Dives
26 m
Avg dive depth
7
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 (181 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 12, 2024
measured- Seafloor depth
- 181 m
- Sea-surface temperature
- 11.4°C
- Distance from shore
- 1.0 km
Across the residency · 7 sightings
measured- Seafloor depth
- 45 m – 532 m
- Sea-surface temperature
- 11.4°C – 15.0°C
- Distance from shore
- 1.0 km – 3.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 7 catalogued encounters on Happywhale.