Twyla – Residency
8th sighting in Chatham Strait
Twyla @6414
Jul 8 – Sep 29, 2009 · Chatham Strait
Chatham Strait · Jul – Sep 2009
70 m
Deepest dive
2:52
Longest dive
19
Dives
- Sightings
- 3
- Days between first and last sighting
- 83
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 8, 2009 | 88 m | 11.5°C | 53 m |
| Jul 9, 2009 | 88 m | 11.7°C | 70 m |
| Sep 29, 2009 | 152 m | 8.5°C | 45 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
70 m
Deepest dive
2:52
Longest dive
19
Dives
29 m
Avg dive depth
3
Sightings
83
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 (88 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 9, 2009
measured- Seafloor depth
- 88 m
- Sea-surface temperature
- 11.7°C
- Distance from shore
- 2.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 88 m – 152 m
- Sea-surface temperature
- 8.5°C – 11.7°C
- Distance from shore
- 1.0 km – 2.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.