Sherona – Residency
7th sighting in Chatham Strait
Sherona @6441
Jul 19 – 29, 2021 · Chatham Strait
Chatham Strait · Jul 2021
180 m
Deepest dive
6:05
Longest dive
62
Dives
- Sightings
- 4
- Days between first and last sighting
- 10
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 19, 2021 | 285 m | 12.7°C | 180 m |
| Jul 25, 2021 | 84 m | 12.0°C | 76 m |
| Jul 25, 2021 | 165 m | 12.1°C | 36 m |
| Jul 29, 2021 | 81 m | 13.8°C | 49 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
180 m
Deepest dive
6:05
Longest dive
62
Dives
28 m
Avg dive depth
4
Sightings
10
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 (285 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 19, 2021
measured- Seafloor depth
- 285 m
- Sea-surface temperature
- 12.7°C
- Distance from shore
- 2.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 81 m – 285 m
- Sea-surface temperature
- 12.0°C – 13.8°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 4 catalogued encounters on Happywhale.