Euphausiia – Residency
11th sighting in Chatham Strait
Euphausiia @16822
May 18 – Jul 21, 2026 · Chatham Strait
Chatham Strait, thick with herring
Green water, fat herring, my kind of long-running arrangement.
101 m
Deepest dive
4:16
Longest dive
30
Dives
- Sightings
- 3
- Days between first and last sighting
- 63
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| May 18, 2026 | 331 m | 7.8°C | 101 m |
| May 21, 2026 | 333 m | 8.0°C | 90 m |
| Jul 21, 2026 | 243 m | 13.1°C | 48 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
101 m
Deepest dive
4:16
Longest dive
30
Dives
28 m
Avg dive depth
3
Sightings
63
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 (331 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · May 18, 2026
measured- Seafloor depth
- 331 m
- Sea-surface temperature
- 7.8°C
- Distance from shore
- 3.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 243 m – 333 m
- Sea-surface temperature
- 7.8°C – 13.1°C
- Distance from shore
- 1.0 km – 4.0 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.