Big Mama – Residency
64th sighting in Salish Sea
Big Mama @2120
May 2 – Oct 6, 2021 · Salish Sea
Summer Settlement
Five months in my favorite feeding spot, where the krill never disappoints.
164 m
Deepest dive
4:56
Longest dive
90
Dives
- Sightings
- 7
- Days between first and last sighting
- 158
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| May 2, 2021 | 169 m | 11.8°C | 72 m |
| May 31, 2021 | 194 m | 12.0°C | 164 m |
| Jun 5, 2021 | 110 m | 14.6°C | 84 m |
| Aug 8, 2021 | 60 m | 12.8°C | 45 m |
| Sep 3, 2021 | 126 m | 15.7°C | 80 m |
| Sep 24, 2021 | 127 m | 12.8°C | 53 m |
| Oct 6, 2021 | 125 m | 10.8°C | 93 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
164 m
Deepest dive
4:56
Longest dive
90
Dives
30 m
Avg dive depth
7
Sightings
158
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 (194 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · May 31, 2021
measured- Seafloor depth
- 194 m
- Sea-surface temperature
- 12.0°C
- Distance from shore
- 3.0 km
Across the residency · 7 sightings
measured- Seafloor depth
- 60 m – 194 m
- Sea-surface temperature
- 10.8°C – 15.7°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 7 catalogued encounters on Happywhale.