Dross – Residency
49th sighting in Gulf of Maine
Dross @15615
Jun 3 – Sep 20, 2025 · Gulf of Maine
Gulf of Maine · Jun – Sep 2025
57 m
Deepest dive
2:39
Longest dive
99
Dives
- Sightings
- 8
- Days between first and last sighting
- 110
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 3, 2025 | 52 m | 12.0°C | 45 m |
| Jul 13, 2025 | 59 m | 19.0°C | 51 m |
| Aug 9, 2025 | 62 m | 20.4°C | 39 m |
| Aug 27, 2025 | 57 m | 18.6°C | 30 m |
| Sep 6, 2025 | 33 m | 19.6°C | 30 m |
| Sep 6, 2025 | 62 m | 19.6°C | 55 m |
| Sep 13, 2025 | 98 m | 17.7°C | 57 m |
| Sep 20, 2025 | 54 m | 18.0°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
57 m
Deepest dive
2:39
Longest dive
99
Dives
20 m
Avg dive depth
8
Sightings
110
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 (98 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 13, 2025
measured- Seafloor depth
- 98 m
- Sea-surface temperature
- 17.7°C
- Distance from shore
- 29.0 km
Across the residency · 8 sightings
measured- Seafloor depth
- 33 m – 98 m
- Sea-surface temperature
- 12.0°C – 20.4°C
- Distance from shore
- 8.0 km – 29.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 8 catalogued encounters on Happywhale.