Gremlin – Residency
10th sighting in Gulf of MaineGremlin @7694
Jul 11 – Oct 12, 2026 · Gulf of Maine
Herring Weather, Every Day
Green water, full belly, cameras clicking away — good stretch.
69 m
Deepest dive
3:16
Longest dive
122
Dives
- Sightings
- 9
- Days between first and last sighting
- 93
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 11, 2026 | 51 m | 14.4°C | 23 m |
| Jul 11, 2026 | 42 m | 14.5°C | 34 m |
| Jul 12, 2026 | 52 m | 14.4°C | 44 m |
| Jul 15, 2026 | 50 m | 14.2°C | 44 m |
| Aug 7, 2026 | 107 m | 15.0°C | 45 m |
| Aug 9, 2026 | 25 m | 17.8°C | 19 m |
| Aug 21, 2026 | 80 m | 15.3°C | 69 m |
| Sep 26, 2026 | 86 m | — | 63 m |
| Oct 12, 2026 | 27 m | — | 22 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
69 m
Deepest dive
3:16
Longest dive
122
Dives
18 m
Avg dive depth
9
Sightings
93
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 (80 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 21, 2026
measured- Seafloor depth
- 80 m
- Sea-surface temperature
- 15.3°C
- Distance from shore
- 3.0 km
Across the residency · 9 sightings
measured- Seafloor depth
- 25 m – 107 m
- Sea-surface temperature
- 14.2°C – 17.8°C
- Distance from shore
- 2.0 km – 9.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 9 catalogued encounters on Happywhale.