Highlighter – Residency
18th sighting in Gulf of Maine
Highlighter @15295
Jul 6 – Sep 26, 2025 · Gulf of Maine
Gulf of Maine · Jul – Sep 2025
105 m
Deepest dive
4:17
Longest dive
109
Dives
- Sightings
- 11
- Days between first and last sighting
- 83
- Deepest dive on record
- 105 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 6, 2025 | 98 m | — | 82 m |
| Aug 13, 2025 | 40 m | — | 27 m |
| Aug 16, 2025 | 66 m | — | 51 m |
| Aug 19, 2025 | 95 m | — | 75 m |
| Aug 20, 2025 | 102 m | — | 47 m |
| Aug 28, 2025 | 145 m | — | 103 m |
| Aug 31, 2025 | 129 m | — | 62 m |
| Sep 1, 2025 | 145 m | — | 97 m |
| Sep 1, 2025 | 98 m | — | 89 m |
| Sep 1, 2025 | 118 m | — | 105 m |
| Sep 26, 2025 | 75 m | — | 57 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
105 m
Deepest dive
4:17
Longest dive
109
Dives
29 m
Avg dive depth
11
Sightings
83
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 (118 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 1, 2025
measured- Seafloor depth
- 118 m
- Sea-surface temperature
- —
- Distance from shore
- 8.0 km
Across the residency · 11 sightings
measured- Seafloor depth
- 40 m – 145 m
- Sea-surface temperature
- —
- Distance from shore
- 5.0 km – 51.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 11 catalogued encounters on Happywhale.