Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Gulf of Maine

Touchdown – Residency

11th sighting in Gulf of Maine
Fluke of Touchdown
Touchdown Confirmed in the catalog @12734
Aug 13 – Sep 13, 2026 · Gulf of Maine

Sand Eels, Old Water

Whole late summer on my shelf, calves' good banks still working for me.

89 m
Deepest dive
3:45
Longest dive
49
Dives
Sightings
4
Days between first and last sighting
31
Deepest dive on record
89 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 13, 202692 m15.1°C71 m
Aug 21, 202680 m15.3°C70 m
Sep 13, 202698 m—74 m
Sep 13, 202698 m19.4°C89 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Aug 13, 2026 — seafloor 92 m (measured), deepest dive 71 m (modelled)Aug 13Aug 21, 2026 — seafloor 80 m (measured), deepest dive 70 m (modelled)Aug 21Sep 13, 2026 — seafloor 98 m (measured), deepest dive 74 m (modelled)Sep 13Sep 13, 2026 — seafloor 98 m (measured), deepest dive 89 m (modelled)Sep 13

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

89 m
Deepest dive
3:45
Longest dive
49
Dives
27 m
Avg dive depth
4
Sightings
31
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010089 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (98 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Sep 13, 2026

measured
Seafloor depth
98 m
Sea-surface temperature
19.4°C
Distance from shore
29.0 km

Across the residency · 4 sightings

measured
Seafloor depth
80 m – 98 m
Sea-surface temperature
15.1°C – 19.4°C
Distance from shore
3.0 km – 29.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 4 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.