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

Partition – Residency

16th sighting in Gulf of Maine
Fluke of Partition
Partition Confirmed in the catalog @7339
Jun 24 – Jul 29, 2026 · Gulf of Maine

This Cold Shelf, Every Summer

Herring called, I came, land stayed a grey line where it belongs.

39 m
Deepest dive
1:29
Longest dive
34
Dives
Sightings
3
Days between first and last sighting
35

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 24, 202650 m11.3°C39 m
Jun 28, 2026199 m12.1°C32 m
Jul 29, 2026102 m15.2°C33 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
Jun 24, 2026 — seafloor 50 m (measured), deepest dive 39 m (modelled)Jun 24Jun 28, 2026 — seafloor 199 m (measured), deepest dive 32 m (modelled)Jun 28Jul 29, 2026 — seafloor 102 m (measured), deepest dive 33 m (modelled)Jul 29

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

Dives

39 m
Deepest dive
1:29
Longest dive
34
Dives
17 m
Avg dive depth
3
Sightings
35
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255039 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (50 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 · Jun 24, 2026

measured
Seafloor depth
50 m
Sea-surface temperature
11.3°C
Distance from shore
22.0 km

Across the residency · 3 sightings

measured
Seafloor depth
50 m – 199 m
Sea-surface temperature
11.3°C – 15.2°C
Distance from shore
9.0 km – 22.0 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 3 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.