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

Quill – Residency

7th sighting in Gulf of Maine
Fluke of Quill
Quill Confirmed in the catalog @7725
Jun 27 – Oct 25, 2025 · Gulf of Maine

Gulf of Maine · Jun – Oct 2025

66 m
Deepest dive
2:57
Longest dive
31
Dives
Sightings
4
Days between first and last sighting
120

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 27, 2025183 m—66 m
Jul 5, 202571 m—42 m
Aug 15, 202584 m—59 m
Oct 25, 202539 m—35 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 27, 2025 — seafloor 183 m (measured), deepest dive 66 m (modelled)Jun 27Jul 5, 2025 — seafloor 71 m (measured), deepest dive 42 m (modelled)Jul 5Aug 15, 2025 — seafloor 84 m (measured), deepest dive 59 m (modelled)Aug 15Oct 25, 2025 — seafloor 39 m (measured), deepest dive 35 m (modelled)Oct 25

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

Dives

66 m
Deepest dive
2:57
Longest dive
31
Dives
23 m
Avg dive depth
4
Sightings
120
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010066 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (183 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 27, 2025

measured
Seafloor depth
183 m
Sea-surface temperature
—
Distance from shore
28.0 km

Across the residency · 4 sightings

measured
Seafloor depth
39 m – 183 m
Sea-surface temperature
—
Distance from shore
11.0 km – 28.0 km

Sources: GEBCO seafloor grid · 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.