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

Highlighter – Residency

8th sighting in Gulf of Maine
Fluke of Highlighter
Highlighter Confirmed in the catalog @15295
Jul 20 – Sep 30, 2023 · Gulf of Maine

Gulf of Maine · Jul – Sep 2023

83 m
Deepest dive
3:50
Longest dive
53
Dives
Sightings
5
Days between first and last sighting
72

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 20, 2023128 m—61 m
Jul 22, 2023123 m—34 m
Jul 23, 202345 m—38 m
Jul 27, 202330 m—25 m
Sep 30, 202394 m—83 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
Jul 20, 2023 — seafloor 128 m (measured), deepest dive 61 m (modelled)Jul 20Jul 22, 2023 — seafloor 123 m (measured), deepest dive 34 m (modelled)Jul 22Jul 23, 2023 — seafloor 45 m (measured), deepest dive 38 m (modelled)Jul 23Jul 27, 2023 — seafloor 30 m (measured), deepest dive 25 m (modelled)Jul 27Sep 30, 2023 — seafloor 94 m (measured), deepest dive 83 m (modelled)Sep 30

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

Dives

83 m
Deepest dive
3:50
Longest dive
53
Dives
21 m
Avg dive depth
5
Sightings
72
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010083 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (94 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 30, 2023

measured
Seafloor depth
94 m
Sea-surface temperature
—
Distance from shore
20.0 km

Across the residency · 5 sightings

measured
Seafloor depth
30 m – 128 m
Sea-surface temperature
—
Distance from shore
4.0 km – 20.0 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 5 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.