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

Halo – Residency

15th sighting in Clarence Strait
Fluke of Halo
Halo Confirmed in the catalog @24665
Jul 26 – Oct 15, 2024 · Clarence Strait

Clarence Strait · Jul – Oct 2024

67 m
Deepest dive
4:29
Longest dive
55
Dives
Sightings
8
Days between first and last sighting
81

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 26, 2024120 m—66 m
Aug 15, 202423 m—18 m
Aug 16, 2024117 m—64 m
Aug 17, 2024296 m—53 m
Aug 18, 202484 m—67 m
Sep 9, 2024128 m—35 m
Sep 17, 2024-45 m——
Oct 15, 2024-32 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 26, 2024 — seafloor 120 m (measured), deepest dive 66 m (modelled)Jul 26Aug 15, 2024 — seafloor 23 m (measured), deepest dive 18 m (modelled)Aug 15Aug 16, 2024 — seafloor 117 m (measured), deepest dive 64 m (modelled)Aug 16Aug 17, 2024 — seafloor 296 m (measured), deepest dive 53 m (modelled)Aug 17Aug 18, 2024 — seafloor 84 m (measured), deepest dive 67 m (modelled)Aug 18Sep 9, 2024 — seafloor 128 m (measured), deepest dive 35 m (modelled)Sep 9Sep 17, 2024 — seafloor -45 m (measured), deepest dive — (modelled)Sep 17Oct 15, 2024 — seafloor -32 m (measured), deepest dive — (modelled)Oct 15

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

Dives

67 m
Deepest dive
4:29
Longest dive
55
Dives
21 m
Avg dive depth
8
Sightings
81
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010067 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (84 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 · Aug 18, 2024

measured
Seafloor depth
84 m
Sea-surface temperature
—
Distance from shore
—

Across the residency · 8 sightings

measured
Seafloor depth
-45 m – 296 m
Sea-surface temperature
—
Distance from shore
1.0 km – 3.0 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 8 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.