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

Halo – Residency

8th sighting in Clarence Strait
Fluke of Halo
Halo Confirmed in the catalog @24665
Jun 29 – Oct 31, 2023 · Clarence Strait

Clarence Strait · Jun – Oct 2023

82 m
Deepest dive
3:28
Longest dive
40
Dives
Sightings
5
Days between first and last sighting
124

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 29, 2023181 m—64 m
Aug 28, 202327 m—22 m
Sep 19, 202336 m—26 m
Sep 23, 2023294 m—82 m
Oct 31, 202398 m—66 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 29, 2023 — seafloor 181 m (measured), deepest dive 64 m (modelled)Jun 29Aug 28, 2023 — seafloor 27 m (measured), deepest dive 22 m (modelled)Aug 28Sep 19, 2023 — seafloor 36 m (measured), deepest dive 26 m (modelled)Sep 19Sep 23, 2023 — seafloor 294 m (measured), deepest dive 82 m (modelled)Sep 23Oct 31, 2023 — seafloor 98 m (measured), deepest dive 66 m (modelled)Oct 31

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

Dives

82 m
Deepest dive
3:28
Longest dive
40
Dives
22 m
Avg dive depth
5
Sightings
124
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010082 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (294 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 23, 2023

measured
Seafloor depth
294 m
Sea-surface temperature
—
Distance from shore
1.0 km

Across the residency · 5 sightings

measured
Seafloor depth
27 m – 294 m
Sea-surface temperature
—
Distance from shore
1.0 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.