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

Callahan – Residency

9th sighting in Clarence Strait
Fluke of Callahan
Callahan Confirmed in the catalog @53654
Aug 27 – Sep 10, 2026 · Clarence Strait

Early Autumn, Easy Water

Cold water, full belly, no company needed but my own.

62 m
Deepest dive
2:29
Longest dive
39
Dives
Sightings
3
Days between first and last sighting
14

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 27, 202697 m14.5°C62 m
Aug 28, 202632 m14.6°C28 m
Sep 10, 202639 m13.7°C32 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
Aug 27, 2026 — seafloor 97 m (measured), deepest dive 62 m (modelled)Aug 27Aug 28, 2026 — seafloor 32 m (measured), deepest dive 28 m (modelled)Aug 28Sep 10, 2026 — seafloor 39 m (measured), deepest dive 32 m (modelled)Sep 10

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

Dives

62 m
Deepest dive
2:29
Longest dive
39
Dives
18 m
Avg dive depth
3
Sightings
14
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010062 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (97 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 27, 2026

measured
Seafloor depth
97 m
Sea-surface temperature
14.5°C
Distance from shore
1.0 km

Across the residency · 3 sightings

measured
Seafloor depth
32 m – 97 m
Sea-surface temperature
13.7°C – 14.6°C
Distance from shore
1.0 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.