Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Au'au Channel

HI19-0090 – Residency

11th sighting in Au'au Channel
Fluke of HI19-0090
HI19-0090 Confirmed in the catalog @33424
Dec 23, 2025 – Jan 27, 2026 · Au'au Channel

Au'au Channel · Dec 2025 – Jan 2026

90 m
Deepest dive
3:07
Longest dive
70
Dives
Sightings
4
Days between first and last sighting
35
Deepest dive on record
90 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 23, 202554 m—36 m
Jan 6, 2026163 m25.5°C90 m
Jan 23, 202653 m25.1°C47 m
Jan 27, 202642 m25.5°C38 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
Dec 23, 2025 — seafloor 54 m (measured), deepest dive 36 m (modelled)Dec 23Jan 6, 2026 — seafloor 163 m (measured), deepest dive 90 m (modelled)Jan 6Jan 23, 2026 — seafloor 53 m (measured), deepest dive 47 m (modelled)Jan 23Jan 27, 2026 — seafloor 42 m (measured), deepest dive 38 m (modelled)Jan 27

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

Dives

90 m
Deepest dive
3:07
Longest dive
70
Dives
24 m
Avg dive depth
4
Sightings
35
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010090 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (163 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 · Jan 6, 2026

measured
Seafloor depth
163 m
Sea-surface temperature
25.5°C
Distance from shore
7.0 km

Across the residency · 4 sightings

measured
Seafloor depth
42 m – 163 m
Sea-surface temperature
25.1°C – 25.5°C
Distance from shore
2.0 km – 7.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · 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.