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

HW-MN0445056 – Residency

8th sighting in Au'au Channel
Fluke of HW-MN0445056
HW-MN0445056 Confirmed in the catalog @136616
Dec 27, 2025 – Mar 8, 2026 · Au'au Channel

Au'au Channel · Dec 2025 – Mar 2026

157 m
Deepest dive
7:26
Longest dive
57
Dives
Sightings
5
Days between first and last sighting
71
Deepest dive on record
157 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 27, 202522 m—20 m
Dec 29, 202553 m—33 m
Jan 6, 20261,139 m25.5°C157 m
Feb 28, 202622 m24.4°C17 m
Mar 8, 202645 m24.6°C34 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 27, 2025 — seafloor 22 m (measured), deepest dive 20 m (modelled)Dec 27Dec 29, 2025 — seafloor 53 m (measured), deepest dive 33 m (modelled)Dec 29Jan 6, 2026 — seafloor 1,139 m (measured), deepest dive 157 m (modelled)Jan 6Feb 28, 2026 — seafloor 22 m (measured), deepest dive 17 m (modelled)Feb 28Mar 8, 2026 — seafloor 45 m (measured), deepest dive 34 m (modelled)Mar 8

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

Dives

157 m
Deepest dive
7:26
Longest dive
57
Dives
18 m
Avg dive depth
5
Sightings
71
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200157 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (1,139 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
1,139 m
Sea-surface temperature
25.5°C
Distance from shore
5.0 km

Across the residency · 5 sightings

measured
Seafloor depth
22 m – 1,139 m
Sea-surface temperature
24.4°C – 25.5°C
Distance from shore
2.0 km – 5.0 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 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.