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

HIHWNMS-2021-2-5_G04A01 – Residency

10th sighting in Au'au Channel
Fluke of HIHWNMS-2021-2-5_G04A01
HIHWNMS-2021-2-5_G04A01 Confirmed in the catalog @54426
Dec 29, 2025 – Jan 9, 2026 · Au'au Channel

Au'au Channel · Dec 2025 – Jan 2026

75 m
Deepest dive
2:56
Longest dive
30
Dives
Sightings
4
Days between first and last sighting
11
Deepest dive on record
75 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 29, 2025131 m—75 m
Dec 31, 202560 m—17 m
Dec 31, 20251,139 m—64 m
Jan 9, 202672 m25.5°C36 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 29, 2025 — seafloor 131 m (measured), deepest dive 75 m (modelled)Dec 29Dec 31, 2025 — seafloor 60 m (measured), deepest dive 17 m (modelled)Dec 31Dec 31, 2025 — seafloor 1,139 m (measured), deepest dive 64 m (modelled)Dec 31Jan 9, 2026 — seafloor 72 m (measured), deepest dive 36 m (modelled)Jan 9

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

Dives

75 m
Deepest dive
2:56
Longest dive
30
Dives
18 m
Avg dive depth
4
Sightings
11
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010075 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (131 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 · Dec 29, 2025

measured
Seafloor depth
131 m
Sea-surface temperature
—
Distance from shore
6.0 km

Across the residency · 4 sightings

measured
Seafloor depth
60 m – 1,139 m
Sea-surface temperature
25.5°C
Distance from shore
4.0 km – 6.0 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 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.