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

HW-MN0444514 – Residency

5th sighting in Au'au Channel
Fluke of HW-MN0444514
HW-MN0444514 Confirmed in the catalog @113542
Nov 30 – Dec 28, 2025 · Au'au Channel

Au'au Channel · Nov – Dec 2025

154 m
Deepest dive
6:14
Longest dive
60
Dives
Sightings
5
Days between first and last sighting
28
Deepest dive on record
154 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 30, 202575 m—66 m
Dec 3, 2025178 m—154 m
Dec 7, 202569 m—26 m
Dec 13, 2025115 m—40 m
Dec 28, 202569 m—44 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
Nov 30, 2025 — seafloor 75 m (measured), deepest dive 66 m (modelled)Nov 30Dec 3, 2025 — seafloor 178 m (measured), deepest dive 154 m (modelled)Dec 3Dec 7, 2025 — seafloor 69 m (measured), deepest dive 26 m (modelled)Dec 7Dec 13, 2025 — seafloor 115 m (measured), deepest dive 40 m (modelled)Dec 13Dec 28, 2025 — seafloor 69 m (measured), deepest dive 44 m (modelled)Dec 28

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

Dives

154 m
Deepest dive
6:14
Longest dive
60
Dives
24 m
Avg dive depth
5
Sightings
28
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200154 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (178 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 3, 2025

measured
Seafloor depth
178 m
Sea-surface temperature
—
Distance from shore
8.0 km

Across the residency · 5 sightings

measured
Seafloor depth
69 m – 178 m
Sea-surface temperature
—
Distance from shore
4.0 km – 8.0 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.