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

HW-MN0441011 – Residency

7th sighting in Au'au Channel
Fluke of HW-MN0441011
HW-MN0441011 Confirmed in the catalog @19755
Mar 4 – 10, 2026 · Au'au Channel

Au'au Channel · Mar 2026

75 m
Deepest dive
3:07
Longest dive
48
Dives
Sightings
3
Days between first and last sighting
6
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)
Mar 4, 202694 m24.8°C72 m
Mar 9, 202669 m24.7°C46 m
Mar 10, 202687 m24.9°C75 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
Mar 4, 2026 — seafloor 94 m (measured), deepest dive 72 m (modelled)Mar 4Mar 9, 2026 — seafloor 69 m (measured), deepest dive 46 m (modelled)Mar 9Mar 10, 2026 — seafloor 87 m (measured), deepest dive 75 m (modelled)Mar 10

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

Dives

75 m
Deepest dive
3:07
Longest dive
48
Dives
27 m
Avg dive depth
3
Sightings
6
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010075 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (87 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 · Mar 10, 2026

measured
Seafloor depth
87 m
Sea-surface temperature
24.9°C
Distance from shore
4.0 km

Across the residency · 3 sightings

measured
Seafloor depth
69 m – 94 m
Sea-surface temperature
24.7°C – 24.9°C
Distance from shore
4.0 km – 6.0 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 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.