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

HW-MN0441029 – Residency

16th sighting in Au'au Channel
Fluke of HW-MN0441029
HW-MN0441029 Confirmed in the catalog @19774
Feb 16 – Mar 10, 2026 · Au'au Channel

Au'au Channel · Feb – Mar 2026

65 m
Deepest dive
3:01
Longest dive
49
Dives
Sightings
5
Days between first and last sighting
22

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 16, 202620 m24.8°C15 m
Feb 25, 202662 m24.4°C53 m
Mar 8, 202649 m24.6°C35 m
Mar 10, 202673 m24.6°C65 m
Mar 10, 202640 m24.6°C29 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
Feb 16, 2026 — seafloor 20 m (measured), deepest dive 15 m (modelled)Feb 16Feb 25, 2026 — seafloor 62 m (measured), deepest dive 53 m (modelled)Feb 25Mar 8, 2026 — seafloor 49 m (measured), deepest dive 35 m (modelled)Mar 8Mar 10, 2026 — seafloor 73 m (measured), deepest dive 65 m (modelled)Mar 10Mar 10, 2026 — seafloor 40 m (measured), deepest dive 29 m (modelled)Mar 10

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

Dives

65 m
Deepest dive
3:01
Longest dive
49
Dives
20 m
Avg dive depth
5
Sightings
22
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (73 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
73 m
Sea-surface temperature
24.6°C
Distance from shore
2.0 km

Across the residency · 5 sightings

measured
Seafloor depth
20 m – 73 m
Sea-surface temperature
24.4°C – 24.8°C
Distance from shore
2.0 km – 4.0 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.