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

HW-MN0441400 – Residency

11th sighting in Au'au Channel
Fluke of HW-MN0441400
HW-MN0441400 Confirmed in the catalog @26432
Feb 18 – Mar 17, 2026 · Au'au Channel

Au'au Channel · Feb – Mar 2026

118 m
Deepest dive
3:50
Longest dive
55
Dives
Sightings
5
Days between first and last sighting
26
Deepest dive on record
118 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 18, 2026168 m24.8°C118 m
Feb 20, 202649 m24.6°C44 m
Feb 20, 202668 m24.6°C50 m
Feb 20, 202642 m24.6°C37 m
Mar 17, 202633 m24.9°C28 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 18, 2026 — seafloor 168 m (measured), deepest dive 118 m (modelled)Feb 18Feb 20, 2026 — seafloor 49 m (measured), deepest dive 44 m (modelled)Feb 20Feb 20, 2026 — seafloor 68 m (measured), deepest dive 50 m (modelled)Feb 20Feb 20, 2026 — seafloor 42 m (measured), deepest dive 37 m (modelled)Feb 20Mar 17, 2026 — seafloor 33 m (measured), deepest dive 28 m (modelled)Mar 17

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

Dives

118 m
Deepest dive
3:50
Longest dive
55
Dives
24 m
Avg dive depth
5
Sightings
26
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150118 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (168 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 · Feb 18, 2026

measured
Seafloor depth
168 m
Sea-surface temperature
24.8°C
Distance from shore
9.0 km

Across the residency · 5 sightings

measured
Seafloor depth
33 m – 168 m
Sea-surface temperature
24.6°C – 24.9°C
Distance from shore
1.0 km – 9.0 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.