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

HI23_0193 – Residency

5th sighting in Au'au Channel
Fluke of HI23_0193
HI23_0193 Confirmed in the catalog @140401
Feb 28 – Mar 6, 2026 · Au'au Channel

Au'au Channel · Feb – Mar 2026

63 m
Deepest dive
2:32
Longest dive
73
Dives
Sightings
4
Days between first and last sighting
6
Deepest dive on record
63 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 28, 202669 m24.6°C49 m
Mar 1, 202674 m24.5°C24 m
Mar 4, 202642 m24.7°C34 m
Mar 6, 202673 m25.0°C63 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 28, 2026 — seafloor 69 m (measured), deepest dive 49 m (modelled)Feb 28Mar 1, 2026 — seafloor 74 m (measured), deepest dive 24 m (modelled)Mar 1Mar 4, 2026 — seafloor 42 m (measured), deepest dive 34 m (modelled)Mar 4Mar 6, 2026 — seafloor 73 m (measured), deepest dive 63 m (modelled)Mar 6

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

Dives

63 m
Deepest dive
2:32
Longest dive
73
Dives
16 m
Avg dive depth
4
Sightings
6
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010063 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 6, 2026

measured
Seafloor depth
73 m
Sea-surface temperature
25.0°C
Distance from shore
5.0 km

Across the residency · 4 sightings

measured
Seafloor depth
42 m – 74 m
Sea-surface temperature
24.5°C – 25.0°C
Distance from shore
2.0 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 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.