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Au'au Channel

SEAK-5476 – Residency

13th sighting in Au'au Channel
Fluke of SEAK-5476
SEAK-5476 Confirmed in the catalog @73494
Dec 10, 2025 – Jan 18, 2026 · Au'au Channel

Au'au Channel · Dec 2025 – Jan 2026

68 m
Deepest dive
3:31
Longest dive
106
Dives
Sightings
9
Days between first and last sighting
39

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 10, 202571 m—58 m
Dec 21, 2025282 m—68 m
Dec 22, 20251,139 m—66 m
Jan 8, 202629 m25.5°C26 m
Jan 8, 202649 m25.5°C31 m
Jan 8, 202618 m25.5°C16 m
Jan 9, 202662 m25.5°C52 m
Jan 18, 202670 m25.2°C58 m
Jan 18, 202642 m25.2°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
Dec 10, 2025 — seafloor 71 m (measured), deepest dive 58 m (modelled)Dec 10Dec 21, 2025 — seafloor 282 m (measured), deepest dive 68 m (modelled)Dec 21Dec 22, 2025 — seafloor 1,139 m (measured), deepest dive 66 m (modelled)Dec 22Jan 8, 2026 — seafloor 29 m (measured), deepest dive 26 m (modelled)Jan 8Jan 8, 2026 — seafloor 49 m (measured), deepest dive 31 m (modelled)Jan 8Jan 8, 2026 — seafloor 18 m (measured), deepest dive 16 m (modelled)Jan 8Jan 9, 2026 — seafloor 62 m (measured), deepest dive 52 m (modelled)Jan 9Jan 18, 2026 — seafloor 70 m (measured), deepest dive 58 m (modelled)Jan 18Jan 18, 2026 — seafloor 42 m (measured), deepest dive 29 m (modelled)Jan 18

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

Dives

68 m
Deepest dive
3:31
Longest dive
106
Dives
21 m
Avg dive depth
9
Sightings
39
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010068 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (282 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 21, 2025

measured
Seafloor depth
282 m
Sea-surface temperature
—
Distance from shore
6.0 km

Across the residency · 9 sightings

measured
Seafloor depth
18 m – 1,139 m
Sea-surface temperature
25.2°C – 25.5°C
Distance from shore
2.0 km – 6.0 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 9 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.