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

TDI-15423 – Residency

3rd sighting in Au'au Channel
Fluke of TDI-15423
TDI-15423 Confirmed in the catalog @40420
Mar 9 – 17, 2025 · Au'au Channel

Au'au Channel · Mar 2025

48 m
Deepest dive
2:14
Longest dive
28
Dives
Sightings
4
Days between first and last sighting
8
Deepest dive on record
48 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Mar 9, 202553 m—48 m
Mar 9, 202561 m—42 m
Mar 9, 202556 m—42 m
Mar 17, 202550 m—40 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 9, 2025 — seafloor 53 m (measured), deepest dive 48 m (modelled)Mar 9Mar 9, 2025 — seafloor 61 m (measured), deepest dive 42 m (modelled)Mar 9Mar 9, 2025 — seafloor 56 m (measured), deepest dive 42 m (modelled)Mar 9Mar 17, 2025 — seafloor 50 m (measured), deepest dive 40 m (modelled)Mar 17

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

Dives

48 m
Deepest dive
2:14
Longest dive
28
Dives
21 m
Avg dive depth
4
Sightings
8
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255048 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (53 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 9, 2025

measured
Seafloor depth
53 m
Sea-surface temperature
—
Distance from shore
3.0 km

Across the residency · 4 sightings

measured
Seafloor depth
50 m – 61 m
Sea-surface temperature
—
Distance from shore
2.0 km – 5.0 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 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.