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

HW-MN0441430 – Residency

8th sighting in Au'au Channel
Fluke of HW-MN0441430
HW-MN0441430 Confirmed in the catalog @32932
Mar 2 – 16, 2025 · Au'au Channel

Au'au Channel · Mar 2025

54 m
Deepest dive
2:21
Longest dive
49
Dives
Sightings
4
Days between first and last sighting
14

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Mar 2, 202561 m—53 m
Mar 15, 202552 m—41 m
Mar 15, 202558 m—17 m
Mar 16, 202579 m—54 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 2, 2025 — seafloor 61 m (measured), deepest dive 53 m (modelled)Mar 2Mar 15, 2025 — seafloor 52 m (measured), deepest dive 41 m (modelled)Mar 15Mar 15, 2025 — seafloor 58 m (measured), deepest dive 17 m (modelled)Mar 15Mar 16, 2025 — seafloor 79 m (measured), deepest dive 54 m (modelled)Mar 16

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

Dives

54 m
Deepest dive
2:21
Longest dive
49
Dives
18 m
Avg dive depth
4
Sightings
14
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010054 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (79 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 16, 2025

measured
Seafloor depth
79 m
Sea-surface temperature
—
Distance from shore
5.0 km

Across the residency · 4 sightings

measured
Seafloor depth
52 m – 79 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.