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

CRC-18174 – Residency

6th sighting in Au'au Channel
Fluke of CRC-18174
CRC-18174 Confirmed in the catalog @27035
Mar 26 – Apr 12, 2026 · Au'au Channel

Late Spring, Same Old Channel Love

Lingering in Au'au longer than most calendars care to admit.

36 m
Deepest dive
2:02
Longest dive
65
Dives
Sightings
3
Days between first and last sighting
17

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Mar 26, 202640 m24.4°C34 m
Apr 7, 202650 m24.5°C36 m
Apr 12, 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
Mar 26, 2026 — seafloor 40 m (measured), deepest dive 34 m (modelled)Mar 26Apr 7, 2026 — seafloor 50 m (measured), deepest dive 36 m (modelled)Apr 7Apr 12, 2026 — seafloor 33 m (measured), deepest dive 28 m (modelled)Apr 12

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

Dives

36 m
Deepest dive
2:02
Longest dive
65
Dives
16 m
Avg dive depth
3
Sightings
17
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255036 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (50 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 · Apr 7, 2026

measured
Seafloor depth
50 m
Sea-surface temperature
24.5°C
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
33 m – 50 m
Sea-surface temperature
24.4°C – 24.9°C
Distance from shore
1.0 km – 3.0 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 3 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.