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Au'au Channel

RJKahuna – Residency

35th sighting in Au'au Channel
Fluke of RJKahuna
RJKahuna Confirmed in the catalog @23731
Feb 4 – Mar 27, 2026 · Au'au Channel

This Channel Knows Me

Stretched from February into spring, and this bright water held me the whole time.

153 m
Deepest dive
5:20
Longest dive
125
Dives
Sightings
13
Days between first and last sighting
51
Deepest dive on record
153 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 4, 202611 m25.4°C9 m
Feb 7, 2026199 m25.5°C153 m
Feb 21, 202622 m24.4°C16 m
Feb 23, 202655 m24.6°C35 m
Feb 23, 202616 m24.5°C10 m
Feb 24, 202669 m24.7°C47 m
Mar 5, 202639 m24.7°C32 m
Mar 6, 202616 m24.5°C7 m
Mar 7, 202676 m24.9°C68 m
Mar 17, 202650 m25.0°C39 m
Mar 22, 2026199 m24.7°C64 m
Mar 26, 202624 m24.4°C22 m
Mar 27, 202640 m24.4°C36 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 4, 2026 — seafloor 11 m (measured), deepest dive 9 m (modelled)Feb 4Feb 7, 2026 — seafloor 199 m (measured), deepest dive 153 m (modelled)Feb 21, 2026 — seafloor 22 m (measured), deepest dive 16 m (modelled)Feb 23, 2026 — seafloor 55 m (measured), deepest dive 35 m (modelled)Feb 23Feb 23, 2026 — seafloor 16 m (measured), deepest dive 10 m (modelled)Feb 24, 2026 — seafloor 69 m (measured), deepest dive 47 m (modelled)Mar 5, 2026 — seafloor 39 m (measured), deepest dive 32 m (modelled)Mar 5Mar 6, 2026 — seafloor 16 m (measured), deepest dive 7 m (modelled)Mar 7, 2026 — seafloor 76 m (measured), deepest dive 68 m (modelled)Mar 17, 2026 — seafloor 50 m (measured), deepest dive 39 m (modelled)Mar 17Mar 22, 2026 — seafloor 199 m (measured), deepest dive 64 m (modelled)Mar 26, 2026 — seafloor 24 m (measured), deepest dive 22 m (modelled)Mar 27, 2026 — seafloor 40 m (measured), deepest dive 36 m (modelled)Mar 27

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

Dives

153 m
Deepest dive
5:20
Longest dive
125
Dives
19 m
Avg dive depth
13
Sightings
51
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200153 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (199 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 · Feb 7, 2026

measured
Seafloor depth
199 m
Sea-surface temperature
25.5°C
Distance from shore
11.0 km

Across the residency · 13 sightings

measured
Seafloor depth
11 m – 199 m
Sea-surface temperature
24.4°C – 25.5°C
Distance from shore
2.0 km – 11.0 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 13 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.