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

Dunkle – Residency

21st sighting in Au'au Channel
Fluke of Dunkle
Dunkle Confirmed in the catalog @6262
Dec 7, 2025 – Feb 5, 2026 · Au'au Channel

Au'au Channel · Dec 2025 – Feb 2026

53 m
Deepest dive
2:27
Longest dive
68
Dives
Sightings
6
Days between first and last sighting
59

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 7, 202569 m26.3°C51 m
Dec 31, 20251,139 m25.6°C53 m
Jan 18, 202663 m25.5°C26 m
Jan 21, 202648 m25.2°C40 m
Feb 4, 202642 m25.4°C38 m
Feb 5, 202617 m25.4°C15 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 7, 2025 — seafloor 69 m (measured), deepest dive 51 m (modelled)Dec 7Dec 31, 2025 — seafloor 1,139 m (measured), deepest dive 53 m (modelled)Dec 31Jan 18, 2026 — seafloor 63 m (measured), deepest dive 26 m (modelled)Jan 18Jan 21, 2026 — seafloor 48 m (measured), deepest dive 40 m (modelled)Jan 21Feb 4, 2026 — seafloor 42 m (measured), deepest dive 38 m (modelled)Feb 4Feb 5, 2026 — seafloor 17 m (measured), deepest dive 15 m (modelled)Feb 5

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

Dives

53 m
Deepest dive
2:27
Longest dive
68
Dives
20 m
Avg dive depth
6
Sightings
59
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010053 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (1,139 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 31, 2025

measured
Seafloor depth
1,139 m
Sea-surface temperature
25.6°C
Distance from shore
5.0 km

Across the residency · 6 sightings

measured
Seafloor depth
17 m – 1,139 m
Sea-surface temperature
25.2°C – 26.3°C
Distance from shore
2.0 km – 7.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 6 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.