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

Ulrike – Residency

9th sighting in Au'au Channel
Fluke of Ulrike
Ulrike Confirmed in the catalog @14671
Dec 3, 2024 – Jan 3, 2025 · Au'au Channel

Au'au Channel · Dec 2024 – Jan 2025

126 m
Deepest dive
4:24
Longest dive
64
Dives
Sightings
4
Days between first and last sighting
31

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 3, 2024200 m—58 m
Dec 3, 2024712 m—126 m
Dec 18, 2024149 m—100 m
Jan 3, 202532 m—24 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 3, 2024 — seafloor 200 m (measured), deepest dive 58 m (modelled)Dec 3Dec 3, 2024 — seafloor 712 m (measured), deepest dive 126 m (modelled)Dec 3Dec 18, 2024 — seafloor 149 m (measured), deepest dive 100 m (modelled)Dec 18Jan 3, 2025 — seafloor 32 m (measured), deepest dive 24 m (modelled)Jan 3

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

Dives

126 m
Deepest dive
4:24
Longest dive
64
Dives
26 m
Avg dive depth
4
Sightings
31
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150126 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (712 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 3, 2024

measured
Seafloor depth
712 m
Sea-surface temperature
—
Distance from shore
6.0 km

Across the residency · 4 sightings

measured
Seafloor depth
32 m – 712 m
Sea-surface temperature
—
Distance from shore
2.0 km – 10.0 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.