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

HW-MN0441345 – Residency

4th sighting in Au'au Channel
Fluke of HW-MN0441345
HW-MN0441345 Confirmed in the catalog @26377
Mar 23 – Apr 3, 2021 · Au'au Channel

Au'au Channel · Mar – Apr 2021

48 m
Deepest dive
1:59
Longest dive
21
Dives
Sightings
2
Days between first and last sighting
11
Deepest dive on record
48 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Mar 23, 202139 m—29 m
Apr 3, 202156 m—48 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 23, 2021 — seafloor 39 m (measured), deepest dive 29 m (modelled)Mar 23Apr 3, 2021 — seafloor 56 m (measured), deepest dive 48 m (modelled)Apr 3

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

Dives

48 m
Deepest dive
1:59
Longest dive
21
Dives
21 m
Avg dive depth
2
Sightings
11
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255048 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (56 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.

Unlock with Risa Deep

Place

Where this happened · Apr 3, 2021

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

Across the residency · 2 sightings

measured
Seafloor depth
39 m – 56 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 2 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).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.