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

HW-MN0442844 – Residency

6th sighting in Au'au Channel
Fluke of HW-MN0442844
HW-MN0442844 Confirmed in the catalog @55378
Mar 16 – 31, 2023 · Au'au Channel

Au'au Channel · Mar 2023

108 m
Deepest dive
4:47
Longest dive
55
Dives
Sightings
3
Days between first and last sighting
15
Deepest dive on record
108 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Mar 16, 2023114 m—74 m
Mar 21, 2023186 m—108 m
Mar 31, 202387 m—70 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 16, 2023 — seafloor 114 m (measured), deepest dive 74 m (modelled)Mar 16Mar 21, 2023 — seafloor 186 m (measured), deepest dive 108 m (modelled)Mar 21Mar 31, 2023 — seafloor 87 m (measured), deepest dive 70 m (modelled)Mar 31

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

Dives

108 m
Deepest dive
4:47
Longest dive
55
Dives
25 m
Avg dive depth
3
Sightings
15
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150108 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (186 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 · Mar 21, 2023

measured
Seafloor depth
186 m
Sea-surface temperature
—
Distance from shore
12.0 km

Across the residency · 3 sightings

measured
Seafloor depth
87 m – 186 m
Sea-surface temperature
—
Distance from shore
4.0 km – 12.0 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 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).

Happywhale runs on donations: support Happywhale →

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