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

HW-MN0801793 – Residency

8th sighting in South Africa
Fluke of HW-MN0801793
HW-MN0801793 Confirmed in the catalog @87765
Dec 4, 2023 – Jan 11, 2024 · South Africa

South Africa · Dec 2023 – Jan 2024

59 m
Deepest dive
2:26
Longest dive
62
Dives
Sightings
5
Days between first and last sighting
39
Deepest dive on record
59 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Dec 4, 2023146 m—52 m
Jan 2, 202479 m—59 m
Jan 6, 202461 m—41 m
Jan 11, 202494 m—54 m
Jan 11, 202497 m—51 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 4, 2023 — seafloor 146 m (measured), deepest dive 52 m (modelled)Dec 4Jan 2, 2024 — seafloor 79 m (measured), deepest dive 59 m (modelled)Jan 2Jan 6, 2024 — seafloor 61 m (measured), deepest dive 41 m (modelled)Jan 6Jan 11, 2024 — seafloor 94 m (measured), deepest dive 54 m (modelled)Jan 11Jan 11, 2024 — seafloor 97 m (measured), deepest dive 51 m (modelled)Jan 11

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

Dives

59 m
Deepest dive
2:26
Longest dive
62
Dives
22 m
Avg dive depth
5
Sightings
39
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010059 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (79 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 · Jan 2, 2024

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

Across the residency · 5 sightings

measured
Seafloor depth
61 m – 146 m
Sea-surface temperature
—
Distance from shore
6.0 km – 16.0 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 5 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.