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

HW-MN0801925 – Residency

7th sighting in South Africa
Fluke of HW-MN0801925
HW-MN0801925 Confirmed in the catalog @89708
Nov 6 – Dec 17, 2024 · South Africa

South Africa · Nov – Dec 2024

50 m
Deepest dive
1:59
Longest dive
18
Dives
Sightings
3
Days between first and last sighting
41

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 6, 202480 m—20 m
Dec 7, 202459 m—36 m
Dec 17, 202469 m—50 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
Nov 6, 2024 — seafloor 80 m (measured), deepest dive 20 m (modelled)Nov 6Dec 7, 2024 — seafloor 59 m (measured), deepest dive 36 m (modelled)Dec 7Dec 17, 2024 — seafloor 69 m (measured), deepest dive 50 m (modelled)Dec 17

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

Dives

50 m
Deepest dive
1:59
Longest dive
18
Dives
15 m
Avg dive depth
3
Sightings
41
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255050 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (69 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 17, 2024

measured
Seafloor depth
69 m
Sea-surface temperature
—
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
59 m – 80 m
Sea-surface temperature
—
Distance from shore
2.0 km – 21.0 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).

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