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

HW-MN0804374 – Residency

8th sighting in South Africa
Fluke of HW-MN0804374
HW-MN0804374 Confirmed in the catalog @130026
Nov 29, 2024 – Feb 20, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

74 m
Deepest dive
3:47
Longest dive
121
Dives
Sightings
8
Days between first and last sighting
83
Deepest dive on record
74 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 29, 202493 m—74 m
Dec 3, 202451 m—44 m
Dec 5, 202461 m—31 m
Dec 29, 202450 m—42 m
Dec 31, 202477 m—65 m
Jan 25, 202569 m—50 m
Feb 12, 202562 m—43 m
Feb 20, 202549 m—40 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 29, 2024 — seafloor 93 m (measured), deepest dive 74 m (modelled)Nov 29Dec 3, 2024 — seafloor 51 m (measured), deepest dive 44 m (modelled)Dec 3Dec 5, 2024 — seafloor 61 m (measured), deepest dive 31 m (modelled)Dec 5Dec 29, 2024 — seafloor 50 m (measured), deepest dive 42 m (modelled)Dec 29Dec 31, 2024 — seafloor 77 m (measured), deepest dive 65 m (modelled)Dec 31Jan 25, 2025 — seafloor 69 m (measured), deepest dive 50 m (modelled)Jan 25Feb 12, 2025 — seafloor 62 m (measured), deepest dive 43 m (modelled)Feb 12Feb 20, 2025 — seafloor 49 m (measured), deepest dive 40 m (modelled)Feb 20

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

Dives

74 m
Deepest dive
3:47
Longest dive
121
Dives
20 m
Avg dive depth
8
Sightings
83
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010074 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (93 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 · Nov 29, 2024

measured
Seafloor depth
93 m
Sea-surface temperature
—
Distance from shore
13.0 km

Across the residency · 8 sightings

measured
Seafloor depth
49 m – 93 m
Sea-surface temperature
—
Distance from shore
3.0 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 8 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.