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

HW-MN0804312 – Residency

7th sighting in South Africa
Fluke of HW-MN0804312
HW-MN0804312 Confirmed in the catalog @127757
Nov 7, 2024 – Feb 20, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

55 m
Deepest dive
2:36
Longest dive
100
Dives
Sightings
7
Days between first and last sighting
105
Deepest dive on record
55 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 7, 202455 m—44 m
Dec 12, 202445 m—41 m
Dec 19, 202482 m—55 m
Jan 18, 202566 m—27 m
Jan 18, 202574 m—31 m
Jan 25, 202569 m—55 m
Feb 20, 202549 m—42 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 7, 2024 — seafloor 55 m (measured), deepest dive 44 m (modelled)Nov 7Dec 12, 2024 — seafloor 45 m (measured), deepest dive 41 m (modelled)Dec 12Dec 19, 2024 — seafloor 82 m (measured), deepest dive 55 m (modelled)Dec 19Jan 18, 2025 — seafloor 66 m (measured), deepest dive 27 m (modelled)Jan 18Jan 18, 2025 — seafloor 74 m (measured), deepest dive 31 m (modelled)Jan 18Jan 25, 2025 — seafloor 69 m (measured), deepest dive 55 m (modelled)Jan 25Feb 20, 2025 — seafloor 49 m (measured), deepest dive 42 m (modelled)Feb 20

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

Dives

55 m
Deepest dive
2:36
Longest dive
100
Dives
21 m
Avg dive depth
7
Sightings
105
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010055 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (82 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 19, 2024

measured
Seafloor depth
82 m
Sea-surface temperature
—
Distance from shore
10.0 km

Across the residency · 7 sightings

measured
Seafloor depth
45 m – 82 m
Sea-surface temperature
—
Distance from shore
3.0 km – 10.0 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 7 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.