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

HW-MN0804412 – Residency

11th sighting in South Africa
Fluke of HW-MN0804412
HW-MN0804412 Confirmed in the catalog @130257
Nov 30, 2024 – Feb 20, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

81 m
Deepest dive
3:00
Longest dive
93
Dives
Sightings
11
Days between first and last sighting
82
Deepest dive on record
81 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 30, 202480 m—19 m
Dec 4, 202438 m—32 m
Dec 11, 202474 m—56 m
Dec 11, 202460 m—49 m
Dec 12, 202442 m—24 m
Jan 17, 202523 m—21 m
Jan 18, 202566 m—42 m
Feb 1, 202598 m—81 m
Feb 3, 202593 m—24 m
Feb 12, 202561 m—47 m
Feb 20, 202549 m—33 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 30, 2024 — seafloor 80 m (measured), deepest dive 19 m (modelled)Nov 30Dec 4, 2024 — seafloor 38 m (measured), deepest dive 32 m (modelled)Dec 4Dec 11, 2024 — seafloor 74 m (measured), deepest dive 56 m (modelled)Dec 11Dec 11, 2024 — seafloor 60 m (measured), deepest dive 49 m (modelled)Dec 11Dec 12, 2024 — seafloor 42 m (measured), deepest dive 24 m (modelled)Dec 12Jan 17, 2025 — seafloor 23 m (measured), deepest dive 21 m (modelled)Jan 17Jan 18, 2025 — seafloor 66 m (measured), deepest dive 42 m (modelled)Jan 18Feb 1, 2025 — seafloor 98 m (measured), deepest dive 81 m (modelled)Feb 1Feb 3, 2025 — seafloor 93 m (measured), deepest dive 24 m (modelled)Feb 3Feb 12, 2025 — seafloor 61 m (measured), deepest dive 47 m (modelled)Feb 12Feb 20, 2025 — seafloor 49 m (measured), deepest dive 33 m (modelled)Feb 20

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

Dives

81 m
Deepest dive
3:00
Longest dive
93
Dives
19 m
Avg dive depth
11
Sightings
82
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010081 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (98 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 · Feb 1, 2025

measured
Seafloor depth
98 m
Sea-surface temperature
—
Distance from shore
9.0 km

Across the residency · 11 sightings

measured
Seafloor depth
23 m – 98 m
Sea-surface temperature
—
Distance from shore
2.0 km – 9.0 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 11 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.