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South Africa

HW-MN0804377 – Residency

10th sighting in South Africa
Fluke of HW-MN0804377
HW-MN0804377 Confirmed in the catalog @130029
Nov 29, 2024 – Feb 20, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

83 m
Deepest dive
3:44
Longest dive
147
Dives
Sightings
10
Days between first and last sighting
83
Deepest dive on record
83 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 29, 202493 m—79 m
Dec 17, 202470 m—59 m
Jan 5, 202584 m—71 m
Jan 8, 202596 m—83 m
Jan 13, 202596 m—43 m
Jan 14, 202581 m—65 m
Jan 19, 202568 m—61 m
Jan 19, 202563 m—42 m
Feb 8, 202561 m—54 m
Feb 20, 202549 m—44 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 79 m (modelled)Nov 29Dec 17, 2024 — seafloor 70 m (measured), deepest dive 59 m (modelled)Dec 17Jan 5, 2025 — seafloor 84 m (measured), deepest dive 71 m (modelled)Jan 5Jan 8, 2025 — seafloor 96 m (measured), deepest dive 83 m (modelled)Jan 8Jan 13, 2025 — seafloor 96 m (measured), deepest dive 43 m (modelled)Jan 13Jan 14, 2025 — seafloor 81 m (measured), deepest dive 65 m (modelled)Jan 14Jan 19, 2025 — seafloor 68 m (measured), deepest dive 61 m (modelled)Jan 19Jan 19, 2025 — seafloor 63 m (measured), deepest dive 42 m (modelled)Jan 19Feb 8, 2025 — seafloor 61 m (measured), deepest dive 54 m (modelled)Feb 8Feb 20, 2025 — seafloor 49 m (measured), deepest dive 44 m (modelled)Feb 20

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

Dives

83 m
Deepest dive
3:44
Longest dive
147
Dives
24 m
Avg dive depth
10
Sightings
83
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010083 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (96 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 · Jan 8, 2025

measured
Seafloor depth
96 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 10 sightings

measured
Seafloor depth
49 m – 96 m
Sea-surface temperature
—
Distance from shore
2.0 km – 13.0 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 10 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.