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South Africa

HW-MN0805551 – Residency

9th sighting in South Africa
Fluke of HW-MN0805551
HW-MN0805551 Confirmed in the catalog @148145
Nov 13, 2025 – Jan 6, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

73 m
Deepest dive
3:04
Longest dive
77
Dives
Sightings
9
Days between first and last sighting
54
Deepest dive on record
73 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 13, 202558 m—41 m
Dec 4, 202590 m—65 m
Dec 4, 202578 m—67 m
Dec 27, 2025105 m—73 m
Dec 29, 202545 m—25 m
Dec 30, 202562 m—53 m
Dec 31, 202545 m—39 m
Jan 5, 202683 m15.0°C17 m
Jan 6, 202660 m14.8°C23 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 13, 2025 — seafloor 58 m (measured), deepest dive 41 m (modelled)Nov 13Dec 4, 2025 — seafloor 90 m (measured), deepest dive 65 m (modelled)Dec 4Dec 4, 2025 — seafloor 78 m (measured), deepest dive 67 m (modelled)Dec 4Dec 27, 2025 — seafloor 105 m (measured), deepest dive 73 m (modelled)Dec 27Dec 29, 2025 — seafloor 45 m (measured), deepest dive 25 m (modelled)Dec 29Dec 30, 2025 — seafloor 62 m (measured), deepest dive 53 m (modelled)Dec 30Dec 31, 2025 — seafloor 45 m (measured), deepest dive 39 m (modelled)Dec 31Jan 5, 2026 — seafloor 83 m (measured), deepest dive 17 m (modelled)Jan 5Jan 6, 2026 — seafloor 60 m (measured), deepest dive 23 m (modelled)Jan 6

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

Dives

73 m
Deepest dive
3:04
Longest dive
77
Dives
21 m
Avg dive depth
9
Sightings
54
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010073 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (105 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 27, 2025

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

Across the residency · 9 sightings

measured
Seafloor depth
45 m – 105 m
Sea-surface temperature
14.8°C – 15.0°C
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 9 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.