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South Africa

HW-MN0805525 – Residency

9th sighting in South Africa
Fluke of HW-MN0805525
HW-MN0805525 Confirmed in the catalog @147616
Nov 8, 2025 – Jan 27, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

86 m
Deepest dive
3:33
Longest dive
122
Dives
Sightings
10
Days between first and last sighting
80
Deepest dive on record
86 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 8, 202559 m—45 m
Dec 27, 2025105 m—60 m
Dec 30, 202546 m—41 m
Dec 31, 202545 m—27 m
Jan 2, 202682 m15.6°C71 m
Jan 5, 202663 m14.8°C43 m
Jan 5, 202682 m14.8°C69 m
Jan 17, 202682 m14.1°C65 m
Jan 26, 202657 m14.3°C50 m
Jan 27, 202699 m16.4°C86 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 8, 2025 — seafloor 59 m (measured), deepest dive 45 m (modelled)Nov 8Dec 27, 2025 — seafloor 105 m (measured), deepest dive 60 m (modelled)Dec 27Dec 30, 2025 — seafloor 46 m (measured), deepest dive 41 m (modelled)Dec 30Dec 31, 2025 — seafloor 45 m (measured), deepest dive 27 m (modelled)Dec 31Jan 2, 2026 — seafloor 82 m (measured), deepest dive 71 m (modelled)Jan 2Jan 5, 2026 — seafloor 63 m (measured), deepest dive 43 m (modelled)Jan 5Jan 5, 2026 — seafloor 82 m (measured), deepest dive 69 m (modelled)Jan 5Jan 17, 2026 — seafloor 82 m (measured), deepest dive 65 m (modelled)Jan 17Jan 26, 2026 — seafloor 57 m (measured), deepest dive 50 m (modelled)Jan 26Jan 27, 2026 — seafloor 99 m (measured), deepest dive 86 m (modelled)Jan 27

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

Dives

86 m
Deepest dive
3:33
Longest dive
122
Dives
26 m
Avg dive depth
10
Sightings
80
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010086 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (99 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 27, 2026

measured
Seafloor depth
99 m
Sea-surface temperature
16.4°C
Distance from shore
11.0 km

Across the residency · 10 sightings

measured
Seafloor depth
45 m – 105 m
Sea-surface temperature
14.1°C – 16.4°C
Distance from shore
3.0 km – 12.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · 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.