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South Africa

HW-MN0805845 – Residency

6th sighting in South Africa
Fluke of HW-MN0805845
HW-MN0805845 Confirmed in the catalog @150520
Dec 31, 2025 – Jan 27, 2026 · South Africa

South Africa · Dec 2025 – Jan 2026

86 m
Deepest dive
2:50
Longest dive
70
Dives
Sightings
6
Days between first and last sighting
27
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)
Dec 31, 202586 m15.1°C66 m
Dec 31, 202575 m15.1°C63 m
Jan 5, 202682 m14.8°C49 m
Jan 17, 202663 m17.9°C54 m
Jan 26, 202685 m15.1°C35 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
Dec 31, 2025 — seafloor 86 m (measured), deepest dive 66 m (modelled)Dec 31Dec 31, 2025 — seafloor 75 m (measured), deepest dive 63 m (modelled)Dec 31Jan 5, 2026 — seafloor 82 m (measured), deepest dive 49 m (modelled)Jan 5Jan 17, 2026 — seafloor 63 m (measured), deepest dive 54 m (modelled)Jan 17Jan 26, 2026 — seafloor 85 m (measured), deepest dive 35 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
2:50
Longest dive
70
Dives
25 m
Avg dive depth
6
Sightings
27
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 · 6 sightings

measured
Seafloor depth
63 m – 99 m
Sea-surface temperature
14.8°C – 17.9°C
Distance from shore
2.0 km – 14.0 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 6 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.