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South Africa

HW-MN0805571 – Residency

10th sighting in South Africa
Fluke of HW-MN0805571
HW-MN0805571 Confirmed in the catalog @148590
Nov 24, 2025 – Feb 7, 2026 · South Africa

South Africa · Nov 2025 – Feb 2026

65 m
Deepest dive
2:17
Longest dive
113
Dives
Sightings
10
Days between first and last sighting
75
Deepest dive on record
65 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 24, 202561 m—47 m
Nov 25, 202556 m—36 m
Jan 2, 202682 m15.6°C65 m
Jan 5, 202682 m14.8°C59 m
Jan 6, 202693 m15.2°C44 m
Jan 17, 202682 m14.1°C53 m
Jan 26, 202669 m14.3°C61 m
Jan 27, 202699 m16.4°C51 m
Jan 30, 202634 m14.6°C27 m
Feb 7, 202681 m16.8°C65 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 24, 2025 — seafloor 61 m (measured), deepest dive 47 m (modelled)Nov 24Nov 25, 2025 — seafloor 56 m (measured), deepest dive 36 m (modelled)Nov 25Jan 2, 2026 — seafloor 82 m (measured), deepest dive 65 m (modelled)Jan 2Jan 5, 2026 — seafloor 82 m (measured), deepest dive 59 m (modelled)Jan 5Jan 6, 2026 — seafloor 93 m (measured), deepest dive 44 m (modelled)Jan 6Jan 17, 2026 — seafloor 82 m (measured), deepest dive 53 m (modelled)Jan 17Jan 26, 2026 — seafloor 69 m (measured), deepest dive 61 m (modelled)Jan 26Jan 27, 2026 — seafloor 99 m (measured), deepest dive 51 m (modelled)Jan 27Jan 30, 2026 — seafloor 34 m (measured), deepest dive 27 m (modelled)Jan 30Feb 7, 2026 — seafloor 81 m (measured), deepest dive 65 m (modelled)Feb 7

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

Dives

65 m
Deepest dive
2:17
Longest dive
113
Dives
22 m
Avg dive depth
10
Sightings
75
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (82 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 2, 2026

measured
Seafloor depth
82 m
Sea-surface temperature
15.6°C
Distance from shore
12.0 km

Across the residency · 10 sightings

measured
Seafloor depth
34 m – 99 m
Sea-surface temperature
14.1°C – 16.8°C
Distance from shore
4.0 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.