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South Africa

HW-MN0800443 – Residency

17th sighting in South Africa
Fluke of HW-MN0800443
HW-MN0800443 Confirmed in the catalog @72143
Nov 10, 2025 – Jan 5, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

51 m
Deepest dive
2:27
Longest dive
95
Dives
Sightings
9
Days between first and last sighting
56

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 10, 202553 m—34 m
Nov 11, 202532 m—26 m
Dec 28, 202581 m—12 m
Dec 29, 202561 m—42 m
Dec 29, 202545 m—33 m
Dec 30, 202562 m—47 m
Dec 31, 202545 m—36 m
Jan 5, 202682 m14.8°C49 m
Jan 5, 202665 m14.8°C51 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 10, 2025 — seafloor 53 m (measured), deepest dive 34 m (modelled)Nov 10Nov 11, 2025 — seafloor 32 m (measured), deepest dive 26 m (modelled)Nov 11Dec 28, 2025 — seafloor 81 m (measured), deepest dive 12 m (modelled)Dec 28Dec 29, 2025 — seafloor 61 m (measured), deepest dive 42 m (modelled)Dec 29Dec 29, 2025 — seafloor 45 m (measured), deepest dive 33 m (modelled)Dec 29Dec 30, 2025 — seafloor 62 m (measured), deepest dive 47 m (modelled)Dec 30Dec 31, 2025 — seafloor 45 m (measured), deepest dive 36 m (modelled)Dec 31Jan 5, 2026 — seafloor 82 m (measured), deepest dive 49 m (modelled)Jan 5Jan 5, 2026 — seafloor 65 m (measured), deepest dive 51 m (modelled)Jan 5

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

Dives

51 m
Deepest dive
2:27
Longest dive
95
Dives
18 m
Avg dive depth
9
Sightings
56
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010051 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (65 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 5, 2026

measured
Seafloor depth
65 m
Sea-surface temperature
14.8°C
Distance from shore
6.0 km

Across the residency · 9 sightings

measured
Seafloor depth
32 m – 82 m
Sea-surface temperature
14.8°C
Distance from shore
3.0 km – 10.0 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 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.