Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
South Africa

MRIWU-00116 – Residency

24th sighting in South Africa
Fluke of MRIWU-00116
MRIWU-00116 Confirmed in the catalog @108580
Nov 7, 2025 – Jan 8, 2026 · South Africa

South Africa · Nov 2025 – Jan 2026

33 m
Deepest dive
1:30
Longest dive
29
Dives
Sightings
3
Days between first and last sighting
62

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 7, 202552 m—30 m
Dec 30, 202546 m—23 m
Jan 8, 202657 m20.4°C33 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 7, 2025 — seafloor 52 m (measured), deepest dive 30 m (modelled)Nov 7Dec 30, 2025 — seafloor 46 m (measured), deepest dive 23 m (modelled)Dec 30Jan 8, 2026 — seafloor 57 m (measured), deepest dive 33 m (modelled)Jan 8

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

Dives

33 m
Deepest dive
1:30
Longest dive
29
Dives
16 m
Avg dive depth
3
Sightings
62
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255033 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (57 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 8, 2026

measured
Seafloor depth
57 m
Sea-surface temperature
20.4°C
Distance from shore
5.0 km

Across the residency · 3 sightings

measured
Seafloor depth
46 m – 57 m
Sea-surface temperature
20.4°C
Distance from shore
3.0 km – 7.0 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 3 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.