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

MRIWU-00116 – Residency

11th sighting in South Africa
Fluke of MRIWU-00116
MRIWU-00116 Confirmed in the catalog @108580
Nov 17, 2023 – Jan 21, 2024 · South Africa

South Africa · Nov 2023 – Jan 2024

72 m
Deepest dive
2:53
Longest dive
111
Dives
Sightings
13
Days between first and last sighting
65
Deepest dive on record
72 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 17, 202387 m—63 m
Nov 19, 202331 m—21 m
Dec 1, 202358 m—45 m
Dec 1, 202330 m—25 m
Dec 20, 202343 m—37 m
Jan 2, 202479 m—72 m
Jan 4, 202466 m—57 m
Jan 6, 202461 m—50 m
Jan 7, 202480 m—40 m
Jan 9, 202471 m—46 m
Jan 11, 202493 m—30 m
Jan 13, 202453 m—47 m
Jan 21, 202456 m—46 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 17, 2023 — seafloor 87 m (measured), deepest dive 63 m (modelled)Nov 17Nov 19, 2023 — seafloor 31 m (measured), deepest dive 21 m (modelled)Dec 1, 2023 — seafloor 58 m (measured), deepest dive 45 m (modelled)Dec 1, 2023 — seafloor 30 m (measured), deepest dive 25 m (modelled)Dec 1Dec 20, 2023 — seafloor 43 m (measured), deepest dive 37 m (modelled)Jan 2, 2024 — seafloor 79 m (measured), deepest dive 72 m (modelled)Jan 4, 2024 — seafloor 66 m (measured), deepest dive 57 m (modelled)Jan 4Jan 6, 2024 — seafloor 61 m (measured), deepest dive 50 m (modelled)Jan 7, 2024 — seafloor 80 m (measured), deepest dive 40 m (modelled)Jan 9, 2024 — seafloor 71 m (measured), deepest dive 46 m (modelled)Jan 9Jan 11, 2024 — seafloor 93 m (measured), deepest dive 30 m (modelled)Jan 13, 2024 — seafloor 53 m (measured), deepest dive 47 m (modelled)Jan 21, 2024 — seafloor 56 m (measured), deepest dive 46 m (modelled)Jan 21

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

Dives

72 m
Deepest dive
2:53
Longest dive
111
Dives
20 m
Avg dive depth
13
Sightings
65
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010072 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (79 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, 2024

measured
Seafloor depth
79 m
Sea-surface temperature
—
Distance from shore
12.0 km

Across the residency · 13 sightings

measured
Seafloor depth
30 m – 93 m
Sea-surface temperature
—
Distance from shore
3.0 km – 17.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

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

Source records

This activity is assembled from 13 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.