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

MRIWU-00165 – Residency

8th sighting in South Africa
Fluke of MRIWU-00165
MRIWU-00165 Confirmed in the catalog @128340
Nov 17, 2024 – Feb 20, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

53 m
Deepest dive
2:45
Longest dive
84
Dives
Sightings
8
Days between first and last sighting
95
Deepest dive on record
53 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 17, 202459 m—53 m
Dec 10, 202472 m—33 m
Dec 11, 202460 m—48 m
Dec 12, 202441 m—34 m
Dec 14, 202478 m—49 m
Jan 8, 202587 m—40 m
Jan 24, 202550 m—45 m
Feb 20, 202549 m—36 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, 2024 — seafloor 59 m (measured), deepest dive 53 m (modelled)Nov 17Dec 10, 2024 — seafloor 72 m (measured), deepest dive 33 m (modelled)Dec 10Dec 11, 2024 — seafloor 60 m (measured), deepest dive 48 m (modelled)Dec 11Dec 12, 2024 — seafloor 41 m (measured), deepest dive 34 m (modelled)Dec 12Dec 14, 2024 — seafloor 78 m (measured), deepest dive 49 m (modelled)Dec 14Jan 8, 2025 — seafloor 87 m (measured), deepest dive 40 m (modelled)Jan 8Jan 24, 2025 — seafloor 50 m (measured), deepest dive 45 m (modelled)Jan 24Feb 20, 2025 — seafloor 49 m (measured), deepest dive 36 m (modelled)Feb 20

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

Dives

53 m
Deepest dive
2:45
Longest dive
84
Dives
18 m
Avg dive depth
8
Sightings
95
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010053 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (59 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 · Nov 17, 2024

measured
Seafloor depth
59 m
Sea-surface temperature
—
Distance from shore
5.0 km

Across the residency · 8 sightings

measured
Seafloor depth
41 m – 87 m
Sea-surface temperature
—
Distance from shore
2.0 km – 14.0 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 8 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.