Risa
Try Deep freeDeep
Risa
Try Deep freeDeep
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
South Africa

MRIWU-00131 – Residency

22nd sighting in South Africa
Fluke of MRIWU-00131
MRIWU-00131 Confirmed in the catalog @108635
Dec 2, 2024 – Jan 25, 2025 · South Africa

South Africa · Dec 2024 – Jan 2025

73 m
Deepest dive
3:17
Longest dive
112
Dives
Sightings
11
Days between first and last sighting
54
Deepest dive on record
73 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Dec 2, 202459 m—43 m
Dec 4, 202439 m—31 m
Dec 4, 202441 m—36 m
Dec 17, 202461 m—19 m
Dec 28, 202452 m—44 m
Dec 29, 202456 m—37 m
Dec 31, 202477 m—47 m
Dec 31, 202477 m—59 m
Jan 5, 202584 m—73 m
Jan 19, 202563 m—42 m
Jan 25, 202569 m—58 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
Dec 2, 2024 — seafloor 59 m (measured), deepest dive 43 m (modelled)Dec 2Dec 4, 2024 — seafloor 39 m (measured), deepest dive 31 m (modelled)Dec 4Dec 4, 2024 — seafloor 41 m (measured), deepest dive 36 m (modelled)Dec 4Dec 17, 2024 — seafloor 61 m (measured), deepest dive 19 m (modelled)Dec 17Dec 28, 2024 — seafloor 52 m (measured), deepest dive 44 m (modelled)Dec 28Dec 29, 2024 — seafloor 56 m (measured), deepest dive 37 m (modelled)Dec 29Dec 31, 2024 — seafloor 77 m (measured), deepest dive 47 m (modelled)Dec 31Dec 31, 2024 — seafloor 77 m (measured), deepest dive 59 m (modelled)Dec 31Jan 5, 2025 — seafloor 84 m (measured), deepest dive 73 m (modelled)Jan 5Jan 19, 2025 — seafloor 63 m (measured), deepest dive 42 m (modelled)Jan 19Jan 25, 2025 — seafloor 69 m (measured), deepest dive 58 m (modelled)Jan 25

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

Dives

73 m
Deepest dive
3:17
Longest dive
112
Dives
22 m
Avg dive depth
11
Sightings
54
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010073 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (84 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.

Unlock with Risa Deep

Place

Where this happened · Jan 5, 2025

measured
Seafloor depth
84 m
Sea-surface temperature
—
Distance from shore
7.0 km

Across the residency · 11 sightings

measured
Seafloor depth
39 m – 84 m
Sea-surface temperature
—
Distance from shore
2.0 km – 16.0 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 11 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).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.