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

HW-MN0800172 – Residency

15th sighting in South Africa
Fluke of HW-MN0800172
HW-MN0800172 Confirmed in the catalog @54085
Nov 30 – Dec 17, 2024 · South Africa

South Africa · Nov – Dec 2024

62 m
Deepest dive
2:42
Longest dive
96
Dives
Sightings
8
Days between first and last sighting
17

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Nov 30, 202477 m—24 m
Dec 2, 202459 m—52 m
Dec 3, 202479 m—35 m
Dec 4, 202439 m—33 m
Dec 11, 202460 m—51 m
Dec 14, 202478 m—31 m
Dec 15, 202479 m—62 m
Dec 17, 202469 m—48 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 30, 2024 — seafloor 77 m (measured), deepest dive 24 m (modelled)Nov 30Dec 2, 2024 — seafloor 59 m (measured), deepest dive 52 m (modelled)Dec 2Dec 3, 2024 — seafloor 79 m (measured), deepest dive 35 m (modelled)Dec 3Dec 4, 2024 — seafloor 39 m (measured), deepest dive 33 m (modelled)Dec 4Dec 11, 2024 — seafloor 60 m (measured), deepest dive 51 m (modelled)Dec 11Dec 14, 2024 — seafloor 78 m (measured), deepest dive 31 m (modelled)Dec 14Dec 15, 2024 — seafloor 79 m (measured), deepest dive 62 m (modelled)Dec 15Dec 17, 2024 — seafloor 69 m (measured), deepest dive 48 m (modelled)Dec 17

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

Dives

62 m
Deepest dive
2:42
Longest dive
96
Dives
20 m
Avg dive depth
8
Sightings
17
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010062 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.

Unlock with Risa Deep

Place

Where this happened · Dec 15, 2024

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

Across the residency · 8 sightings

measured
Seafloor depth
39 m – 79 m
Sea-surface temperature
—
Distance from shore
2.0 km – 4.0 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).

Happywhale runs on donations: support Happywhale →

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