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

HW-MN0804253 – Residency

2nd sighting in South Africa
Fluke of HW-MN0804253
HW-MN0804253 Confirmed in the catalog @127698
Nov 6 – Dec 29, 2024 · South Africa

South Africa · Nov – Dec 2024

45 m
Deepest dive
2:30
Longest dive
52
Dives
Sightings
3
Days between first and last sighting
53

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 6, 202480 m—40 m
Dec 29, 202429 m—25 m
Dec 29, 202456 m—45 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 6, 2024 — seafloor 80 m (measured), deepest dive 40 m (modelled)Nov 6Dec 29, 2024 — seafloor 29 m (measured), deepest dive 25 m (modelled)Dec 29Dec 29, 2024 — seafloor 56 m (measured), deepest dive 45 m (modelled)Dec 29

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

Dives

45 m
Deepest dive
2:30
Longest dive
52
Dives
18 m
Avg dive depth
3
Sightings
53
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255045 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (56 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 · Dec 29, 2024

measured
Seafloor depth
56 m
Sea-surface temperature
—
Distance from shore
3.0 km

Across the residency · 3 sightings

measured
Seafloor depth
29 m – 80 m
Sea-surface temperature
—
Distance from shore
3.0 km – 21.0 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 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.