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

HW-MN0802841 – Residency

8th sighting in South Africa
Fluke of HW-MN0802841
HW-MN0802841 Confirmed in the catalog @110003
Nov 17 – Dec 31, 2024 · South Africa

South Africa · Nov – Dec 2024

72 m
Deepest dive
2:34
Longest dive
44
Dives
Sightings
5
Days between first and last sighting
44
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, 202480 m—72 m
Dec 3, 202467 m—60 m
Dec 17, 202469 m—59 m
Dec 29, 202456 m—33 m
Dec 31, 202477 m—34 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 80 m (measured), deepest dive 72 m (modelled)Nov 17Dec 3, 2024 — seafloor 67 m (measured), deepest dive 60 m (modelled)Dec 3Dec 17, 2024 — seafloor 69 m (measured), deepest dive 59 m (modelled)Dec 17Dec 29, 2024 — seafloor 56 m (measured), deepest dive 33 m (modelled)Dec 29Dec 31, 2024 — seafloor 77 m (measured), deepest dive 34 m (modelled)Dec 31

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

Dives

72 m
Deepest dive
2:34
Longest dive
44
Dives
29 m
Avg dive depth
5
Sightings
44
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 (80 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
80 m
Sea-surface temperature
—
Distance from shore
6.0 km

Across the residency · 5 sightings

measured
Seafloor depth
56 m – 80 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 5 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.