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

HW-MN0800180 – Residency

8th sighting in South Africa
Fluke of HW-MN0800180
HW-MN0800180 Confirmed in the catalog @54093
Nov 7 – Dec 4, 2024 · South Africa

South Africa · Nov – Dec 2024

66 m
Deepest dive
3:10
Longest dive
71
Dives
Sightings
5
Days between first and last sighting
27
Deepest dive on record
66 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 7, 202455 m—32 m
Nov 30, 202480 m—64 m
Dec 2, 202459 m—37 m
Dec 3, 202479 m—66 m
Dec 4, 202439 m—26 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 7, 2024 — seafloor 55 m (measured), deepest dive 32 m (modelled)Nov 7Nov 30, 2024 — seafloor 80 m (measured), deepest dive 64 m (modelled)Nov 30Dec 2, 2024 — seafloor 59 m (measured), deepest dive 37 m (modelled)Dec 2Dec 3, 2024 — seafloor 79 m (measured), deepest dive 66 m (modelled)Dec 3Dec 4, 2024 — seafloor 39 m (measured), deepest dive 26 m (modelled)Dec 4

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

Dives

66 m
Deepest dive
3:10
Longest dive
71
Dives
19 m
Avg dive depth
5
Sightings
27
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010066 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.

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Place

Where this happened · Dec 3, 2024

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

Across the residency · 5 sightings

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