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

HW-MN0800399 – Residency

5th sighting in South Africa
Fluke of HW-MN0800399
HW-MN0800399 Confirmed in the catalog @71537
Nov 8 – Dec 12, 2024 · South Africa

South Africa · Nov – Dec 2024

58 m
Deepest dive
2:15
Longest dive
43
Dives
Sightings
6
Days between first and last sighting
34
Deepest dive on record
58 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 8, 202477 m—58 m
Nov 25, 202446 m—41 m
Dec 3, 202441 m—22 m
Dec 3, 202464 m—20 m
Dec 12, 202441 m—32 m
Dec 12, 202442 m—35 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 8, 2024 — seafloor 77 m (measured), deepest dive 58 m (modelled)Nov 8Nov 25, 2024 — seafloor 46 m (measured), deepest dive 41 m (modelled)Nov 25Dec 3, 2024 — seafloor 41 m (measured), deepest dive 22 m (modelled)Dec 3Dec 3, 2024 — seafloor 64 m (measured), deepest dive 20 m (modelled)Dec 3Dec 12, 2024 — seafloor 41 m (measured), deepest dive 32 m (modelled)Dec 12Dec 12, 2024 — seafloor 42 m (measured), deepest dive 35 m (modelled)Dec 12

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

Dives

58 m
Deepest dive
2:15
Longest dive
43
Dives
20 m
Avg dive depth
6
Sightings
34
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010058 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (77 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 8, 2024

measured
Seafloor depth
77 m
Sea-surface temperature
—
Distance from shore
21.0 km

Across the residency · 6 sightings

measured
Seafloor depth
41 m – 77 m
Sea-surface temperature
—
Distance from shore
2.0 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 6 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.