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

HW-MN0804274 – Residency

7th sighting in South Africa
Fluke of HW-MN0804274
HW-MN0804274 Confirmed in the catalog @127719
Nov 3, 2024 – Feb 21, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

71 m
Deepest dive
2:41
Longest dive
49
Dives
Sightings
7
Days between first and last sighting
110
Deepest dive on record
71 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 3, 202497 m—71 m
Nov 7, 202455 m—41 m
Dec 3, 202486 m—39 m
Jan 5, 202584 m—36 m
Jan 13, 202596 m—64 m
Feb 20, 202549 m—22 m
Feb 21, 202566 m—43 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 3, 2024 — seafloor 97 m (measured), deepest dive 71 m (modelled)Nov 3Nov 7, 2024 — seafloor 55 m (measured), deepest dive 41 m (modelled)Nov 7Dec 3, 2024 — seafloor 86 m (measured), deepest dive 39 m (modelled)Dec 3Jan 5, 2025 — seafloor 84 m (measured), deepest dive 36 m (modelled)Jan 5Jan 13, 2025 — seafloor 96 m (measured), deepest dive 64 m (modelled)Jan 13Feb 20, 2025 — seafloor 49 m (measured), deepest dive 22 m (modelled)Feb 20Feb 21, 2025 — seafloor 66 m (measured), deepest dive 43 m (modelled)Feb 21

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

Dives

71 m
Deepest dive
2:41
Longest dive
49
Dives
23 m
Avg dive depth
7
Sightings
110
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010071 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (97 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 3, 2024

measured
Seafloor depth
97 m
Sea-surface temperature
—
Distance from shore
11.0 km

Across the residency · 7 sightings

measured
Seafloor depth
49 m – 97 m
Sea-surface temperature
—
Distance from shore
3.0 km – 11.0 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 7 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.