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

HW-MN0804225 – Residency

3rd sighting in South Africa
Fluke of HW-MN0804225
HW-MN0804225 Confirmed in the catalog @127662
Nov 5, 2024 – Feb 21, 2025 · South Africa

South Africa · Nov 2024 – Feb 2025

59 m
Deepest dive
3:00
Longest dive
68
Dives
Sightings
3
Days between first and last sighting
108
Deepest dive on record
59 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 5, 202460 m—53 m
Jan 14, 202581 m—59 m
Feb 21, 202567 m—58 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 5, 2024 — seafloor 60 m (measured), deepest dive 53 m (modelled)Nov 5Jan 14, 2025 — seafloor 81 m (measured), deepest dive 59 m (modelled)Jan 14Feb 21, 2025 — seafloor 67 m (measured), deepest dive 58 m (modelled)Feb 21

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

Dives

59 m
Deepest dive
3:00
Longest dive
68
Dives
20 m
Avg dive depth
3
Sightings
108
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010059 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (81 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 · Jan 14, 2025

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

Across the residency · 3 sightings

measured
Seafloor depth
60 m – 81 m
Sea-surface temperature
—
Distance from shore
2.0 km – 9.0 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.