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

HW-MN0801695 – Residency

8th sighting in South Africa
Fluke of HW-MN0801695
HW-MN0801695 Confirmed in the catalog @86505
Dec 17, 2023 – Jan 21, 2024 · South Africa

South Africa · Dec 2023 – Jan 2024

76 m
Deepest dive
2:51
Longest dive
41
Dives
Sightings
4
Days between first and last sighting
35
Deepest dive on record
76 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 17, 202356 m—49 m
Jan 7, 202480 m—66 m
Jan 11, 202494 m—76 m
Jan 21, 202485 m—65 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
Dec 17, 2023 — seafloor 56 m (measured), deepest dive 49 m (modelled)Dec 17Jan 7, 2024 — seafloor 80 m (measured), deepest dive 66 m (modelled)Jan 7Jan 11, 2024 — seafloor 94 m (measured), deepest dive 76 m (modelled)Jan 11Jan 21, 2024 — seafloor 85 m (measured), deepest dive 65 m (modelled)Jan 21

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

Dives

76 m
Deepest dive
2:51
Longest dive
41
Dives
28 m
Avg dive depth
4
Sightings
35
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010076 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (94 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 11, 2024

measured
Seafloor depth
94 m
Sea-surface temperature
—
Distance from shore
7.0 km

Across the residency · 4 sightings

measured
Seafloor depth
56 m – 94 m
Sea-surface temperature
—
Distance from shore
4.0 km – 13.0 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 4 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.