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South Africa

HW-MN0804156 – Residency

18th sighting in South Africa
Fluke of HW-MN0804156
HW-MN0804156 Confirmed in the catalog @126741
Oct 10, 2024 – Feb 21, 2025 · South Africa

South Africa · Oct 2024 – Feb 2025

65 m
Deepest dive
2:37
Longest dive
203
Dives
Sightings
18
Days between first and last sighting
134

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Oct 10, 202415 m—13 m
Nov 30, 202480 m—52 m
Dec 10, 202472 m—61 m
Dec 11, 202474 m—65 m
Dec 11, 202460 m—53 m
Dec 12, 202441 m—28 m
Dec 14, 202478 m—33 m
Dec 15, 202479 m—45 m
Dec 17, 202469 m—61 m
Dec 19, 202459 m—39 m
Jan 5, 202543 m—36 m
Jan 8, 202587 m—34 m
Jan 25, 202569 m—57 m
Feb 12, 202561 m—54 m
Feb 19, 202544 m—29 m
Feb 20, 202549 m—31 m
Feb 20, 202550 m—44 m
Feb 21, 202556 m—49 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
Oct 10, 2024 — seafloor 15 m (measured), deepest dive 13 m (modelled)Oct 10Nov 30, 2024 — seafloor 80 m (measured), deepest dive 52 m (modelled)Dec 10, 2024 — seafloor 72 m (measured), deepest dive 61 m (modelled)Dec 11, 2024 — seafloor 74 m (measured), deepest dive 65 m (modelled)Dec 11Dec 11, 2024 — seafloor 60 m (measured), deepest dive 53 m (modelled)Dec 12, 2024 — seafloor 41 m (measured), deepest dive 28 m (modelled)Dec 14, 2024 — seafloor 78 m (measured), deepest dive 33 m (modelled)Dec 14Dec 15, 2024 — seafloor 79 m (measured), deepest dive 45 m (modelled)Dec 17, 2024 — seafloor 69 m (measured), deepest dive 61 m (modelled)Dec 19, 2024 — seafloor 59 m (measured), deepest dive 39 m (modelled)Dec 19Jan 5, 2025 — seafloor 43 m (measured), deepest dive 36 m (modelled)Jan 8, 2025 — seafloor 87 m (measured), deepest dive 34 m (modelled)Jan 25, 2025 — seafloor 69 m (measured), deepest dive 57 m (modelled)Jan 25Feb 12, 2025 — seafloor 61 m (measured), deepest dive 54 m (modelled)Feb 19, 2025 — seafloor 44 m (measured), deepest dive 29 m (modelled)Feb 20, 2025 — seafloor 49 m (measured), deepest dive 31 m (modelled)Feb 20Feb 20, 2025 — seafloor 50 m (measured), deepest dive 44 m (modelled)Feb 21, 2025 — seafloor 56 m (measured), deepest dive 49 m (modelled)

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

Dives

65 m
Deepest dive
2:37
Longest dive
203
Dives
19 m
Avg dive depth
18
Sightings
134
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (74 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 11, 2024

measured
Seafloor depth
74 m
Sea-surface temperature
—
Distance from shore
6.0 km

Across the residency · 18 sightings

measured
Seafloor depth
15 m – 87 m
Sea-surface temperature
—
Distance from shore
2.0 km – 14.0 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 18 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.