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

HW-MN0801686 – Residency

4th sighting in South Africa
Fluke of HW-MN0801686
HW-MN0801686 Confirmed in the catalog @85834
Nov 12 – Dec 21, 2022 · South Africa

South Africa · Nov – Dec 2022

59 m
Deepest dive
2:21
Longest dive
45
Dives
Sightings
4
Days between first and last sighting
39
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 12, 202280 m—59 m
Dec 18, 202260 m—49 m
Dec 20, 202267 m—43 m
Dec 21, 202263 m—46 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 12, 2022 — seafloor 80 m (measured), deepest dive 59 m (modelled)Nov 12Dec 18, 2022 — seafloor 60 m (measured), deepest dive 49 m (modelled)Dec 18Dec 20, 2022 — seafloor 67 m (measured), deepest dive 43 m (modelled)Dec 20Dec 21, 2022 — seafloor 63 m (measured), deepest dive 46 m (modelled)Dec 21

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

Dives

59 m
Deepest dive
2:21
Longest dive
45
Dives
17 m
Avg dive depth
4
Sightings
39
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 (80 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 12, 2022

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

Across the residency · 4 sightings

measured
Seafloor depth
60 m – 80 m
Sea-surface temperature
—
Distance from shore
2.0 km – 3.0 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.