Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Antarctic Peninsula

HW-MN1305831 – Residency

3rd sighting in Antarctic Peninsula
Fluke of HW-MN1305831
HW-MN1305831 Confirmed in the catalog @116328
Dec 4, 2025 – Jan 15, 2026 · Antarctic Peninsula

Antarctic Peninsula · Dec 2025 – Jan 2026

83 m
Deepest dive
3:08
Longest dive
33
Dives
Sightings
3
Days between first and last sighting
42
Deepest dive on record
83 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 4, 2025343 m—74 m
Dec 9, 2025-63 m——
Jan 15, 20264,109 m3.8°C83 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 4, 2025 — seafloor 343 m (measured), deepest dive 74 m (modelled)Dec 4Dec 9, 2025 — seafloor -63 m (measured), deepest dive — (modelled)Dec 9Jan 15, 2026 — seafloor 4,109 m (measured), deepest dive 83 m (modelled)Jan 15

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

Dives

83 m
Deepest dive
3:08
Longest dive
33
Dives
29 m
Avg dive depth
3
Sightings
42
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010083 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (4,109 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 15, 2026

measured
Seafloor depth
4,109 m
Sea-surface temperature
3.8°C
Distance from shore
—

Across the residency · 3 sightings

measured
Seafloor depth
-63 m – 4,109 m
Sea-surface temperature
3.8°C
Distance from shore
1.0 km – 2.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature

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.