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

HW-MN1305379 – Residency

4th sighting in Antarctic Peninsula
Fluke of HW-MN1305379
HW-MN1305379 Confirmed in the catalog @113151
Dec 4, 2025 – Feb 23, 2026 · Antarctic Peninsula

Antarctic Peninsula · Dec 2025 – Feb 2026

132 m
Deepest dive
5:28
Longest dive
76
Dives
Sightings
3
Days between first and last sighting
81

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 4, 2025286 m—132 m
Feb 2, 202689 m1.9°C49 m
Feb 23, 2026332 m1.8°C107 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 286 m (measured), deepest dive 132 m (modelled)Dec 4Feb 2, 2026 — seafloor 89 m (measured), deepest dive 49 m (modelled)Feb 2Feb 23, 2026 — seafloor 332 m (measured), deepest dive 107 m (modelled)Feb 23

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

Dives

132 m
Deepest dive
5:28
Longest dive
76
Dives
23 m
Avg dive depth
3
Sightings
81
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150132 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (286 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 4, 2025

measured
Seafloor depth
286 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 3 sightings

measured
Seafloor depth
89 m – 332 m
Sea-surface temperature
1.8°C – 1.9°C
Distance from shore
1.0 km – 4.0 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.