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

HW-MN1308541 – Residency

2nd sighting in Antarctic Peninsula
Fluke of HW-MN1308541
HW-MN1308541 Confirmed in the catalog @152525
Dec 31, 2025 – Jan 11, 2026 · Antarctic Peninsula

Antarctic Peninsula · Dec 2025 – Jan 2026

86 m
Deepest dive
2:52
Longest dive
9
Dives
Sightings
2
Days between first and last sighting
11
Deepest dive on record
86 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 31, 2025108 m2.2°C86 m
Jan 11, 2026-112 m2.6°C—

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 31, 2025 — seafloor 108 m (measured), deepest dive 86 m (modelled)Dec 31Jan 11, 2026 — seafloor -112 m (measured), deepest dive — (modelled)Jan 11

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

Dives

86 m
Deepest dive
2:52
Longest dive
9
Dives
32 m
Avg dive depth
2
Sightings
11
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010086 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (108 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 31, 2025

measured
Seafloor depth
108 m
Sea-surface temperature
2.2°C
Distance from shore
1.0 km

Across the residency · 2 sightings

measured
Seafloor depth
-112 m – 108 m
Sea-surface temperature
2.2°C – 2.6°C
Distance from shore
1.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance

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

Source records

This activity is assembled from 2 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.