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

HW-MN1305979 – Residency

8th sighting in Antarctic Peninsula
Fluke of HW-MN1305979
HW-MN1305979 Confirmed in the catalog @118137
Dec 13, 2025 – Feb 9, 2026 · Antarctic Peninsula

Antarctic Peninsula · Dec 2025 – Feb 2026

115 m
Deepest dive
4:18
Longest dive
61
Dives
Sightings
5
Days between first and last sighting
58

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 13, 2025109 m—92 m
Jan 9, 2026245 m3.0°C115 m
Jan 14, 2026276 m—88 m
Jan 15, 2026321 m—59 m
Feb 9, 2026228 m1.2°C63 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 13, 2025 — seafloor 109 m (measured), deepest dive 92 m (modelled)Dec 13Jan 9, 2026 — seafloor 245 m (measured), deepest dive 115 m (modelled)Jan 9Jan 14, 2026 — seafloor 276 m (measured), deepest dive 88 m (modelled)Jan 14Jan 15, 2026 — seafloor 321 m (measured), deepest dive 59 m (modelled)Jan 15Feb 9, 2026 — seafloor 228 m (measured), deepest dive 63 m (modelled)Feb 9

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

Dives

115 m
Deepest dive
4:18
Longest dive
61
Dives
30 m
Avg dive depth
5
Sightings
58
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150115 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (245 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 9, 2026

measured
Seafloor depth
245 m
Sea-surface temperature
3.0°C
Distance from shore
1.0 km

Across the residency · 5 sightings

measured
Seafloor depth
109 m – 321 m
Sea-surface temperature
1.2°C – 3.0°C
Distance from shore
1.0 km – 3.0 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 5 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.