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

HW-MN1307268 – Residency

4th sighting in Antarctic Peninsula
Fluke of HW-MN1307268
HW-MN1307268 Confirmed in the catalog @136496
Feb 17 – Mar 9, 2026 · Antarctic Peninsula

Antarctic Peninsula · Feb – Mar 2026

56 m
Deepest dive
2:02
Longest dive
23
Dives
Sightings
3
Days between first and last sighting
20

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 17, 202688 m1.7°C55 m
Mar 6, 2026-1 m2.1°C—
Mar 9, 202673 m2.5°C56 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
Feb 17, 2026 — seafloor 88 m (measured), deepest dive 55 m (modelled)Feb 17Mar 6, 2026 — seafloor -1 m (measured), deepest dive — (modelled)Mar 6Mar 9, 2026 — seafloor 73 m (measured), deepest dive 56 m (modelled)Mar 9

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

Dives

56 m
Deepest dive
2:02
Longest dive
23
Dives
26 m
Avg dive depth
3
Sightings
20
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010056 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (73 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 · Mar 9, 2026

measured
Seafloor depth
73 m
Sea-surface temperature
2.5°C
Distance from shore
5.0 km

Across the residency · 3 sightings

measured
Seafloor depth
-1 m – 88 m
Sea-surface temperature
1.7°C – 2.5°C
Distance from shore
2.0 km – 5.0 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 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.