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

HW-MN1308553 – Residency

4th sighting in Antarctic Peninsula
Fluke of HW-MN1308553
HW-MN1308553 Confirmed in the catalog @152537
Jan 21 – Mar 5, 2026 · Antarctic Peninsula

Antarctic Peninsula · Jan – Mar 2026

205 m
Deepest dive
6:56
Longest dive
41
Dives
Sightings
4
Days between first and last sighting
43
Deepest dive on record
205 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jan 21, 2026221 m2.8°C176 m
Jan 23, 2026366 m—205 m
Jan 29, 2026186 m—164 m
Mar 5, 2026186 m1.9°C89 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
Jan 21, 2026 — seafloor 221 m (measured), deepest dive 176 m (modelled)Jan 21Jan 23, 2026 — seafloor 366 m (measured), deepest dive 205 m (modelled)Jan 23Jan 29, 2026 — seafloor 186 m (measured), deepest dive 164 m (modelled)Jan 29Mar 5, 2026 — seafloor 186 m (measured), deepest dive 89 m (modelled)Mar 5

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

Dives

205 m
Deepest dive
6:56
Longest dive
41
Dives
39 m
Avg dive depth
4
Sightings
43
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0125250205 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (366 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 23, 2026

measured
Seafloor depth
366 m
Sea-surface temperature
—
Distance from shore
2.0 km

Across the residency · 4 sightings

measured
Seafloor depth
186 m – 366 m
Sea-surface temperature
1.9°C – 2.8°C
Distance from shore
1.0 km – 2.0 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 4 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.