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

HW-MN1309127 – Residency

2nd sighting in Antarctic Peninsula
Fluke of HW-MN1309127
HW-MN1309127 Confirmed in the catalog @156274
Feb 25 – Mar 23, 2026 · Antarctic Peninsula

Antarctic Peninsula · Feb – Mar 2026

138 m
Deepest dive
5:04
Longest dive
24
Dives
Sightings
2
Days between first and last sighting
26
Deepest dive on record
138 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 25, 2026311 m1.8°C88 m
Mar 23, 2026352 m2.3°C138 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 25, 2026 — seafloor 311 m (measured), deepest dive 88 m (modelled)Feb 25Mar 23, 2026 — seafloor 352 m (measured), deepest dive 138 m (modelled)Mar 23

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

Dives

138 m
Deepest dive
5:04
Longest dive
24
Dives
31 m
Avg dive depth
2
Sightings
26
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150138 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (352 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 23, 2026

measured
Seafloor depth
352 m
Sea-surface temperature
2.3°C
Distance from shore
1.0 km

Across the residency · 2 sightings

measured
Seafloor depth
311 m – 352 m
Sea-surface temperature
1.8°C – 2.3°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 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.