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

AHWC-4135 – Residency

6th sighting in Antarctic Peninsula
Fluke of AHWC-4135
AHWC-4135 Confirmed in the catalog @1582
Jan 11 – Mar 3, 2026 · Antarctic Peninsula

Antarctic Peninsula · Jan – Mar 2026

229 m
Deepest dive
9:39
Longest dive
43
Dives
Sightings
2
Days between first and last sighting
51
Deepest dive on record
229 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jan 11, 2026313 m—163 m
Mar 3, 2026764 m0.4°C229 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 11, 2026 — seafloor 313 m (measured), deepest dive 163 m (modelled)Jan 11Mar 3, 2026 — seafloor 764 m (measured), deepest dive 229 m (modelled)Mar 3

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

Dives

229 m
Deepest dive
9:39
Longest dive
43
Dives
42 m
Avg dive depth
2
Sightings
51
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0125250229 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (764 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 3, 2026

measured
Seafloor depth
764 m
Sea-surface temperature
0.4°C
Distance from shore
18.0 km

Across the residency · 2 sightings

measured
Seafloor depth
313 m – 764 m
Sea-surface temperature
0.4°C
Distance from shore
2.0 km – 18.0 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.