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

HW-MN1307135 – Residency

6th sighting in Antarctic Peninsula
Fluke of HW-MN1307135
HW-MN1307135 Confirmed in the catalog @135508
Dec 4, 2025 – Feb 24, 2026 · Antarctic Peninsula

Antarctic Peninsula · Dec 2025 – Feb 2026

156 m
Deepest dive
6:02
Longest dive
88
Dives
Sightings
5
Days between first and last sighting
82
Deepest dive on record
156 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 4, 2025182 m—154 m
Dec 15, 2025235 m—156 m
Dec 16, 2025108 m—86 m
Feb 20, 2026146 m—117 m
Feb 24, 2026214 m—106 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 4, 2025 — seafloor 182 m (measured), deepest dive 154 m (modelled)Dec 4Dec 15, 2025 — seafloor 235 m (measured), deepest dive 156 m (modelled)Dec 15Dec 16, 2025 — seafloor 108 m (measured), deepest dive 86 m (modelled)Dec 16Feb 20, 2026 — seafloor 146 m (measured), deepest dive 117 m (modelled)Feb 20Feb 24, 2026 — seafloor 214 m (measured), deepest dive 106 m (modelled)Feb 24

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

Dives

156 m
Deepest dive
6:02
Longest dive
88
Dives
31 m
Avg dive depth
5
Sightings
82
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200156 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (235 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 · Dec 15, 2025

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

Across the residency · 5 sightings

measured
Seafloor depth
108 m – 235 m
Sea-surface temperature
—
Distance from shore
1.0 km – 5.0 km

Sources: GEBCO seafloor grid · 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.