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

HW-MN1308176 – Residency

2nd sighting in Antarctic Peninsula
Fluke of HW-MN1308176
HW-MN1308176 Confirmed in the catalog @149519
Dec 5 – 15, 2025 · Antarctic Peninsula

Antarctic Peninsula · Dec 2025

123 m
Deepest dive
3:43
Longest dive
15
Dives
Sightings
2
Days between first and last sighting
10
Deepest dive on record
123 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Dec 5, 2025138 m—123 m
Dec 15, 2025145 m—57 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 5, 2025 — seafloor 138 m (measured), deepest dive 123 m (modelled)Dec 5Dec 15, 2025 — seafloor 145 m (measured), deepest dive 57 m (modelled)Dec 15

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

Dives

123 m
Deepest dive
3:43
Longest dive
15
Dives
38 m
Avg dive depth
2
Sightings
10
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150123 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (138 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 5, 2025

measured
Seafloor depth
138 m
Sea-surface temperature
—
Distance from shore
1.0 km

Across the residency · 2 sightings

measured
Seafloor depth
138 m – 145 m
Sea-surface temperature
—
Distance from shore
1.0 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 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.