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

Big Blue – Residency

8th sighting in Antarctic Peninsula
Fluke of Big Blue
Big Blue Confirmed in the catalog @135301
Jan 17 – Mar 16, 2025 · Antarctic Peninsula

Antarctic Peninsula · Jan – Mar 2025

135 m
Deepest dive
4:24
Longest dive
89
Dives
Sightings
8
Days between first and last sighting
58
Deepest dive on record
135 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jan 17, 2025111 m—47 m
Jan 22, 202578 m—42 m
Feb 15, 2025102 m—90 m
Feb 18, 202558 m—51 m
Feb 21, 202510 m—9 m
Feb 27, 2025158 m—135 m
Mar 1, 202552 m—47 m
Mar 16, 2025119 m—19 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 17, 2025 — seafloor 111 m (measured), deepest dive 47 m (modelled)Jan 17Jan 22, 2025 — seafloor 78 m (measured), deepest dive 42 m (modelled)Jan 22Feb 15, 2025 — seafloor 102 m (measured), deepest dive 90 m (modelled)Feb 15Feb 18, 2025 — seafloor 58 m (measured), deepest dive 51 m (modelled)Feb 18Feb 21, 2025 — seafloor 10 m (measured), deepest dive 9 m (modelled)Feb 21Feb 27, 2025 — seafloor 158 m (measured), deepest dive 135 m (modelled)Feb 27Mar 1, 2025 — seafloor 52 m (measured), deepest dive 47 m (modelled)Mar 1Mar 16, 2025 — seafloor 119 m (measured), deepest dive 19 m (modelled)Mar 16

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

Dives

135 m
Deepest dive
4:24
Longest dive
89
Dives
21 m
Avg dive depth
8
Sightings
58
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150135 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (158 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 · Feb 27, 2025

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

Across the residency · 8 sightings

measured
Seafloor depth
10 m – 158 m
Sea-surface temperature
—
Distance from shore
1.0 km – 3.0 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 8 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.