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

Sigma2 – Residency

11th sighting in Troms
Fluke of Sigma2
Sigma2 Confirmed in the catalog @97978
Nov 5 – 24, 2025 · Troms

Troms · Nov 2025

60 m
Deepest dive
2:44
Longest dive
65
Dives
Sightings
4
Days between first and last sighting
19

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 5, 202586 m—60 m
Nov 14, 2025117 m—52 m
Nov 23, 202570 m—60 m
Nov 24, 202570 m—46 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
Nov 5, 2025 — seafloor 86 m (measured), deepest dive 60 m (modelled)Nov 5Nov 14, 2025 — seafloor 117 m (measured), deepest dive 52 m (modelled)Nov 14Nov 23, 2025 — seafloor 70 m (measured), deepest dive 60 m (modelled)Nov 23Nov 24, 2025 — seafloor 70 m (measured), deepest dive 46 m (modelled)Nov 24

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

Dives

60 m
Deepest dive
2:44
Longest dive
65
Dives
23 m
Avg dive depth
4
Sightings
19
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010060 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (86 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 · Nov 5, 2025

measured
Seafloor depth
86 m
Sea-surface temperature
—
Distance from shore
—

Across the residency · 4 sightings

measured
Seafloor depth
70 m – 117 m
Sea-surface temperature
—
Distance from shore
—

Sources: GEBCO seafloor grid

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

Source records

This activity is assembled from 4 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.