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

Sigma2 – Residency

4th sighting in Troms
Fluke of Sigma2
Sigma2 Confirmed in the catalog @97978
Nov 19 – Dec 6, 2023 · Troms

Troms · Nov – Dec 2023

185 m
Deepest dive
8:56
Longest dive
61
Dives
Sightings
4
Days between first and last sighting
17
Deepest dive on record
185 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 19, 2023165 m—135 m
Nov 26, 2023269 m—185 m
Nov 27, 2023337 m—25 m
Dec 6, 2023100 m—91 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 19, 2023 — seafloor 165 m (measured), deepest dive 135 m (modelled)Nov 19Nov 26, 2023 — seafloor 269 m (measured), deepest dive 185 m (modelled)Nov 26Nov 27, 2023 — seafloor 337 m (measured), deepest dive 25 m (modelled)Nov 27Dec 6, 2023 — seafloor 100 m (measured), deepest dive 91 m (modelled)Dec 6

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

Dives

185 m
Deepest dive
8:56
Longest dive
61
Dives
33 m
Avg dive depth
4
Sightings
17
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200185 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (269 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 26, 2023

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

Across the residency · 4 sightings

measured
Seafloor depth
100 m – 337 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.