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

Birch – Residency

6th sighting in Iceland
Fluke of Birch
Birch Confirmed in the catalog @73413
Jun 17 – Aug 31, 2021 · Iceland

Iceland · Jun – Aug 2021

41 m
Deepest dive
2:12
Longest dive
70
Dives
Sightings
6
Days between first and last sighting
75

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 17, 202148 m—41 m
Jun 22, 202126 m—14 m
Jul 5, 202126 m—16 m
Aug 11, 202126 m—23 m
Aug 12, 202126 m—22 m
Aug 31, 202126 m—21 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
Jun 17, 2021 — seafloor 48 m (measured), deepest dive 41 m (modelled)Jun 17Jun 22, 2021 — seafloor 26 m (measured), deepest dive 14 m (modelled)Jun 22Jul 5, 2021 — seafloor 26 m (measured), deepest dive 16 m (modelled)Jul 5Aug 11, 2021 — seafloor 26 m (measured), deepest dive 23 m (modelled)Aug 11Aug 12, 2021 — seafloor 26 m (measured), deepest dive 22 m (modelled)Aug 12Aug 31, 2021 — seafloor 26 m (measured), deepest dive 21 m (modelled)Aug 31

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

Dives

41 m
Deepest dive
2:12
Longest dive
70
Dives
13 m
Avg dive depth
6
Sightings
75
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255041 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (48 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 · Jun 17, 2021

measured
Seafloor depth
48 m
Sea-surface temperature
—
Distance from shore
12.0 km

Across the residency · 6 sightings

measured
Seafloor depth
26 m – 48 m
Sea-surface temperature
—
Distance from shore
1.0 km – 13.0 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 6 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.