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

Tunna – Residency

4th sighting in Iceland
Fluke of Tunna
Tunna Confirmed in the catalog @124095
Jul 7 – 10, 2024 · Iceland

Iceland · Jul 2024

61 m
Deepest dive
2:23
Longest dive
61
Dives
Sightings
4
Days between first and last sighting
3
Deepest dive on record
61 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 7, 202482 m—59 m
Jul 8, 2024191 m—36 m
Jul 9, 2024147 m—61 m
Jul 10, 2024179 m—54 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
Jul 7, 2024 — seafloor 82 m (measured), deepest dive 59 m (modelled)Jul 7Jul 8, 2024 — seafloor 191 m (measured), deepest dive 36 m (modelled)Jul 8Jul 9, 2024 — seafloor 147 m (measured), deepest dive 61 m (modelled)Jul 9Jul 10, 2024 — seafloor 179 m (measured), deepest dive 54 m (modelled)Jul 10

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

Dives

61 m
Deepest dive
2:23
Longest dive
61
Dives
21 m
Avg dive depth
4
Sightings
3
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010061 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (147 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 · Jul 9, 2024

measured
Seafloor depth
147 m
Sea-surface temperature
—
Distance from shore
5.0 km

Across the residency · 4 sightings

measured
Seafloor depth
82 m – 191 m
Sea-surface temperature
—
Distance from shore
3.0 km – 8.0 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 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.