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

Leto – Residency

11th sighting in Chukotka
Fluke of Leto
Leto Confirmed in the catalog @52665
Aug 11 – Sep 10, 2024 · Chukotka

Chukotka · Aug – Sep 2024

77 m
Deepest dive
3:07
Longest dive
36
Dives
Sightings
3
Days between first and last sighting
29
Deepest dive on record
77 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 11, 20246 m—4 m
Sep 5, 202484 m—77 m
Sep 10, 202486 m—76 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
Aug 11, 2024 — seafloor 6 m (measured), deepest dive 4 m (modelled)Aug 11Sep 5, 2024 — seafloor 84 m (measured), deepest dive 77 m (modelled)Sep 5Sep 10, 2024 — seafloor 86 m (measured), deepest dive 76 m (modelled)Sep 10

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

Dives

77 m
Deepest dive
3:07
Longest dive
36
Dives
17 m
Avg dive depth
3
Sightings
29
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010077 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (84 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 · Sep 5, 2024

measured
Seafloor depth
84 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 3 sightings

measured
Seafloor depth
6 m – 86 m
Sea-surface temperature
—
Distance from shore
1.0 km – 4.0 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 3 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.