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

Leonid – Residency

Fluke of Leonid
Leonid Confirmed in the catalog @16982
Aug 2 – Sep 13, 2024 · North Atlantic

North Atlantic · Aug – Sep 2024

34 m
Deepest dive
2:05
Longest dive
82
Dives
Sightings
5
Days between first and last sighting
42

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 2, 202435 m—29 m
Aug 26, 202440 m—34 m
Aug 26, 202436 m—33 m
Sep 2, 202440 m—33 m
Sep 13, 202439 m—30 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 2, 2024 — seafloor 35 m (measured), deepest dive 29 m (modelled)Aug 2Aug 26, 2024 — seafloor 40 m (measured), deepest dive 34 m (modelled)Aug 26Aug 26, 2024 — seafloor 36 m (measured), deepest dive 33 m (modelled)Aug 26Sep 2, 2024 — seafloor 40 m (measured), deepest dive 33 m (modelled)Sep 2Sep 13, 2024 — seafloor 39 m (measured), deepest dive 30 m (modelled)Sep 13

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

Dives

34 m
Deepest dive
2:05
Longest dive
82
Dives
16 m
Avg dive depth
5
Sightings
42
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255034 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (40 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 · Aug 26, 2024

measured
Seafloor depth
40 m
Sea-surface temperature
—
Distance from shore
15.0 km

Across the residency · 5 sightings

measured
Seafloor depth
35 m – 40 m
Sea-surface temperature
—
Distance from shore
14.0 km – 19.0 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 5 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.