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

Мазай – Residency

2nd sighting in Chukotka
Fluke of Мазай
Мазай Confirmed in the catalog @101343
Oct 10 – 17, 2023 · Chukotka

Chukotka · Oct 2023

45 m
Deepest dive
1:58
Longest dive
32
Dives
Sightings
2
Days between first and last sighting
7

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Oct 10, 202382 m—45 m
Oct 17, 202378 m—24 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
Oct 10, 2023 — seafloor 82 m (measured), deepest dive 45 m (modelled)Oct 10Oct 17, 2023 — seafloor 78 m (measured), deepest dive 24 m (modelled)Oct 17

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

Dives

45 m
Deepest dive
1:58
Longest dive
32
Dives
15 m
Avg dive depth
2
Sightings
7
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255045 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (82 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 · Oct 10, 2023

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

Across the residency · 2 sightings

measured
Seafloor depth
78 m – 82 m
Sea-surface temperature
—
Distance from shore
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 2 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.