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

Mosaic – Residency

18th sighting in Chatham Strait
Fluke of Mosaic
Mosaic Confirmed in the catalog @5660
Jun 26 – Aug 6, 2023 · Chatham Strait

Chatham Strait · Jun – Aug 2023

80 m
Deepest dive
3:06
Longest dive
39
Dives
Sightings
3
Days between first and last sighting
42

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 26, 2023190 m—80 m
Aug 3, 202372 m—62 m
Aug 6, 2023198 m—53 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 26, 2023 — seafloor 190 m (measured), deepest dive 80 m (modelled)Jun 26Aug 3, 2023 — seafloor 72 m (measured), deepest dive 62 m (modelled)Aug 3Aug 6, 2023 — seafloor 198 m (measured), deepest dive 53 m (modelled)Aug 6

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

Dives

80 m
Deepest dive
3:06
Longest dive
39
Dives
26 m
Avg dive depth
3
Sightings
42
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010080 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (190 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 26, 2023

measured
Seafloor depth
190 m
Sea-surface temperature
—
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
72 m – 198 m
Sea-surface temperature
—
Distance from shore
1.0 km – 3.0 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.