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

Fangast – Residency

7th sighting in Chatham Strait
Fluke of Fangast
Fangast Confirmed in the catalog @19886
Jun 18 – Aug 21, 2021 · Chatham Strait

Chatham Strait · Jun – Aug 2021

91 m
Deepest dive
4:33
Longest dive
63
Dives
Sightings
5
Days between first and last sighting
64

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 18, 2021169 m—91 m
Jun 24, 2021130 m—61 m
Jul 10, 2021109 m—86 m
Aug 20, 2021111 m—29 m
Aug 21, 2021121 m—67 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 18, 2021 — seafloor 169 m (measured), deepest dive 91 m (modelled)Jun 18Jun 24, 2021 — seafloor 130 m (measured), deepest dive 61 m (modelled)Jun 24Jul 10, 2021 — seafloor 109 m (measured), deepest dive 86 m (modelled)Jul 10Aug 20, 2021 — seafloor 111 m (measured), deepest dive 29 m (modelled)Aug 20Aug 21, 2021 — seafloor 121 m (measured), deepest dive 67 m (modelled)Aug 21

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

Dives

91 m
Deepest dive
4:33
Longest dive
63
Dives
30 m
Avg dive depth
5
Sightings
64
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010091 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (169 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 18, 2021

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

Across the residency · 5 sightings

measured
Seafloor depth
109 m – 169 m
Sea-surface temperature
—
Distance from shore
1.0 km – 5.0 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.