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Chatham Strait

Flash – Residency

19th sighting in Chatham Strait
Fluke of Flash
Flash Confirmed in the catalog @11179
Jun 20 – Oct 6, 2021 · Chatham Strait

Chatham Strait · Jun – Oct 2021

109 m
Deepest dive
4:38
Longest dive
106
Dives
Sightings
13
Days between first and last sighting
108

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 20, 202141 m11.2°C29 m
Jun 28, 2021223 m12.0°C58 m
Jun 28, 2021223 m12.0°C103 m
Jun 29, 202144 m11.7°C38 m
Jul 8, 202149 m10.9°C38 m
Jul 9, 202181 m11.0°C42 m
Jul 19, 2021161 m12.6°C108 m
Jul 19, 202138 m12.7°C26 m
Aug 19, 202167 m13.0°C40 m
Aug 29, 2021127 m10.5°C63 m
Aug 30, 2021127 m10.8°C58 m
Aug 30, 2021127 m10.8°C109 m
Oct 6, 2021119 m7.9°C60 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 20, 2021 — seafloor 41 m (measured), deepest dive 29 m (modelled)Jun 20Jun 28, 2021 — seafloor 223 m (measured), deepest dive 58 m (modelled)Jun 28, 2021 — seafloor 223 m (measured), deepest dive 103 m (modelled)Jun 29, 2021 — seafloor 44 m (measured), deepest dive 38 m (modelled)Jun 29Jul 8, 2021 — seafloor 49 m (measured), deepest dive 38 m (modelled)Jul 9, 2021 — seafloor 81 m (measured), deepest dive 42 m (modelled)Jul 19, 2021 — seafloor 161 m (measured), deepest dive 108 m (modelled)Jul 19Jul 19, 2021 — seafloor 38 m (measured), deepest dive 26 m (modelled)Aug 19, 2021 — seafloor 67 m (measured), deepest dive 40 m (modelled)Aug 29, 2021 — seafloor 127 m (measured), deepest dive 63 m (modelled)Aug 29Aug 30, 2021 — seafloor 127 m (measured), deepest dive 58 m (modelled)Aug 30, 2021 — seafloor 127 m (measured), deepest dive 109 m (modelled)Oct 6, 2021 — seafloor 119 m (measured), deepest dive 60 m (modelled)Oct 6

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

Dives

109 m
Deepest dive
4:38
Longest dive
106
Dives
24 m
Avg dive depth
13
Sightings
108
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150109 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (127 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 30, 2021

measured
Seafloor depth
127 m
Sea-surface temperature
10.8°C
Distance from shore
2.0 km

Across the residency · 13 sightings

measured
Seafloor depth
38 m – 223 m
Sea-surface temperature
7.9°C – 13.0°C
Distance from shore
1.0 km – 2.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

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

Source records

This activity is assembled from 13 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.