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

SEAK-0973 – Residency

25th sighting in Chatham Strait
Fluke of SEAK-0973
SEAK-0973 Confirmed in the catalog @16867
Jun 30 – Aug 8, 2024 · Chatham Strait

Chatham Strait · Jun – Aug 2024

61 m
Deepest dive
2:10
Longest dive
26
Dives
Sightings
5
Days between first and last sighting
39

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 30, 2024121 m11.3°C19 m
Jul 3, 202451 m10.3°C27 m
Jul 5, 202411 m10.7°C7 m
Jul 9, 202460 m12.1°C48 m
Aug 8, 202478 m12.9°C61 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 30, 2024 — seafloor 121 m (measured), deepest dive 19 m (modelled)Jun 30Jul 3, 2024 — seafloor 51 m (measured), deepest dive 27 m (modelled)Jul 3Jul 5, 2024 — seafloor 11 m (measured), deepest dive 7 m (modelled)Jul 5Jul 9, 2024 — seafloor 60 m (measured), deepest dive 48 m (modelled)Jul 9Aug 8, 2024 — seafloor 78 m (measured), deepest dive 61 m (modelled)Aug 8

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

Dives

61 m
Deepest dive
2:10
Longest dive
26
Dives
16 m
Avg dive depth
5
Sightings
39
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010061 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (78 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 8, 2024

measured
Seafloor depth
78 m
Sea-surface temperature
12.9°C
Distance from shore
2.0 km

Across the residency · 5 sightings

measured
Seafloor depth
11 m – 121 m
Sea-surface temperature
10.3°C – 12.9°C
Distance from shore
1.0 km – 9.0 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 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.