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

Equals – Residency

30th sighting in Chatham Strait
Fluke of Equals
Equals Confirmed in the catalog @5325
Jun 26 – Aug 20, 2024 · Chatham Strait

Chatham Strait · Jun – Aug 2024

99 m
Deepest dive
3:29
Longest dive
87
Dives
Sightings
6
Days between first and last sighting
55

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 26, 202432 m9.8°C28 m
Jun 30, 202488 m11.3°C55 m
Jul 3, 202443 m11.0°C31 m
Jul 5, 202411 m10.7°C10 m
Aug 13, 202495 m12.9°C77 m
Aug 20, 2024526 m14.4°C99 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, 2024 — seafloor 32 m (measured), deepest dive 28 m (modelled)Jun 26Jun 30, 2024 — seafloor 88 m (measured), deepest dive 55 m (modelled)Jun 30Jul 3, 2024 — seafloor 43 m (measured), deepest dive 31 m (modelled)Jul 3Jul 5, 2024 — seafloor 11 m (measured), deepest dive 10 m (modelled)Jul 5Aug 13, 2024 — seafloor 95 m (measured), deepest dive 77 m (modelled)Aug 13Aug 20, 2024 — seafloor 526 m (measured), deepest dive 99 m (modelled)Aug 20

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

Dives

99 m
Deepest dive
3:29
Longest dive
87
Dives
22 m
Avg dive depth
6
Sightings
55
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010099 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (526 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 20, 2024

measured
Seafloor depth
526 m
Sea-surface temperature
14.4°C
Distance from shore
3.0 km

Across the residency · 6 sightings

measured
Seafloor depth
11 m – 526 m
Sea-surface temperature
9.8°C – 14.4°C
Distance from shore
1.0 km – 8.0 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 6 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.