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

Equals – Residency

37th sighting in Chatham Strait
Fluke of Equals
Equals Confirmed in the catalog @5325
May 27 – Jul 13, 2026 · Chatham Strait

Chatham Strait, Early Summer

That eye found me again in these green cliffs, right on schedule.

105 m
Deepest dive
3:20
Longest dive
58
Dives
Sightings
3
Days between first and last sighting
46

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 27, 2026526 m8.3°C57 m
Jun 9, 202658 m9.4°C52 m
Jul 13, 2026117 m13.2°C105 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
May 27, 2026 — seafloor 526 m (measured), deepest dive 57 m (modelled)May 27Jun 9, 2026 — seafloor 58 m (measured), deepest dive 52 m (modelled)Jun 9Jul 13, 2026 — seafloor 117 m (measured), deepest dive 105 m (modelled)Jul 13

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

Dives

105 m
Deepest dive
3:20
Longest dive
58
Dives
30 m
Avg dive depth
3
Sightings
46
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150105 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (117 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 · Jul 13, 2026

measured
Seafloor depth
117 m
Sea-surface temperature
13.2°C
Distance from shore
1.0 km

Across the residency · 3 sightings

measured
Seafloor depth
58 m – 526 m
Sea-surface temperature
8.3°C – 13.2°C
Distance from shore
1.0 km – 3.0 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 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.