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

Coccyzs – Residency

28th sighting in Chatham Strait
Fluke of Coccyzs
Coccyzs Confirmed in the catalog @22278
Jul 23 – 31, 2026 · Chatham Strait

Chatham in July

Herring thick, water green, this bay just keeps feeding me.

71 m
Deepest dive
2:15
Longest dive
9
Dives
Sightings
2
Days between first and last sighting
8

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 23, 202688 m13.2°C30 m
Jul 31, 202680 m12.8°C71 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
Jul 23, 2026 — seafloor 88 m (measured), deepest dive 30 m (modelled)Jul 23Jul 31, 2026 — seafloor 80 m (measured), deepest dive 71 m (modelled)Jul 31

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

Dives

71 m
Deepest dive
2:15
Longest dive
9
Dives
34 m
Avg dive depth
2
Sightings
8
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010071 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (80 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 31, 2026

measured
Seafloor depth
80 m
Sea-surface temperature
12.8°C
Distance from shore
—

Across the residency · 2 sightings

measured
Seafloor depth
80 m – 88 m
Sea-surface temperature
12.8°C – 13.2°C
Distance from shore
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 2 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.