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Chatham Strait

Spinelli – Residency

9th sighting in Chatham Strait
Fluke of Spinelli
Spinelli Confirmed in the catalog @26044
Jul 26 – Aug 19, 2026 · Chatham Strait

Herring Never Disappoint

Chatham fed me well this stretch, showed up morning after morning to prove it.

138 m
Deepest dive
4:18
Longest dive
84
Dives
Sightings
7
Days between first and last sighting
24

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 26, 202672 m13.1°C63 m
Jul 27, 2026299 m12.9°C138 m
Aug 1, 2026303 m12.9°C113 m
Aug 10, 2026332 m14.2°C25 m
Aug 11, 2026187 m14.4°C46 m
Aug 15, 202691 m14.6°C28 m
Aug 19, 2026222 m14.6°C69 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 26, 2026 — seafloor 72 m (measured), deepest dive 63 m (modelled)Jul 26Jul 27, 2026 — seafloor 299 m (measured), deepest dive 138 m (modelled)Jul 27Aug 1, 2026 — seafloor 303 m (measured), deepest dive 113 m (modelled)Aug 1Aug 10, 2026 — seafloor 332 m (measured), deepest dive 25 m (modelled)Aug 10Aug 11, 2026 — seafloor 187 m (measured), deepest dive 46 m (modelled)Aug 11Aug 15, 2026 — seafloor 91 m (measured), deepest dive 28 m (modelled)Aug 15Aug 19, 2026 — seafloor 222 m (measured), deepest dive 69 m (modelled)Aug 19

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

Dives

138 m
Deepest dive
4:18
Longest dive
84
Dives
26 m
Avg dive depth
7
Sightings
24
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150138 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (299 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 27, 2026

measured
Seafloor depth
299 m
Sea-surface temperature
12.9°C
Distance from shore
3.0 km

Across the residency · 7 sightings

measured
Seafloor depth
72 m – 332 m
Sea-surface temperature
12.9°C – 14.6°C
Distance from shore
1.0 km – 5.0 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 7 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.