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

HW-MN0401442 – Residency

11th sighting in Clarence Strait
Fluke of HW-MN0401442
HW-MN0401442 Confirmed in the catalog @95311
Aug 4 – 27, 2026 · Clarence Strait

August in the Channels

Herring running thick, shutter finding me right where I like it.

69 m
Deepest dive
2:31
Longest dive
46
Dives
Sightings
5
Days between first and last sighting
23

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 4, 2026126 m12.8°C69 m
Aug 9, 2026277 m12.8°C35 m
Aug 22, 202613 m14.2°C12 m
Aug 25, 202610 m14.6°C8 m
Aug 27, 202642 m14.5°C35 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
Aug 4, 2026 — seafloor 126 m (measured), deepest dive 69 m (modelled)Aug 4Aug 9, 2026 — seafloor 277 m (measured), deepest dive 35 m (modelled)Aug 9Aug 22, 2026 — seafloor 13 m (measured), deepest dive 12 m (modelled)Aug 22Aug 25, 2026 — seafloor 10 m (measured), deepest dive 8 m (modelled)Aug 25Aug 27, 2026 — seafloor 42 m (measured), deepest dive 35 m (modelled)Aug 27

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

Dives

69 m
Deepest dive
2:31
Longest dive
46
Dives
15 m
Avg dive depth
5
Sightings
23
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010069 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (126 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 4, 2026

measured
Seafloor depth
126 m
Sea-surface temperature
12.8°C
Distance from shore
2.0 km

Across the residency · 5 sightings

measured
Seafloor depth
10 m – 277 m
Sea-surface temperature
12.8°C – 14.6°C
Distance from shore
2.0 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 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.