Johnstone Strait & Broughton

Guardian – Residency

17th sighting in Johnstone Strait & Broughton
Guardian Confirmed in the catalog @7553
Jul 23 – Aug 21, 2025 · Johnstone Strait & Broughton

Johnstone Strait & Broughton · Jul – Aug 2025

—
Deepest dive
—
Longest dive
—
Dives
Sightings
4
Days between first and last sighting
29

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 23, 2025106 m——
Aug 6, 2025170 m——
Aug 19, 202577 m——
Aug 21, 2025131 m——

Seafloor and sea temperature measured · ✳ dives modelled

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Jul 23, 2025 — seafloor 106 m (measured), deepest dive — (modelled)Jul 23Aug 6, 2025 — seafloor 170 m (measured), deepest dive — (modelled)Aug 6Aug 19, 2025 — seafloor 77 m (measured), deepest dive — (modelled)Aug 19Aug 21, 2025 — seafloor 131 m (measured), deepest dive — (modelled)Aug 21

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

Dives

—
Deepest dive
—
Longest dive
—
Dives
—
Avg dive depth
4
Sightings
29
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
02550startdive sequence (illustrative)

Modelled from the published dive-behaviour distribution. 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 21, 2025

measured
Seafloor depth
131 m
Sea-surface temperature
—
Distance from shore
1.0 km

Across the residency · 4 sightings

measured
Seafloor depth
77 m – 170 m
Sea-surface temperature
—
Distance from shore
1.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

Source records

This activity is assembled from 4 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.