Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Lynn Canal & Stephens Passage

Voldemort – Residency

5th sighting in Lynn Canal & Stephens Passage
Fluke of Voldemort
Voldemort Confirmed in the catalog @26860
May 9 – Aug 7, 2021 · Lynn Canal & Stephens Passage

Lynn Canal & Stephens Passage · May – Aug 2021

81 m
Deepest dive
3:24
Longest dive
49
Dives
Sightings
5
Days between first and last sighting
90

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 9, 202193 m6.0°C81 m
Jun 1, 2021100 m7.7°C41 m
Jun 8, 2021104 m8.9°C37 m
Jun 30, 202133 m11.2°C25 m
Aug 7, 2021119 m15.6°C31 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 9, 2021 — seafloor 93 m (measured), deepest dive 81 m (modelled)May 9Jun 1, 2021 — seafloor 100 m (measured), deepest dive 41 m (modelled)Jun 1Jun 8, 2021 — seafloor 104 m (measured), deepest dive 37 m (modelled)Jun 8Jun 30, 2021 — seafloor 33 m (measured), deepest dive 25 m (modelled)Jun 30Aug 7, 2021 — seafloor 119 m (measured), deepest dive 31 m (modelled)Aug 7

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

Dives

81 m
Deepest dive
3:24
Longest dive
49
Dives
19 m
Avg dive depth
5
Sightings
90
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010081 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (93 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 · May 9, 2021

measured
Seafloor depth
93 m
Sea-surface temperature
6.0°C
Distance from shore
2.0 km

Across the residency · 5 sightings

measured
Seafloor depth
33 m – 119 m
Sea-surface temperature
6.0°C – 15.6°C
Distance from shore
1.0 km – 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 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.