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

Bullethole – Residency

5th sighting in Lynn Canal & Stephens Passage
Fluke of Bullethole
Bullethole Confirmed in the catalog @26458
Jul 14 – Aug 1, 2012 · Lynn Canal & Stephens Passage

Lynn Canal & Stephens Passage · Jul – Aug 2012

110 m
Deepest dive
4:21
Longest dive
103
Dives
Sightings
5
Days between first and last sighting
18

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 14, 2012125 m11.5°C110 m
Jul 16, 2012101 m12.2°C35 m
Jul 21, 201249 m12.4°C30 m
Jul 23, 2012176 m12.4°C109 m
Aug 1, 201249 m11.0°C44 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 14, 2012 — seafloor 125 m (measured), deepest dive 110 m (modelled)Jul 14Jul 16, 2012 — seafloor 101 m (measured), deepest dive 35 m (modelled)Jul 16Jul 21, 2012 — seafloor 49 m (measured), deepest dive 30 m (modelled)Jul 21Jul 23, 2012 — seafloor 176 m (measured), deepest dive 109 m (modelled)Jul 23Aug 1, 2012 — seafloor 49 m (measured), deepest dive 44 m (modelled)Aug 1

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

Dives

110 m
Deepest dive
4:21
Longest dive
103
Dives
21 m
Avg dive depth
5
Sightings
18
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150110 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (125 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 14, 2012

measured
Seafloor depth
125 m
Sea-surface temperature
11.5°C
Distance from shore
2.0 km

Across the residency · 5 sightings

measured
Seafloor depth
49 m – 176 m
Sea-surface temperature
11.0°C – 12.4°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.