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

Chromosome – Residency

4th sighting in Lynn Canal & Stephens Passage
Fluke of Chromosome
Chromosome Confirmed in the catalog @15642
Jun 8 – Jul 26, 2021 · Lynn Canal & Stephens Passage

Lynn Canal & Stephens Passage · Jun – Jul 2021

262 m
Deepest dive
7:17
Longest dive
31
Dives
Sightings
3
Days between first and last sighting
48
Deepest dive on record
262 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 8, 202125 m8.9°C10 m
Jun 9, 202157 m8.7°C43 m
Jul 26, 2021371 m13.6°C262 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
Jun 8, 2021 — seafloor 25 m (measured), deepest dive 10 m (modelled)Jun 8Jun 9, 2021 — seafloor 57 m (measured), deepest dive 43 m (modelled)Jun 9Jul 26, 2021 — seafloor 371 m (measured), deepest dive 262 m (modelled)Jul 26

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

Dives

262 m
Deepest dive
7:17
Longest dive
31
Dives
26 m
Avg dive depth
3
Sightings
48
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0150300262 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (371 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 26, 2021

measured
Seafloor depth
371 m
Sea-surface temperature
13.6°C
Distance from shore
3.0 km

Across the residency · 3 sightings

measured
Seafloor depth
25 m – 371 m
Sea-surface temperature
8.7°C – 13.6°C
Distance from shore
1.0 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 3 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.