Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Salish Sea

Sherwina – Residency

16th sighting in Salish Sea
Fluke of Sherwina
Sherwina Confirmed in the catalog @11390
Aug 12 – Oct 5, 2024 · Salish Sea

Salish Sea · Aug – Oct 2024

104 m
Deepest dive
4:07
Longest dive
36
Dives
Sightings
5
Days between first and last sighting
54

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 12, 2024141 m12.4°C51 m
Aug 14, 2024169 m12.2°C104 m
Aug 14, 2024106 m12.3°C93 m
Sep 10, 202493 m14.7°C77 m
Oct 5, 202445 m10.8°C27 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 12, 2024 — seafloor 141 m (measured), deepest dive 51 m (modelled)Aug 12Aug 14, 2024 — seafloor 169 m (measured), deepest dive 104 m (modelled)Aug 14Aug 14, 2024 — seafloor 106 m (measured), deepest dive 93 m (modelled)Aug 14Sep 10, 2024 — seafloor 93 m (measured), deepest dive 77 m (modelled)Sep 10Oct 5, 2024 — seafloor 45 m (measured), deepest dive 27 m (modelled)Oct 5

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

Dives

104 m
Deepest dive
4:07
Longest dive
36
Dives
27 m
Avg dive depth
5
Sightings
54
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150104 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (169 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 14, 2024

measured
Seafloor depth
169 m
Sea-surface temperature
12.2°C
Distance from shore
5.0 km

Across the residency · 5 sightings

measured
Seafloor depth
45 m – 169 m
Sea-surface temperature
10.8°C – 14.7°C
Distance from shore
1.0 km – 8.0 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.