Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Chatham Strait

Rosie Finch – Residency

10th sighting in Chatham Strait
Fluke of Rosie Finch
Rosie Finch Confirmed in the catalog @6448
Aug 2 – Sep 8, 2021 · Chatham Strait

Chatham Strait · Aug – Sep 2021

156 m
Deepest dive
4:38
Longest dive
119
Dives
Sightings
6
Days between first and last sighting
37
Deepest dive on record
156 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 2, 202180 m13.3°C58 m
Aug 5, 2021138 m14.1°C113 m
Aug 5, 202188 m13.6°C59 m
Aug 30, 202155 m10.8°C47 m
Aug 31, 2021127 m10.9°C30 m
Sep 8, 2021622 m13.1°C156 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 2, 2021 — seafloor 80 m (measured), deepest dive 58 m (modelled)Aug 2Aug 5, 2021 — seafloor 138 m (measured), deepest dive 113 m (modelled)Aug 5Aug 5, 2021 — seafloor 88 m (measured), deepest dive 59 m (modelled)Aug 5Aug 30, 2021 — seafloor 55 m (measured), deepest dive 47 m (modelled)Aug 30Aug 31, 2021 — seafloor 127 m (measured), deepest dive 30 m (modelled)Aug 31Sep 8, 2021 — seafloor 622 m (measured), deepest dive 156 m (modelled)Sep 8

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

Dives

156 m
Deepest dive
4:38
Longest dive
119
Dives
23 m
Avg dive depth
6
Sightings
37
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200156 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (622 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 · Sep 8, 2021

measured
Seafloor depth
622 m
Sea-surface temperature
13.1°C
Distance from shore
3.0 km

Across the residency · 6 sightings

measured
Seafloor depth
55 m – 622 m
Sea-surface temperature
10.8°C – 14.1°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 6 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.