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

Milky Way – Residency

14th sighting in Chatham Strait
Fluke of Milky Way
Milky Way Confirmed in the catalog @5897
Jul 25 – Aug 31, 2021 · Chatham Strait

Chatham Strait · Jul – Aug 2021

80 m
Deepest dive
3:00
Longest dive
122
Dives
Sightings
7
Days between first and last sighting
38

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 25, 202169 m—54 m
Jul 27, 202166 m—36 m
Aug 2, 202179 m—72 m
Aug 16, 202120 m—16 m
Aug 27, 2021125 m—80 m
Aug 30, 202155 m—50 m
Aug 31, 2021127 m—62 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 25, 2021 — seafloor 69 m (measured), deepest dive 54 m (modelled)Jul 25Jul 27, 2021 — seafloor 66 m (measured), deepest dive 36 m (modelled)Jul 27Aug 2, 2021 — seafloor 79 m (measured), deepest dive 72 m (modelled)Aug 2Aug 16, 2021 — seafloor 20 m (measured), deepest dive 16 m (modelled)Aug 16Aug 27, 2021 — seafloor 125 m (measured), deepest dive 80 m (modelled)Aug 27Aug 30, 2021 — seafloor 55 m (measured), deepest dive 50 m (modelled)Aug 30Aug 31, 2021 — seafloor 127 m (measured), deepest dive 62 m (modelled)Aug 31

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

Dives

80 m
Deepest dive
3:00
Longest dive
122
Dives
21 m
Avg dive depth
7
Sightings
38
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010080 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 · Aug 27, 2021

measured
Seafloor depth
125 m
Sea-surface temperature
—
Distance from shore
1.0 km

Across the residency · 7 sightings

measured
Seafloor depth
20 m – 127 m
Sea-surface temperature
—
Distance from shore
1.0 km – 2.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

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

Source records

This activity is assembled from 7 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.