Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Gulf of the Farallones

Star Trails – Residency

3rd sighting in Gulf of the Farallones
Fluke of Star Trails
Star Trails Confirmed in the catalog @7338
Aug 21 – Oct 12, 2018 · Gulf of the Farallones

Gulf of the Farallones · Aug – Oct 2018

44 m
Deepest dive
1:49
Longest dive
27
Dives
Sightings
3
Days between first and last sighting
52

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Aug 21, 201854 m—44 m
Sep 15, 201833 m—22 m
Oct 12, 201811 m—10 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 21, 2018 — seafloor 54 m (measured), deepest dive 44 m (modelled)Aug 21Sep 15, 2018 — seafloor 33 m (measured), deepest dive 22 m (modelled)Sep 15Oct 12, 2018 — seafloor 11 m (measured), deepest dive 10 m (modelled)Oct 12

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

Dives

44 m
Deepest dive
1:49
Longest dive
27
Dives
14 m
Avg dive depth
3
Sightings
52
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255044 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (54 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 21, 2018

measured
Seafloor depth
54 m
Sea-surface temperature
—
Distance from shore
23.0 km

Across the residency · 3 sightings

measured
Seafloor depth
11 m – 54 m
Sea-surface temperature
—
Distance from shore
5.0 km – 23.0 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 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.