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

Boomerang – Residency

9th sighting in Monterey Bay
Fluke of Boomerang
Boomerang Confirmed in the catalog @106591
Aug 16 – Sep 29, 2023 · Monterey Bay

Monterey Bay · Aug – Sep 2023

105 m
Deepest dive
4:01
Longest dive
72
Dives
Sightings
9
Days between first and last sighting
44

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 16, 202384 m—77 m
Aug 16, 202380 m—30 m
Sep 10, 2023116 m—65 m
Sep 13, 202384 m—66 m
Sep 13, 2023268 m—64 m
Sep 14, 2023254 m—105 m
Sep 18, 202367 m—31 m
Sep 18, 202365 m—40 m
Sep 29, 2023128 m—78 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 16, 2023 — seafloor 84 m (measured), deepest dive 77 m (modelled)Aug 16Aug 16, 2023 — seafloor 80 m (measured), deepest dive 30 m (modelled)Aug 16Sep 10, 2023 — seafloor 116 m (measured), deepest dive 65 m (modelled)Sep 10Sep 13, 2023 — seafloor 84 m (measured), deepest dive 66 m (modelled)Sep 13Sep 13, 2023 — seafloor 268 m (measured), deepest dive 64 m (modelled)Sep 13Sep 14, 2023 — seafloor 254 m (measured), deepest dive 105 m (modelled)Sep 14Sep 18, 2023 — seafloor 67 m (measured), deepest dive 31 m (modelled)Sep 18Sep 18, 2023 — seafloor 65 m (measured), deepest dive 40 m (modelled)Sep 18Sep 29, 2023 — seafloor 128 m (measured), deepest dive 78 m (modelled)Sep 29

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

Dives

105 m
Deepest dive
4:01
Longest dive
72
Dives
26 m
Avg dive depth
9
Sightings
44
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150105 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (254 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 14, 2023

measured
Seafloor depth
254 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 9 sightings

measured
Seafloor depth
65 m – 268 m
Sea-surface temperature
—
Distance from shore
2.0 km – 12.0 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 9 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.