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

Underscore Period – Residency

10th sighting in Monterey Bay
Fluke of Underscore Period
Underscore Period Confirmed in the catalog @24771
Sep 25 – 30, 2022 · Monterey Bay

Monterey Bay · Sep 2022

203 m
Deepest dive
6:58
Longest dive
31
Dives
Sightings
3
Days between first and last sighting
5
Deepest dive on record
203 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 25, 2022377 m—203 m
Sep 26, 2022402 m—139 m
Sep 30, 202285 m—36 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
Sep 25, 2022 — seafloor 377 m (measured), deepest dive 203 m (modelled)Sep 25Sep 26, 2022 — seafloor 402 m (measured), deepest dive 139 m (modelled)Sep 26Sep 30, 2022 — seafloor 85 m (measured), deepest dive 36 m (modelled)Sep 30

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

Dives

203 m
Deepest dive
6:58
Longest dive
31
Dives
38 m
Avg dive depth
3
Sightings
5
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0125250203 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (377 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 25, 2022

measured
Seafloor depth
377 m
Sea-surface temperature
—
Distance from shore
11.0 km

Across the residency · 3 sightings

measured
Seafloor depth
85 m – 402 m
Sea-surface temperature
—
Distance from shore
10.0 km – 11.0 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.