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

The Duchess of Anchovy – Residency

18th sighting in Monterey Bay
Fluke of The Duchess of Anchovy
The Duchess of Anchovy Confirmed in the catalog @79276
Mar 18 – Oct 18, 2023 · Monterey Bay

Monterey Bay · Mar – Oct 2023

108 m
Deepest dive
2:57
Longest dive
82
Dives
Sightings
7
Days between first and last sighting
214

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Mar 18, 2023359 m—43 m
Jun 7, 202382 m—59 m
Jun 7, 202382 m—67 m
Aug 18, 202352 m—29 m
Oct 6, 2023104 m—63 m
Oct 9, 2023118 m—79 m
Oct 18, 2023390 m—108 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
Mar 18, 2023 — seafloor 359 m (measured), deepest dive 43 m (modelled)Mar 18Jun 7, 2023 — seafloor 82 m (measured), deepest dive 59 m (modelled)Jun 7Jun 7, 2023 — seafloor 82 m (measured), deepest dive 67 m (modelled)Jun 7Aug 18, 2023 — seafloor 52 m (measured), deepest dive 29 m (modelled)Aug 18Oct 6, 2023 — seafloor 104 m (measured), deepest dive 63 m (modelled)Oct 6Oct 9, 2023 — seafloor 118 m (measured), deepest dive 79 m (modelled)Oct 9Oct 18, 2023 — seafloor 390 m (measured), deepest dive 108 m (modelled)Oct 18

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

Dives

108 m
Deepest dive
2:57
Longest dive
82
Dives
25 m
Avg dive depth
7
Sightings
214
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150108 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (390 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 · Oct 18, 2023

measured
Seafloor depth
390 m
Sea-surface temperature
—
Distance from shore
8.0 km

Across the residency · 7 sightings

measured
Seafloor depth
52 m – 390 m
Sea-surface temperature
—
Distance from shore
7.0 km – 16.0 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.