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

Ziggurat – Residency

51st sighting in Monterey Bay
Fluke of Ziggurat
Ziggurat Confirmed in the catalog @63
May 6 – Oct 5, 2023 · Monterey Bay

Five months in the bay

The same waters kept calling me back through summer's long days.

176 m
Deepest dive
5:38
Longest dive
177
Dives
Sightings
12
Days between first and last sighting
152

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 6, 202345 m12.1°C35 m
May 8, 202353 m12.6°C45 m
May 8, 202390 m12.6°C67 m
May 10, 2023567 m12.6°C175 m
Aug 5, 202397 m14.2°C38 m
Aug 14, 2023530 m15.7°C73 m
Sep 16, 202382 m16.5°C65 m
Sep 16, 2023567 m16.4°C176 m
Sep 18, 202367 m16.5°C18 m
Sep 28, 202324 m17.2°C17 m
Sep 29, 2023437 m16.8°C134 m
Oct 5, 202379 m17.5°C69 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
May 6, 2023 — seafloor 45 m (measured), deepest dive 35 m (modelled)May 6May 8, 2023 — seafloor 53 m (measured), deepest dive 45 m (modelled)May 8May 8, 2023 — seafloor 90 m (measured), deepest dive 67 m (modelled)May 8May 10, 2023 — seafloor 567 m (measured), deepest dive 175 m (modelled)May 10Aug 5, 2023 — seafloor 97 m (measured), deepest dive 38 m (modelled)Aug 5Aug 14, 2023 — seafloor 530 m (measured), deepest dive 73 m (modelled)Aug 14Sep 16, 2023 — seafloor 82 m (measured), deepest dive 65 m (modelled)Sep 16Sep 16, 2023 — seafloor 567 m (measured), deepest dive 176 m (modelled)Sep 16Sep 18, 2023 — seafloor 67 m (measured), deepest dive 18 m (modelled)Sep 18Sep 28, 2023 — seafloor 24 m (measured), deepest dive 17 m (modelled)Sep 28Sep 29, 2023 — seafloor 437 m (measured), deepest dive 134 m (modelled)Sep 29Oct 5, 2023 — seafloor 79 m (measured), deepest dive 69 m (modelled)Oct 5

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

Dives

176 m
Deepest dive
5:38
Longest dive
177
Dives
23 m
Avg dive depth
12
Sightings
152
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200176 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (567 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 16, 2023

measured
Seafloor depth
567 m
Sea-surface temperature
16.4°C
Distance from shore
16.0 km

Across the residency · 12 sightings

measured
Seafloor depth
24 m – 567 m
Sea-surface temperature
12.1°C – 17.5°C
Distance from shore
2.0 km – 16.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

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

Source records

This activity is assembled from 12 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.