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

Old Bull – Residency

12th sighting in Monterey Bay
Fluke of Old Bull
Old Bull Confirmed in the catalog @1487
Sep 10 – Dec 7, 2024 · Monterey Bay

Autumn in the Bay

The same waters keep calling me back, season after season.

60 m
Deepest dive
2:34
Longest dive
82
Dives
Sightings
5
Days between first and last sighting
88

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 10, 2024100 m15.5°C40 m
Nov 8, 202444 m12.6°C39 m
Nov 9, 2024103 m12.8°C60 m
Dec 7, 202444 m12.2°C34 m
Dec 7, 2024398 m12.5°C47 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 10, 2024 — seafloor 100 m (measured), deepest dive 40 m (modelled)Sep 10Nov 8, 2024 — seafloor 44 m (measured), deepest dive 39 m (modelled)Nov 8Nov 9, 2024 — seafloor 103 m (measured), deepest dive 60 m (modelled)Nov 9Dec 7, 2024 — seafloor 44 m (measured), deepest dive 34 m (modelled)Dec 7Dec 7, 2024 — seafloor 398 m (measured), deepest dive 47 m (modelled)Dec 7

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

Dives

60 m
Deepest dive
2:34
Longest dive
82
Dives
18 m
Avg dive depth
5
Sightings
88
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010060 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (103 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 · Nov 9, 2024

measured
Seafloor depth
103 m
Sea-surface temperature
12.8°C
Distance from shore
4.0 km

Across the residency · 5 sightings

measured
Seafloor depth
44 m – 398 m
Sea-surface temperature
12.2°C – 15.5°C
Distance from shore
1.0 km – 9.0 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 5 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.