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

Chromosome – Residency

42nd sighting in Monterey Bay
Fluke of Chromosome
Chromosome Confirmed in the catalog @701
Jul 2 – Sep 28, 2026 · Monterey Bay

Monterey Bay, Late Summer

Waters I know like an old friend, still showing off for the cameras.

317 m
Deepest dive
10:30
Longest dive
46
Dives
Sightings
3
Days between first and last sighting
88
Deepest dive on record
317 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 2, 2026729 m15.6°C317 m
Sep 27, 2026215 m16.6°C158 m
Sep 28, 2026138 m16.7°C118 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
Jul 2, 2026 — seafloor 729 m (measured), deepest dive 317 m (modelled)Jul 2Sep 27, 2026 — seafloor 215 m (measured), deepest dive 158 m (modelled)Sep 27Sep 28, 2026 — seafloor 138 m (measured), deepest dive 118 m (modelled)Sep 28

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

Dives

317 m
Deepest dive
10:30
Longest dive
46
Dives
42 m
Avg dive depth
3
Sightings
88
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0175350317 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (729 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 · Jul 2, 2026

measured
Seafloor depth
729 m
Sea-surface temperature
15.6°C
Distance from shore
13.0 km

Across the residency · 3 sightings

measured
Seafloor depth
138 m – 729 m
Sea-surface temperature
15.6°C – 16.7°C
Distance from shore
2.0 km – 13.0 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 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.