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

Ratchet – Residency

166th sighting in Monterey Bay
Fluke of Ratchet
Ratchet Confirmed in the catalog @7272
Jun 20 – Jul 23, 2026 · Monterey Bay

Cold Water, Good Company

That green shelf keeps feeding me and I keep showing up for it.

261 m
Deepest dive
8:38
Longest dive
71
Dives
Sightings
4
Days between first and last sighting
33

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jun 20, 2026143 m16.2°C80 m
Jun 21, 2026567 m16.8°C261 m
Jul 11, 202686 m16.0°C57 m
Jul 23, 2026144 m17.0°C68 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
Jun 20, 2026 — seafloor 143 m (measured), deepest dive 80 m (modelled)Jun 20Jun 21, 2026 — seafloor 567 m (measured), deepest dive 261 m (modelled)Jun 21Jul 11, 2026 — seafloor 86 m (measured), deepest dive 57 m (modelled)Jul 11Jul 23, 2026 — seafloor 144 m (measured), deepest dive 68 m (modelled)Jul 23

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

Dives

261 m
Deepest dive
8:38
Longest dive
71
Dives
26 m
Avg dive depth
4
Sightings
33
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0150300261 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.

Unlock with Risa Deep

Place

Where this happened · Jun 21, 2026

measured
Seafloor depth
567 m
Sea-surface temperature
16.8°C
Distance from shore
16.0 km

Across the residency · 4 sightings

measured
Seafloor depth
86 m – 567 m
Sea-surface temperature
16.0°C – 17.0°C
Distance from shore
3.0 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 4 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).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.