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

Ratchet – Residency

130th sighting in Monterey Bay
Fluke of Ratchet
Ratchet Confirmed in the catalog @7272
Sep 11 – 26, 2022 · Monterey Bay

Monterey Bay · Sep 2022

82 m
Deepest dive
3:45
Longest dive
90
Dives
Sightings
7
Days between first and last sighting
15

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 11, 202270 m15.9°C35 m
Sep 16, 2022154 m15.3°C80 m
Sep 22, 202273 m16.2°C35 m
Sep 23, 202280 m16.6°C40 m
Sep 24, 2022277 m16.5°C57 m
Sep 25, 202276 m16.1°C32 m
Sep 26, 202299 m16.2°C82 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 11, 2022 — seafloor 70 m (measured), deepest dive 35 m (modelled)Sep 11Sep 16, 2022 — seafloor 154 m (measured), deepest dive 80 m (modelled)Sep 16Sep 22, 2022 — seafloor 73 m (measured), deepest dive 35 m (modelled)Sep 22Sep 23, 2022 — seafloor 80 m (measured), deepest dive 40 m (modelled)Sep 23Sep 24, 2022 — seafloor 277 m (measured), deepest dive 57 m (modelled)Sep 24Sep 25, 2022 — seafloor 76 m (measured), deepest dive 32 m (modelled)Sep 25Sep 26, 2022 — seafloor 99 m (measured), deepest dive 82 m (modelled)Sep 26

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

Dives

82 m
Deepest dive
3:45
Longest dive
90
Dives
21 m
Avg dive depth
7
Sightings
15
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010082 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (99 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 26, 2022

measured
Seafloor depth
99 m
Sea-surface temperature
16.2°C
Distance from shore
7.0 km

Across the residency · 7 sightings

measured
Seafloor depth
70 m – 277 m
Sea-surface temperature
15.3°C – 16.6°C
Distance from shore
3.0 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 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.