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

Check – Residency

45th sighting in Monterey Bay
Fluke of Check
Check Confirmed in the catalog @2
Apr 24 – May 17, 2021 · Monterey Bay

Monterey Bay · Apr – May 2021

58 m
Deepest dive
2:22
Longest dive
48
Dives
Sightings
5
Days between first and last sighting
23

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Apr 24, 202165 m11.9°C51 m
Apr 25, 202173 m11.6°C58 m
Apr 26, 202171 m11.5°C45 m
May 15, 202181 m12.0°C57 m
May 17, 202167 m12.1°C28 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
Apr 24, 2021 — seafloor 65 m (measured), deepest dive 51 m (modelled)Apr 24Apr 25, 2021 — seafloor 73 m (measured), deepest dive 58 m (modelled)Apr 25Apr 26, 2021 — seafloor 71 m (measured), deepest dive 45 m (modelled)Apr 26May 15, 2021 — seafloor 81 m (measured), deepest dive 57 m (modelled)May 15May 17, 2021 — seafloor 67 m (measured), deepest dive 28 m (modelled)May 17

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

Dives

58 m
Deepest dive
2:22
Longest dive
48
Dives
22 m
Avg dive depth
5
Sightings
23
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010058 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (73 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 · Apr 25, 2021

measured
Seafloor depth
73 m
Sea-surface temperature
11.6°C
Distance from shore
—

Across the residency · 5 sightings

measured
Seafloor depth
65 m – 81 m
Sea-surface temperature
11.5°C – 12.1°C
Distance from shore
2.0 km – 6.0 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.