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

Checkmarks – Residency

46th sighting in Monterey Bay
Fluke of Checkmarks
Checkmarks Confirmed in the catalog @700
May 18 – Jun 30, 2019 · Monterey Bay

Monterey Bay · May – Jun 2019

173 m
Deepest dive
4:01
Longest dive
77
Dives
Sightings
11
Days between first and last sighting
43

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 18, 2019319 m14.5°C97 m
May 18, 2019371 m14.5°C88 m
May 18, 2019707 m14.5°C35 m
May 18, 2019584 m14.6°C173 m
Jun 3, 2019110 m13.7°C64 m
Jun 30, 2019567 m14.6°C49 m
Jun 30, 201971 m15.1°C37 m
Jun 30, 201925 m—23 m
Jun 30, 2019632 m14.9°C24 m
Jun 30, 201999 m15.2°C38 m
Jun 30, 201995 m15.2°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
May 18, 2019 — seafloor 319 m (measured), deepest dive 97 m (modelled)May 18May 18, 2019 — seafloor 371 m (measured), deepest dive 88 m (modelled)May 18May 18, 2019 — seafloor 707 m (measured), deepest dive 35 m (modelled)May 18May 18, 2019 — seafloor 584 m (measured), deepest dive 173 m (modelled)May 18Jun 3, 2019 — seafloor 110 m (measured), deepest dive 64 m (modelled)Jun 3Jun 30, 2019 — seafloor 567 m (measured), deepest dive 49 m (modelled)Jun 30Jun 30, 2019 — seafloor 71 m (measured), deepest dive 37 m (modelled)Jun 30Jun 30, 2019 — seafloor 25 m (measured), deepest dive 23 m (modelled)Jun 30Jun 30, 2019 — seafloor 632 m (measured), deepest dive 24 m (modelled)Jun 30Jun 30, 2019 — seafloor 99 m (measured), deepest dive 38 m (modelled)Jun 30Jun 30, 2019 — seafloor 95 m (measured), deepest dive 82 m (modelled)Jun 30

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

Dives

173 m
Deepest dive
4:01
Longest dive
77
Dives
26 m
Avg dive depth
11
Sightings
43
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200173 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (584 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 · May 18, 2019

measured
Seafloor depth
584 m
Sea-surface temperature
14.6°C
Distance from shore
19.0 km

Across the residency · 11 sightings

measured
Seafloor depth
25 m – 707 m
Sea-surface temperature
13.7°C – 15.2°C
Distance from shore
1.0 km – 19.0 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 11 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.