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Monterey Bay

Checkmarks – Residency

90th sighting in Monterey Bay
Fluke of Checkmarks
Checkmarks Confirmed in the catalog @700
Sep 30, 2019 – Nov 20, 2020 · Monterey Bay

Monterey Bay · Sep 2019 – Nov 2020

426 m
Deepest dive
10:49
Longest dive
571
Dives
Sightings
44
Days between first and last sighting
417

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 30, 201992 m15.5°C71 m
Oct 3, 201968 m15.5°C56 m
Oct 4, 201983 m15.2°C64 m
Oct 5, 2019172 m14.9°C61 m
Oct 9, 201933 m14.7°C21 m
Oct 10, 2019440 m15.2°C71 m
Oct 11, 2019238 m14.7°C33 m
Oct 21, 2019451 m13.8°C309 m
Nov 1, 201980 m13.3°C64 m
Nov 9, 201955 m14.2°C44 m
Nov 11, 2019297 m14.2°C99 m
Nov 12, 2019244 m14.3°C107 m
Nov 14, 201951 m14.0°C41 m
Nov 16, 201978 m14.0°C59 m
Dec 8, 2019386 m13.8°C59 m
Dec 15, 2019127 m14.0°C45 m
Feb 22, 2020192 m12.4°C55 m
Feb 28, 20201,076 m12.9°C136 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 30, 2019 — seafloor 92 m (measured), deepest dive 71 m (modelled)Sep 30Oct 3, 2019 — seafloor 68 m (measured), deepest dive 56 m (modelled)Oct 4, 2019 — seafloor 83 m (measured), deepest dive 64 m (modelled)Oct 5, 2019 — seafloor 172 m (measured), deepest dive 61 m (modelled)Oct 9, 2019 — seafloor 33 m (measured), deepest dive 21 m (modelled)Oct 10, 2019 — seafloor 440 m (measured), deepest dive 71 m (modelled)Oct 11, 2019 — seafloor 238 m (measured), deepest dive 33 m (modelled)Oct 21, 2019 — seafloor 451 m (measured), deepest dive 309 m (modelled)Nov 1, 2019 — seafloor 80 m (measured), deepest dive 64 m (modelled)Nov 1Nov 9, 2019 — seafloor 55 m (measured), deepest dive 44 m (modelled)Nov 11, 2019 — seafloor 297 m (measured), deepest dive 99 m (modelled)Nov 12, 2019 — seafloor 244 m (measured), deepest dive 107 m (modelled)Nov 14, 2019 — seafloor 51 m (measured), deepest dive 41 m (modelled)Nov 16, 2019 — seafloor 78 m (measured), deepest dive 59 m (modelled)Dec 8, 2019 — seafloor 386 m (measured), deepest dive 59 m (modelled)Dec 15, 2019 — seafloor 127 m (measured), deepest dive 45 m (modelled)Feb 22, 2020 — seafloor 192 m (measured), deepest dive 55 m (modelled)Feb 22Feb 28, 2020 — seafloor 1,076 m (measured), deepest dive 136 m (modelled)Mar 5, 2020 — seafloor 181 m (measured), deepest dive 92 m (modelled)Mar 7, 2020 — seafloor 93 m (measured), deepest dive 74 m (modelled)Apr 27, 2020 — seafloor 128 m (measured), deepest dive 105 m (modelled)Jun 15, 2020 — seafloor 72 m (measured), deepest dive 60 m (modelled)Jun 19, 2020 — seafloor 1,196 m (measured), deepest dive 38 m (modelled)Sep 1, 2020 — seafloor 125 m (measured), deepest dive 95 m (modelled)Sep 5, 2020 — seafloor 567 m (measured), deepest dive 27 m (modelled)Sep 5Sep 5, 2020 — seafloor 65 m (measured), deepest dive 57 m (modelled)Sep 8, 2020 — seafloor 319 m (measured), deepest dive 127 m (modelled)Sep 13, 2020 — seafloor 421 m (measured), deepest dive 203 m (modelled)Sep 17, 2020 — seafloor 330 m (measured), deepest dive 23 m (modelled)Sep 18, 2020 — seafloor 33 m (measured), deepest dive 30 m (modelled)Sep 19, 2020 — seafloor 58 m (measured), deepest dive 49 m (modelled)Sep 21, 2020 — seafloor 87 m (measured), deepest dive 47 m (modelled)Sep 23, 2020 — seafloor 98 m (measured), deepest dive 68 m (modelled)Sep 23Sep 27, 2020 — seafloor 88 m (measured), deepest dive 22 m (modelled)Oct 1, 2020 — seafloor 243 m (measured), deepest dive 49 m (modelled)Oct 3, 2020 — seafloor 101 m (measured), deepest dive 57 m (modelled)Oct 5, 2020 — seafloor 161 m (measured), deepest dive 88 m (modelled)Oct 20, 2020 — seafloor 567 m (measured), deepest dive 36 m (modelled)Oct 21, 2020 — seafloor 276 m (measured), deepest dive 73 m (modelled)Nov 9, 2020 — seafloor 527 m (measured), deepest dive 426 m (modelled)Nov 15, 2020 — seafloor 790 m (measured), deepest dive 201 m (modelled)Nov 15Nov 16, 2020 — seafloor 844 m (measured), deepest dive 45 m (modelled)Nov 19, 2020 — seafloor 212 m (measured), deepest dive 180 m (modelled)Nov 20, 2020 — seafloor 306 m (measured), deepest dive 79 m (modelled)

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

Dives

426 m
Deepest dive
10:49
Longest dive
571
Dives
27 m
Avg dive depth
44
Sightings
417
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0225450426 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (527 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 · Nov 9, 2020

measured
Seafloor depth
527 m
Sea-surface temperature
13.3°C
Distance from shore
10.0 km

Across the residency · 44 sightings

measured
Seafloor depth
33 m – 1,196 m
Sea-surface temperature
12.4°C – 17.6°C
Distance from shore
2.0 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 44 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.