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Monterey Bay

Mitten – Residency

63rd sighting in Monterey Bay
Fluke of Mitten
Mitten Confirmed in the catalog @120105
Aug 19 – Dec 27, 2025 · Monterey Bay

Monterey Bay · Aug – Dec 2025

364 m
Deepest dive
11:23
Longest dive
668
Dives
Sightings
56
Days between first and last sighting
130
Deepest dive on record
364 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 19, 202564 m14.7°C53 m
Aug 28, 202563 m17.1°C50 m
Aug 28, 2025567 m17.0°C35 m
Aug 31, 202574 m16.5°C62 m
Sep 2, 202579 m17.3°C33 m
Sep 3, 202587 m16.9°C41 m
Sep 16, 2025254 m17.1°C50 m
Sep 16, 202563 m17.1°C34 m
Sep 17, 202574 m18.1°C42 m
Sep 18, 202572 m18.0°C56 m
Sep 20, 2025129 m17.6°C73 m
Sep 21, 2025254 m17.5°C50 m
Sep 22, 202557 m17.4°C51 m
Sep 22, 2025124 m17.4°C95 m
Sep 22, 202535 m17.0°C32 m
Sep 25, 2025101 m17.4°C40 m
Sep 29, 2025112 m17.2°C86 m
Sep 30, 202561 m16.9°C51 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
Aug 19, 2025 — seafloor 64 m (measured), deepest dive 53 m (modelled)Aug 19Aug 28, 2025 — seafloor 63 m (measured), deepest dive 50 m (modelled)Aug 28, 2025 — seafloor 567 m (measured), deepest dive 35 m (modelled)Aug 31, 2025 — seafloor 74 m (measured), deepest dive 62 m (modelled)Sep 2, 2025 — seafloor 79 m (measured), deepest dive 33 m (modelled)Sep 3, 2025 — seafloor 87 m (measured), deepest dive 41 m (modelled)Sep 16, 2025 — seafloor 254 m (measured), deepest dive 50 m (modelled)Sep 16, 2025 — seafloor 63 m (measured), deepest dive 34 m (modelled)Sep 17, 2025 — seafloor 74 m (measured), deepest dive 42 m (modelled)Sep 18, 2025 — seafloor 72 m (measured), deepest dive 56 m (modelled)Sep 20, 2025 — seafloor 129 m (measured), deepest dive 73 m (modelled)Sep 20Sep 21, 2025 — seafloor 254 m (measured), deepest dive 50 m (modelled)Sep 22, 2025 — seafloor 57 m (measured), deepest dive 51 m (modelled)Sep 22, 2025 — seafloor 124 m (measured), deepest dive 95 m (modelled)Sep 22, 2025 — seafloor 35 m (measured), deepest dive 32 m (modelled)Sep 25, 2025 — seafloor 101 m (measured), deepest dive 40 m (modelled)Sep 29, 2025 — seafloor 112 m (measured), deepest dive 86 m (modelled)Sep 30, 2025 — seafloor 61 m (measured), deepest dive 51 m (modelled)Oct 1, 2025 — seafloor 152 m (measured), deepest dive 48 m (modelled)Oct 2, 2025 — seafloor 89 m (measured), deepest dive 74 m (modelled)Oct 5, 2025 — seafloor 78 m (measured), deepest dive 70 m (modelled)Oct 5Oct 5, 2025 — seafloor 83 m (measured), deepest dive 31 m (modelled)Oct 5, 2025 — seafloor 254 m (measured), deepest dive 50 m (modelled)Oct 6, 2025 — seafloor 68 m (measured), deepest dive 40 m (modelled)Oct 7, 2025 — seafloor 81 m (measured), deepest dive 36 m (modelled)Oct 7, 2025 — seafloor 74 m (measured), deepest dive 53 m (modelled)Oct 9, 2025 — seafloor 111 m (measured), deepest dive 61 m (modelled)Oct 10, 2025 — seafloor 73 m (measured), deepest dive 45 m (modelled)Oct 12, 2025 — seafloor 228 m (measured), deepest dive 32 m (modelled)Oct 13, 2025 — seafloor 61 m (measured), deepest dive 38 m (modelled)Oct 15, 2025 — seafloor 139 m (measured), deepest dive 76 m (modelled)Oct 15Oct 16, 2025 — seafloor 106 m (measured), deepest dive 66 m (modelled)Oct 17, 2025 — seafloor 73 m (measured), deepest dive 65 m (modelled)Oct 17, 2025 — seafloor 254 m (measured), deepest dive 155 m (modelled)Oct 18, 2025 — seafloor 254 m (measured), deepest dive 96 m (modelled)Oct 20, 2025 — seafloor 73 m (measured), deepest dive 35 m (modelled)Oct 20, 2025 — seafloor 33 m (measured), deepest dive 29 m (modelled)Oct 21, 2025 — seafloor 71 m (measured), deepest dive 63 m (modelled)Oct 23, 2025 — seafloor 73 m (measured), deepest dive 57 m (modelled)Oct 27, 2025 — seafloor 254 m (measured), deepest dive 92 m (modelled)Oct 29, 2025 — seafloor 254 m (measured), deepest dive 121 m (modelled)Oct 29Oct 29, 2025 — seafloor 72 m (measured), deepest dive 44 m (modelled)Nov 15, 2025 — seafloor 169 m (measured), deepest dive 79 m (modelled)Nov 18, 2025 — seafloor 86 m (measured), deepest dive 56 m (modelled)Nov 19, 2025 — seafloor 128 m (measured), deepest dive 87 m (modelled)Nov 22, 2025 — seafloor 444 m (measured), deepest dive 285 m (modelled)Nov 22, 2025 — seafloor 57 m (measured), deepest dive 42 m (modelled)Nov 24, 2025 — seafloor 72 m (measured), deepest dive 53 m (modelled)Nov 27, 2025 — seafloor 162 m (measured), deepest dive 84 m (modelled)Nov 28, 2025 — seafloor 146 m (measured), deepest dive 126 m (modelled)Dec 6, 2025 — seafloor 95 m (measured), deepest dive 39 m (modelled)Dec 6Dec 7, 2025 — seafloor 91 m (measured), deepest dive 23 m (modelled)Dec 15, 2025 — seafloor 254 m (measured), deepest dive 36 m (modelled)Dec 19, 2025 — seafloor 75 m (measured), deepest dive 35 m (modelled)Dec 27, 2025 — seafloor 446 m (measured), deepest dive 364 m (modelled)Dec 27, 2025 — seafloor 501 m (measured), deepest dive 219 m (modelled)

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

Dives

364 m
Deepest dive
11:23
Longest dive
668
Dives
25 m
Avg dive depth
56
Sightings
130
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0200400364 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (446 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 · Dec 27, 2025

measured
Seafloor depth
446 m
Sea-surface temperature
14.1°C
Distance from shore
9.0 km

Across the residency · 56 sightings

measured
Seafloor depth
33 m – 567 m
Sea-surface temperature
14.0°C – 18.1°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 56 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.