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Monterey Bay

HW-MN0503993 – Residency

9th sighting in Monterey Bay
Fluke of HW-MN0503993
HW-MN0503993 Confirmed in the catalog @149271
Nov 22, 2025 – Mar 10, 2026 · Monterey Bay

Monterey Bay · Nov 2025 – Mar 2026

256 m
Deepest dive
9:21
Longest dive
98
Dives
Sightings
11
Days between first and last sighting
108
Deepest dive on record
256 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Nov 22, 2025444 m—255 m
Nov 29, 2025400 m—256 m
Nov 30, 2025306 m—64 m
Dec 12, 202568 m—43 m
Dec 13, 202561 m—43 m
Dec 20, 2025567 m—48 m
Dec 20, 202569 m—54 m
Dec 24, 2025567 m—92 m
Dec 30, 202582 m—58 m
Mar 4, 202693 m14.5°C74 m
Mar 10, 2026128 m14.7°C64 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
Nov 22, 2025 — seafloor 444 m (measured), deepest dive 255 m (modelled)Nov 22Nov 29, 2025 — seafloor 400 m (measured), deepest dive 256 m (modelled)Nov 29Nov 30, 2025 — seafloor 306 m (measured), deepest dive 64 m (modelled)Nov 30Dec 12, 2025 — seafloor 68 m (measured), deepest dive 43 m (modelled)Dec 12Dec 13, 2025 — seafloor 61 m (measured), deepest dive 43 m (modelled)Dec 13Dec 20, 2025 — seafloor 567 m (measured), deepest dive 48 m (modelled)Dec 20Dec 20, 2025 — seafloor 69 m (measured), deepest dive 54 m (modelled)Dec 20Dec 24, 2025 — seafloor 567 m (measured), deepest dive 92 m (modelled)Dec 24Dec 30, 2025 — seafloor 82 m (measured), deepest dive 58 m (modelled)Dec 30Mar 4, 2026 — seafloor 93 m (measured), deepest dive 74 m (modelled)Mar 4Mar 10, 2026 — seafloor 128 m (measured), deepest dive 64 m (modelled)Mar 10

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

Dives

256 m
Deepest dive
9:21
Longest dive
98
Dives
30 m
Avg dive depth
11
Sightings
108
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0150300256 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (400 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 29, 2025

measured
Seafloor depth
400 m
Sea-surface temperature
—
Distance from shore
9.0 km

Across the residency · 11 sightings

measured
Seafloor depth
61 m – 567 m
Sea-surface temperature
14.5°C – 14.7°C
Distance from shore
2.0 km – 16.0 km

Sources: GEBCO seafloor grid · 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.