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Monterey Bay

Monterey - 2020-2021 calf of CRC-15591 – Residency

146th sighting in Monterey Bay
Fluke of Monterey - 2020-2021 calf of CRC-15591
Monterey - 2020-2021 calf of CRC-15591 Confirmed in the catalog @65201
Apr 29 – Oct 11, 2025 · Monterey Bay

Monterey Bay · Apr – Oct 2025

216 m
Deepest dive
7:00
Longest dive
249
Dives
Sightings
23
Days between first and last sighting
165

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Apr 29, 202560 m12.8°C54 m
May 1, 202579 m13.1°C68 m
May 31, 202558 m13.9°C53 m
Jun 1, 202551 m14.2°C29 m
Jun 5, 202555 m14.4°C40 m
Jun 6, 202551 m14.9°C25 m
Jun 8, 202576 m15.3°C54 m
Jun 9, 202565 m14.8°C56 m
Jul 6, 202560 m13.8°C55 m
Jul 6, 202570 m13.8°C58 m
Jul 6, 202570 m13.8°C56 m
Jul 7, 202560 m13.8°C55 m
Jul 8, 202572 m13.6°C48 m
Jul 19, 202571 m15.6°C58 m
Jul 21, 202597 m15.7°C65 m
Jul 28, 202572 m16.5°C51 m
Aug 18, 202577 m15.5°C55 m
Aug 25, 202576 m13.0°C31 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 29, 2025 — seafloor 60 m (measured), deepest dive 54 m (modelled)Apr 29May 1, 2025 — seafloor 79 m (measured), deepest dive 68 m (modelled)May 31, 2025 — seafloor 58 m (measured), deepest dive 53 m (modelled)Jun 1, 2025 — seafloor 51 m (measured), deepest dive 29 m (modelled)Jun 5, 2025 — seafloor 55 m (measured), deepest dive 40 m (modelled)Jun 5Jun 6, 2025 — seafloor 51 m (measured), deepest dive 25 m (modelled)Jun 8, 2025 — seafloor 76 m (measured), deepest dive 54 m (modelled)Jun 9, 2025 — seafloor 65 m (measured), deepest dive 56 m (modelled)Jul 6, 2025 — seafloor 60 m (measured), deepest dive 55 m (modelled)Jul 6Jul 6, 2025 — seafloor 70 m (measured), deepest dive 58 m (modelled)Jul 6, 2025 — seafloor 70 m (measured), deepest dive 56 m (modelled)Jul 7, 2025 — seafloor 60 m (measured), deepest dive 55 m (modelled)Jul 8, 2025 — seafloor 72 m (measured), deepest dive 48 m (modelled)Jul 8Jul 19, 2025 — seafloor 71 m (measured), deepest dive 58 m (modelled)Jul 21, 2025 — seafloor 97 m (measured), deepest dive 65 m (modelled)Jul 28, 2025 — seafloor 72 m (measured), deepest dive 51 m (modelled)Aug 18, 2025 — seafloor 77 m (measured), deepest dive 55 m (modelled)Aug 18Aug 25, 2025 — seafloor 76 m (measured), deepest dive 31 m (modelled)Sep 16, 2025 — seafloor 66 m (measured), deepest dive 36 m (modelled)Sep 17, 2025 — seafloor 68 m (measured), deepest dive 62 m (modelled)Oct 8, 2025 — seafloor 96 m (measured), deepest dive 47 m (modelled)Oct 8Oct 8, 2025 — seafloor 362 m (measured), deepest dive 216 m (modelled)Oct 11, 2025 — seafloor 119 m (measured), deepest dive 58 m (modelled)

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

Dives

216 m
Deepest dive
7:00
Longest dive
249
Dives
23 m
Avg dive depth
23
Sightings
165
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0125250216 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (362 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 · Oct 8, 2025

measured
Seafloor depth
362 m
Sea-surface temperature
16.9°C
Distance from shore
14.0 km

Across the residency · 23 sightings

measured
Seafloor depth
51 m – 362 m
Sea-surface temperature
12.8°C – 18.1°C
Distance from shore
2.0 km – 14.0 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 23 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.