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

Hopper – Residency

118th sighting in Monterey Bay
Fluke of Hopper
Hopper Confirmed in the catalog @7100
Sep 8 – Nov 8, 2024 · Monterey Bay

Monterey Bay · Sep – Nov 2024

100 m
Deepest dive
3:40
Longest dive
90
Dives
Sightings
7
Days between first and last sighting
61

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 8, 2024108 m16.5°C70 m
Sep 15, 202472 m14.9°C61 m
Sep 17, 202473 m15.0°C32 m
Oct 16, 202451 m15.5°C44 m
Oct 26, 202490 m14.4°C72 m
Oct 26, 202476 m14.5°C41 m
Nov 8, 2024116 m12.7°C100 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 8, 2024 — seafloor 108 m (measured), deepest dive 70 m (modelled)Sep 8Sep 15, 2024 — seafloor 72 m (measured), deepest dive 61 m (modelled)Sep 15Sep 17, 2024 — seafloor 73 m (measured), deepest dive 32 m (modelled)Sep 17Oct 16, 2024 — seafloor 51 m (measured), deepest dive 44 m (modelled)Oct 16Oct 26, 2024 — seafloor 90 m (measured), deepest dive 72 m (modelled)Oct 26Oct 26, 2024 — seafloor 76 m (measured), deepest dive 41 m (modelled)Oct 26Nov 8, 2024 — seafloor 116 m (measured), deepest dive 100 m (modelled)Nov 8

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

Dives

100 m
Deepest dive
3:40
Longest dive
90
Dives
24 m
Avg dive depth
7
Sightings
61
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
050100100 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (116 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 8, 2024

measured
Seafloor depth
116 m
Sea-surface temperature
12.7°C
Distance from shore
7.0 km

Across the residency · 7 sightings

measured
Seafloor depth
51 m – 116 m
Sea-surface temperature
12.7°C – 16.5°C
Distance from shore
2.0 km – 7.0 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 7 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.