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

Hopper – Residency

91st sighting in Monterey Bay
Fluke of Hopper
Hopper Confirmed in the catalog @7100
Aug 29 – Sep 10, 2020 · Monterey Bay

Monterey Bay · Aug – Sep 2020

203 m
Deepest dive
9:18
Longest dive
78
Dives
Sightings
6
Days between first and last sighting
12

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 29, 2020367 m15.1°C203 m
Sep 2, 20201,440 m15.8°C100 m
Sep 4, 202015 m16.2°C14 m
Sep 7, 202085 m17.4°C55 m
Sep 9, 2020545 m17.4°C130 m
Sep 10, 2020511 m17.3°C97 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 29, 2020 — seafloor 367 m (measured), deepest dive 203 m (modelled)Aug 29Sep 2, 2020 — seafloor 1,440 m (measured), deepest dive 100 m (modelled)Sep 2Sep 4, 2020 — seafloor 15 m (measured), deepest dive 14 m (modelled)Sep 4Sep 7, 2020 — seafloor 85 m (measured), deepest dive 55 m (modelled)Sep 7Sep 9, 2020 — seafloor 545 m (measured), deepest dive 130 m (modelled)Sep 9Sep 10, 2020 — seafloor 511 m (measured), deepest dive 97 m (modelled)Sep 10

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

Dives

203 m
Deepest dive
9:18
Longest dive
78
Dives
30 m
Avg dive depth
6
Sightings
12
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0125250203 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (367 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 · Aug 29, 2020

measured
Seafloor depth
367 m
Sea-surface temperature
15.1°C
Distance from shore
7.0 km

Across the residency · 6 sightings

measured
Seafloor depth
15 m – 1,440 m
Sea-surface temperature
15.1°C – 17.4°C
Distance from shore
7.0 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 6 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.