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

Bread Knife – Residency

60th sighting in Monterey Bay
Fluke of Bread Knife
Bread Knife Confirmed in the catalog @3005
May 15 – Nov 5, 2021 · Monterey Bay

Monterey Bay · May – Nov 2021

116 m
Deepest dive
4:36
Longest dive
180
Dives
Sightings
15
Days between first and last sighting
174

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 15, 2021306 m11.9°C67 m
May 16, 2021112 m12.0°C45 m
May 29, 2021276 m13.3°C82 m
May 31, 202165 m13.1°C58 m
Jun 5, 202173 m13.5°C55 m
Jul 3, 202133 m16.0°C29 m
Jul 4, 2021219 m15.2°C34 m
Jul 6, 202149 m15.4°C45 m
Aug 5, 202191 m17.0°C78 m
Aug 8, 2021567 m16.3°C116 m
Aug 11, 202175 m15.6°C53 m
Aug 29, 2021125 m17.2°C71 m
Nov 1, 202129 m14.7°C24 m
Nov 3, 202173 m15.0°C53 m
Nov 5, 202192 m15.1°C36 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
May 15, 2021 — seafloor 306 m (measured), deepest dive 67 m (modelled)May 15May 16, 2021 — seafloor 112 m (measured), deepest dive 45 m (modelled)May 29, 2021 — seafloor 276 m (measured), deepest dive 82 m (modelled)May 31, 2021 — seafloor 65 m (measured), deepest dive 58 m (modelled)May 31Jun 5, 2021 — seafloor 73 m (measured), deepest dive 55 m (modelled)Jul 3, 2021 — seafloor 33 m (measured), deepest dive 29 m (modelled)Jul 4, 2021 — seafloor 219 m (measured), deepest dive 34 m (modelled)Jul 4Jul 6, 2021 — seafloor 49 m (measured), deepest dive 45 m (modelled)Aug 5, 2021 — seafloor 91 m (measured), deepest dive 78 m (modelled)Aug 8, 2021 — seafloor 567 m (measured), deepest dive 116 m (modelled)Aug 8Aug 11, 2021 — seafloor 75 m (measured), deepest dive 53 m (modelled)Aug 29, 2021 — seafloor 125 m (measured), deepest dive 71 m (modelled)Nov 1, 2021 — seafloor 29 m (measured), deepest dive 24 m (modelled)Nov 1Nov 3, 2021 — seafloor 73 m (measured), deepest dive 53 m (modelled)Nov 5, 2021 — seafloor 92 m (measured), deepest dive 36 m (modelled)

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

Dives

116 m
Deepest dive
4:36
Longest dive
180
Dives
23 m
Avg dive depth
15
Sightings
174
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150116 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (567 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 8, 2021

measured
Seafloor depth
567 m
Sea-surface temperature
16.3°C
Distance from shore
16.0 km

Across the residency · 15 sightings

measured
Seafloor depth
29 m – 567 m
Sea-surface temperature
11.9°C – 17.2°C
Distance from shore
1.0 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 15 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.