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Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
North Pacific

Twitch – Residency

Fluke of Twitch
Twitch Confirmed in the catalog @39550
Aug 30 – Dec 8, 2021 · North Pacific

North Pacific · Aug – Dec 2021

365 m
Deepest dive
13:45
Longest dive
151
Dives
Sightings
11
Days between first and last sighting
100
Deepest dive on record
365 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 30, 202155 m19.7°C41 m
Sep 9, 2021490 m21.8°C121 m
Sep 9, 2021540 m21.3°C365 m
Oct 2, 2021717 m21.1°C196 m
Oct 10, 2021622 m20.2°C71 m
Oct 10, 202149 m19.6°C37 m
Oct 10, 2021638 m20.2°C365 m
Oct 10, 2021577 m20.0°C42 m
Oct 29, 2021211 m16.4°C46 m
Dec 8, 20211,009 m16.7°C36 m
Dec 8, 2021852 m17.7°C94 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 30, 2021 — seafloor 55 m (measured), deepest dive 41 m (modelled)Aug 30Sep 9, 2021 — seafloor 490 m (measured), deepest dive 121 m (modelled)Sep 9Sep 9, 2021 — seafloor 540 m (measured), deepest dive 365 m (modelled)Sep 9Oct 2, 2021 — seafloor 717 m (measured), deepest dive 196 m (modelled)Oct 2Oct 10, 2021 — seafloor 622 m (measured), deepest dive 71 m (modelled)Oct 10Oct 10, 2021 — seafloor 49 m (measured), deepest dive 37 m (modelled)Oct 10Oct 10, 2021 — seafloor 638 m (measured), deepest dive 365 m (modelled)Oct 10Oct 10, 2021 — seafloor 577 m (measured), deepest dive 42 m (modelled)Oct 10Oct 29, 2021 — seafloor 211 m (measured), deepest dive 46 m (modelled)Oct 29Dec 8, 2021 — seafloor 1,009 m (measured), deepest dive 36 m (modelled)Dec 8Dec 8, 2021 — seafloor 852 m (measured), deepest dive 94 m (modelled)Dec 8

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

Dives

365 m
Deepest dive
13:45
Longest dive
151
Dives
34 m
Avg dive depth
11
Sightings
100
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0200400365 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (540 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 · Sep 9, 2021

measured
Seafloor depth
540 m
Sea-surface temperature
21.3°C
Distance from shore
7.0 km

Across the residency · 11 sightings

measured
Seafloor depth
49 m – 1,009 m
Sea-surface temperature
16.4°C – 21.8°C
Distance from shore
3.0 km – 47.0 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 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.