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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
Jun 6 – Nov 22, 2020 · North Pacific

North Pacific · Jun – Nov 2020

303 m
Deepest dive
14:12
Longest dive
498
Dives
Sightings
39
Days between first and last sighting
168

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jun 6, 2020740 m19.3°C123 m
Jun 7, 2020613 m19.6°C104 m
Jun 11, 202049 m18.2°C39 m
Jun 18, 2020469 m19.2°C225 m
Jun 19, 2020270 m19.3°C61 m
Jun 20, 2020632 m19.3°C63 m
Jun 21, 2020663 m19.3°C292 m
Jul 15, 2020156 m21.3°C119 m
Jul 17, 2020185 m21.6°C64 m
Jul 19, 2020106 m20.4°C81 m
Jul 22, 2020330 m18.6°C62 m
Jul 23, 2020301 m18.6°C75 m
Jul 25, 202079 m19.7°C35 m
Jul 26, 2020274 m18.6°C89 m
Jul 30, 202087 m18.6°C55 m
Jul 31, 2020435 m19.4°C76 m
Aug 3, 2020102 m20.8°C45 m
Aug 5, 2020341 m20.8°C144 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
Jun 6, 2020 — seafloor 740 m (measured), deepest dive 123 m (modelled)Jun 6Jun 7, 2020 — seafloor 613 m (measured), deepest dive 104 m (modelled)Jun 11, 2020 — seafloor 49 m (measured), deepest dive 39 m (modelled)Jun 18, 2020 — seafloor 469 m (measured), deepest dive 225 m (modelled)Jun 19, 2020 — seafloor 270 m (measured), deepest dive 61 m (modelled)Jun 20, 2020 — seafloor 632 m (measured), deepest dive 63 m (modelled)Jun 21, 2020 — seafloor 663 m (measured), deepest dive 292 m (modelled)Jul 15, 2020 — seafloor 156 m (measured), deepest dive 119 m (modelled)Jul 15Jul 17, 2020 — seafloor 185 m (measured), deepest dive 64 m (modelled)Jul 19, 2020 — seafloor 106 m (measured), deepest dive 81 m (modelled)Jul 22, 2020 — seafloor 330 m (measured), deepest dive 62 m (modelled)Jul 23, 2020 — seafloor 301 m (measured), deepest dive 75 m (modelled)Jul 25, 2020 — seafloor 79 m (measured), deepest dive 35 m (modelled)Jul 26, 2020 — seafloor 274 m (measured), deepest dive 89 m (modelled)Jul 30, 2020 — seafloor 87 m (measured), deepest dive 55 m (modelled)Jul 30Jul 31, 2020 — seafloor 435 m (measured), deepest dive 76 m (modelled)Aug 3, 2020 — seafloor 102 m (measured), deepest dive 45 m (modelled)Aug 5, 2020 — seafloor 341 m (measured), deepest dive 144 m (modelled)Aug 6, 2020 — seafloor 329 m (measured), deepest dive 270 m (modelled)Aug 7, 2020 — seafloor 107 m (measured), deepest dive 18 m (modelled)Aug 8, 2020 — seafloor 349 m (measured), deepest dive 91 m (modelled)Aug 9, 2020 — seafloor 253 m (measured), deepest dive 160 m (modelled)Aug 9Aug 11, 2020 — seafloor 80 m (measured), deepest dive 58 m (modelled)Aug 12, 2020 — seafloor 280 m (measured), deepest dive 62 m (modelled)Aug 13, 2020 — seafloor 318 m (measured), deepest dive 155 m (modelled)Aug 15, 2020 — seafloor 282 m (measured), deepest dive 94 m (modelled)Aug 16, 2020 — seafloor 223 m (measured), deepest dive 45 m (modelled)Oct 6, 2020 — seafloor 696 m (measured), deepest dive 89 m (modelled)Oct 8, 2020 — seafloor 586 m (measured), deepest dive 212 m (modelled)Oct 8Oct 9, 2020 — seafloor 472 m (measured), deepest dive 110 m (modelled)Oct 10, 2020 — seafloor 472 m (measured), deepest dive 122 m (modelled)Oct 15, 2020 — seafloor 36 m (measured), deepest dive 32 m (modelled)Oct 16, 2020 — seafloor 49 m (measured), deepest dive 29 m (modelled)Oct 17, 2020 — seafloor 562 m (measured), deepest dive 65 m (modelled)Oct 18, 2020 — seafloor 556 m (measured), deepest dive 303 m (modelled)Oct 21, 2020 — seafloor 650 m (measured), deepest dive 171 m (modelled)Oct 21Oct 24, 2020 — seafloor 478 m (measured), deepest dive 111 m (modelled)Nov 20, 2020 — seafloor 582 m (measured), deepest dive 265 m (modelled)Nov 22, 2020 — seafloor 719 m (measured), deepest dive 92 m (modelled)

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

Dives

303 m
Deepest dive
14:12
Longest dive
498
Dives
32 m
Avg dive depth
39
Sightings
168
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0175350303 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (556 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 18, 2020

measured
Seafloor depth
556 m
Sea-surface temperature
22.4°C
Distance from shore
15.0 km

Across the residency · 39 sightings

measured
Seafloor depth
36 m – 740 m
Sea-surface temperature
16.2°C – 22.5°C
Distance from shore
1.0 km – 23.0 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 39 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).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.