Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Chatham Strait

SEAK-1852 – Residency

5th sighting in Chatham Strait
Fluke of SEAK-1852
SEAK-1852 Confirmed in the catalog @5661
Jun 12 – Jul 31, 2019 · Chatham Strait

Chatham Strait · Jun – Jul 2019

43 m
Deepest dive
2:04
Longest dive
34
Dives
Sightings
3
Days between first and last sighting
49

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jun 12, 201949 m—43 m
Jul 24, 201977 m—33 m
Jul 31, 2019166 m—40 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 12, 2019 — seafloor 49 m (measured), deepest dive 43 m (modelled)Jun 12Jul 24, 2019 — seafloor 77 m (measured), deepest dive 33 m (modelled)Jul 24Jul 31, 2019 — seafloor 166 m (measured), deepest dive 40 m (modelled)Jul 31

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

Dives

43 m
Deepest dive
2:04
Longest dive
34
Dives
19 m
Avg dive depth
3
Sightings
49
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255043 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (49 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.

Unlock with Risa Deep

Place

Where this happened · Jun 12, 2019

measured
Seafloor depth
49 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 3 sightings

measured
Seafloor depth
49 m – 166 m
Sea-surface temperature
—
Distance from shore
1.0 km – 4.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

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

Source records

This activity is assembled from 3 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.