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

Cotter – Residency

Fluke of Cotter
Cotter Confirmed in the catalog @143240
Aug 23, 2026 · North Atlantic

North Atlantic · Aug 2026

81 m
Deepest dive
4:40
Longest dive
8
Dives
Sightings
1
Days between first and last sighting
Same day
Deepest dive on record
81 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 23, 202698 m16.9°C81 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 23, 2026 — seafloor 98 m (measured), deepest dive 81 m (modelled)Aug 23

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

Dives

81 m
Deepest dive
4:40
Longest dive
8
Dives
33 m
Avg dive depth
1
Sightings
Same day
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010081 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (98 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 23, 2026

measured
Seafloor depth
98 m
Sea-surface temperature
16.9°C
Distance from shore
4.0 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 1 catalogued encounter 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.