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Salish Sea

Merlin – Residency

75th sighting in Salish Sea
Fluke of Merlin
Merlin Confirmed in the catalog @4925
Jul 18 – Nov 30, 2025 · Salish Sea

Salish Sea · Jul – Nov 2025

92 m
Deepest dive
3:56
Longest dive
270
Dives
Sightings
22
Days between first and last sighting
135

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 18, 202599 m13.6°C30 m
Jul 18, 2025150 m13.6°C39 m
Jul 22, 2025106 m14.4°C43 m
Jul 28, 202582 m14.7°C41 m
Jul 31, 2025135 m17.7°C74 m
Aug 5, 2025163 m15.3°C32 m
Aug 5, 2025108 m15.3°C45 m
Aug 19, 202587 m14.9°C62 m
Aug 22, 202555 m14.2°C40 m
Sep 9, 2025157 m16.0°C37 m
Sep 17, 2025104 m13.5°C79 m
Sep 22, 202556 m12.4°C42 m
Sep 26, 2025148 m13.8°C51 m
Sep 27, 202586 m13.9°C35 m
Sep 27, 2025144 m13.9°C92 m
Sep 28, 202534 m14.1°C27 m
Sep 30, 2025117 m13.2°C65 m
Oct 3, 20258 m11.5°C6 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
Jul 18, 2025 — seafloor 99 m (measured), deepest dive 30 m (modelled)Jul 18Jul 18, 2025 — seafloor 150 m (measured), deepest dive 39 m (modelled)Jul 22, 2025 — seafloor 106 m (measured), deepest dive 43 m (modelled)Jul 28, 2025 — seafloor 82 m (measured), deepest dive 41 m (modelled)Jul 31, 2025 — seafloor 135 m (measured), deepest dive 74 m (modelled)Jul 31Aug 5, 2025 — seafloor 163 m (measured), deepest dive 32 m (modelled)Aug 5, 2025 — seafloor 108 m (measured), deepest dive 45 m (modelled)Aug 19, 2025 — seafloor 87 m (measured), deepest dive 62 m (modelled)Aug 22, 2025 — seafloor 55 m (measured), deepest dive 40 m (modelled)Aug 22Sep 9, 2025 — seafloor 157 m (measured), deepest dive 37 m (modelled)Sep 17, 2025 — seafloor 104 m (measured), deepest dive 79 m (modelled)Sep 22, 2025 — seafloor 56 m (measured), deepest dive 42 m (modelled)Sep 26, 2025 — seafloor 148 m (measured), deepest dive 51 m (modelled)Sep 26Sep 27, 2025 — seafloor 86 m (measured), deepest dive 35 m (modelled)Sep 27, 2025 — seafloor 144 m (measured), deepest dive 92 m (modelled)Sep 28, 2025 — seafloor 34 m (measured), deepest dive 27 m (modelled)Sep 30, 2025 — seafloor 117 m (measured), deepest dive 65 m (modelled)Sep 30Oct 3, 2025 — seafloor 8 m (measured), deepest dive 6 m (modelled)Oct 4, 2025 — seafloor 58 m (measured), deepest dive 32 m (modelled)Oct 6, 2025 — seafloor 38 m (measured), deepest dive 33 m (modelled)Nov 16, 2025 — seafloor 50 m (measured), deepest dive 34 m (modelled)Nov 16Nov 30, 2025 — seafloor 146 m (measured), deepest dive 85 m (modelled)

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

Dives

92 m
Deepest dive
3:56
Longest dive
270
Dives
19 m
Avg dive depth
22
Sightings
135
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010092 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (144 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 27, 2025

measured
Seafloor depth
144 m
Sea-surface temperature
13.9°C
Distance from shore
2.0 km

Across the residency · 22 sightings

measured
Seafloor depth
8 m – 163 m
Sea-surface temperature
10.3°C – 17.7°C
Distance from shore
1.0 km – 8.0 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 22 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.