Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Chatham Strait
Fluke of Gerhard (SE Alaska)
Gerhard (SE Alaska) Confirmed in the catalog @26699
May 28, 2026

Chatham Strait · May 2026

Modelled · this session
77 m
Deepest dive
1:50
Longest dive
7
Dives

Dive metrics are modelled within real depth limits — not measured

Dive profile

modelled
05010077 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (246 m) and the published dive-behaviour distribution. Modelled, not measured.

Measured · the place

Where this happened

measured
246 m
Seafloor depth
Sea-surface temp
3.0 km
From shore

Source · opentopodata/gebco2020 · erddap/ncdcOisst21Agg · pacioos-erddap/dist2coast_1deg