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

Hydra – Residency

17th sighting in Salish Sea
Fluke of Hydra
Hydra Confirmed in the catalog @4666
Aug 21 – Nov 3, 2019 · Salish Sea

Salish Sea · Aug – Nov 2019

99 m
Deepest dive
4:18
Longest dive
113
Dives
Sightings
10
Days between first and last sighting
74

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 21, 2019147 m12.4°C80 m
Sep 4, 2019148 m11.8°C37 m
Oct 14, 2019158 m10.0°C70 m
Oct 22, 2019108 m9.9°C99 m
Oct 23, 2019108 m10.0°C54 m
Oct 26, 2019176 m9.6°C39 m
Oct 31, 201991 m9.8°C66 m
Nov 1, 2019101 m9.8°C81 m
Nov 2, 201990 m9.7°C67 m
Nov 3, 201945 m9.6°C38 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 21, 2019 — seafloor 147 m (measured), deepest dive 80 m (modelled)Aug 21Sep 4, 2019 — seafloor 148 m (measured), deepest dive 37 m (modelled)Sep 4Oct 14, 2019 — seafloor 158 m (measured), deepest dive 70 m (modelled)Oct 14Oct 22, 2019 — seafloor 108 m (measured), deepest dive 99 m (modelled)Oct 22Oct 23, 2019 — seafloor 108 m (measured), deepest dive 54 m (modelled)Oct 23Oct 26, 2019 — seafloor 176 m (measured), deepest dive 39 m (modelled)Oct 26Oct 31, 2019 — seafloor 91 m (measured), deepest dive 66 m (modelled)Oct 31Nov 1, 2019 — seafloor 101 m (measured), deepest dive 81 m (modelled)Nov 1Nov 2, 2019 — seafloor 90 m (measured), deepest dive 67 m (modelled)Nov 2Nov 3, 2019 — seafloor 45 m (measured), deepest dive 38 m (modelled)Nov 3

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

Dives

99 m
Deepest dive
4:18
Longest dive
113
Dives
25 m
Avg dive depth
10
Sightings
74
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010099 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (108 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 22, 2019

measured
Seafloor depth
108 m
Sea-surface temperature
9.9°C
Distance from shore
8.0 km

Across the residency · 10 sightings

measured
Seafloor depth
45 m – 176 m
Sea-surface temperature
9.6°C – 12.4°C
Distance from shore
6.0 km – 12.0 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 10 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.