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LYS

Great Hammerhead

water

Great Hammerhead (Sphyrna mokarran) is the marine animal followed in the study “LYS · Great Hammerhead — OCEARCH animal”. Positions come from a satellite tag. The newest published position was recorded 26 July 2026, 11:58 am. This is an OCEARCH animal. This is a published observation, not a live location.

Finding a photograph…
Satellite photograph centred on the latest published position of this Great Hammerhead.
Satellite photograph of the latest published position. Imagery: Esri, Maxar, Earthstar Geographics, and the GIS User Community.
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Tamara's note

LYS · Great Hammerhead — OCEARCH animal: 467 historical reports newly added to this application.

Movement summary

Window 19 Apr 2026, 10:00 am → 26 July 2026, 11:58 am · 467 accepted reports · algorithm movement-summary/1.0.0

Reported-position distance
3,790 km
Segments / gaps
3 / 2
Longest gap
11.4 days
Median interval
30 min
Fastest segment
1,384,139.6 km/h between reports
Flagged for review · 521 flags
  • source qc · 467 flags across 467 reports
    Source QC flags: ocearch_animal.
  • implausible displacement rate · 54 flags across 87 reports
    Displacement of 2 km in 0.0 h exceeds the review threshold; may reflect positioning uncertainty, assignment problems or an outlier.

2 gap(s) longer than the 120 h gap rule; the route during each gap is unknown.

Deployments

TagTechnologyStartedEndedStatusReports
satellite argossatellite_argos26 July 2026, 11:58 am26 July 2026, 11:58 amReporting467

Planet Journal

Journey available

LYS · Great Hammerhead — OCEARCH animal

LYS · Great Hammerhead — OCEARCH animal: 467 historical reports newly added to this application.

Published 26 Oct 2026, 9:35 am · evidence checked 26 Oct 2026, 9:35 am

Journey available

LYS · Great Hammerhead — OCEARCH animal

LYS · Great Hammerhead — OCEARCH animal: 467 historical reports newly added to this application.

Published 26 Oct 2026, 9:07 am · evidence checked 26 Oct 2026, 9:07 am

References

  1. LYS is an OCEARCH animal. Tracking data courtesy of OCEARCH (ocearch.org/tracker). link

Generated 26 Oct 2026, 1:34 pm under publication policy policy:atn-erddap:default@1,policy:crossref:metadata@1,policy:gbif:default@1,policy:motus@1,policy:obis:default@1,policy:ocearch:default@1,policy:otn-geoserver:default@1,policy:stc:default@1.