Skip to Main Content
PTAGIS logo link back to home page

Interrogation Site Metadata

ESX - Estuary Saltwater Experiment

Status:   Decommissioned
Site Type: Trawl Net  |  Organization: NOAA Fisheries
General Operational Period:
Start Date: 5/5/2004 12:00 AM
End Date: 6/9/2005 3:00 PM

Salt Water & Estuary Trawl Detector. The ESX experimental saltwater trawl detector was typically deployed in the lower Columbia River estuary, downsteam of the Highway 101 bridge.


Data Steward:

Richard Ledgerwood


Coordinates: 46.211555, -123.963177  |  River Km:

Operational History

Operational history describes the period the site was interrogating for PIT tags. The comments provide anecdotal information about the operation of the site during this period. Site operational periods are updated typically at the end of the calendar year.

Year Start Date End Date Comments
2005 5/13/2005 12:30 PM 6/9/2005 3:00 PM Per Dick Ledgerwood, actual sampling efforts for ESX commenced on May 16 and concluded on June 8, 2005. This is the last year for ESX.
2004 5/5/2004 12:00 AM 6/10/2004 12:00 AM First year of new Estuarine & Saltwater Trawl site, sampling between the river mouth and the Astoria-Meagler Bridge. The start and end dates were provided by Dick Ledgerwood.


Configuration metadata includes details about the equipment used at the site to detect and record PIT tags. A new configuration sequence record is created when equipment is added or removed from the site and the period of time it was active. A configuration sequence without an End Date is currently active.

Select Configuration Number:
Start Date:  3/1/2003
End Date:  6/9/2005

Equipment History

Select a type to view the history of equipment installed at this site. A missing End Date implies the information about the equipment is current.

Select Equipment Type:
Equipment Code Description Start Date End Date

No Photos

Event Log Summary

Event Date Event Type Comments

Archived Event Logs