EVENT LOG FOR SITE TWX

        The first line of each entry contains a date/time stamp & who is reporting.
        The most recent entry is listed first.

Date       Time  Who
---------- ----- --------
12/07/2006 16:49 Ledgerwo
    Sampling with the large trawl 2-coil (in series) antenna system in 2006
    at Rkm 75 began intermittently in March and April then continued with
    two daily crews 29 April-23 June.  A single daily crew sampled through
    20 July, 5 days a week.  Sampling stopped through 5 September, then
    continued 2 or 3 days a week through October, ending 1 Nov.  Total large
    trawl sample in 2006 (detector energized and under tow) was 961 hours
    with 12,359 unique fish detections.

    Between March and October, we also sampled intermittently with a
    single-coil shoreline sampler (88 hours, 1 detection) and with a
    proto-type 2-coil, side by side antenna system ('Matrix') measuring 8.5
    feet wide by 10 feet tall (37 hours and 10 detections).
09/06/2006 14:17 Ledgerwo
    Sampling with the large trawl was interrupted after 20 July 2006 through
    5 September 2006.  Few PIT-tagged fish were expected to pass into the
    estuary during this high temperature mid-July to August time period.  We
    will continue sampling intermittently, 2 or 3 days per week until mid to
    late September when numbers of PIT-tagged sub-yearling Snake River fall
    Chinook salmon are expected to increase.  Sampling 4 or 5 days per week
    is expected to continue into mid-October.
04/10/2006 08:29 site_eve
    Electronics testing and equipment preparation activities for the large
    surface pair-trawling effort began near Jones Beach, river kilometer 75
    (site code TWX) in early March.  In 2006, we constructed a new PIT-tag
    detection antenna.  This antenna is 45-inches long antenna and has two
    45-inch diameter coils(in-line front to rear). We also adapted Destron
    FS1001M (MUX) transceivers and use MiniMon software for recording
    interrogation data.

    Sampling with large trawl began 9 March and continues MWF.  We are also
    on TT sampling with the single antenna coil shoreline sampler used in
    2005.  Intermittently sampling will continue through mid-April when,
    depending on detection numbers, sampling with the large trawl will
    increase to 5 and then 7 days per week and 2-shifts per day through
    mid-June. Sampling with a single daily crew will continued into August
    targeting subyearling fall Chinook salmon.  Sampling for subyearling
    migrants will also occur along the shoreline at this time.

    We anticipate deployment of an experimental 'Matrix' antenna/trawl
    system intermittently in early June.  This antenna is a proto-type
    constructed of 3 side by side, 40-inch wide by 10-feet tall antenna
    coils.  The goal is 10 to 12 simultaneous deployments with the large
    trawl system.

    TWX 2006 site map:
    1. Large trawl site TWX primary.  Transceiver ID B0, antenna coil
    designations (MUX ports): B1, B2, B3, B4, B5, and B6.  Two front to rear
    coils at a time.
    2.  Shoreline sampler site TWX secondary.  Transceiver ID "A0" single
    antenna coil designations (MUX port):A1,A2,A3,A4,A5, and A6.
    3.  Matrix trawl site TWX (secondary).  Transceiver ID C0.  Three side
    by side coils coil designations: C1,C2,C3,C4,C5, or C6.
01/01/2006 12:40 PTOC_Bot
    Annual log file initiation for TWX

         #### End of Event Log for TWX ###