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Title: Navigation effects on Asian carp movement past electric barrier, Chicago Sanitary and Ship Canal
Authors: Bryant, Duncan B.
Maynord, Stephen T.
Park, Howard E.
Coe, Lauren A.
Smith, S. Jarrell
Styles, Richard.
Keywords: Bighead carp--Migration
Silver carp--Migration
Boundary layer
Chicago Sanitary and Ship Canal (Ill.)
Publisher: Coastal and Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-16-2
Abstract: The potential migration of Asian carp through the Illinois River, Des Plaines River, and Chicago Area Waterway System (CAWS) is one risk facing the Great Lakes. In an effort to mitigate this risk, the U.S. Army Corps of Engineers (USACE) has installed a series of electric barriers within the Chicago Sanitary and Ship Canal (CSSC) to deter fish from using the canal as a pathway to enter the Great Lakes. Commercial tows operating within the CSSC produce a number of residual currents and forces that could potentially transport stunned fish across the barrier. The USACE Engineer Research and Development Center (ERDC), Coastal and Hydraulics Laboratory (CHL), was tasked by U.S. Army Engineer District, Chicago (LRC), to investigate barge/tow effects on the transport of Asian carp through the CSSC. A 1:16.7 scale physical model with remote-controlled tow and barges was used to evaluate the interactions of vessel, fluid motions, and nearly neutrally buoyant objects (model Asian carp) under a variety of southbound and northbound vessel speeds and barge configurations typical of the CSSC near the electric barrier. Southbound (downstream) tow tests showed fully integrated barges (rake on both ends with square barge in the middle) moving at minimal safe speed reduced fish transport. Northbound (upstream) tows transported fish by a number of mechanisms including the bow wave, boundary layer, recess between barges, and wake flow region behind barges. Transport between barges and in the wake flow behind barges moved model fish the farthest along the channel, sometimes reaching a net distance of over 2,000 feet. For northbound (upstream) barges, model fish transport was reduced by having a front square barge. However, no configuration and speed combination was found to eliminate the potential for model fish transport.
Description: Technical Report
Gov't Doc #: ERDC/CHL TR-16-2
Rights: Approved for Public Release; Distribution is Unlimited
Size: 69 pages / 1.898 Mb
Types of Materials: PDF
Appears in Collections:Technical Report

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