scholarly journals Trans-Pacific shipboard trials on planktonic communities as indicators of open ocean ballast water exchange

2007 ◽  
Vol 350 ◽  
pp. 41-54 ◽  
Author(s):  
MD Taylor ◽  
LM MacKenzie ◽  
TJ Dodgshun ◽  
GA Hopkins ◽  
EJ de Zwart ◽  
...  
Keyword(s):  
Ballast Water ◽  
Water Exchange ◽  
Open Ocean ◽  
Planktonic Communities

scholarly journals Efficacy of open-ocean ballast water exchange: a review

2016 ◽  
Vol 7 (4) ◽  
pp. 375-388 ◽  
Author(s):  
Vanessa Molina ◽  
Lisa Drake
Keyword(s):  
Ballast Water ◽  
Water Exchange ◽  
Open Ocean

scholarly journals Efficacy of open-ocean ballast water exchange as a means of preventing invertebrate invasions between freshwater ports

2007 ◽  
Vol 52 (6) ◽  
pp. 2386-2397 ◽  
Author(s):  
Derek K. Gray ◽  
Thomas H. Johengen ◽  
David F. Reid ◽  
Hugh J. MacIsaac
Keyword(s):  
Ballast Water ◽  
Water Exchange ◽  
Open Ocean

scholarly journals Net efficacy of open ocean ballast water exchange on plankton communities

2011 ◽  
Vol 33 (9) ◽  
pp. 1378-1395 ◽  
Author(s):  
Nathalie Simard ◽  
Stéphane Plourde ◽  
Michel Gilbert ◽  
Stephan Gollasch
Keyword(s):  
Ballast Water ◽  
Water Exchange ◽  
Open Ocean ◽  
Plankton Communities

Invertebrates associated with residual ballast water and sediments of cargo-carrying ships entering the Great Lakes

2005 ◽  
Vol 62 (11) ◽  
pp. 2463-2474 ◽  
Author(s):  
Ian C Duggan ◽  
Colin DA van Overdijk ◽  
Sarah A Bailey ◽  
Philip T Jenkins ◽  
Helene Limén ◽  
...  
Keyword(s):  
Great Lakes ◽  
Ballast Water ◽  
Water Exchange ◽  
Open Ocean ◽  
Nonindigenous Species ◽  
Residual Water ◽  
Ocean Water ◽  
Water Fraction

Most ships entering the Great Lakes carry cargo and declare “no-ballast-on board” (NOBOB) status. Approximately 250 of these vessels annually load Great Lakes’ ballast water when they offload inbound cargo and then discharge this water (which has now mixed with residual water previously present in the tanks) when they load outbound cargo. This procedure potentially allows nonindigenous species present in ballast residuals to invade the Great Lakes. We collected residual sediment, water, and associated organisms from 38 NOBOB ships entering the Great Lakes. We recorded seven established Great Lakes’ nonindigenous species, including some discovered since ballast water exchange was implemented. Occurrences of species not yet invaded indicate that this vector provides further opportunity for invasion. Collectively, NOBOB vessels appear to constitute a greater risk than ballasted vessels, as they make up a greater proportion of the traffic entering the lakes (~90%), and they do not undergo ballast exchange. Invertebrates in residual water appear to have a greater opportunity for discharge than those in sediments, although most in the water fraction have already invaded this system. Invertebrate numbers in residual freshwater ballast could be dramatically lowered if these vessels flushed with open-ocean water prior to entering the Great Lakes.

EVALUATING AN INVASIVE SPECIES POLICY: BALLAST WATER EXCHANGE IN THE GREAT LAKES

2007 ◽  
Vol 17 (3) ◽  
pp. 655-662 ◽  
Author(s):  
Christopher Costello ◽  
John M. Drake ◽  
David M. Lodge
Keyword(s):  
Invasive Species ◽  
Great Lakes ◽  
Ballast Water ◽  
Water Exchange ◽  
Invasive Species Policy

Numerical Simulation of Sloshing of Water in Ship Tanks During Sequential Ballast Water Exchange in Seaways

2002 ◽  
Author(s):  
Makoto Arai ◽  
Humberto S. Makiyama ◽  
Liang-Yee Cheng
Keyword(s):  
Ballast Water ◽  
Water Exchange ◽  
Sea Water ◽  
Marine Pollution ◽  
Aquatic Organisms ◽  
Exchange Method ◽  
Ballast Tank ◽  
Open Sea ◽  
Merchant Ship ◽  
Ballast Tanks

In recent years, ballast water has been blamed for a variety of marine pollution problems, particularly for transporting harmful aquatic organisms from one part of the world to another and damaging the ecosystem of the new areas. A relatively simple mechanism to control this problem is to exchange ballast water on the high seas between ports in order to remove invasive species before the ship reaches its destination. However, some issues regarding ballast exchange on the open sea need to be addressed before this operation is introduced. One of them is the sloshing of the sea water in the ballast tank. In this paper, ballast water exchange on the open sea by means of the Sequential exchange method is simulated. Irregular seaways are generated from the ISSC spectrum, and the sloshing response of the water in the ballast tanks of a large merchant ship is numerically computed by using a finite difference code developed by the authors. The results showed that there is little possibility that severe sloshing presents a serious problem in regard to the ballast tank’s strength, especially in the case of a bulk carrier whose tanks are generally short in length, with sloshing anticipated only at the low water level.

scholarly journals Ballast Water Exchange and Invasion Risk Posed by Intracoastal Vessel Traffic: An Evaluation Using High Throughput Sequencing

2018 ◽  
Vol 52 (17) ◽  
pp. 9926-9936 ◽  
Author(s):  
John A. Darling ◽  
John Martinson ◽  
Yunguo Gong ◽  
Sara Okum ◽  
Erik Pilgrim ◽  
...  
Keyword(s):  
High Throughput ◽  
Ballast Water ◽  
Water Exchange ◽  
High Throughput Sequencing ◽  
Invasion Risk
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