Ecological separation with hydraulic connectivity: An engineering solution to eliminate common carp from environmental flows in Australia

Robert Keller

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Common carp (Cyprinus carpio) is a major and widespread pest species in southeast Australia. The recent emphasis on the restoration of environmental flows to natural waterways has emphasized the issue of preventing the movement of carp into currently carp-free areas while permitting the passage of major water flows. Biological control techniques are still many years away from effective implementation. In the meantime, the use of engineered structures represents an important mechanism for the exclusion of carp. This paper presents a case study of a non-discriminatory structure. This structure was shown, through a physical model study, to be very effective in capturing better than 97 of introduced samples of carp eggs and carp fingerlings while passing unrestricted water flows.. Of the less than 3 that passed through the structure, 10 - or less than 0.3 of the total introduced sample - was considered viable. Following the success of the model study, a prototype structure was built. Monitoring results from the prototype structure support the model predictions.
Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2012: Crossing Boundaries
EditorsEric D Loucks
Place of PublicationUSA
PublisherAmerican Society of Civil Engineers
Pages1334 - 1340
Number of pages7
ISBN (Print)9780784412312
Publication statusPublished - 2012
EventWorld Environmental and Water Resources Congress 2012: Crossing Boundaries - Albuquerque, United States of America
Duration: 20 May 201224 May 2012
Conference number: 12th


ConferenceWorld Environmental and Water Resources Congress 2012
Abbreviated titleEWRI 2012
Country/TerritoryUnited States of America
Internet address

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