Ecological risk assessment of grass carp (Ctenopharyngodon idella) for the Great Lakes Basin: Fs70-6/2016-057E-PDF

“Grass Carp (Ctenopharyngodon idella) is an herbivorous, freshwater fish that was first introduced in the United States in the early 1960s for use in biological control of aquatic vegetation. It has since escaped and dispersed through the Mississippi River basin towards the Great Lakes. To characterize the risk of Grass Carp to the Great Lakes basin, a binational ecological risk assessment of Grass Carp was conducted. This risk assessment covered both triploid (sterile) and diploid (fertile) Grass Carp and assessed the likelihood of arrival, survival, establishment, and spread, and the magnitude of the ecological consequences within 5, 10, 20 and 50 years from 2014 (i.e., the baseline year) to the connected Great Lakes basin (defined as the Great Lakes basin and its tributaries to the first impassable barrier; risk was assessed based on current climate conditions and at the individual lake scale but does not address a finer geographical scale (e.g., bay or sub-region). For triploid Grass Carp, the probability of occurrence (likelihood of arrival, survival, and spread) was assessed, and for diploid Grass Carp the probability of introduction (likelihood of arrival, survival, establishment and spread) was assessed"--Summary, p. 2.

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Department/Agency Department of Fisheries and Oceans. Ecosystems and Oceans Science.
Title Ecological risk assessment of grass carp (Ctenopharyngodon idella) for the Great Lakes Basin
Series Title Canadian Science Advisory Secretariat science advisory report,
Publication Type Series - View Master Record
Language [English]
Other Language Editions [French]
Format Electronic
Electronic Document

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Note Issued also in French under title: Évaluation du risque écologique de la carpe de roseau (Ctenopharyngodon idella) dans le bassin des Grands Lacs. Caption title. "January 2017." "This report is available from the: Centre for Science Advice (CSA), Central and Arctic Region, Fisheries and Oceans Canada"--p. 29.
Date c2017.
Number of Pages 29 p. :
Catalogue Number
  • Fs70-6/2016-057E-PDF
Subject Terms Invasive species, Freshwater fish, Environmental impact, Risk management