NDLI: A modular assessment tool for managing introduced fishes according to risks of species and their populations, and impacts of management actions

Content Provider	Springer Nature Link
Author	Britton, J. Robert Copp, Gordon H. Brazier, Matt Davies, Gareth D.
Copyright Year	2011
Abstract	A modular assessment scheme for assisting the risk management of introduced fishes is described, with its recent application to England and Wales demonstrated. The initial module prioritises the introduced fishes in the risk assessment area according to their potential invasiveness and current distribution. The second module then assesses populations of the prioritised species in relation to the character of their receiving waters and the potential risks posed by their population in that circumstance; the output is a suggested management action for each population. The third module evaluates the suggested management action in relation to its potential impacts in the environment and how these impacts may be mitigated. The final module assesses the estimated cumulative cost of the selected management action relative to an alternative action. To demonstrate its potential value for managing extant populations of introduced fish, three eradication case-studies from England were assessed retrospectively using the scheme. This revealed eradication of two topmouth gudgeon Pseudorasbora parva populations was commensurate with their levels of ecological risk in the environment. By contrast, initial assessment of the eradication of a feral population of fathead minnow Pimephales promelas suggested control and containment was the commensurate management action due to a relatively low risk of natural dispersal. Application of the scheme elsewhere in the world and to other faunal groups should enable more objective decision-making in management programmes and enhance conservation outcomes.
Starting Page	2847
Ending Page	2860
Page Count	14
File Format	PDF
ISSN	13873547
Journal	Biological Invasions
Volume Number	13
Issue Number	12
e-ISSN	15731464
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-03-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Decision support Alien Introductions Invasive Risk management Ecology Freshwater & Marine Ecology Plant Sciences Developmental Biology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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