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Risk analysis of non?native three?spot cichlid, Amphilophus trimaculatus, in the River Cauvery (India)

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Title Risk analysis of non?native three?spot cichlid, Amphilophus trimaculatus, in the River Cauvery (India)
 
Creator R. K. Manna
 
Subject Amphilophus trimaculatus,Risk analysis,Cauvery
 
Description Not Available
The three?spot cichlid Amphilophus trimaculatus (G?nther) is an ornamental fish known to be invasive but has not been assessed for India. The present study confirmed this non?native species? identity using conventional and molecular methods, as well as its occurrence in the River Cauvery, the first for this species in a lotic environment outside its native range. Gut content analysis indicated a diet of predominantly insects. The river's water quality and habitat were conducive for the species? growth and reproduction. Using the Aquatic Species Invasiveness Screening Kit, A. trimaculatus was ranked as posing a ?high? risk of being invasive in the River Cauvery, with climate match analysis showing 58% similarity with the species? native range. Vector and pathway analysis found that A. trimaculatus was introduced to India via the aquarium trade, although consignment origin remains unknown, and the most likely means of entry into the river and its tributaries was the species? escaping from holding facilities. Subsequent dispersal and impact of the species on native fauna are discussed. The study's outcomes demonstrate the importance of using risk analysis protocols to inform management of non?native species in India, with suggestions provided for immediate and long?term measures for the species? management.
 
Date 2021-04-28T11:35:52Z
2021-04-28T11:35:52Z
2021-4-1
 
Type Research Paper
 
Identifier Lohith Kumar, Kavita Kumari, Pranab Gogoi, Ranjan Kumar Manna, Roshith Chakkiyath Madayi, Sibina Mol Salim, Vijaykumar Muttanahalli Eregowda, Suresh Vettath Raghavan, Basanta Kumar Das. 2021. Risk analysis of non?native three?spot cichlid, Amphilophus trimaculatus, in the River Cauvery (India)
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0969-997X
http://krishi.icar.gov.in/jspui/handle/123456789/46822
 
Language English
 
Publisher Not Available