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Species composition and invasion risks of alien ornamental freshwater fishes from pet stores in Klang Valley, Malaysia.


ABSTRACT: The ornamental fish trade has been considered as one of the most important routes of invasive alien fish introduction into native freshwater ecosystems. Therefore, the species composition and invasion risks of fish species from 60 freshwater fish pet stores in Klang Valley, Malaysia were studied. A checklist of taxa belonging to 18 orders, 53 families, and 251 species of alien fishes was documented. Fish Invasiveness Screening Test (FIST) showed that seven (30.43%), eight (34.78%) and eight (34.78%) species were considered to be high, medium and low invasion risks, respectively. After the calibration of the Fish Invasiveness Screening Kit (FISK) v2 using the Receiver Operating Characteristics, a threshold value of 17 for distinguishing between invasive and non-invasive fishes was identified. As a result, nine species (39.13%) were of high invasion risk. In this study, we found that non-native fishes dominated (85.66%) the freshwater ornamental trade in Klang Valley, while FISK is a more robust tool in assessing the risk of invasion, and for the most part, its outcome was commensurate with FIST. This study, for the first time, revealed the number of high-risk ornamental fish species that give an awareness of possible future invasion if unmonitored in Klang Valley, Malaysia.

SUBMITTER: Saba AO 

PROVIDER: S-EPMC7560888 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Species composition and invasion risks of alien ornamental freshwater fishes from pet stores in Klang Valley, Malaysia.

Saba Abdulwakil Olawale AO   Ismail Ahmad A   Zulkifli Syaizwan Zahmir SZ   Halim Muhammad Rasul Abdullah MRA   Wahid Noor Azrizal Abdul NAA   Amal Mohammad Noor Azmai MNA  

Scientific reports 20201014 1


The ornamental fish trade has been considered as one of the most important routes of invasive alien fish introduction into native freshwater ecosystems. Therefore, the species composition and invasion risks of fish species from 60 freshwater fish pet stores in Klang Valley, Malaysia were studied. A checklist of taxa belonging to 18 orders, 53 families, and 251 species of alien fishes was documented. Fish Invasiveness Screening Test (FIST) showed that seven (30.43%), eight (34.78%) and eight (34.  ...[more]

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