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Assessing temporal patterns and species composition of glass eel (Anguila spp.) cohorts in Sumatra and Java using DNA barcodes

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Associated URL
www.mdpi.com
Date
2021-04-29
Author
Wibowo, Arif ORCID
Hubert, Nicolas ORCID
Dahruddin, Hadi
Steinke, Dirk ORCID
Suhaimi, Rezki Antoni
Samuel
Atminarso, Dwi ORCID
Anggraeni, Dian Pamularsih ORCID
Trismawanti, Ike ORCID
Baumgartner, Lee ORCID
Ning, Nathan ORCID
Subject
DNA barcoding ASFA
genetic diversity (as resource) ASFA
DNA sequences ASFA
DNA ASFA
species diversity ASFA
mitochondrial DNA ASFA
eels AGROVOC
Sumatra TGN
Java TGN
Taxonomic term
Anguilla GBIF
Metadata
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Abstract
Anguillid eels are widely acknowledged for their ecological and socio-economic value in many countries. Yet, knowledge regarding their biodiversity, distribution and abundance remains superficial—particularly in tropical countries such as Indonesia, where demand for anguillid eels is steadily increasing along with the threat imposed by river infrastructure developments. We investigated the diversity of anguillid eels on the western Indonesian islands of Sumatra and Java using automated molecular classification and genetic species delimitation methods to explore temporal patterns of glass eel cohorts entering inland waters. A total of 278 glass eels were collected from monthly samplings along the west coast of Sumatra and the south coast of Java between March 2017 and February 2018. An automated, DNA-based glass eel identification was performed using a DNA barcode reference library consisting of 64 newly generated DNA barcodes and 117 DNA barcodes retrieved from BOLD for all nine Anguilla species known to occur in Indonesia. Species delimitation methods converged in delineating eight Molecular Operational Taxonomic Units (MOTUs), with A. nebolusa and A. bengalensis being undistinguishable by DNA barcodes. A total of four MOTUs were detected within the glass eel samples, corresponding to Anguilla bicolor, A. interioris, A. marmorata, and A. nebulosa/A. bengalensis. Monthly captures indicated that glass eel recruitment peaks in June, during the onset of the dry season, and that A. bicolor is the most prevalent species. Comparing indices of mitochondrial genetic diversity between yellow/silver eels, originating from several sites across the species range distribution, and glass eels, collected in West Sumatra and Java, indicated a marked difference. Glass eels displayed a much lower diversity than yellow/silver eels. Implications for the management of glass eel fisheries and species conservation are discussed.
Keywords
species delimitation DNA-based classification genetic diversity catadromy conservation
URI
http://hdl.handle.net/20.500.14277/108
Suggested Citation
Wibowo, A., Hubert, N., Dahruddin, H., Steinke, D., Suhaimi, R. A., Samuel, Atminarso, D., Anggraeni, D. P., Trismawanti, I., Baumgartner, L., & Ning, N. (2021). Assessing temporal patterns and species composition of glass eel (Anguila spp.) cohorts in Sumatra and Java using DNA barcodes. Diversity, 13(5), 193. https://doi.org/10.3390/d13050193 
DOI
10.3390/d13050193
Type
Article
ISSN
1424-2818
Koleksi
  • Journal Articles [12]

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