Genetic diversity and structure of striped snakehead (Channa striata) in the Lower Mekong Basin: Implications for aquaculture and fisheries management

Yên, Dương Thúy; Uy, Sophorn; Phen, Chheng; So, Nam; Tran, Thanh-Hien Thi; Nguyen, Nhan; Pomeroy, Robert S.; Egna, Hillary

doi:10.1016/j.fishres.2019.05.014

Cited by 18 publications

(15 citation statements)

References 44 publications

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“…The most common mitochondrial (mt) genes used for this purpose have been cytochrome b, 16S rRNA, and cytochrome oxidase I (COI). Other mtDNA targets, such as the mtDNA control region (CR) [16,17], which has been the most popular molecular marker used for genetic population structure studies [18,19,20,21,22,23,24], have seen limited use in fish and seafood species identification. In recent years, COI has been standardized as a barcode gene for species identification in several animal taxa [25,26,27,28,29,30,31,32,33] including fishes [34,35,36,37,38,39,40].…”

Section: Introductionmentioning

confidence: 99%

Swordfish or Shark Slice? A Rapid Response by COIBar–RFLP

Ferrito

Raffa

Rossitto

et al. 2019

Foods

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Market transparency is in strong demand by consumers, and the authentication of species is an important step for seafood traceability. In this study, a simple molecular strategy, COIBar–RFLP (cytochrome oxidase I barcode–restriction fragment length polymorphism), is proposed to unveil commercial fraud based on the practice of species substitution in the swordfish trade. In particular, COI barcoding allowed the identification of the species Prionace glauca, Mustelus mustelus, and Oxynotus centrina in slices labeled as Xiphias gladius. Furthermore, the enzymatic digestion of COI amplicons using the MboI restriction endonuclease allowed the simultaneous discrimination of the four species. Interestingly, an intraspecific differential MboI pattern was obtained for the swordfish samples. This pattern was useful to differentiate the two different clades revealed in this species by phylogenetic analyses using several molecular markers. These results indicate the need to strengthen regulations and define molecular tools for combating the occurrence of fraud along the seafood supply chain and show that COIBar–RFLP could become a standardized molecular tool to assess seafood authenticity.

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Section: Introductionmentioning

confidence: 99%

Swordfish or Shark Slice? A Rapid Response by COIBar–RFLP

Ferrito

Raffa

Rossitto

et al. 2019

Foods

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“…In addition, efforts should be made to domesticate snakehead fish, enabling them to remain sustainable in the future, particularly in Java. Domestication efforts have been carried out on snakehead (C. strita) in Cambodia based on the high genetic diversity in the Mekong Basin (Duong et al 2019) and development of seed mass production of snakehead in the Sunda Plate (Sumatra, Java, and Kalimantan) (Saputra et al 2021).…”

Section: Estimated Exploitation Rate Of Channa Striatamentioning

confidence: 99%

“…This species prefers aquatic habitats with dense aquatic vegetation, shallow and transparent water. It is necessary to implement a habitat and species conservation strategy for C. striata so that its population can be maintained (Biswas et al 2015;Duong et al 2019;Setyaningrum et al 2021). There have been few studies of the exploitation rate of snakehead fish in Java, particularly in reservoir waters.…”

Section: Introductionmentioning

confidence: 99%

Exploitation of striped snakehead (Channa striata) in Sempor Reservoir, Central Java, Indonesia: A proposed conservation strategy

Setyaningrum

Lestari²,

Krismono³

et al. 2022

Biodiversitas

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Abstract. Setyaningrum N, Lestari W, Krismono, Nuryanto A. 2022. Exploitation of striped snakehead (Channa striata) in Sempor Reservoir, Central Java, Indonesia: A proposed conservation strategy. Biodiversitas 23: 3584-3592. Striped snakehead (Channa striata) has important economic value in freshwater systems, including Sempor Reservoir in Indonesia, where increases in catch sizes have resulted in a declining population. In this study, we determined its population size based on abundance and distribution of length and assessed the rate of exploitation based on estimated growth and mortality rates to determine a conservation strategy in Sempor Reservoir. The study was undertaken from March to October 2020. The method used was a purposive random sampling survey. Fish samples were taken from five stations with different land uses. The estimated growth, mortality, and exploitation rates were analyzed by Pauly's model using FISAT II. Channa striata abundance data were analyzed using a Kruskal-Wallis test. The results showed that the highest abundance of C. striata at the KW station was almost three times higher than at the BK station. The average size of the gonads at first maturity was 277.4 mm in females and 284 mm in males. The estimated growth parameters indicated an asymptotic length (L?) of 409.5 mm. An exploitation rate of 0.74 was classified as overfishing. The proposed conservation strategy is to limit the number of catches by as much as 44% and prohibit the catching of individuals with a length of 230-349 mm. Kedungwringin Station was defined as a reference area with the largest abundance and complete size distribution, namely, the pre-reproduction, reproduction, and post-reproduction stages. Bangkong Station was defined as a spawning ground because there were many fish in the reproductive stage and Sempor River Station was the nursery ground with mostly juvenile fish. These two sites must be protected for sustainable striped snakehead populations in the river and reservoir.

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“…Several molecular marker and methodologies have been proposed to be applied for authentication of species [ 13 ] and the mitochondrial genes (Cytochrome Oxidase I, cytochrome b, control region, 16SrDNA) are the most used molecular markers [ 14 ]. However, while the barcoding methodology based on sequencing of the mitochondrial Cytochrome Oxidase I gene (COI) has become the marker of choice for identifying animal species and fish species in particular [ 15 , 16 ], the other mitochondrial genes and the control region in particular, have been most used for studies of population genetic structure [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ]. Indeed, after almost 20 years since Hebert et al [ 29 ] proposed the COI as a tool for a global bioidentification system for animals [ 15 , 30 , 31 , 32 ], COI barcode is being worldwide used to unveil commercial seafood fraud based on mislabeling [ 2 , 33 , 34 , 35 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

COIBar-RFLP Molecular Strategy Discriminates Species and Unveils Commercial Frauds in Fishery Products

Pappalardo

Giuga

Raffa

et al. 2022

Foods

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The DNA analysis is the best approach to authenticate species in seafood products and to unveil frauds based on species substitution. In this study, a molecular strategy coupling Cytochrome Oxidase I (COI) DNA barcoding with the consolidated methodology of Restriction Fragment Length Polymorphisms (RFLPs), named COIBar-RFLP, was applied for searching pattern of restriction enzyme digestion, useful to discriminate seven different fish species (juveniles of Engraulis encrasicolus and Sardina pilchardus sold in Italy as “bianchetto” and Aphia minuta sold as “rossetto”; icefish Neosalanx tangkahkeii; European perch, Perca fluviatilis and the Nile Perch, Lates niloticus; striped catfish, Pangasianodon hypophthalmus). A total of 30 fresh and frozen samples were processed for DNA barcoding, analyzed against a barcode library of COI sequences retrieved from GenBank, and validated for COIBar–RFLP analysis. Cases of misdescription were detected: 3 samples labeled as “bianchetto” were substituted by N. tangkahkeii (2 samples) and A. minuta (1 sample); 3 samples labeled as “persico reale” (P. fluviatilis) were substituted by L. niloticus and P. hypophthalmus. All species were simultaneously discriminated through the restriction pattern obtained with MspI enzyme. The results highlighted that the COIBar-RFLP could be an effective tool to authenticate fish in seafood products by responding to the emerging interest in molecular identification technologies.

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Genetic diversity and structure of striped snakehead (Channa striata) in the Lower Mekong Basin: Implications for aquaculture and fisheries management

Cited by 18 publications

References 44 publications

Swordfish or Shark Slice? A Rapid Response by COIBar–RFLP

Swordfish or Shark Slice? A Rapid Response by COIBar–RFLP

Exploitation of striped snakehead (Channa striata) in Sempor Reservoir, Central Java, Indonesia: A proposed conservation strategy

COIBar-RFLP Molecular Strategy Discriminates Species and Unveils Commercial Frauds in Fishery Products

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