Species diversity of anchovies (Teleostei: Engraulidae) along the northwest coast of Peninsular Malaysia

Lavoué, Sébastien; Hata, Harutaka; Halim, Siti Amalia Aisyah Abdul; Jamaluddin, Jamsari Amirul Firdaus; Ridzwan, Mohamad Firdaus bin Mohamad; Ratmuangkhwang, Sahat; Nor, Siti Azizah Mohd; Akib, Noor Adelyna Mohammed; Hashim, Zarul Hazrin

doi:10.1016/j.rsma.2022.102599

Cited by 4 publications

(2 citation statements)

References 27 publications

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“…Thrissina mystax (not of Bloch and Schneider): Lavoué et al, 2022: Tables 1–4, figure S1 (northwestern coast of Peninsular Malaysia).…”

Section: Resultsmentioning

confidence: 99%

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Resurrection and redescriptions of nominal species previously regarded as synonyms of Thrissina mystax (Bloch and Schneider, 1801) (Teleostei: Clupeiformes: Engraulidae)

Hata,

Lavoué

2024

Journal of Fish Biology

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Examination of the original descriptions and available type specimens of nominal species previously regarded as synonyms of Thrissina mystax (Bloch and Schneider, 1801), and many non‐type specimens representing an extensive geographic range, confirmed the validities of T. mystax, Thrissina porava (Bleeker, 1849), and Thrissina valenciennesi (Bleeker, 1866). Additionally, Engraulis poorawah Bleeker, 1872, a nominal species previously regarded as a junior synonym of T. mystax, is recognized as a junior synonym of Thrissina malabarica (Bloch, 1795). Diagnoses and detailed color descriptions are given for all of the valid species, in addition to clarification of their taxonomic histories, and neotype designation for T. porava. The phylogenetic relationships among 15 species of Thrissina (including T. porava and T. valenciennesi but not T. mystax) were reconstructed from the mitochondrial cytochrome oxidase I (COI) gene. T. porava and T. valenciennesi were not recovered as a monophyletic group, instead being divergent from each other and the other species of Thrissina by 12.4% and >11.7% mean uncorrected distances, respectively, confirming their reciprocal validity.

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“…Thrissina mystax (not of Bloch and Schneider): Lavoué et al, 2022: Tables 1–4, figure S1 (northwestern coast of Peninsular Malaysia).…”

Section: Resultsmentioning

confidence: 99%

“…(Sungai Merbok, Kuala Kedah, Malaysia).Thrissina mystax (not of Bloch and Schneider):Lavoué et al, 2022: Tables1-4, figure S1 (northwestern coast of Peninsular Malaysia).3.2.1 | Specimens examinedNeotype. RMNH.PISC.…”

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confidence: 99%

Resurrection and redescriptions of nominal species previously regarded as synonyms of Thrissina mystax (Bloch and Schneider, 1801) (Teleostei: Clupeiformes: Engraulidae)

Hata,

Lavoué

2024

Journal of Fish Biology

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Eyeing DNA barcoding for species identification of fish larvae

Chan,

Chang,

Tan

et al. 2024

Journal of Fish Biology

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Identification of fish larvae based on morphology is typically limited to higher taxonomic ranks (e.g., family or order), as larvae possess few morphological diagnostic characters for precise discrimination to species. When many samples are presented at any one time, the use of morphology to identify such specimens can be laborious and time‐consuming. Using a reverse workflow for specimen sorting and identification leveraging high‐throughput DNA sequencing, thousands of fish larvae can be DNA barcoded and sorted into molecular operational taxonomic units (mOTUs) in a single sequencing run with the nanopore sequencing technology (e.g., MinION). This process reduces the time and financial costs of morphology‐based sorting and instead deploys experienced taxonomists for species taxonomic work where they are needed most. In this study, a total of 3022 fish larval specimens from plankton tows across four sites in Singapore were collected and sorted based on this workflow. Eye tissue from individual samples was used for DNA extraction and sequencing of cytochrome c oxidase subunit I. We generated a total of 2746 barcodes after quality filtering (90.9% barcoding success), identified 2067 DNA barcodes (75.3% identification success), and delimited 256 mOTUs (146 genera, 52 families). Our analyses identified specific challenges to species assignment, such as the potential misidentification of publicly available sequences used as reference barcodes. We highlighted how the conservative application and comparison of a local sequence database can help resolve identification conflicts. Overall, this proposed approach enables and expedites taxonomic identification of fish larvae, contributing to the enhancement of reference barcode databases and potentially better understanding of fish connectivity.

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Mapping Ecosystem Services’ Assessments: Current Practice and Future Prospects in Malaysia

Wan Ab Rashid,

Mohamad

2024

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Malaysia is one of the countries rich with biodiversity. Currently, the ecosystem services (ES) are found to be degraded in Malaysia and are expected to decline further over the coming century due to the changing political scenarios. The present study focuses on ES assessments in Malaysia, we systematically review literature to summarise achievements to date, identify key research gaps, and reveal pathways for policy uptake. Based on the findings, the current practices and developments in the mapping of ES assessment was identified. The results of research that incorporated practitioner engagement through interviews to learn about their perspectives on valuers' current practices related ecosystem service valuation were included as part of the research analysis. Analysis for this article also took into account conclusions from further semi-structured interviews with valuers working in the field of valuation as well as the most recent developments in application. Thus, we suggest that further research could focus on monetary valuation method. Economic valuation results will provide useful information about changes to welfare. Benefits transfer can be a practical, swift and cheap way to get an estimate of the value of ecosystems service, particularly when the aim is to assess a large number of diverse ecosystems.

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Species diversity of anchovies (Teleostei: Engraulidae) along the northwest coast of Peninsular Malaysia

Cited by 4 publications

References 27 publications

Resurrection and redescriptions of nominal species previously regarded as synonyms of Thrissina mystax (Bloch and Schneider, 1801) (Teleostei: Clupeiformes: Engraulidae)

Resurrection and redescriptions of nominal species previously regarded as synonyms of Thrissina mystax (Bloch and Schneider, 1801) (Teleostei: Clupeiformes: Engraulidae)

Eyeing DNA barcoding for species identification of fish larvae

Mapping Ecosystem Services’ Assessments: Current Practice and Future Prospects in Malaysia

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