Bycatch of non-commercial batoids in the trawl fishery of south India: Status and conservation prerequisites

Bhagyalekshmi, Venugopal; Kumar, Appukuttannair Biju

doi:10.1016/j.rsma.2021.101738

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…As the more high-value and high-demand species of Wedgefishes and Giant Guitarfishes are depleted, there is more incentive to mislabel products to achieve higher prices, further confusing the state of species' populations (Alvarenga et al 2021). Additionally, fishers are increasingly retaining 'trash fish', including species of Critically Endangered Guitarfishes, to increase their profits (Bhagyalekshmi and Kumar 2021). Therefore, implementing improved national management, including better species-specific catch reporting and retention limits may reduce the level of overexploitation and secure a more stable and longer-term future for local fishers.…”

Section: Discussionmentioning

confidence: 99%

Guitarfishes are plucked: Undermanaged in global fisheries despite declining populations and high volume of unreported international trade

et al. 2023

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Section: Discussionmentioning

confidence: 99%

Guitarfishes are plucked: Undermanaged in global fisheries despite declining populations and high volume of unreported international trade

et al. 2023

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“…Tey are known to occur in nearshore waters of the Indo-Pacifc ranging from Pakistan to southern China [18]. Teir IUCN conservation status was recently changed from data defcient to "vulnerable" [19], yet they are common bycatch batoids in mechanized and artisanal fsheries on the southeast coast of India [20] (authors' per. obs.).…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial Genome of “Spotted Numbfish” Narcine timlei (Bloch & Schneider, 1801) and Phylogenetic Relationships among Order Torpediniformes

Kumar

Prakash

2023

Journal of Applied Ichthyology

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In this study, we report, for the first time, mitochondrial genome of Narcine timlei (Bloch & Schneider, 1801) and its phylogenetic relationships within the order Torpediniformes. Narcine timlei is a medium-sized ray that occurs in nearshore waters of the Indo-Pacific and is classified as “‘vulnerable” category on the IUCN Red List. The mitogenome is assembled from short Illumina reads (150 bp paired end reads). It is 17,964 bp long and includes 13 protein-coding genes (PCGs), 22 tRNA genes, and 2 rRNA genes. The gene order, size, and nucleotide composition are largely consistent with mitogenomic characteristics of previously reported other Narcine spp. The slightly larger mitogenome length of N. timlei than other Narcine spp. may be due to the presence of a putative control region of 1,916 bp with three tandem repeats. Phylogenetic reconstruction using concatenated PCGs (n = 13) of 9 Torpediniformes based on maximum likelihood and Bayesian inference analysis revealed identical topologies. The tree showed two main clades: one clade containing members of the family Narcinidae and the second sister clade consisting of the families Narkidae and Torpedinidae. Our result supports the monophyletic nature of Narcinidae based on mtDNA. The information obtained in this study will contribute to a better understanding of the population genetics, phylogenetic analysis, conservation, and evolutionary biology research of N. timlei.

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“…They are known to occur in nearshore waters of the Indo-Paci c ranging from Pakistan to southern China (Last et al, 2016). Their IUCN conservation status was recently changed from data de cient to 'vulnerable' (VanderWright et al, 2021), yet they are common bycatch batoids in mechanized and artisanal sheries on the southeast coast of India (Bhagyalekshmi and Kumar 2021;and authors' per. obs.).…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial genome of ‘spotted numbfish’ Narcine timlei (Bloch & Schneider, 1801) and phylogenetic relationships among order Torpediniformes

Kumar

Prakash

2023

Preprint

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In this study, we report, for the first time, mitochondrial genome of Narcine timlei (Bloch & Schneider, 1801) and its phylogenetic relationships within the order Torpediniformes. Narcine timlei is a medium-sized ray that occurs in nearshore waters of the Indo-Pacific, classified as a ‘vulnerable’ category on the IUCN Red List. The mitogenome is assembled from short Illumina reads (150 bp paired-end reads). It is 17,964 bp long and includes 13 protein-coding genes (PCGs), 22 tRNA genes, and 2 rRNA genes. The gene order, size, and nucleotide composition are largely consistent with mitogenomic characteristics of previously reported other Narcine spp. The slightly larger mitogenome length of N. timlei than other Narcine spp. may be due to the presence of a putative control region of 1,916 bp with three tandem repeats. Phylogenetic reconstruction using concatenated PCGs (n=13) of 9 Torpediniformes based on maximum likelihood and Bayesian inference analysis revealed identical topologies. The tree showed two main clades, one clade containing members of the family Narcinidae, and the second sister clade consisting of the families Narkidae and Torpedinidae. Our result supports the monophyletic nature of Narcinidae based on mtDNA. The information obtained in this study will contribute to a better understanding of the population genetics, phylogenetic analysis, conservation, and evolutionary biology research of N. timlei.

show abstract

Bycatch of non-commercial batoids in the trawl fishery of south India: Status and conservation prerequisites

Cited by 7 publications

References 20 publications

Guitarfishes are plucked: Undermanaged in global fisheries despite declining populations and high volume of unreported international trade

Guitarfishes are plucked: Undermanaged in global fisheries despite declining populations and high volume of unreported international trade

Mitochondrial Genome of “Spotted Numbfish” Narcine timlei (Bloch & Schneider, 1801) and Phylogenetic Relationships among Order Torpediniformes

Mitochondrial genome of ‘spotted numbfish’ Narcine timlei (Bloch & Schneider, 1801) and phylogenetic relationships among order Torpediniformes

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Bycatch of non-commercial batoids in the trawl fishery of south India: Status and conservation prerequisites

Cited by 7 publications

References 20 publications

Guitarfishes are plucked: Undermanaged in global fisheries despite declining populations and high volume of unreported international trade

Guitarfishes are plucked: Undermanaged in global fisheries despite declining populations and high volume of unreported international trade

Mitochondrial Genome of “Spotted Numbfish” Narcine timlei (Bloch & Schneider, 1801) and Phylogenetic Relationships among Order Torpediniformes

Mitochondrial genome of ‘spotted numbfish’ Narcine timlei (Bloch &amp; Schneider, 1801) and phylogenetic relationships among order Torpediniformes

Contact Info

Product

Resources

About

Mitochondrial genome of ‘spotted numbfish’ Narcine timlei (Bloch & Schneider, 1801) and phylogenetic relationships among order Torpediniformes