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257161

Validity of Heteronarce prabhui Talwar, 1981 and Narke impennis (Annandale, 1909) (Pisces: Narkidae) off Visakhapatnam, central-eastern coast of India

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Last updated: 23 Dec 2024

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Abstract

Sleeper rays of family Narkidae are represented in demersal shrimp trawl by-catches of Visakhapatnam (Lat. 17°01' N to 19°22' N; Long. 83°23' E to 85°14' E), in the central-eastern coast of India. A total of 158 specimens belonging to two genera Heteronarce Regan, 1921 (three species) and Narke Kaup, 1826 (two species) were collected from July 2015 to March 2018. These species are often misidentified in the catches due to several overlapping characters. Multivariate analysis including Principal Component Analysis (PCA) has been carried out to identify distinguishing characters to help in differentiating these species. In addition, DNA barcodes were generated for two species in genus Narke, and a phylogenetic tree was constructed with reference sequences. Molecular phylogenetic results were assessed and integrated with sound morphological evidence. Thus, the present paper helps in clarifying taxonomic ambiguities by providing diagnostic characteristics, comparing morphometric data of closely related species, and discussing the validity of Heteronarce prabhui Talwar, 1981 and Narke impennis (Annandale, 1909). In the present study,   H. prabhui represents the first report from the east coast of India; barcode sequences were generated for the first time for N. impennis. Additionally, Cytochrome C Oxidase I (COI) gene sequences were generated for the first time from the Indian waters for  N. dipterygia (Bloch and Schneider, 1801).

DOI

10.21608/ejabf.2022.257161

Keywords

Sleeper rays, diagnostic characters, Multivariate Analysis, DNA barcodes

Authors

First Name

Vallangi

Last Name

Ravali et al.

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Volume

26

Article Issue

4

Related Issue

35549

Issue Date

2022-07-01

Receive Date

2022-08-31

Publish Date

2022-07-01

Page Start

1,337

Page End

1,353

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_257161.html

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https://ejabf.journals.ekb.eg/service?article_code=257161

Order

78

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Original Article

Type Code

103

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Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

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https://ejabf.journals.ekb.eg/

MainTitle

Validity of Heteronarce prabhui Talwar, 1981 and Narke impennis (Annandale, 1909) (Pisces: Narkidae) off Visakhapatnam, central-eastern coast of India

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Article

Created At

22 Jan 2023