First Record of African Angel Shark, Squatina africana (Chondricthyes: Squatinidae) in Indian Waters, Confirmed by DNA Barcoding

Ambily, M N and Zacharia, P U and Najmudeen, T M and Ambily, L and Sunil, K T S and Radhakrishnan, M and Kishore, T G (2018) First Record of African Angel Shark, Squatina africana (Chondricthyes: Squatinidae) in Indian Waters, Confirmed by DNA Barcoding. Journal of Ichthyology, 58 (3). pp. 312-317.

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Official URL: https://link.springer.com/article/10.1134/S0032945...
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    Abstract

    A single specimen of African angel shark, Squatina africana (Regan, 1908) was caught off Lakshadweep (11°5′47″ N; 72°2′21″ E), India in September 2016. The present study is a new report of the above species from Indian waters. In addition to classical methodologies, DNA barcoding was also adopted for species identification. The 650 bp-long region of mitochondrial Cytochrome Oxidase subunit I was sequenced to obtain the DNA barcode for the species under study. The sequence divergence value within species and between species was calculated using MEGA V.7.0, where Kimura 2 parameter (k2p) model was chosen as a distance model. The average k2p distance separating individuals within species was 1.76% and inter specific divergence was 8–10%. A neighbour joining network was constructed to provide a graphical representation of divergence between the species. Using the maximum identity with Gen Bank database, K2P divergence distance, NJ-network and traditional morphological approach, we could identify the given specimen as a mature male African angel shark.

    Item Type: Article
    Uncontrolled Keywords: first record; Squatinidae cytochrome; c oxidase; Squatina africana; India
    Subjects: Demersal Fisheries > Shark fisheries
    Divisions: CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Demersal Fisheries
    CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Subject Area > CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 06 Jul 2018 05:10
    Last Modified: 06 Jul 2018 05:10
    URI: http://eprints.cmfri.org.in/id/eprint/12974

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