Morphology and Molecular Biology of Benthic Java Sea Shark Ray Rhina ancylostoma Bloch and Scheider 1801 (Elasmobranchia: Rhinidae)

Main Article Content

Agus Hartoko
Delianis Pringgenies
Amelia Cahya Anggelina
Takashi Matsuishi


Aims: Morphology and molecular biology of a rare shark-rays Rhina ancylostoma caught from Java sea.Indonesia.

Study Design: Morphology, morphometry and DNA analysis of the fish specimen.

Place and Duration of Study: Sample wascollected from fish auction hall at north Java, specimen now stored in Lab of Ichtiology. Department of Fisheries. Faculty of Fisheries and Marine Science. Diponegoro University, between March to December 2019.

Methodology: DNA extraction, amplification and molecular identification of fish sample.Yield of DNA supernatant transferred in an eppendeorf tube and stored in 4°C for further process. PCR amplification. Part of Mithocondrial DNA COI (Cytochrome Oxidase subunit-I) gen was amplified using Polymerase Chain Reaction (PCR) method. Then matched up with GenBank database at NCBI using Basic Local Alignment Search Tool (BLAST) analysis. Philogenetic tree was set using Neighbor-Joining method, Kimura-2 parameter model and 1,000 bootstrap replication. Some sequence from NCBI GenBank were inputted into philogenetic tree as comparison.

Results: Rhina ancylostoma as one of demersal shark rays catch from tropical shallow Java sea. Range of Total Length 73 – 200 cm and dominant Total Length catch 125 cm. Morphologyis characterised with three lines of spine thorn on the head, morphometry characteriswide of head to TL ratio 0.77. DNA analysis had confirmed the specimen of AH2 as Rhina ancylostoma based on homological match up of sequence of Gen Bank database with reference accesion number KU721837.1 with length sequence of 665 bpand identical similarity of 99.84% for specimen Accession number LC 505461.

Conclusion: Rhina ancylostoma as one of demersal shark rays catch from Java sea. Range Total Length (TL) of catch 73 – 200 cm and dominant TL catch range 101 – 125 cm. Morphologically character of wide head ratio with three lines of spine thorn on the head. Nearest genetic distance of 0.02 to Rhincobatushorkelii and 0.017 to R. australiae. Longest genetic distance of 0.243 to Potamotrygon motoro.

Morphology, molecular biology, shark-ray, Java-sea, Rhinidae

Article Details

How to Cite
Hartoko, A., Pringgenies, D., Anggelina, A. C., & Matsuishi, T. (2020). Morphology and Molecular Biology of Benthic Java Sea Shark Ray Rhina ancylostoma Bloch and Scheider 1801 (Elasmobranchia: Rhinidae). Annual Research & Review in Biology, 35(4), 19-31.
Original Research Article


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