Journal of Parasitic Diseases

, Volume 43, Issue 4, pp 544–548 | Cite as

Further report of Bariaka alopiae Cressey, 1966 (Copepoda, Siphonostomatoida) from the Indian Ocean with new host and geographic record

  • M. NashadEmail author
  • Sijo P. Varghese
  • Swapnil S. Shirke
  • A. A. Mohamed Hatha
  • L. Ramalingam
Original Article


A copepod parasite, Bariaka alopiae Wilson, 1932 (Eudactylinidae) infested on thresher sharks caught from the Indian Exclusive Economic Zone off Andaman and Nicobar archipelago, eastern Indian Ocean is further reported. Adult females of B. alopiae were collected from the gill filaments of two host species, Alopias pelagicus Nakamura and A. superciliosus Lowe. The species B. alopiae can be easily distinguished from other species within the genus by the following characteristic features: cylindrical body devoid of spines, eighteen segmented antennules and four segmented abdomen. In the Indian Ocean, this parasite was known only from its original description 51 years ago, based on materials from western Indian Ocean off Madagascar. Further the present study reports, A. pelagicus as a new host for this parasite.


Ectoparasites Bariaka alopiae Alopias pelagicus Alopias superciliosus Andaman and Nicobar waters 



We thank the skipper and crew of the MFV Blue Marlin, longline survey vessel of the Fishery Survey of India for assisting in the specimen collection. We are indebted to the Director General, Fishery Survey of India for all facilities including specimen samples, laboratory and library facilities etc. received from the Institute for undertaking this study.

Author’s contribution

MN: Data collection, assist in the drafting of manuscript. SPV: Data collection, lead in the writing of manuscript, SSS: Data collection, AAMH: Work design and provided critical feedback, LR: Work design and supervised the project.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest (financial, academic, commercial, political or personal). No funding has been received for the conduct of this study and preparation of this manuscript.

Informed consent

This article does not contain any identifying information about any individual.

Ethical approval

The specimens not under the listed category of experimental animals which need ethics approval.


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Copyright information

© Indian Society for Parasitology 2019

Authors and Affiliations

  1. 1.Fishery Survey of IndiaPort BlairIndia
  2. 2.Department of Marine Biology, Microbiology and Biochemistry, School of Marine SciencesCochin University of Science and TechnologyKochiIndia
  3. 3.Fishery Survey of IndiaMumbaiIndia

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