Journal of Parasitic Diseases

, Volume 42, Issue 3, pp 458–461 | Cite as

First record of the Gloiopotes huttoni (Thomson, 1890) (Copepoda: Caligidae) parasitic on the swordfish Xiphias gladius along the southeast coast of India

  • D. Karthick Rajan
  • S. RavichandranEmail author
  • B. A. Venmathi MaranEmail author
Short Communication


Parasitic copepods infect a large number of fishes. In particular, the family Caligidae (Crustacea) comprises more than 450 species worldwide, some of which are harmful to cultured and wild fishes. Recently, we found a parasitic copepod on the host swordfish Xiphias gladius (Xiphidae) in the coastal waters of Parangipettai, southeast coast of India. It was identified as Gloiopotes huttoni by its morphological features, and it belongs to the family Caligidae (order Siphonostomatoida). The swordfish was highly infected with about 72 caligids on a single host. Both male and female forms of G. huttoni were colonized on the beak of the swordfish and distributed mostly along the upper and lower jaws of the host, with 42 and 30 copepod parasites, respectively. Most of the copepods were ovigerous, and more females than males were recorded. It is the first record of the occurrence of G. huttoni in India.


Gloiopotes Swordfish Copepods Caligidae Beak 



The authors are grateful to the Department of Science and Technology (SB/SO/AS/063/2013), Govt. of India, New Delhi for providing financial assistance to carry out this research work.

Author’s contribution

D Karthick Rajan carried out the sample collection, processing and prepared the manuscript. S Ravichandran identified the species and revised the manuscript. BA Venmathi Maran contributed to confirmation of the species identity and editing the manuscript.

Compliance with ethical standards

Ethical statement

Not applicable to this study. No experimental studies were carried out on the host fish X. gladius. The only action was to collect the copepod parasites G. huttoni from the host.

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Indian Society for Parasitology 2018

Authors and Affiliations

  1. 1.Faculty of Marine Sciences, Centre of Advanced Study in Marine BiologyAnnamalai UniversityParangipettaiIndia
  2. 2.Borneo Marine Research InstituteUniversity Malaysia SabahKota KinabaluMalaysia

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