New Record of Pseudocycnus appendiculatus Heller, 1868 Parasites of Yellowfin Tuna Thunnus albacares (Bonnaterre, 1788) in the Andaman Sea, Thailand


  • Watchariya PURIVIROJKUL Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
  • Phithak CHAIDEE Deep Sea Fishery Technology Research and Development Institute, Department of Fisheries, Ministry of Agriculture and Cooperatives, Bangkok 10900
  • Thanitha THAPANAND-CHAIDEE Department of Fishery Biology, Faculty of Fisheries, Kasetsart University, Bangkok 10900


Parasite, Pseudocycnus appendiculatus, yellowfin tuna, Thunnus albacares, Thailand


Four samples of yellowfin tuna, Thunnus albacares (Bonnaterre, 1788), were collected from the Andaman Sea in the Exclusive Economic Zone, Thailand in May 2010. All samples were infested by the parasitic copepod Pseudocycnus appendiculatus at their gill filaments. This report documents a new record of the Andaman Sea, Thailand for P. appendiculatus and also a new host, T. albacares, for this apparent parasite in Thailand is recorded.


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How to Cite

PURIVIROJKUL, W., CHAIDEE, P., & THAPANAND-CHAIDEE, T. (2011). New Record of Pseudocycnus appendiculatus Heller, 1868 Parasites of Yellowfin Tuna Thunnus albacares (Bonnaterre, 1788) in the Andaman Sea, Thailand. Walailak Journal of Science and Technology (WJST), 8(1), 81–85. Retrieved from



Research Article