Agarna malayi Tiwari 1952 (Crustacea: Isopoda: Cymothoidae) Parasitising the Marine Fish, Tenualosa toli (Clupeidae) from India: Re-description/description of Parasite Life Cycle and Patterns of Occurrence

作者：Aneesh Panakkool Thamban; Sudha Kappalli^*; Helna Ameri Kottarathil; Anilkumar Gopinathan

来源：Zoological Studies, 2018, 57: 25.

DOI：10.6620/ZS.2018.57-25

• Parasitic cymothoid
• Lifecycle
• Clupeid fish
• Host-parasite interaction
• India

This paper re-describes the female stage of Agarna malayi Tiwari 1952, a protandrically hermaphroditic parasitic cymothoid, and describes the remaining life cycle stages for the first time. The re-description (female phase) of A. malayi was made based on the type specimens deposited by Tiwari (1952) in the National Zoological Collections of the Zoological Survey of India (NZC-ZSI) and data obtained from several live specimens collected from Ayyikkara Fish Landing Centre (11 degrees 51'N, 75 degrees 22'E, of Malabar Coast, India) and Marina Beach (13.0500 degrees N, 80.2824 degrees E, Bay of Bengal, India). General morphology, mouthparts and appendages of the species' life cycle stages such as larvae, juveniles, male and transitional stages are also reported for the first time. We closely observed 80 marine fish species belonging to 35 different families to identify the potential host of A. malayi, and only recovered the parasite from one fish, Tenualosa toli, signifying A. malayi's oligoxenous host specificity; the prevalence and intensity of parasitisation is 17.3 and 1.86%, respectively. The present paper also discusses sequential life cycle stages of the species.

• 出版日期2018-6-7