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Monogenoidea on exotic Indian freshwater fishes. 2. Range expansion of Thaparocleidus caecus and T. siamensis (Dactylogyridae) by introduction of striped catfish Pangasianodon hypophthalmus (Pangasiidae) Cover

Monogenoidea on exotic Indian freshwater fishes. 2. Range expansion of Thaparocleidus caecus and T. siamensis (Dactylogyridae) by introduction of striped catfish Pangasianodon hypophthalmus (Pangasiidae)

By: A. Tripathi,  S. Rajvanshi and  N. Agrawal  
Open Access
|Apr 2014

Abstract

Thaparocleidus caecus and Thaparocleidus siamensis are parasitic monogeneans found on the gills of striped catfish Pangasianodon hypophthalmus (Pangasiidae), a native species of Southeast Asia. We report T. caecus and T. siamensis, for the first time in India, from the gills of aquarium-kept P. hypophthalmus (prevalence 40 % and 80 % respectively). We also report T. siamensis from the gills of pond-cultured P. hypophthalmus (prevalence 100 %); no specimen of T. caecus was observed on pondcultured P. hypophthalmus (prevalence 0 %). Morphometric data of the studied parasites did not differ significantly from previous descriptions of the two species recovered in other geographic locations. Similarly, no consequential variation was found when 28S rDNA of T. siamensis from the present study was compared with that of T. siamensis from Malaysia available on GenBank. The present investigation adds to growing cases of freshwater monogeneans that have been concomitantly introduced worldwide as a result of aquarium and aquaculture trade.

DOI: https://doi.org/10.2478/s11687-014-0204-0 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 23 - 30
Published on: Apr 4, 2014
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2014 A. Tripathi, S. Rajvanshi, N. Agrawal, published by Slovak Academy of Sciences, Institute of Parasitology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.