ISSN (Online): 2456-6268
Journal of Fisheries and Life Sciences

Journal of Fisheries and Life Sciences

2018, Vol. 3 Issue 2, Part DECEMBER
Parasitic infestation in Channa punctatus at Sylhet in Bangladesh
Author(s): Haimonti Das, M. M. Mahbub Alam, Sayed Mashequl Bari, Md. Abdullah-Al-Mamun, Mollika Das, Niloy Kumar Chowdhury, Md. Shourove Islam
Abstract: The parasitic infection was studied on Channa punctatus, an indigenous snakehead fish collected from Lalabazar and Ratargul swamp forest of Sylhet in April and December, 2016. A total of 100 individuals of C. punctatus were examined. In total 72 individuals were observed to be infested with 87 parasites of 5 groups namely Digenea, Nematode, Acanthocephala, Crustacea and Cestode. Seven different species of parasites were identified from the studied hosts such as i)Allocreadium handiai, ii) Argulus bengalensis, iii) Camallanus intestinalus, iv) Euclinostomum multicaecum, v) Procamallanus mysti, vi) Pallisentis ophiocephali and vii) Sanga ophiocephalina of which six were endoparasites and one was ectoparasite. Prevalence was different in different months. The highest prevalence (76.00%) was observed in April from the hosts of Ratargul swamp forest and the lowest (56.00%) was observed in December from the hosts of Lalabazar fish market in Sylhet. Changes in the nature of growth and loss of weight as a result of parasitic infestation were noticed. Accordingly length, weight and condition factors were found greatly affected. Loss of total length was 1.75% and the highest loss of weight (18.34%) was found in longer fish. The highest condition factor (0.59) was found in uninfested fish and the lowest (0.45) in the infested fish. The information will be useful for the management and determination of harvesting time of C. punctatus.
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