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A Checklist on the Protozoan Parasites of Freshwater Fishes of Bangladesh

Fatima Nahar Kabita
Department of Zoology, University of Dhaka, Dhaka-1000, Bangladesh

Md. Aminul Islam Bhuiyan
Department of Zoology, University of Dhaka, Dhaka-1000, Bangladesh

Zannatun Nahar Jhinu
Department of Zoology, University of Dhaka, Dhaka-1000, Bangladesh

Abstract/ Executive Summary:

The current work has been proposed to accumulate baseline information regarding prevalence, diversity and distribution of the protozoan parasites found in the freshwater fishes of Bangladesh from its inception to 2019. This is an attempt to compile a baseline data on protozoan parasites of freshwater fishes in Bangladesh. A total of thirty four articles were reviewed whereas sixteen articles reported systematic, taxonomic and morphometric analysis of protozoan parasites, five articles described seasonal parasitic infestation in carp fishes including protozoan parasites, seven articles reported overall parasitic infestation along with protozoan infection, three articles described protozoan infection in consort with the histo-pathological analysis, one article revealed the occurrence of one protozoan parasite named Trypanosoma sp. and one study described monthly fluctuation of overall parasitic infection together with protozoan infestation. A number of thirty four freshwater fish species under nine orders in Bangladesh were retrieved on the mentioned articles and found 48 species of protozoan parasites under 19 genera. Noticeably, parasites under genus Trichodina was frequently found in the freshwater fish species. Most of the parasites were found from the gills (micro-habited) of the host fish. To sum up, from this compilation a primary database of protozoan parasites of freshwater fish species might be expected to establish that will be supportive for further extensive study.

Keywords: Protozoan parasite, Fish disease, Freshwater fish

Location: Department of Zoology and Science library, University of Dhaka

Start Date: 00-00-2019

End Date: 00-00-2019

Program Area: Resource Development and Management

Commodity: Plankton

Objectives:

To conducted on the distribution, intensity, histopathology, taxonomy and systematics of this group (Protozoan) of parasite.

Methodology:

The present work has been completed based on articles available for protozoan parasites of freshwater fishes in Bangladesh. An extensive search was made on literature published from the inception to the present (2020) on protozoan parasites of freshwater fishes in Bangladesh. Pertinent articles were searched using Web of Science, Research gate and Fish base database by means of a combination of Key words such as- Protozoa, Parasite, Fish Disease, Freshwater and Bangladesh. Some Analogue articles were searched and collected from Seminar library of the Department of Zoology and Science library, University of Dhaka. Inclusion criteria: Full text English language articles, Abstracts, Checklists reported on any degree of protozoan infestation of freshwater fishes in Bangladesh. Exclusion criteria: Letter to editor, Project reports and any articles written in any other language except English were excluded from this review. And irretrievable articles were not included.

Source of Information: Bangladesh J. Zool. 48(1): 21-35, 2020

Article Link (Online Journal): DOI: https://doi.org/10.3329/bjz.v48i1.47873

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The articles consulted for the present checklist are mostly on the taxonomy of the parasites. Altogether forty-eight (48) species of parasites have been recorded which seemed to be insufficient and should be subjected to increase for further extensive study. Moreover, most of the host species are still to be studied for protozoan parasites. This compilation of work will aid us to determine the area of work to be selected and explored to conduct any prospective study.

Knowledge Management: Journal