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Diversity of Fish Fauna in Some Selected Area of a Haor System in Khaliajury Thana of Netrakona District Bangladesh

Dulon Roy
Department of Zoology, Jagannath University, Dhaka1100, Bangladesh

Abdullah Al Masud
Department of Zoology, Jagannath University, Dhaka1100, Bangladesh.

Anirban Sarkar
Department of Zoology, Jagannath University, Dhaka1100, Bangladesh.

Gulshan Ara Latifa
Department of Zoology, University of Dhaka, Dhaka1000, Bangladesh.

Abstract/ Executive Summary:

The present study was conducted in some selected areas of haor for a period of 6 months from July 2014 to December 2014. The study was undertaken to evaluate the fish diversity, its status, identification, relative abundance and habitat preference. During the study period, 103 fish species with their taxonomic position were recorded under 29 families of 11 orders. Among the recorded fish species, majority of fishes (31 species) were under the family cyprinidae. The relative abundance were categorized as very common (vc), common (c), fairly common (fc), occasional (o), few (f) and rare (r). In case of habitat preferences, the fishes were classified as flood plain (fp), migratory (m) and riverine (r). The haor is an important source of fishes and provide a habitat for a large number of fresh water species of fishes. The number of species, genera and family of the fishes that recorded from different location of the haor during the study period is still rich in fresh water fish fauna.

Keywords: Diversity, Fishes, Relative Abundance, Haor, Habitat.

Location: Khaliajury Thana of Netrakona District Bangladesh

Start Date: 00-07-2014

End Date: 00-12-2014

Program Area: Conservation and Biodiversity

Commodity: Fish species, Haor

Objectives:

In the present study, the fish fauna, its relative abundance and habitat preference were an attempt to make a fish faunal list of available species of Khaliajury thana, Netrakona district, Bangladesh.

Methodology:

The study was conducted in some selected areas of Haor during the period from July 2014 to December 2014. Sampling was done single at regular interval in each week. The fish species were sampled at random through netting in different locations. Identification of the fish species was based on Siddiqui et al. (2007), Shafi and Quddus (2001), Rahman (2005). And IUCN Bangladesh (2000). The relative abundance of fishes have categorized based on the number of fishes recorded from seven beels. In case of relative abundances, the terms commonly used were: Very common (VC) - sighted each time during sampling, usually a number of individuals; Common (C) - sighted each time in sampling, but less in number than the very common; Fairly common (FC) - sighted in most sampling, but relatively less in number than common; Occasional (O) - occasionally seen; Few (F) - sighted in few numbers; Rare (R) - rarely sighted each time in sampling. The categorization of the threatened species of fishes was made on the guidelines provided by IUCN Bangladesh (IUCN Bangladesh 2000) [9]. In habitat preferences, the term used are: FP= Flood plain, M= Migratory, and R= River.

Source of Information: International Journal of Fisheries and Aquatic Studies 2016; 4(2): 427-432

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Bangladesh haors are rich in biodiversity and have great ecological, economic and social values in ensuring livelihood security of millions of poor people particularly for fisher community in Bangladesh. Now days the haors are under threat and gradually degrading due to several anthropogenic and natural causes. The poor sanitation system around the Haor also causes the pollution of water. The application of insecticides, pesticides and huge inorganic fertilizer in the paddy fields during dry season causes the water pollution and fish disease in the Haor area. By observing the number of species, genera and families of fishes reported herein seems that Khaliajury region so called Vati anchal is still rich in freshwater fish fauna though many indigenous species are becoming threatened day by day.

Knowledge Management: Journal