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Fish Biodiversity at Sibsa River in South-western Bangladesh: Status and Conservation Requirements

Md. Kamrul Islam
Department of Fisheries, Ministry of Fisheries and Livestock, Bangladesh.

Kazi Ahsan Habib
Department of Fisheries, Sher-e- Bangla Agricultural University, Dhaka-1207, Bangladesh.

Md. Emranul Ahsan
Department of Fisheries Management, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur-1706, Bangladesh.

Mir Mohammad Ali
Department of Aquaculture, Faculty of Fisheries, Patuakhali Science and Technology University, Patuakhali-8602, Bangladesh.

Siddhwartha Kumar Basak
Department of Aquaculture, Bangladesh Agricultural University, Mymensingh, Bangladesh.

Abstract/ Executive Summary:

Sibsa River is a significant and familiar river in south-west Bangladesh in terms of fish production and source of income for many fishermen living around it. The present study was planned to assess the current fish diversity status of this river. Fish samples were collected fortnightly from six sampling stations of the Sibsa River at Khulna district in South-Western Bangladesh during May 2011 to April 2012. A total of 61 species of fish under 10 orders and 27 families were recorded. Perciformes were most leading order constituting 42.62% of the total fish population followed by Siluriformes (11.48%), Clupeiformes (9.84%), Pleuronectiformes (3.29%), Synbranchiformes (3.29%), Osteoglossiformes (1.64%), Beloniformes (1.64%), Mugiliformes (4.92%), Cypriniformes (16.39%) and Tetraodontiformes (4.92%). Fishes in this river are seriously affected by the various kinds of human development interventions and activities. Under this circumstance, a better understanding of the diversity and distribution of fishes in the Sibsa River is urgently needed.

Keywords: Fish Biodiversity, Present Status, Management, Sibsa River and Bangladesh.

Location: Sibsa River, Khulna district

Start Date: 00-05-2011

End Date: 00-04-2012

Program Area: Conservation and Biodiversity

Commodity: Fish

Objectives:

To update the species check-list and to report new record of species inhabiting the Sibsa River

Methodology:

The Sibsa River is situated in the South- Western part of Bangladesh as between 21.38' and 23.1 north latitude and 88.58 east longitude and is 12 ft. above mean sea level. The fish samples were periodically collected from the Sibsa River in Khulna district at South-Western Bangladesh during May 2011 to April 2012. Samplings were conducted fortnightly from commercial catches landed at different fish landing centers. Data were analyzed in relation to composition of species caught in every month (May 2011 to April 2012). Fish were usually caught by means of the traditional fishing gears such as seine net (Sutar jal), cast net (jhaki jal), square lift net (tar jal), conical trap (dughair), fish angles (Borsi), Monofilament fixed gill net (Current jal) and Fish barrier (Thaga). The fresh samples were immediately chilled in ice on site and fixed with 10% buffered formalin upon arrival at the laboratory. Furthermore, necessary data and information for threats to biodiversity and its conservation were collected through the survey on the fishers, fish farmers, fish traders, teachers, students, researchers, Government and NGO personnel and experienced persons related to fisheries sectors and available literatures.

Source of Information: International Journal of Fisheries and Aquatic Studies 2016; 4(1): 24-28, ISSN: 2347-5129

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

A total of 61 species of fish under 10 orders and 27 families were recorded. Perciformes were most leading order constituting 42.62% of the total fish population followed by Siluriformes (11.48%), Clupeiformes (9.84%), Pleuronectiformes (3.29%), Synbranchiformes (3.29%), Osteoglossiformes (1.64%), Beloniformes (1.64%), Mugiliformes (4.92%), Cypriniformes (16.39%) and Tetraodontiformes (4.92%). Fishes in this river are seriously affected by the various kinds of human development interventions and activities. Under this circumstance, a better understanding of the diversity and distribution of fishes in the Sibsa River is urgently needed.

Knowledge Management: Journal