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Geographical Position and Aquatic Resources of the River Mahananda

K.M. Rahman
Department of Environmental Science, BAU, Mymensingh

M.A. Uddin
Department of Crop Botany, BAU, Mymensingh

M.A. Hasnat
International Rice Research Institute

M. Harun-or-Rashid
Department of Environmental Science, BAU, Mymensingh

M. Shamsunnahar
Department of Economics, City College, Pabna

Abstract/ Executive Summary:

The present study was carried out on the Mahananda river. The Mahananda river is one of the major river of the Northern region of Bangladesh. The fisheries resources of Nawabganj are quite good. A good amount of the fishes are supplied from the Mahananda river to Nawabganj town and it adjacent area. During the study period, a total no. of 111 species of fishes was recorded. From the study area 15 species of fisheries items were recorded. Various types of aquatic vegetation found in the study period, which included algae, floating hydrophytes, submerged hydrophytes, emergent hydrophytes, spreading plants. The major groups of phytoplankton and zooplankton were also recorded. The socio-economic status of the fishermen is very poor. They have lack of hygiene knowledge. They are socially ignore and exploited by power groups. Fishermen community in the study area is mostly poor.

Keywords: Mahananda, Aquatic resources, Socio-economic status.

Location: Mahananda river

Start Date: 00-04-2009

End Date: 00-03-2010

Program Area: Resource Development and Management

Commodity: Plankton

Objectives:

1. The present work mainly deals with a fisheries resource, aquatic vegetation, plankton, socio-economic condition of fishermen. The present research may be helpful to understand about aquatic vegetation, plankton of the river Mahananda.

Methodology:

The data concerning the present study were collected through the survey method from fishermen and different fish traders. Interview schedule were used to collect various information systematic samples were taken during the period from April 2009 to March 2010. A total of 150 interviews were made with the fishermen and people associated with the fishing of the river Mahananda. The specimens thus collected during the investigation were identified primarily in the field. There which appeared difficult to be identified were marked and were brought to the laboratory of Department of Zoology, University of Rajshahi. The various information of the river Mahananda and data on the climate were collected from Water Development Board and metrological Department, Rajshahi respectively. Frequently water samples were collected for study of plankton and aquatic plants were also collected. The collected plankton was preserved in 4% formalin and was examined in the laboratory under binocular microscope (×80) as soon as possible. The different types of aquatic plants were collected from both sides of the river Mahananda at Nawabganj area and taken to the laboratory for identification. The study of socio-economic status of the fishermen of the study 45 fishermen were taken under intervene. Fishermen have been classified by research into three types as- (i) professional (full time), (ii) seasonal (part time) and (iii) subsistence fishermen.

Source of Information: J. Agrofor. Environ. 5 (2): 109-112, 2011 ; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Phytoplankton organisms, collected from the mahananda river at Nawabganj area, belonged to major groups of Myxophyceae, Chlorophyceae, Bacillariophyceae, Dinophyceae, Xanthophyceae, Euglenophyceae and Desmidaceae. The record zooplankton organisms were Rotifera, Cladocerans, Copepods, insects, Larvae of insects, protozoans and other small animals. Hygiene problem is increasing day by day for the poor fishermen and who live for away from the health center. The common diseases of working fishermen are bronchitis, fever, fungal and bacterial disease and ring worm. Besides these, the poor fishermen are always susceptible to and exploited by power groups. They are ignored socially and economically and the possessors of broken health.

Knowledge Management: Journal