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Status of Fisheries Resources and Water Quality of Tanguar Haor

S. A. Mamun
Department of Environmental Science and Resource Management,Mawlana Bhashani Science and Technology University, Santosh, Tangail-1902, Bangladesh

S. Roy
Department of Soil Science, University of Chittagong, Chittagong-4331, Bangladesh.

M. S. Rahaman
Department of Environmental Science and Resource Management,Mawlana Bhashani Science and Technology University, Santosh, Tangail-1902, Bangladesh

Jahan
Department of Environmental Science and Resource Management,Mawlana Bhashani Science and Technology University, Santosh, Tangail-1902, Bangladesh

M. S. Islam
Department of Environmental Science and Resource Management,Mawlana Bhashani Science and Technology University, Santosh, Tangail-1902, Bangladesh

Abstract/ Executive Summary:

The study was conducted to observe the status of fisheries resource of Tanguar haor, one of the large wetland in the north eastern part of Bangladesh. For this purpose the whole study was completed in two parts: interviewing with local people and analyzing the water quality. Indiscriminate harvesting of mother fishes, use of agrochemicals, sedimentation on haor basin and habitat destruction were found as major causes of fisheries resources degradation in the study area. Most of the water quality parameters were found good which were within the standard level set by Government of Bangladesh for fisheries. However, EC and TDS were found higher than the recommended level for fish production.

Keywords: Fisheries resource, Tanguar haor, Water quality, Wetland.

Location: Tanguar haor, Sunamganj district

Start Date: 00-05-2012

End Date: 00-06-2012

Program Area: Resource Development and Management

Commodity: Water quality

Objectives:

1. To observe the status of fisheries resource of Tanguar haor, one of the large wetland in the north eastern part of Bangladesh.

Methodology:

The study was carried out through analytical method and social surveys. The social survey was carried out to determine the past and present condition of fisheries resources, identify the causes of degradation of these resources and for better managements with the help of indigenous knowledge. The analytical study was carried out to determine the physical and chemical properties of water and to find out the suitability of this water for fish production by comparing the values with the standard levels of water quality parameters. The study was conducted in Tanguar haor which is located in Sunamganj district lying in north eastern part of Bangladesh. Data was collected from local people who are directly and indirectly dependent on haor for their livelihood by questionnaire survey and laboratory analysis of samples. The water samples were collected from Majampur (S1), Lamagau (S2), Lamagaubeel (S3), Hoirakuna (S4), and Hoirakunain (S5) that lied between 25⁰06".442N, 91⁰03".443E, 25⁰06".494N, 91⁰03".451E, 25⁰07".003N, 91⁰03".709E, 25⁰07".311N, 91⁰03".828E, 25⁰07".351N, 91⁰03".848 E respectively on May to June, 2012. From each sampling site water samples were collected in replicates. So, the total numbers of water samples collected from the area were fifteen. 250 ml of water were collected separately in plastic bottles. Before sampling, the bottles were cleaned and washed with sampling water. Necessary information such as date of collection, location, source of water, time of collection was recorded. pH. Electrical conductivity (EC), total dissolved solid (TDS) and dissolved oxygen (DO) were measurd by digital pH, EC, TDS and DO meters respectively. The temperature of the water was determined by digital thermometer. Data was processed and statistically analyzed by using SPSS statistical package (Evaluation version 14.0) and Microsoft Excel.

Source of Information: J. Environ. Sci. & Natural Resources, 6(1): 103 - 106, 2013; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The water quality of the study area was relatively good except the TDS and EC. All the values represent good quality water for aquatic organisms. From survey it is obvious that the main causes of fisheries declination are over exploitation of resources due to rapid population growth and illegal fishing.

Knowledge Management: Journal