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Fish Health and Environmental Issues of Emerging Pangas (pangasianodon Hypophthalmus) Farming in Bangladesh

Dr. Md. Ali Reza Faruk
Professor
Department of Aquaculture Bangladesh Agricultural University, Mymemnsingh-2202E-mail:hasin96@yahoo.comMobile-01711456119Bangladesh

Abstract/ Executive Summary:

Pangasius (Pangasianodon hypophthalmus) farming is one of the fastest growing types of aquaculture in the world. It is primarily farmed in Asia. Presently, it is one of the most important species for aquaculture of Bangladesh and its farming is heading towards intensification. The fish is locally know as ‘pangas’ or ‘Thai pangas’. With the rapid expansation and intesification of farming, environmental and disease problems have become a great concern in recent years. In order to address these issues, questionnaire interview and focus group discussion (FGD) were used with selected pangas farmers in Valuka, Muktagasa and Trisal upazilla of Mymensingh district. Data from 40 farmers were analyzed and 5 FGD sessions were conducted. Positive and negative aspects of environmental integrity were compared. Potential environmental impacts of pangas farming were assessed using certain parameters like land use pattern, water quality management and eutrophication, pond waste management, use of chemicals and antibiotics, and escape of fish. It was found that conversion of agricultural land and beels into pangas pond were remarkable which leads to the quick loss of agricultural land that reduces rice production. The unutilized feed portion accumulated in ponds produced huge pond bottom waste and caused water quality deterioration. Eutrophication was found as a common problem along with discharge of highly nutrient rich water in the paddy field. Management of pond bottom waste was found poor though it has some good use in vegetable production in the pond dyke. Indiscriminate use of chemicals and antibiotics caused an adverse impact on the environment and human health. Health and disease problem was found as a big issue in pangas farming. The most prevalent disease problem as reported by the farmers was anal protrusion and reddening around mouth and eyes. Other clinical signs included ventral reddening, superficial cotton wool like lesion and white spot over body surface were also reported but with lower incidence.

Keywords: Environment, Fish health, Pangas, Impact

Location: Mymemnsingh

Start Date: 00-00-2011

End Date: 00-00-2012

Program Area: Animal Health and Management

Commodity: Pangus

Objectives:

To understand environmental issues of emerging pangas farming in Bangladesh.

Methodology:

The study was conducted in different place of Mymensingh District during the period 2011-2012. Data were collected through questionnaire interview and focus group discussion (FGD) with pangas farmers. All together 40 farmers were interviewed and 6 FGD sessions were conducted in Muktagacha, Trishal and Valuka Upazila of Mymensingh district. Positive and negative aspects of environmental integrity were compared. Potential environmental impacts of pangas farming were assessed using certain parameters like land use pattern, water quality management and eutrophication, pond waste management, use of chemicals and antibiotics, and escape of fish.

Source of Information: BAU Research proceedings, Vol.23, 2013, PP.74

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The unutilized feed portion accumulated in pangas ponds produced huge pond bottom waste and caused water quality deterioration. Eutrophication was found as a common problem along with discharge of highly nutrient rich water in the paddy field. Management of pond bottom waste was found quite poor though it has some good use in vegetable production in the pond dyke. Indiscriminate use of chemicals and antibiotics had an adverse impact on the environment and human

Knowledge Management: Report/Proceedings