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Comparative Performances of Exotic and Indigenous Fish Species with Commercial Culture Systems of Mymensingh District in Bangladesh

S Salam
Department of Aquaculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

KMS Rana
Department of Aquaculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

MA Salam
Department of Aquaculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted to assess the relative performances of indigenous and exotic fish species under commercial culture system at Muktagacha and Trishal upazila in Mymensingh district. Six exotic fish species namely Thai koi (Anabas testudineus), Thai pangus (Pangusius hypophthalmus), Silver carp (Hypophthalmichthys molitrix), Vietnam koi (Anabas testudineus), Big head carp (Aristichthys nobilis) and Tilapia (Oreochromis niloticus) and nine indigenous fish species namely Rui (Labeo rohita), Shing (Heteropneustes fossilis), Sar punti (Puntius sarana), Gulsha (Mystus bleekeri), Koi (Anabas testudineus), Mrigal (Cirrhinus cirrhosus), Kalibaush (Labeo calbasu), Catla (Catla catla) and Magur (Clarias batrachus) were selected in Muktagacha while exotic Big head carp and indigenous Gulsha, Koi and Magur were lacking for observation in Trishal upazila. Results revealed that the production of exotic Thai pangus was comparatively higher in Muktagacha (5810.81 kg/acre) than Trishal (4521.74 kg/acre) upazila. In contrast, silver carp and tilapia production were 3063.04 kg/acre and 1008.26 kg/acre in Trishal, respectively which were higher than Muktagacha. Average selling price of tilapia, Vietnam koi and silver carp was also comparatively higher in Muktagacha than Trishal upazila. Similar observation was also obtained in respect of indigenous fish species. On the other hand, average selling price of shing was found highest (BDT. 333.33 per kg) in Muktagacha than Trishal while other fish species were sold at similar price. Gross income was also significantly higher with the exotic fishes in Muktagacha accounted for BDT. 858,716/acre/cycle while the highest gross income obtained with the indigenous fishes was in Trishal upazila, valued BDT. 121,5987/acre/cycle. It can be concluded that, both indigenous and exotic fish farming has spread in the area because of easy to adopt culture system, availability of fry, feed, good profit and high demand in the market. Some limitations of the ongoing practices have been identified that need to be addressed properly by the concerned authority.

Keywords: Exotic, Indigenous, Fish, Production, Economic potentiality

Location: Muktagacha and Trishal sadar upazila in Mymensingh District of Bangladesh

Start Date: 00-07-2015

End Date: 00-12-2015

Program Area: Animal Health and Management

Non-commodity: Performance

Objectives:

To address the production and economic variability of both exotic and indigenous fish species at Muktagacha and Trishal upazila in Mymensingh.

Methodology:

Selection of the study area: The study was conducted to determine the comparative production and economic performances of indigenous and exotic fish species in commercial culture systems at both Muktagacha and Trishal sadar upazila in Mymensingh District of Bangladesh during July 2015 to December 2015. This area was selected considering the following factors: a) Large number of pond farms in this area. b) Fish culture is a rising trend in this area. c) There is an easy communication facility. d)The study area was not far away and thus it was less expensive as well as easier for data collection for the researcher. e) Social norms and common believes were well known by the researcher; and f) No research was conducted in this respect. Collection of data: Data were purposively collected from 30 fish farm owners/managers along the selected area. It was not possible to include all the farms under the study because of limitation of time and resources. Fish farmers of the selected area constitute population of this study. Samples were purposively selected in order to meet the objectives of the study. Thus, a total of 30 fishermen were purposively selected for face to face questionnaire interviews for collecting the primary data. During the study, six exotic fish species namely Thai koi, Thai pangus, Silver carp, Vietnam koi, Big head carp and Tilapia and nine indigenous fish species namely Rui, Shing, Sar punti, Gulsha, Koi, Mrigal, Kalibaush, Catla and Magur were selected for observation and data collection from the selected fish farmers. However, exotic Big head carp and indigenous Gulsha, Koi and Magur were lacking for observation in Trishal upazila. Importantly, the respondent farmers are those who have started fish culture within 2009 to 2013. Data were collected by direct interviews. With a set of interview schedule designed for this study, each respondent was given of brief information about the nature and purpose of the study during the interview. Besides, the researchers asked the questions in a very systematic manner with explanations wherever it was felt necessary and the information were recorded. Questionnaire was prepared consulting with the supervisor as well as reviewing draft questionnaire was used for Much attention was given to gather all the information from the farmers, which was not designed to be asked but was important and informative towards the objectives. Finally a well-defined complete questionnaire was developed through the experiences gained from the pilot survey. Data were collected on average weight, production and average sale of both exotic and indigenous fish species along with the socio-economic status of the farmers. Problems encountered during data collection: During data collection, the researcher faced the following methodological problems: 1. Most of the farmers in the community had no concept about research work and it was, therefore very difficult to explain the purpose of the study. 2. Most of the farmers hesitated to give the answer of the questions since they thought that the investigator might use the information against their interest. 3. Usually most of the respondents do not keep records of their activities. Hence it was very difficult to collect actual data and researcher had to rely on memory of the respondents. 4.In response to the question about output some farmers provides dubious figure. The reason behind such answers perhaps might have been the fear of imposition of a levy or taxes by government. 5. On some occasions farmers were not available at home and in such cases the researcher had to give extra effort to collect information from them. Data processing and analysis: The collected data were scrutinized and summarized carefully before the tabulation. Some data were collected into local units and those were converted into international units. Then the data were tabulated into a preliminary data sheet of a Microsoft excel. After data entry, the data were analyzed with Microsoft Excel software and DMRT (Duncans’ Multiple Range Test) analysis was done to ascertain to impact of different culture practices. Finally, data were presented graphical and tabular forms for better understanding.

Source of Information: Progressive Agriculture 29 (4): 371-379, 2018

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Aquaculture has intensely been commercialized in Bangladesh over the last few decades. Mymensingh is one of the top fish producing districts of the country. This experiment focused on the current trends of farmers’ adaptation to either exotic or indigenous fish culture. Although both the types are important for increased production and keeping fish diversity as well as conserving native strains. Production and profitability of aquaculture either from exotic or indigenous species varied depending on some geographic and demographic factors. Besides farmers experienced some obstacles in boosting their profit from fish culture those are to be addressed properly by concerned authorities. Such base line research should be continued to represent the exact scenario of the fisheries and aquaculture in Bangladesh.

Knowledge Management: Journal