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A Study on Fishing Gears and Methods in the Chalan Beel of North-west Bangladesh

S.M.Galib
Department of Fisheries, University of Rajshahi, Rajshahi

M.A. Samad
Department of Fisheries, University of Rajshahi, Rajshahi

M.M. Kamal
Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh

M.A. Haque
Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh

M.M. Hasan
Department of Fisheries, University of Rajshahi, Rajshahi

Abstract/ Executive Summary:

A total of 27 fishing gears and 2 Fish aggregating device (FAD) were recorded at Chalan beel. Fishing gears were categorized as nets (12), traps (5), hooks and lines (6) and wounding gears (4). Among nets, highest mean mesh size recorded 3.88 ± 0.79 cm in Chabi Jal whereas the lowest was Thela Jal (0.30 ± 0.32 cm). The highest fishing duration per day was found for Current Jal (Gill net) (290.9 ± 0.20 hr.) and the lowest was recorded in case of Thela Jal (1.96 ± 0.72 min.). The highest Catch per unit effort (CPUE) was found in Pangti Jal (89.4 ± 27.6) and the lowest was found in Thela Jal (3.95 ± 2.68). Major fish species caught in different fishing nets were Punti (Puntius sp.) in Current Jal (45.26%), Punti Jal (73.17%) and in Pangti Jal (18.08%), Chanda (Chanda nama, Parambassis ranga, and P. lala) in Khora Jal (17.32%), Chela (Salmostoma sp.) in Dharma Jal (18.75%) and Bor Jal (23.61%), Colisa and Darkina (Esomus danricus) in Thela Jal (17.24% each), Chapila (Gudusia chapra) in Jakhi Jal (21.58%), Punti and tengra (Mystus sp.) in Moi Jal (16.8% each), Darkina in Hatbadai Jal (22.22%). Except some, majority fish species trapped in the recorded fishing traps were SIS, whereas fishing hooks and lines were used to catch carnivorous fish species mainly. Wounding fishing gears were used for wounding large size fishes during heavy flood or when water level becomes low. Fishing was also done by creating FADs using Bana and Katha in different places of Chalan Beel.

Keywords: Chalan Beel, CPUE, Fishing gears, FADs

Location: The Chalan Beel, the North-West region of Bangladesh

Start Date: 00-09-2006

End Date: 00-08-2007

Program Area: Postharvest and Agro-processing

Commodity: Fish

Objectives:

1. The present study was conducted with the aim of identifying different fishing gears and fishing methods used in the Chalan Beel focusing mainly on physical description, catch composition, fishing period and Catch per unit effort (CPUE ).

Methodology:

Location and description of the Chalan Beel - The Chalan Beel is an important water resource in the North-West region of Bangladesh and it is the biggest beel of the country. The total area of this beel in monsoon season is about 300-320 square kilometers whereas in winter and summer the area decreases down to about 50-75 square kilometers. Most of the areas of the Chalan Beel has water depth of about 2- 2.5 meters. The Chalan Beel covers an area belonging to Atrai Upazila of Nowgaon district, Singra, Gurudaspur, Boraigram Upazilas of Natore district, Chatmohor, Bhangura Upazilas of Pabna district, and Tarash, Ullapara, Raygonj Upazilas of Sirajgonj district. The Chalan Beel is a combination of many small to large size beels. The main constituent beels of Chalan beel are, from west to east: Purba Maddhanagar, Piprul, Dangapara, Laror, Tajpur, Niala, Chalan, Majhagaon, Briasho, Chonmohan, Satail, Khardaha, Darikushi, Kajipara, Gajna, Bara, Sonapatila, Ghugudaha, Kuralia, Chiral, Dikshi and Gurka. The big-size depressions (i.e. beels) are mostly in Pabna district. They are: Gajna, Bara, Sonapatila, Ghugudaha, Chiral and Gurka. Study time and spots - This study was conducted for a period of twelve months from September 2006 to August 2007. To carry out the present study different spots of Chalan beel under 8 Upazilas of 4 districts were selected. These spots cover Atrai Upazila (Nawgaon); Natore Sadar, Singra, Baraigram, Gurudaspur (Natore); Chatmohor, Bhangura (Pabna); and Tarash (Sirajganj) Upazilas. The study sites were selected in such a way that these spots cover all the major areas of Chalan Beel. Data collection and analyses - Fishing gears were identified during their operation. Local name of the gear, physical characteristics, mode of operation, target fish species and CPUE of nets were recorded on the spot during survey. Recorded fishing gears were categorized into 5 types viz. net, trap, hook and line, wounding gear, and Fish aggregating device (FAD). CPUE of nets were detected by calculating number of fishes caught after every single operation. Nets were selected randomly for this purpose. Different fish caught in various nets (in percentage, %) were calculated manually by counting each fish species. Other related data were collected from fishermen. The statistical analysis like average value, standard deviation of collected data was done with MS Excel.

Source of Information: J. Environ. Sci. & Natural Resources, 2(2): 213-218, 2009; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Majority fishing gears and methods recorded were found harmful for fishing biodiversity and abundance. No proper monitoring was also recorded. Use of illegal and destructive fishing like current jal and katha fishing were considered nightmare to fishes of any size. Proper monitoring and establishment of fish sanctuaries are badly needed to improve the present situation.

Knowledge Management: Journal