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Project Name
DIVERSITY OF ADAPTIVE GEAR AND THEIR IMPACT ON KAPTAI LAKE FISHERIES
Details

Background/ Justification 

Kaptai Lake is one of the most important freshwater bodies which is considered the largest man-made freshwater resource in South-East Asia. The Kaptai Lake was created in 1961 for hydroelectric power generation by damming Karnafuli River at Kaptai, Rangamati. Although the lake was made for hydroelectric power generation also it creates opportunities for fisheries, water transportation and flood control. Kaptai Lake belongs to multi-species fishery. No craft or gear has been prescribed yet by the government for Kaptai Lake. The types of net, their length, breadth and mesh size varied significantly, depending on the choice and capital of the fishers involved in the fishing operations, as well as the abundance of the fish. Some gears are sometimes developed on the basis of the wishes of the fish traders, as they invest a large amount of capital by disbursing dadan (advance credit disbursement in cash) to the owner fishers.

Exploiting wild fish from the Riverine waters various types of gear are in operation since time immemorial. Many of these gears are now being used in indiscriminate catching of juveniles and adolescents before they attain, generally 23 cm in length. The unplanned use of a few gears has posed a serious threat to the natural recruitment process in the riverine waters. But the operation of all types of gears can not be suspended to allow the juveniles to grow out. It has been felt important to prepare a list of gears that can be operated safely without exploiting illegal- sized juveniles. There are available information on gear selectivity study from some other countries. In Bangladesh, Mazid et al. (1997) and (1999) published paper on gear selectivity study.

So to develop suitable management action plan, determination of suitable mesh size of selective gear and other gears and their characteristics, fishing efficiency etc. are the most important to regulate and obtain a sustainable fish production from Kaptai lake fishery.

Start
01/07/2019
End
30/06/2023
Project Type
fisheries
Latest Status
29/07/2023
label.Details.title

Background/ Justification 

Kaptai Lake is one of the most important freshwater bodies which is considered the largest man-made freshwater resource in South-East Asia. The Kaptai Lake was created in 1961 for hydroelectric power generation by damming Karnafuli River at Kaptai, Rangamati. Although the lake was made for hydroelectric power generation also it creates opportunities for fisheries, water transportation and flood control. Kaptai Lake belongs to multi-species fishery. No craft or gear has been prescribed yet by the government for Kaptai Lake. The types of net, their length, breadth and mesh size varied significantly, depending on the choice and capital of the fishers involved in the fishing operations, as well as the abundance of the fish. Some gears are sometimes developed on the basis of the wishes of the fish traders, as they invest a large amount of capital by disbursing dadan (advance credit disbursement in cash) to the owner fishers.

Exploiting wild fish from the Riverine waters various types of gear are in operation since time immemorial. Many of these gears are now being used in indiscriminate catching of juveniles and adolescents before they attain, generally 23 cm in length. The unplanned use of a few gears has posed a serious threat to the natural recruitment process in the riverine waters. But the operation of all types of gears can not be suspended to allow the juveniles to grow out. It has been felt important to prepare a list of gears that can be operated safely without exploiting illegal- sized juveniles. There are available information on gear selectivity study from some other countries. In Bangladesh, Mazid et al. (1997) and (1999) published paper on gear selectivity study.

So to develop suitable management action plan, determination of suitable mesh size of selective gear and other gears and their characteristics, fishing efficiency etc. are the most important to regulate and obtain a sustainable fish production from Kaptai lake fishery.

Job description

Objectives

1. To identify the gear used in the Kaptai Lake

2. To determine the CPUE and catch composition

3. Cataloging fish and gear of Kaptai lake

4. To analyze cumulative length frequency

5. To reassess carp breeding ground in kaptai lake

Attachments