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Feasibility of Carps Fry Raising in Kaptai Lake Creeks.

A.K.M. Saiful Islam
Senior Scientific Officer
Riverine Sub-station, Bangladesh Fisheries Research Institute, Rangakati-4500

Kazi Belal Uddin
Scientific Officer
Riverine Sub-station, Bangladesh Fisheries Research Institute, Rangakati-4500

S. Sanjib Basak
Scientific Officer
Riverine Sub-station, Bangladesh Fisheries Research Institute, Rangakati-4500

Abstract/ Executive Summary:

The experiment was carried out for 60 days until the fish attain fingerling size. After 60 days trial, all fingerlings were harvested for estimating the feasibility of carp fry raising in Kaptai lake. For this survivality, growth, length, weight, and health condition was analyzed of the final catch. It is revealed that survival rate is satisfactory and growth is excellent after 60th days of rearing of different carp species; Catla: Length- 9.59cm, Weight- 7.72g, Rui: Length- 5.18cm, Weight- 4.01g, & Mrigal: Length- 6.02cm, Weight- 3.92g on an average.

Keywords: Carp nursing Rui, Catla, Mrigal

Location: Rangamati

Start Date: July 2009

End Date: June 2013

Program Area: Variety and Species

Commodity: Carp fish

Objectives:

A. Assessment of the number of suitable creeks for carp seed raising;

B. Study of the survival, growth & economic viability of carp seed raising in the creek;

C. To develop a technology package; rationalize findings with those of private entrepreneurs; demonstration of results to extension agencies.

D. Study of the survival, growth & economic viability of carp seed raising in the creek; to develop a technology package; rationalize findings.

Methodology:

The experiment was conducted in three suitable creeks of 2.5, 3.0, 2.5 acre at Langadhu Upazilla of Rangamati Hill District. The creeks were constructed by fencing off the mouth of the creek with small meshed knotless polythene net that would filled by reservoir backwaters. Good quality fry of three important carps species Rui, Catla, Mrigal was collected from Raipur DoF carp hatchery at Laximpur. Five days age spawn was released in each creek at the rate of 1kg/acre. A mixture of rice bran (50%) and mustard oil cake (50%) was administrated as feed at the rate of 200-500% body weight of the total biomass. Sampling was done fortnightly with fine mesh sized net, fry was caught from each creek. Monitored the biological variables occasionally and monitored the water quality variable regularly on in every 15 days interval and special emphasis was given on water level of the creek.

Source of Information: Annual Research Program 2012-13. BFRI, Mymensingh.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: Thirty one lakh fifty thousand

Total Budget (Tk.) : Thirty one lakh fifty thousand

Achievement/Findings:

A group of entrepreneurs living within immediate vicinity of the Kaptai lake creek, which have property right (beneficiaries), were assigned for overall management of carp raising. At least 10 to 15 beneficiaries were considered for a group selection including a team leader. Entrepreneurs were responsible for guarding, cleaning shoreline of creeks, administering feed as per requirement, taking part of fish harvesting, etc. As such, attending the aforesaid activities they became acquainted themselves in all stages of technology development that would turn them capable to undertake such type of aquaculture system individually at the end of project.

Knowledge Management: Report/Proceedings