A preliminary study on the feasibility of using fenced brushparks for fish production in Lake Chilwa, Malawi

Jamu, D.M. and Chaula, K. and Hunga, H. (2003) A preliminary study on the feasibility of using fenced brushparks for fish production in Lake Chilwa, Malawi. Naga, Worldfish Center Quarterly, 26(1), pp. 1-5.

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Abstract

A study to investigate the feasibility of using fenced brushparks for fish ranching in Lake Chilwa was conducted for five months at the Kachulu Harbor. In a water depth of 1.4 m enclosures constructed from bamboo sticks embedded in the sediment and surrounded by a 13 mm seine net, were filled with three different subrates (Typha, bamboo, and Sesbania branches) and a no substrate enclosure served as a control. Netting materials contributed 57 per cent towards the total cost (US$ 0.24-0.30/m2) of brushpark contruction. Fish productivity was highest in the Typha, bamboo and control treatments and lowest in the Sesbania treatments. The decomposition of substrates did not affect water quality. The results indicate that enclosed brushparks may be a feasible technology for enhancing fish yields and providing alternative income sources to fisherfolk in small lakes and water bodies.

Item Type: Article
Title: A preliminary study on the feasibility of using fenced brushparks for fish production in Lake Chilwa, Malawi
Personal Creator/Author:
CreatorsEmail
Jamu, D.M.
Chaula, K.
Hunga, H.
Journal or Publication Title: Naga, Worldfish Center Quarterly
Volume: 26
Number: 1
Page Range: pp. 1-5
Date: 2003
ISSN: 1511-8533
Issuing Agency: WorldFish Center
Uncontrolled Keywords: Inland fisheries; Brushparks; Substrata; Malawi, southern, Chilwa L.; Oreochromis shiranus; Barbus paludinosus; Clarias gariepinus; Haplochromis callipterus
Subjects: Aquaculture
Fisheries
Item ID: 9249
Depositing User: Mr William Ko
Date Deposited: 30 Nov 2012 08:30
Last Modified: 30 Nov 2012 08:30
URI: http://aquaticcommons.org/id/eprint/9249

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