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International Journal of Fisheries and Aquatic Studies
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E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2017, Vol. 5, Issue 3, Part E

Comparison of the efficiency of monofilament and multifilament gillnets in lake Liambezi, Namibia


Author(s): EK Simasiku, SK Mafwila and GS Sitengu

Abstract: Lake Liambezi in the Zambezi Region of Namibia, formerly known as the Caprivi Region, is shallow (<6m deep) and characterised by cyclic episodes of filling and drying. A fishery has been established on the lake in 2000 with more than 300 canoes and 120 fishermen using monofilament and multifilament gillnets. Fishing experiments were conducted to determine the catch per unit effort (CPUE) between gillnet types. The CPUEs of monofilament and multifilament gillnets were comparatively investigated between May 2011 and April 2012. Each net type had five nets with stretched mesh sizes of 76 mm, 89, 102, 114, and 127 with a depth of 76 meshes and a hanging ratio of 0.5. The results of this experiment showed that monofilament gillnets catch per unit effort (CPUE) was 2.7 folds higher than that of multifilament gillnets for catching Oreochromis andersonii, Serranochromis macrocephalus and Clarias spp. Oreochromis andersonii comprised over 45% of the overall CPUE for both net types combined indicating the importance of this species in the gillnet fishery on the lake. Based on this study and other relevant studies in the same lake, we recommend that management interventions be put in place to manage the Lake Liambezi fishery by imposing restrictions on effort (number of fishing boats), gear type and mesh sizes and access

Pages: 350-355  |  534 Views  21 Downloads

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How to cite this article:
EK Simasiku, SK Mafwila, GS Sitengu. Comparison of the efficiency of monofilament and multifilament gillnets in lake Liambezi, Namibia. Int J Fish Aquat Stud 2017;5(3):350-355.
International Journal of Fisheries and Aquatic Studies