Assessment of Small Scale Fishery in the South Western Lake Tana, Ethiopia

Ewunetu, Meserte Kassie

dc.contributor.author	Ewunetu, Meserte Kassie
dc.date.accessioned	2017-07-31T04:01:12Z
dc.date.available	2017-07-31T04:01:12Z
dc.date.issued	2017-07-31
dc.identifier.uri	http://hdl.handle.net/123456789/7466
dc.description	Submitted to A thesis presented in partial fulfillment of the requirements for the degree of master of science in Biology stream of Zoology.	en_US
dc.description.abstract	ABSTRACT Catch data on the three commercially important fish groups (Clarias gariepinus, Labeobarbu spp. and Oreochromis niloticus) were studied in South Western part of Lake Tana at Kunzila landing site from October to April 2013. Fish were collected from my observation the fishing gear they used is monofilament gillnet of the fishermen organized into one fishermen Cooperative or association having36 members. They have 26 reed boats of which 7 were used to catch fishes at daily basis for five consecutive days every month. The total catch was 6188 of which 2147 (35 %), 2554 (41%), 1460 (24%) were from Labeobarbus, O niloticus, Cgariepinus respectively. The mean monthly abundance of Labeobarbus catch showed significant variation (p < 0.05). The peak abundance was during January. In this species the largest size fish catch was obtained during November and then the abundance onwards showed a continuous decline. Similarly abundance of O. niloticus (Tilapia) catch also showed significant temporal variation (p < 0.05). The peak abundance for Tilapia was observed during February followed by March. Of all the total African catfish (C. gariepinus) catch the highest abundance was recorded during March followed by April. Length-weight relationship of Labeobarbus, was curvilinear (y=2.007x+0.250) and was significant ( =0.816, p<0.05) with the regression equation fitted to the data collected. The length -weight relationship of NileTilapia was semicurvilinear(y=0.082X+14.70X-125.6) and significant ( with the regression equation fitted to the data of Nile Tilapia. The Length- weight relationship of African catfish was linear (y=0.029X+0.576) and significant ( =0.703, P<0.05) with the regression equation fitted to the data of African catfish. The overall production of the three species obtained was 14,434.1 kg (1.44 tonnes). A temporal distribution was studied through analysis of variance (one wayANOVA) of l catch data. Keywords: Abundance, Clariasgariepinus, Labeobarbus Oreochromis O.niloticus, Stock assessment, Kunzila	en_US
dc.subject	biology	en_US
dc.title	Assessment of Small Scale Fishery in the South Western Lake Tana, Ethiopia	en_US
dc.type	Thesis	en_US