The past history and present trends in the fisheries of Lake Chad

Raji, A. (1993) The past history and present trends in the fisheries of Lake Chad. In: 10th Annual Conference of the Fisheries Society of Nigeria (FISON) , 16-20 November 1992 ,Abeokuta, Nigeria, pp. 213-225.

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Abstract

Lake Chad is a very large, shallow eutrophic lake shared by Chad, Nigeria, Niger and Cameroun. It supplies approximately 13% of Nigeria's inland fish. It however lies in an unstable ecological environment characterised by intermittent period of rainfall and drought. This creates a very large draw down area. Consequently, the fisheries are affected by the oscillation in the size of lake due to the drought. Other factors affecting the volume of water are the numerous dams on the inflow rivers. The fishery is also subjected to intense overfishing and may be affected by pollution and other land use practices. The paper discusses changes that took place over the years as a result of the factors of drought, effect of dams on the inflow rivers. The fishery is also subjected to intense overfishing and may be affected by pollution and other land use practices. The paper discusses changes that took place over the years as a result of the factors of drought, effects of dams and overexploitation. Previous records of fish production, species composition and distribution, the status of the fish stocks, their sizes are compared with more recent data. The status of the fishery before and after the contraction of the lake is discussed. Suggestion for a national exploitation of the lake based on habitat improvement, increasing the volume of the water in the lake through controlled use of the influent rivers as well as reduction in overfishing are made

Item Type: Conference or Workshop Item
Title: The past history and present trends in the fisheries of Lake Chad
Personal Creator/Author:
CreatorsEmail
Raji, A.
Page Range: pp. 213-225
Date: 1993
Event Title: 10th Annual Conference of the Fisheries Society of Nigeria (FISON)
Event Type: Conference
Event Location: Abeokuta, Nigeria
Event Dates: 16-20 November 1992
Issuing Agency: Fisheries Society of Nigeria
Uncontrolled Keywords: Nigeria, Lake Chad; eutrophic lakes; fishery development; fishery resources; lake fisheries; stock assessment
Subjects: Fisheries
Item ID: 3518
Depositing User: Ms Maria Kalentsits
Date Deposited: 07 Jun 2010 13:09
Last Modified: 29 Sep 2011 17:15
URI: http://aquaticcommons.org/id/eprint/3518

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