A review of diseases associated with cage culture systems: diagnosis and control in smale scale fish farming

Okaeme, A.N. and Olufemi, B. and Amubode, F. (1999) A review of diseases associated with cage culture systems: diagnosis and control in smale scale fish farming. In: 13th Annual Conference of the Fisheries Society of Nigeria (FISON) , 3-8 November 1996 ,New Bussa, Nigeria, pp. 92-96.

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Abstract

Fish cage culture is a rapid aquacultural practice of producing fish with more yield compared to traditional pond culture. Several species cultured by this method include Cyprinus carpio, Orechromis niloticus, Sarotherodon galilaeus, Tilapia zilli, Clarias lazera, C. gariepinus, Heterobranchus bidorsalis, Citharinus citharus, Distochodus rostratus and Alestes dentes. However, the culture of fish in cages has some problems that are due to mechanical defects of the cage or diseases due to infection. The mechanical problems which may lead to clogged net, toxicity and easy access by predators depend on defects associated with various types of nets which include fold sieve cloth net, wire net, polypropylene net, nylon, galvanized and welded net. The diseases problems are of two types namely introduced diseases due to parasites. The introduced parasites include Crustaseans, Ergasilus sp. Argulus africana, and Lamprolegna sp, Helminth, Diplostomulum tregnna: Protozoan, Trichodina sp, Myxosoma sp, Myxobolus sp. the second disease problems are inherent diseases aggravated by the very rich nutrient environment in cages for rapid bacterial, saprophytic fungi, and phytoplanktonic bloom resulting in clogging of net, stagnation of water and low biological oxygen demand (BOD). The consequence is fish kill, prevalence of gill rot and dropsy conditions. Recommendations on routine cage hygiene, diagnosis and control procedures to reduce fish mortality are highlighted

Item Type: Conference or Workshop Item
Title: A review of diseases associated with cage culture systems: diagnosis and control in smale scale fish farming
Personal Creator/Author:
CreatorsEmail
Okaeme, A.N.
Olufemi, B.
Amubode, F.
Page Range: pp. 92-96
Date: 1999
Event Title: 13th Annual Conference of the Fisheries Society of Nigeria (FISON)
Event Type: Conference
Event Location: New Bussa, Nigeria
Event Dates: 3-8 November 1996
Issuing Agency: Fisheries Society of Nigeria
Uncontrolled Keywords: Nigeria; cage culture; fish diseases; parasitic diseases
Subjects: Aquaculture
Item ID: 3729
Depositing User: Ms Maria Kalentsits
Date Deposited: 13 Jul 2010 09:53
Last Modified: 29 Sep 2011 16:56
Related URLs:
URI: http://aquaticcommons.org/id/eprint/3729

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