This training course devoted to African students and stakeholders attending the AfriMAQUA conference is part of the MARINE AQUACULTURE TRAINING WORKSHOP held in Mombasa, Kenya, 27th – 28th October 2023, in the continuation of the AfriMAQUA Conference and is part of the International Joint Laboratory action LIMAQUA. The training workshop proposed 5 courses: - Seaweeds in integrated aquaculture - Sustainable strategies for improving health of intensive aquaculture systems - Aquaculture nutrition - Remote sensing for aquaculture and - Economics of aquaculture farms The purpose of the Economics of aquaculture farms was to propose an introduction to the economics of a farm through a self-directed exercise, especially for non economists. Objective was to acquire i) a first understanding of economic and technical performance measurement of aquaculture farms, ii) an introduction to the Costs/Benefits Analysis of production systems and iii) how collecting relevant information for economic analysis. The course was structured according to the following sections: - Introduction to Aquaculture History and its dynamics - Farms and Production systems - Farms Economics - An application to the case of shrimp farming development in the Indonesian province of Lampung, Sumatra