ABSTRACT
The reduction of wild fish catches and the rising demand for sea food protein, by world human population, during the past few decades, have been compensated by a rapid increase of aquaculture production. Major environmental impacts of aquaculture have been associated with high-input high-output intensive systems. After a brief description of the type of waste produced by an aquaculture system, this chapter reviews some available technologies and protocols to improve the waste management of a fish farm and describes sustainable options for waste reuse and valorisation. The solid matter, in the form of faeces and waste feed, constitutes the major concern in the management of waste water in aquaculture. In the short and medium term, the application of an integrated system, at full production scale, will definitely demonstrate the effectiveness of this technology to afford one of the main challenges of future aquaculture. Protocols and methods have been set up for the re-use and/or disposal of waste and by-products.
