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… Aquaculture Needs 33 Guide D: Feed Ingredients 43 Guide E: Organic Matter in the Effluents 53 Guide F: Pathogen Transfer … legally licensed antibiotics should be used. • The use of persistent chemicals should be reduced. • Sanitary plans … species, but their residues are often highly toxic and persistent in the water and sediment, killing non-target …

… capacity to absorb and assimilate excess loading of organic compounds and nutrients. Therefore production should … (NRM) and biodiversity conservation is fundamental and persistent, and surrounds not only underlying natural systems … is also indicated, and in some countries heavy metals and pollutant levels are required or can be measured. Analysis of …