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Biodegradable fish aggregating devices
Fish aggregating devices constructed with natural or biodegradable materials that reduce the impact of beaching and debris. The term biodegradable is applied to a material or substance that is subject to a chemical process during which microorganisms that are available in the environment convert materials into natural substances such as water, carbon dioxide, and decompose organic matter and that are non-toxic for the marine environment. The time required for biodegradation of different materials varies. Some fishers believe that a FAD should last up to one year before degrading.