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Using Every Drop: Do Fish Scales Have Nutritional Value?

Fish scales are usually the first thing we as humans scrape off and throw away when preparing fish. The main purpose of scales in fish is protection from predators and parasites, which is why they are relatively hard. The overlapping nature of the scales also helps with streamlining the fishes’ body so that movement in …

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How to Make Fish Scale Fertilizer

People have been using fish byproducts, such as fish scales and bones, as fertilizer for centuries. Native Americans used to put small fish in tilled soil before planting their seeds; these small fish decomposed slowly, thereby releasing small amounts of nutrients to the plants as they grow. Today, fish waste is usually incorporated in fertilizer; …

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