Nereis sp. (Polychaete) belongs to the Nereidae family that lives as benthic organisms in estuarine. The high level of amino acid and unsaturated fatty acid in Nereis sp. is potentially used as a nutrient in prawn feed. These compositions increase the quality of prawn gametes and larvae. However, there is still less information about the nutrient composition of Nereis sp. in the Jeruklegi area. Therefore, a study about nutrient composition (chemical composition) of Nereis sp. in this area was conducted to provide necessary information for the Nereis sp. culture in the future. This study used a survey method, and sampling was conducted in four stations with three replications at each three-sampling point in each station. The result showed no significant differences in protein and fat composition of Nereis sp. among stations. The protein contents ranging from 42.06 to 51.68%, and fat content range from 12.93 to 22%. The high content of both protein and lipid are reliable to fulfill the requirements in prawn farming. Therefore, Nereis sp. from Jeruklegi has a high potential to be utilized as a new food resource on prawn farming.

沙蚕sp。(Polychaete) 属于 Nereidae 家族，作为河口的底栖生物生活。沙蚕中氨基酸和不饱和脂肪酸含量高。有可能用作虾饲料中的营养物质。这些组合物提高了对虾配子和幼体的质量。然而，关于沙蚕的营养成分的信息仍然较少。在耶鲁克吉地区。因此，对沙蚕的营养成分（化学成分）进行了研究。进行这一领域的工作是为了为Nereis提供必要的信息sp。未来的文化。本研究采用调查法，在四个站点进行抽样，每个站点的三个采样点重复三次。结果表明沙蚕的蛋白质和脂肪组成没有显着差异。车站之间。蛋白质含量为42.06～51.68%，脂肪含量为12.93～22%。蛋白质和脂质的高含量可以可靠地满足对虾养殖的要求。因此，Nereis sp。来自 Jeruklegi 的虾具有很大的潜力被用作对虾养殖的新食物资源。