This study investigated the environmental characteristics and macrobenthic community structures of an intertidal flat located on Yubu Island in the western coastal area of the Yellow Sea of South Korea. The study site has been well known for the migratory bird protection designated by UNESCO. We collected the samples of surface and depth core sediments and macrobenthos from the unused saltern and the area surrounding it in July 2017. Our results demonstrated that the means of mud, total carbon, and total nitrogen contents were 50%, 0.35% and 0.05%, respectively, and the origin of sediment composed of marine sources. The sedimentation rate ranged from 0.99 to 1.66 cm y⁻¹, which was higher than other tidal flats in the Yellow Sea. The result of a topographic analysis indicated that the area in the unused saltern was 289.489 m², and the length and width were 625 m and 500 m, respectively. A total of 13 species occurred with a mean density of 92 ind. m⁻² and a mean biomass of 58.6 gWWt m⁻². The Heteromastus filiformis (23.1%, 21 ind. m⁻²) was the most dominant species, followed by Perinereis linea (19.2%, 18 ind. m⁻²) and Tubuca arcuata (17.3%, 16 ind. m⁻²). Thus, this environmental information will help to establish policies to protect migratory birds in the future.

中文翻译：

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联合国教科文组织指定的韩国候鸟保护区浴布岛的环境特征和大型底栖动物群落结构

本研究调查了位于韩国黄海西部沿海地区由布岛的潮间带公寓的环境特征和大型底栖动物群落结构。该研究地点因联合国教科文组织指定的候鸟保护而闻名。我们于2017年7月从未使用的盐场及其周围地区收集了表层和深层岩心沉积物和大型底栖动物的样本。我们的结果表明，泥浆，总碳和总氮的含量分别为50％，0.35％和0.05％分别由海洋源和沉积物组成。沉积速率范围为0.99至1.66 cm y ^-1高于黄海的其他滩涂。地形分析结果表明，未使用的盐罐中的面积为289.489 m ²，长度和宽度分别为625 m和500 m。总共发生了13种，平均密度为92 ind。m ^-2，平均生物量为58.6 gWWt m ^-2。所述Heteromastus丝状（23.1％，21 IND。米^-2）是最优势种，随后Perinereis LINEA（19.2％，18 IND。米^-2）和Tubuca arcuata（17.3％，16 IND。米^-2）。因此，这些环境信息将有助于制定保护候鸟的政策。