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首页> 外文期刊>Marine pollution bulletin >The status of the ecological environment and a proposed protection strategy in Sanya Bay, Hainan Island, China
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The status of the ecological environment and a proposed protection strategy in Sanya Bay, Hainan Island, China

机译：中国海南岛三亚湾的生态环境现状及保护策略

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Sanya Bay encompasses a high diversity of natural habitats, ranging from coral reefs, rocky and sandy shores and mudflats to mangroves. Seasonal physicochemical and biological investigations were conducted from 1998 to 1999 and again in April 2000. Water-related environmental quality in Sanya Bay is in good condition. The levels of dissolved oxygen, nitrogen, phosphorus and heavy metals are within the first class of National Seawater Quality Standards for China. Annual mean values of chlorophyll a of 0.93 mgm~(-3) and phytoplankton primary productivity of 440.8 mgCm~(-2)d~(-1), respectively, were found in the waters, both of which show a significant correlation with inorganic nitrogen. A mean new productivity of 144.6 mgCm~(-2)d~(-1) was recorded in summer. Sanya Bay is rich in natural resources and biodiversity with 235 species of phytoplankton and 129 species of zooplankton identified in the survey. The annual mean abundance of phytoplankton and zooplankton were 1564 x 10 cells m~(-3) and 121 individuals m~(-3), respectively, with an annual mean zooplankton biomass of 129 mgm~(-3). A total of 243 species of fish were sampled in the survey including many of high economic value. Three hundred and eighty-four species of benthos in 121 families were found by mud sampling and trawling. The average biomass of benthic organisms was 11.55 gm~(-2), with a density of 31 individuals m~(-2). Molluscs were the dominant group, followed by crustaceans; coelenterates exhibited the lowest biomass. One hundred and twenty-six species from 48 families of intertidal organisms were collected by frame sampling, with a mean annual biomass of 644.7 gm~(-2) and average density of 816 individuals m~(-2). The highest biomass of 1673.5 gm~(-2) was collected in a coral reef region, while the highest density of 1219 individuals m~(-2) occurred in a mangrove region. The coastline is characterized by coral reefs that accounts for 30% of the total coastline length in the bay, so coral reefs are a key ecosystem that are important for maintaining the regional marine resources and biodiversity. We need to pay much more attention to such diverse marine resources to maintain the integrity and function of these coastal ecosystems.
机译：三亚湾拥有丰富的自然栖息地，从珊瑚礁，多石的沙质海岸和滩涂到红树林。 1998年至1999年以及2000年4月进行了季节性的理化和生物学调查。三亚湾与水有关的环境质量处于良好状态。溶解氧，氮，磷和重金属的含量在中国国家一级海水质量标准之内。水域的叶绿素a的年平均值分别为0.93 mgm〜（-3）和浮游植物的初级生产力为440.8 mgCm〜（-2）d〜（-1），两者均与无机盐呈显着相关性。氮。夏季平均新生产力为144.6 mgCm〜（-2）d〜（-1）。三亚湾拥有丰富的自然资源和生物多样性，调查中发现了235种浮游植物和129种浮游动物。浮游植物和浮游动物的年平均丰度分别为1564 x 10个细胞m〜（-3）和121个个体m〜（-3），年平均浮游生物量为129 mgm〜（-3）。调查共取样了243种鱼类，其中许多具有很高的经济价值。通过泥浆取样和拖网发现了121个家庭中的384种底栖生物。底栖生物的平均生物量为11.55 gm〜（-2），密度为31个个体m〜（-2）。软体动物占主导地位，其次是甲壳类。腔肠动物表现出最低的生物量。通过框架抽样，收集了48个潮间带生物的126种，年平均生物量为644.7 gm〜（-2），平均密度为816个个体m〜（-2）。珊瑚礁地区的生物量最高，为1673.5 gm〜（-2），而红树林地区的生物量最高，达1219个体m〜（-2）。海岸线的特点是珊瑚礁占海湾总海岸线长度的30％，因此珊瑚礁是关键的生态系统，对于维护区域海洋资源和生物多样性至关重要。我们需要更加注意这种多样化的海洋资源，以保持这些沿海生态系统的完整性和功能。

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