珠江口东南近海海区污损生物研究
Marine fouling in offshore areas southeast of the Zhujiang River mouth, the northern South China Sea
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摘要: 为研究珠江口东南近海海区污损生物状况,于1986年5月至1987年6月,在香港东南约114和160km,水深为95和113m处布设了两个生物浮标站,并对距香港约172km,水深为115m处的Marex水文气象浮标上的污损生物群落进行调查.此次调查共采集和鉴定出污损生物78种,其中在浸海只有3个月的试板上,主要有柄蔓足类、水螅和藻类,优势种是细板条茗荷、茗荷和直杯螅.至于浸海时间达6～12个月的浮标(包括沉标)及锚链系统,其上还有相当数量的多种双壳类软体动物、无柄蔓足类和苔藓动物等硬性污损生物附着.在种类垂直分布方面,污损生物群落组成随深度发生明显变化.Abstract: To understand the type and extent of marine fouling in offshore areas southeast of the Zhujiang (Pearl) river mouth, the northern South China Sea, an investigation project is conducted within the period from May 1986 to June 1987.Two biological investigation buoy stations were deployed in 95 and 113 m water depth, being 114 and 160 km away from southeast of Hong Kong, respectively.Moreover, the fouling community of a Marex hydrological buoy located in 115 m water depth, being about 172 km away frow Hong Kong Hong Kong was surveyed also.The results show that a total of 78 species were collected and identified.The 3-month panels were mainly occupied by pedunculate barnacles, hydroids and algae.Of them, the dominant species are Conchoderma hunteri, Lepas anatifera and Orthopyxis sp.Oysters, pearloysters, acorn barnacles and bryozoans are only found on the buoys, including the subsurface buoys, and their mooring systems, which had been exposed for 6 and 12 months, respectively.Fouling communities also exhibit a distinct shift of species composition with depth.
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Key words:
- Biofouling /
- offshore structures /
- South China Sea
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