Abstract

Marine biogrowth infestation of a seawater intake system was investigated. A digital camera fixed onto a skid was used to record the biogrowth at intervals of 5 m up to a depth of 55 m. Divers inspected the intake shaft and collected the biogrowth samples for biomass estimation. A biomass density of 7.5 kg m⁻² and 28.2 kg m⁻² was recorded at 5 and 30 m depths respectively. Inspection by the divers revealed that hard-shelled organisms such as oysters and brown and green mussels were observed in plenty up to a thickness of 15 cm and bryozoans grew as epibionts. At lower depths (<40 m), hydroids grew on the shells of green mussels along with silt accumulation. The biofouling community was composed of 46 organisms, exhibiting variation in distribution and abundance. The study explains the extent and type of marine biogrowth phenomena with depth and describes biofouling preventive methods.

Supplemental data for this article is available online at https://doi.org/10.1080/08927014.2021.1933457 .

摘要

研究了海水取水系统的海洋生物生长侵扰。使用固定在滑板上的数码相机以 5  m 至 55  m的深度记录生物生长。潜水员检查了入口竖井并收集了生物生长样本以进行生物量估算。分别在 5 和 30 m 深度记录了 7.5  kg m ^-2和 28.2  kg m ^-2的生物质密度 。潜水员的检查显示，在厚达 15 厘米的情况下，大量观察到诸如牡蛎和棕色和绿色贻贝等硬壳生物，并且苔藓虫以表生生物的形式生长。在较低的深度（<40 m)，水螅随着淤泥的积累在绿贻贝的壳上生长。生物污染群落由 46 种生物组成，在分布和丰度上表现出变化。该研究解释了海洋生物生长现象的范围和类型，并描述了生物污垢预防方法。

本文的补充数据可在 https://doi.org/10.1080/08927014.2021.1933457 在线获得。