|
| Investigation on Initial Fouling of Microscopic Organisms in Several Harbors of China |
| Received:October 25, 2018 Revised:April 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.04.001 |
| KeyWord:micro-fouling organisms marine biofouling port biological survey |
| Author | Institution |
| ZHENG Ji-yong |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| SUN Zhi-yong |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| QIU Ri |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| HOU Jian |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| WANG Li |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| ZHANG Jin-wei |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| LIN Cun-guo |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Objective To investigate the microscopic biofouling of representative ports in the Bohai Sea, Yellow Sea, East China Sea and South China Sea. Methods In the ports of Tianjin, Qingdao, Ningbo, Zhanjiang and Sanya, the field exposure experiment of samples was carried out. The initial biological pollution of coastal ports from north to south was studied by staining, encapsulation, microscopic observation and counting. Results A new test method for investigation of the initial attachment status of biofouling was established by field immersion of slide and microscopic observation of fluorescence. Microscopic biofouling was dominated by bacteria and diatoms. Microscopic organisms were attached to the surface within a few hours after the samples were immersed in seawater. The biomass attached to the surface of the hanging slices of different ports was different. The number of bacteria and microalgae on the surface of the samples was about 100-300 cells/mm2, and 10-60 cells/mm2 respectively after 24 hours of immersion in the sea. In the same exposure period, the biomass attached to the surface of the hanging slices in seawater with higher temperature was higher. As the latitude of the port increased, the biomass on the surface of the slices decreased. Conclusion Bacteria and diatoms are the main initial fouling of microorganisms in the coastal seaports in China. The biomass attached in the early stage is affected by the latitude of the port. The bioaccumulation of microorganisms in the five seaports within one day is more than 10 cells/mm2. |
| Close |
|
|
|