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 Kamran Shahani,Hong Song,Syed Raza Mehdi,et al.Design and Testing of an Underwater Microscope with Variable Objective Lens for the Study of Benthic Communities[J].Journal of Marine Science and Application,2021,(1):170-178.[doi:10.1007/s11804-020-00185-9]
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Design and Testing of an Underwater Microscope with Variable Objective Lens for the Study of Benthic Communities


Design and Testing of an Underwater Microscope with Variable Objective Lens for the Study of Benthic Communities
Kamran Shahani1 Hong Song1 Syed Raza Mehdi1 Awakash Sharma2 Ghulam Tunio2 Junaidullah Qureshi1 Noor Kalhoro3 Nooruddin Khaskheli3
Kamran Shahani1 Hong Song1 Syed Raza Mehdi1 Awakash Sharma2 Ghulam Tunio2 Junaidullah Qureshi1 Noor Kalhoro3 Nooruddin Khaskheli3
1. Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316000, China;
2. Marine Science, Ocean College, Zhejiang University, Zhoushan 316000, China;
3. Port and Coastal offshore Engineering, Ocean College, Zhejiang University, Zhoushan 316000, China
Underwater microscopeOpticsCoralsSedimentsPlanktonsMicroplasticArduino
Monitoring the ecology and physiology of corals, sediments, planktons, and microplastic at a suitable spatial resolution is of great importance in oceanic scientific research. To meet this requirement, an underwater microscope with an electrically controlled variable lens was designed and tested. The captured microscopic images of corals, sediments, planktons, and microplastic revealed their physical, biological, and morphological characteristics. Further studies of the images also revealed the growth, degradation, and bleaching patterns of corals; the presence of plankton communities; and the types of microplastics. The imaging performance is majorly influenced by the choice of lenses, camera selection, and lighting method. Image dehazing, global saturation masks, and image histograms were used to extract the image features. Fundamental experimental proof was obtained with micro-scale images of corals, sediments, planktons, and microplastic at different magnifications. The designed underwater microscope can provide relevant new insights into the observation and detection of the future conditions of aquatic ecosystems.


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Received date:。
Foundation item:This study is supported by the Key Research and Development Plan of Zhejiang Province, China (Grant number: 2020C03012).
Corresponding author:Hong Song, hongsong@zju.edu.cn
Last Update: 2021-06-10