Seasonal Variability of Biofouling Community Structure in the Gulf of Mannar,Southeast Coast of India:A Multivariate Approach  

作　　者：MARIMUTHU Nithyanandam WILSON James Jerald KUMARAGURU Arumugam Kuppuswamy 

机构地区：[1]Department of Marine and Coastal Studies,School of Energy,Environment and Natural Resources,Madurai Kamaraj University,Madurai 625021,India [2]Zoological Survey of India,Fire-Proof Spirit Building,Indian Museum Complex,Kolkata 700016,West Bengal,India [3]Noorul Islam Center for Higher Education,Kumaracoil,Thuckalay,Kanyakumari District 629180,Tamil Nadu,India

出　　处：《Journal of Ocean University of China》2023年第3期766-776,共11页中国海洋大学学报（英文版）

基　　金：supported by the government of India through DOD-OSTC program entitled‘Biofouling and Antifouling Organisms in the Gulf of Mannar,Southeast Coast of India’(No.DOD/11-MRDF/4/11/UNI/97/P-15);funding by the Department of Ocean Development(Ministry of Earth Sciences,Government of India)through project(No.DOD/11-MRDF/4/11/UNI/97/P-15)。

摘　　要：In this research,an Underwater Biofouling Panel(UWBFP)system was erected for the qualitative and quantitative estimation of macro fouling organisms in the Gulf of Mannar.Forty-four biofoulers were identified from four types of selected test panels.Among these biofoulers,Amphibalanus amphitrite(Darwin,1854)was the dominant one.The concrete panel encouraged the highest barnacle density compared to the other panels.Three series of test panels were used to assess the seasonal density of biofouling communities.The overall variation in barnacle count in the seaward and shoreward sides of all these three series were tested.They were found to be significantly different from each other.The greater variations in the barnacle density observed in this study in A-series of test panels could be due to the lack of or absence of other foulers to compete within the fortnight.The Shannon-Wiener species diversity index showed the highest diversity in wood substratum among the three series with greater accumulation of different types of fouling organisms.Multivariate analyses were also performed to understand the seasonal variation as well as the settlement pattern on the different directions of test panels based on validated data.PCA showed a strong variability(PC1 between 70.8%and 98.6%variance)between the directions of the panels in connection with barnacle density.The shade plot and CAP analysis segregated the short-term A-series test panels from the long-term(B-and C-series)test panels.Hence,the output was helpful in understanding the recruitment status of various faunal resources involved in the biofouling processes.

关 键 词：BIOFOULING BARNACLE hard fouler multivariate analysis fouling biomass Gulf of Mannar 

分 类 号：U672.72[交通运输工程—船舶及航道工程] P75[交通运输工程—船舶与海洋工程]