Eastern Hainan Island, South China Sea Annual Growth Rate Data for 16 Porites Coral Cores from 1860-2003 AD Su, R.; Lough, J.M.; Sun, D. Su, R. Lough, J.M. Sun, D. earth science/paleoclimate/corals and sclerosponges (calcification rate,Porites lutea,null,gram per square centimeter per year,null,corals and sclerosponges,raw,x-ray densitometry,N,null) earth science/paleoclimate/corals and sclerosponges (calcification rate,Porites lobata,null,gram per square centimeter per year,null,corals and sclerosponges,raw,x-ray densitometry,N,null) earth science/paleoclimate/corals and sclerosponges (age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges (extension rate,Porites lutea,null,centimeter per year,null,corals and sclerosponges,raw,x-radiography,N,null) earth science/paleoclimate/corals and sclerosponges (density,Porites lutea,null,gram per cubic centimeter,null,corals and sclerosponges,raw,x-ray densitometry,N,null) earth science/paleoclimate/corals and sclerosponges (density,Porites lobata,null,gram per cubic centimeter,null,corals and sclerosponges,raw,x-ray densitometry,N,null) earth science/paleoclimate/corals and sclerosponges (extension rate,Porites lobata,null,centimeter per year,null,corals and sclerosponges,raw,x-radiography,N,null) earth science/paleoclimate/corals and sclerosponges (Hainan Island>LATITUDE 19.315>LONGITUDE 110.675) Annual density banding in massive coral skeletons provides a means to retrospectively monitor coral growth rates. In this study, we present new records of annual skeletal density, linear extension and calcification rates for 16 Porites spp. coral cores from northeastern Hainan Island, northern South China Sea. Based on average growth characteristics from 1948 to 2001, P.lobata had significantly higher linear extension and calcification rates and lower density than P.lutea. We also found evidence of an age-related effect on growth, whereby skeletal density decreased and linear extension rate increased through time. This did not affect calcification rates. The average calcification rate for northeastern Hainan Island Porites matches that expected for Indo-Pacific Porites based on average sea surface temperatures (SST) from 1961 to 1990. After removal of the ontogenetic trends, average 16-core calcification rates from 1923 to 2002 showed an initial increase, matching observed SST warming. After 1982, however, calcification significantly decreased, although SST did not continue to warm. We suggest that the lower calcification rates from 1983 to 2002 may be a response to eutrophication of coastal waters as a result of extensive coastal aquaculture development. In summary, our new growth records from Hainan Island show that, despite species differences, calcification rates were typical of Indo-Pacific Porites but that in the latter half of the 20th Century, calcification rates have likely responded to both globally and locally induced changes in the marine climate experienced by the corals. STUDY NOTES: Annual growth data for 16 coral cores from Oucan (ID=OC) and Qingge (ID=QG) fringing reef. Cores also identified as either Porites lutea and Porites lobata. Growth rates determined from X-ray densitometry. Provided Keywords: Porites, calcification, growth rates, South China Sea, Hainan Island, temperature, aquaculture NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Su, R. Investigator : Lough, J.M. Investigator : Sun, D. 2016-03-28 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/19923 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg042.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c04a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c034.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg5.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg045.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c033.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg041.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c031.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg0410.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg048.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg049.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg047.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg044.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c032.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg043.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg046.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg042.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c04a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c034.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg5.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg045.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c033.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg041.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c031.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg0410.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg048.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg049.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg047.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg044.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c032.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg043.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg046.txt English https://www.ncdc.noaa.gov/paleo/study/19923 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg042.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c04a.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c034.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg5.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg045.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c033.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg041.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c031.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg0410.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg048.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg049.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg047.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg044.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-0c032.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg043.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/su2016/su2016-qg046.txt Su, Ruixia, J.M. Lough and Donghuai Sun2016Variations in massive Porites growth rates at Hainan Island, northern South China SeaMarine Ecology Progress Series54647-6010.3354/meps11654 START YEAR: 1860 AD * END YEAR: 2003 AD 110.67 19.3 110.68 19.33