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Variations in massive Porites growth rates at Hainan Island, northern South China Sea
Su, Ruixia; Lough, J. M.; Sun, Donghuai; Lough, JM (reprint author), Australian Inst Marine Sci, PMB 3, Townsville, Qld 4810, Australia.; Lough, JM (reprint author), James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia.
2016
发表期刊MARINE ECOLOGY PROGRESS SERIES
卷号546页码:47-60
摘要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 de creased 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.
部门归属[Su, Ruixia] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Lough, J. M.] Australian Inst Marine Sci, PMB 3, Townsville, Qld 4810, Australia; [Lough, J. M.] James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia; [Sun, Donghuai] Lanzhou Univ, Key Lab West Chinas Environm Syst, Lanzhou 730000, Peoples R China ; 边缘海地质
关键词Porites Spp. Calcification Growth Rates South China Sea Temperature Aquaculture
学科领域Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15591
专题中科院边缘海地质重点实验室
通讯作者Lough, JM (reprint author), Australian Inst Marine Sci, PMB 3, Townsville, Qld 4810, Australia.; Lough, JM (reprint author), James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia.
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GB/T 7714
Su, Ruixia,Lough, J. M.,Sun, Donghuai,et al. Variations in massive Porites growth rates at Hainan Island, northern South China Sea[J]. MARINE ECOLOGY PROGRESS SERIES,2016,546:47-60.
APA Su, Ruixia,Lough, J. M.,Sun, Donghuai,Lough, JM ,&Lough, JM .(2016).Variations in massive Porites growth rates at Hainan Island, northern South China Sea.MARINE ECOLOGY PROGRESS SERIES,546,47-60.
MLA Su, Ruixia,et al."Variations in massive Porites growth rates at Hainan Island, northern South China Sea".MARINE ECOLOGY PROGRESS SERIES 546(2016):47-60.
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