| 印尼穿越流区现代浮游有孔虫四个属种壳体的稳定碳、氧同位素及其意义 |
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| 引用本文： | 张鹏,Rina Zurai,徐建,杨策.印尼穿越流区现代浮游有孔虫四个属种壳体的稳定碳、氧同位素及其意义[J].海洋学报(英文版),2016,35(10):63-75. |
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| 作者姓名： | 张鹏 Rina Zurai 徐建 杨策 |
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| 作者单位： | 中国水产科学研究院 南海水产研究所 广东省渔业生态环境重点实验室, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源环境科学观测实验站, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源开发利用重点实验室, 广东 广州 510300,中国水产科学研究院 南海水产研究所 广东省渔业生态环境重点实验室, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源环境科学观测实验站, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源开发利用重点实验室, 广东 广州 510300,中国水产科学研究院 南海水产研究所 广东省渔业生态环境重点实验室, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源环境科学观测实验站, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源开发利用重点实验室, 广东 广州 510300,中国水产科学研究院 南海水产研究所 广东省渔业生态环境重点实验室, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源环境科学观测实验站, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源开发利用重点实验室, 广东 广州 510300,中国水产科学研究院 南海水产研究所 广东省渔业生态环境重点实验室, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源环境科学观测实验站, 广东 广州 510300;中国水产科学研究院 南海水产研究所 农业部南海渔业资源开发利用重点实验室, 广东 广州 510300 |
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| 基金项目： | 国家自然科学基金项目（41406188）；广东省省级科技计划项目（2014A020217011）；国家科技支持计划项目（2013BAD13B06）；农业部财政重大专项（NFZX2013） |
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| 摘 要： | Horizontal and vertical distributions of δ~(18)O and δ~(13)C were investigated in shells of four planktonic foraminiferal species, Globigerinoides ruber, Globigerinoides sacculifer, Pulleniatina obliquiloculata and Neogloboquedrina dutertrei, from a total of 62 core-top sediment samples from the Indonesian throughflow region. Results were compared to modern hydrologic conditions in order to explore potential of proxies in reconstructing fluvial discharge and upper ocean water column characteristics in this region. Our results show that, in the Makassar Strait, both of depleted δ~(18)O and δ~(13)C of these four species were linked to freshwater input. In the Bali Sea,however, depleted δ~(18)O and δ~(13)C for these species may be due to different reasons. Depleted δ~(18)O was a result of freshwater input and as well influenced by along-shore currents while depleted δ~(13)C was more likely due to the Java-Sumatra upwelling. Comparison of shell δ~(18)O records and hydrographic data of World Ocean Atlas 2005 suggests that G. ruber and G. sacculifer calcify within the mixed-layer, respectively at 0–50 m and 20–75 m water depth, and P. obliquiloculata and N. dutertrei within the upper thermocline, both at 75–125 m water depth. N.dutertrei calcifies at slightly deeper water depth than P. obliquiloculata does. In general, δ~(13)C values of both G.ruber and G. sacculifer are larger than those of P. obliquiloculata and N. dutertrei at all sites, possibly related to depth habitats of these species and vertical distribution of nutrients in the Indonesian throughflow region.
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| 关 键 词： | 南沙海域|浮游端足类|虫 戎|群落结构|沿岸水|海流|管水母 |
| 收稿时间： | 2015/8/30 0:00:00 |
| 修稿时间： | 2016/4/22 0:00:00 |
Stable carbon and oxygen isotopes of four planktonic foraminiferal species from core-top sediments of the Indonesian throughflow region and their significance |
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| ZHANG Peng,ZURAIDA Rin,XU Jian and YANG Ce.Stable carbon and oxygen isotopes of four planktonic foraminiferal species from core-top sediments of the Indonesian throughflow region and their significance[J].Acta Oceanologica Sinica,2016,35(10):63-75. |
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| Authors: | ZHANG Peng ZURAIDA Rin XU Jian and YANG Ce |
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| Institution: | 1.State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069, China;Institute of Cenozoic Geology and Environment, Department of Geology, Northwest University, Xi'an 710069, China2.Marine Geology Institute, Bandung 40174, Indonesia |
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| Abstract: | Hyperiid community characteristics were analyzed using net and concurrent environmental data obtained during seasons of 2013. We evaluated the effect of monsoon changing on hyperrid community and the correlation between hyperiid and siphonophire. We identified 63 species comprised of 26 genera within 12 families for the hyperiid community. This hyperiid community can be divided into three groups:spring group, summer group and autumn-winter group. Hyperiid fauna belongs to the typical tropical ocean region with two ecotypes:the oceanic ecotype with more species and the euryhaline ecotype with higher abundance. Seven seasonal dominant species were Lestrigonus bengalensi, Eupronoe intermedia, E. maculate, Phronima sedentaria, Lycaeopsis zamboanmgae, Tetrathyrus forcipatus and Amphithyrus muratus while L. bengalensi was the annual dominant specieswith noticeable domination. The annual mean of hyperiid abundance was 18.30×10-2 ind/m3 and annually abundant hyperiid distributed on the continental shelf. The seasonal means of hyperiid abundance were consistent while the seasonal horizontal distributions showed significant differences through seasons. The annual means of hyperiid richness index, diversity index, evenness index and diversity threshold were 1.23, 1.28, 0.33 and 0.48, respectively. Hyperiid composition changed along with the effect of monsoon reversal on the expending and shrinking of coastal hypohaline waters. The horizontal distribution of hyperiid abundance and diversity threshold changed along with the surface currents driven by monsoon reversal. The correlation analysis indicates a symbiosis relationship between hyperiid and siphonophore in Nansha Islands waters. Due to such a symbiosis, L. bengalensi dominates upon the effect of coastal hypohaline waters in-flowed, showing the similarity to the dominant species in coastal ocean. |
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| Keywords: | Nansha Islands waters|pelagic amphipod|hyperiid|community structure|coastal waters|current|siphonophire |
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