张亚南^1,2,3,,
向荣^1,3,,,
唐灵刚^1,2,3,
梁诗茵^1,2,3
1. 中国科学院南海海洋研究所, 中国科学院边缘海与大洋地质重点实验室, 广东 广州 510301
2. 中国科学院大学, 地球与行星科学学院, 北京 100049
3. 中国科学院南海生态环境工程创新研究院, 广东 广州 510301

基金项目: 中国科学院南海生态环境工程创新研究院创新发展基金项目（批准号：ISEE2018PY02）、国家自然科学基金项目（批准号：41476040和91228207）和中国科学院（A类）战略性先导科技专项项目（批准号：XDA11030104）共同资助


详细信息

作者简介: 张亚南, 男, 26岁, 硕士研究生, 海洋沉积与古环境研究, E-mail:yananzhang@scsio.ac.cn

通讯作者: 向荣, E-mail:rxiang@scsio.ac.cn

中图分类号: P722.7;Q915.811⁺.1

收稿日期:2019-12-08
修回日期:2020-03-03
刊出日期:2020-05-30

Vertical distribution of planktonic foraminifera in the southern South China Sea in the summer, 2007

Zhang Yanan^1,2,3,,
Xiang Rong^1,3,,,
Tang Linggang^1,2,3,
Liang Shiyin^1,2,3
1. Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, Guangdong
2. School of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049
3. Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, Guangdong


More Information

Corresponding author: Xiang Rong,E-mail:rxiang@scsio.ac.cn

MSC: P722.7;Q915.811⁺.1

--> Received Date: 08 December 2019
Revised Date: 03 March 2020
Publish Date: 30 May 2020


摘要
摘要:通过对2007年6月南海南部10个站位46个浮游生物拖网样品中的活体浮游有孔虫分析，对该区浮游有孔虫的垂直分布特征进行了探讨。共鉴定出17种浮游有孔虫，以Globigerinoides sacculifer占绝对优势，为典型热带暖水浮游有孔虫组合。浮游有孔虫丰度总体呈现西南低、东北高的分布特征，与混合层分布有较好的相关，可能与混合层深度影响下的水体生产力变化相关。此外，通过研究获取了主要浮游有孔虫属种垂直水深分布特征：其中浮游有孔虫Globigerinoides ruber平均生活水深最浅，G.ruber以形态种G.ruber sensu stricto（s.s.）为主，主要生活在0~40 m水层中；形态种G.ruber sensu lato（s.l.）相对较少，主要出现在40~60 m水层中。从现代生态的角度验证了前人提出的G.ruber两个形态种有明显生态差异的推测。G.sacculifer在20~60 m水层中繁盛，其中有袋类型相对较少，主要出现在40~80 m水层。Globigerinella aequilateralis主要生活在40~120 m水层。Neogloboquadrina dutertrei和Pulleniatina obliquiloculata表现出相似的生态特征，通常伴随出现，两者主要分布在40~80 m水层中。
关键词: 浮游拖网/
浮游有孔虫/
垂直分布/
南海南部

Abstract:Ecological distribution of planktonic foraminifera has a closely relationship with upper ocean environment. In order to clear the relationship between them, we analyze 46 samples of plankton tow from upper 250 m water depth in the southern South China Sea in June 2007. A total of 17 species of planktonic foraminifera are identified in this study, therein, Globigerinoides sacculifer is the dominant species. The abundance of planktonic foraminifera is generally low in southwest and high in northwest of study area, which may be related to the change of primary productivity caused by the mixed layer. The habitat depth of Globigerinoides ruber is shallower than that of G.sacculifer. G. ruber(s.s.)distributes at water depth of 0~40 m, and G.ruber(s.l.)mainly appears at water depth of 40~60 m, which support the speculation from sediment record that the two different morphotypes of G.ruber have apparent ecological difference. Besides, it is interesting that Globigerinella aequilateralis has an extensive living depth possible because that it is controlled by two mutually exclusive symbiotic algaes. Neogloboquadrina dutertrei and Pulleniatina obliquiloculata show similar ecological preferences, often appear at the same stations and water depths. And the distribution depths of maximum abundance of N.dutertrei and P. obliquiloculata are associated with thermocline depth. Globorotalia menardii show a high abundance in deep-water sites and is rare in continental shelf sites, which suggest that water depth also can affect the distribution of planktonic foraminifera.
Key words:plankton tow/
planktonic foraminifera/
vertical distribution/
southern South China Sea



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