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Potential overestimation of community respiration in the western Pacific boundary ocean: What causes the putative net heterotrophy in oligotrophic systems?
Huang, Yibin1,2; Chen, Bingzhang3; Huang, Bangqin1,2; Zhou, Hui4,5,6,7; Yuan, Yongquan6,8,9
2019-09-01
发表期刊LIMNOLOGY AND OCEANOGRAPHY
ISSN0024-3590
卷号64期号:5页码:2202-2219
通讯作者Huang, Bangqin(bqhuang@xmu.edu)
摘要Microbial metabolism is of great importance in affecting the efficiency of biological pump and global carbon cycles. However, the metabolic state of the oligotrophic ocean, the largest biome on Earth, remains contentious. We examined the planktonic and bacterial metabolism using in vitro incubations along the western Pacific boundary during September and October 2016. The integrated gross primary production (GPP) of the photic zone exhibited higher values in the region of 2 degrees-8 degrees N along 130 degrees E and the western Luzon Strait, which is consistent with the regional variability of nutrients in the different ocean provinces. Spatially, the community respiration (CR) was less variable than the GPP and slightly exceeded the GPP at most of the sampling stations. Overall, the in vitro incubation results suggest a prevailing heterotrophic state in this region. A comparison of the metabolic rates from the in vitro incubations with recently published biogeochemical model results in the same region shows that our observed GPP values were close to those predicted by the model, but the measured CR was approximately 30% higher than the modeled values. We also found that most of the in vitro CR estimates were higher than the upper range of the empirical CR estimated from the sum of the contributions of the main trophic groups. Conversely, the estimates of the empirical CR support the rationality of the CR predicted by the biogeochemical model. In general, the results indicate that systematic net heterotrophy is more likely a result of the overestimation of CR measured by the light-dark bottle incubation experiments, although the exact cause of the methodological problem remains unknown.
DOI10.1002/lno.11179
收录类别SCI
语种英语
WOS研究方向Marine & Freshwater Biology ; Oceanography
WOS类目Limnology ; Oceanography
WOS记录号WOS:000485001400026
出版者WILEY
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/162808
专题海洋环流与波动重点实验室
通讯作者Huang, Bangqin
作者单位1.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Fujian, Peoples R China
2.Xiamen Univ, Fujian Prov Key Lab Coastal Ecol & Environm Studi, Xiamen, Fujian, Peoples R China
3.Univ Strathclyde, Dept Math & Stat, Glasgow, Lanark, Scotland
4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Shandong, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol, Qingdao, Shandong, Peoples R China
6.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Shandong, Peoples R China
7.Univ Chinese Acad Sci, Beijing, Peoples R China
8.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China
9.Pilot Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China
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GB/T 7714
Huang, Yibin,Chen, Bingzhang,Huang, Bangqin,et al. Potential overestimation of community respiration in the western Pacific boundary ocean: What causes the putative net heterotrophy in oligotrophic systems?[J]. LIMNOLOGY AND OCEANOGRAPHY,2019,64(5):2202-2219.
APA Huang, Yibin,Chen, Bingzhang,Huang, Bangqin,Zhou, Hui,&Yuan, Yongquan.(2019).Potential overestimation of community respiration in the western Pacific boundary ocean: What causes the putative net heterotrophy in oligotrophic systems?.LIMNOLOGY AND OCEANOGRAPHY,64(5),2202-2219.
MLA Huang, Yibin,et al."Potential overestimation of community respiration in the western Pacific boundary ocean: What causes the putative net heterotrophy in oligotrophic systems?".LIMNOLOGY AND OCEANOGRAPHY 64.5(2019):2202-2219.
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