Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| 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
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| 2019-09-01 | |
| Source Publication | LIMNOLOGY AND OCEANOGRAPHY
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| ISSN | 0024-3590 |
| Volume | 64Issue:5Pages:2202-2219 |
| Corresponding Author | Huang, Bangqin(bqhuang@xmu.edu) |
| Abstract | 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. |
| DOI | 10.1002/lno.11179 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Marine & Freshwater Biology ; Oceanography |
| WOS Subject | Limnology ; Oceanography |
| WOS ID | WOS:000485001400026 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/162808 |
| Collection | 海洋环流与波动重点实验室 |
| Corresponding Author | Huang, Bangqin |
| Affiliation | 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 |
| Recommended Citation 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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| File Name/Size | DocType | Version | Access | License | ||
| 10.1002_lno.11179.pd（4615KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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