IOCAS-IR  > 海洋环流与波动重点实验室
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
Source PublicationLIMNOLOGY AND OCEANOGRAPHY
ISSN0024-3590
Volume64Issue:5Pages:2202-2219
Corresponding AuthorHuang, Bangqin(bqhuang@xmu.edu)
AbstractMicrobial 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
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000485001400026
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/162808
Collection海洋环流与波动重点实验室
Corresponding AuthorHuang, Bangqin
Affiliation1.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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