Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans
Picoplankton biomass and community structure in the subtropical and subarctic Pacific Oceans were investigated during November 2003, April-August 2005 and July-August 2005. The sampling covered the subarctic K2 station, the Western North Pacific subtropical gyre (WNPG1 and 2 stations) and the Easter...
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ftxiamenuniv:oai:dspace.xmu.edu.cn:2288/9177 2023-05-15T18:28:03+02:00 Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans Zhang, Yao 张瑶 Jiao, Nianzhi 焦念志 Hong, Ning 2008-07 https://doi.org/10.1016/.j.dsr2.2008.04.014 http://dspace.xmu.edu.cn/handle/2288/9177 en eng PERGAMON-ELSEVIER SCIENCE LTD DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2008,55(14-15):1605-1614 0967-0645 http://dx.doi.org/doi:10.1016/.j.dsr2.2008.04.014 http://dspace.xmu.edu.cn/handle/2288/9177 picoplankton autotroph heterotroph aerobic anoxygenic phototrophic bacteria (AAPB) subarctic ocean subtropical ocean Article 2008 ftxiamenuniv https://doi.org/10.1016/.j.dsr2.2008.04.014 2020-07-21T11:20:37Z Picoplankton biomass and community structure in the subtropical and subarctic Pacific Oceans were investigated during November 2003, April-August 2005 and July-August 2005. The sampling covered the subarctic K2 station, the Western North Pacific subtropical gyre (WNPG1 and 2 stations) and the Eastern North Pacific subtropical area (ENP1, 2, 3 and 4 stations). Distinct differences in community structure and autotrophic and heterotrophic picoplankton biomass were observed among the above provinces. In subtropical areas, the picoplankton community comprised Prochlorococcus, Synechococcus, picoeukaryotes and heterotrophic bacteria. While in the subarctic area (K2 station), Prochlorococcus were absent. Prochlorococcus were numerically dominant in the subtropical oceans, their abundance tended to decrease with increasing nutrient levels, which is the opposite of the other picoplankton populations. Although the aerobic anoxygenic phototrophic heterotrophic bacteria (AAPB). accounted for only a small proportion of total heterotrophic bacterial abundance, their potential contribution to carbon export may be important due to their larger cell size and higher cell turnover rates compared with other heterotrophic bacteria. Biomass contribution of the AAPB increased distinctly along the oligotrophic to relatively eutrophic gradient. Vertically, AAPB generally followed the phytoplankton except in the subtropical WNPG. Spatial variability of biomass in the autotrophic picoplankton was distinctly larger than that in the heterotrophic bacteria. Changes in the picoplankton community were more closely associated with latitude while nutrient availability was more important for differences in picoplankton biomass. The biomass of autotrophic picoplankton in the upper mixed layer, and also the depth attenuation, were higher in eutrophic relative to oligotrophic waters. Picoplankton seemed to be an important source of new organic carbon for higher trophic level organisms and for detritus production, especially in the oligotrophic subtropical gyre. (C) 2008 Elsevier Ltd. All rights reserved. NSFC [40632013, 40576063]; MOST [2005AA635240]; NKBRD [2007CB815904]; CFKSTI [704029] Article in Journal/Newspaper Subarctic Xiamen University Institutional Repository Pacific |
institution |
Open Polar |
collection |
Xiamen University Institutional Repository |
op_collection_id |
ftxiamenuniv |
language |
English |
topic |
picoplankton autotroph heterotroph aerobic anoxygenic phototrophic bacteria (AAPB) subarctic ocean subtropical ocean |
spellingShingle |
picoplankton autotroph heterotroph aerobic anoxygenic phototrophic bacteria (AAPB) subarctic ocean subtropical ocean Zhang, Yao 张瑶 Jiao, Nianzhi 焦念志 Hong, Ning Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans |
topic_facet |
picoplankton autotroph heterotroph aerobic anoxygenic phototrophic bacteria (AAPB) subarctic ocean subtropical ocean |
description |
Picoplankton biomass and community structure in the subtropical and subarctic Pacific Oceans were investigated during November 2003, April-August 2005 and July-August 2005. The sampling covered the subarctic K2 station, the Western North Pacific subtropical gyre (WNPG1 and 2 stations) and the Eastern North Pacific subtropical area (ENP1, 2, 3 and 4 stations). Distinct differences in community structure and autotrophic and heterotrophic picoplankton biomass were observed among the above provinces. In subtropical areas, the picoplankton community comprised Prochlorococcus, Synechococcus, picoeukaryotes and heterotrophic bacteria. While in the subarctic area (K2 station), Prochlorococcus were absent. Prochlorococcus were numerically dominant in the subtropical oceans, their abundance tended to decrease with increasing nutrient levels, which is the opposite of the other picoplankton populations. Although the aerobic anoxygenic phototrophic heterotrophic bacteria (AAPB). accounted for only a small proportion of total heterotrophic bacterial abundance, their potential contribution to carbon export may be important due to their larger cell size and higher cell turnover rates compared with other heterotrophic bacteria. Biomass contribution of the AAPB increased distinctly along the oligotrophic to relatively eutrophic gradient. Vertically, AAPB generally followed the phytoplankton except in the subtropical WNPG. Spatial variability of biomass in the autotrophic picoplankton was distinctly larger than that in the heterotrophic bacteria. Changes in the picoplankton community were more closely associated with latitude while nutrient availability was more important for differences in picoplankton biomass. The biomass of autotrophic picoplankton in the upper mixed layer, and also the depth attenuation, were higher in eutrophic relative to oligotrophic waters. Picoplankton seemed to be an important source of new organic carbon for higher trophic level organisms and for detritus production, especially in the oligotrophic subtropical gyre. (C) 2008 Elsevier Ltd. All rights reserved. NSFC [40632013, 40576063]; MOST [2005AA635240]; NKBRD [2007CB815904]; CFKSTI [704029] |
format |
Article in Journal/Newspaper |
author |
Zhang, Yao 张瑶 Jiao, Nianzhi 焦念志 Hong, Ning |
author_facet |
Zhang, Yao 张瑶 Jiao, Nianzhi 焦念志 Hong, Ning |
author_sort |
Zhang, Yao |
title |
Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans |
title_short |
Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans |
title_full |
Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans |
title_fullStr |
Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans |
title_full_unstemmed |
Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans |
title_sort |
comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2008 |
url |
https://doi.org/10.1016/.j.dsr2.2008.04.014 http://dspace.xmu.edu.cn/handle/2288/9177 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2008,55(14-15):1605-1614 0967-0645 http://dx.doi.org/doi:10.1016/.j.dsr2.2008.04.014 http://dspace.xmu.edu.cn/handle/2288/9177 |
op_doi |
https://doi.org/10.1016/.j.dsr2.2008.04.014 |
_version_ |
1766210384798154752 |