PMID- 26599140
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160603
LR  - 20190802
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 543
IP  - Pt A
DP  - 2016 Feb 1
TI  - Will enhanced turbulence in inland waters result in elevated production of 
      autochthonous dissolved organic matter?
PG  - 405-415
LID - S0048-9697(15)31032-9 [pii]
LID - 10.1016/j.scitotenv.2015.11.051 [doi]
AB  - Biological activity in lakes is strongly influenced by hydrodynamic conditions, 
      not least turbulence intensity; which increases the encounter rate between 
      plankter and nutrient patches. To investigate whether enhanced turbulence in 
      shallow and eutrophic lakes may result in elevated biological production of 
      autochthonous chromophoric dissolved organic matter (CDOM), a combination of 
      field campaigns and mesocosm experiments was used. Parallel factor analysis 
      identified seven components: four protein-like, one microbial humic-like and two 
      terrestrial humic-like components. During our field campaigns, elevated 
      production of autochthonous CDOM was recorded in open water with higher wind 
      speed and wave height than in inner bays, implying that elevated turbulence 
      resulted in increased production of autochthonous CDOM. Confirming the field 
      campaign results, in the mesocosm experiment enhanced turbulence resulted in a 
      remarkably higher microbial humic-like C1 and tryptophan-like C3 (p<0.01), 
      indicating that higher turbulence may have elevated the production of 
      autochthonous CDOM. This is consistent with the significantly higher mean 
      concentrations of chlorophyll-a (Chl-a) and dissolved organic carbon (DOC) and 
      the enhanced phytoplanktonic alkaline phosphatase activity (PAPA) recorded in the 
      experimental turbulence groups than in the control group (p<0.05). The C:N ratio 
      (from 3.34 to 25.72 with a mean of 13.13+/-4.08) for the mesocosm CDOM samples 
      further suggested their probable autochthonous origin. Our results have 
      implications for the understanding of CDOM cycling in shallow aquatic ecosystems 
      influenced by wind-induced waves, in which the enhanced turbulence associated 
      with extreme weather conditions may be further stimulated by the predicted global 
      climate change.
CI  - Copyright (c) 2015 Elsevier B.V. All rights reserved.
FAU - Zhou, Yongqiang
AU  - Zhou Y
AD  - Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake 
      Science and Environment, Nanjing Institute of Geography and Limnology, Chinese 
      Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of 
      Sciences, Beijing 100049, China; Sino-Danish Centre for Education and Research, 
      Beijing 100190, China.
FAU - Zhou, Jian
AU  - Zhou J
AD  - Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake 
      Science and Environment, Nanjing Institute of Geography and Limnology, Chinese 
      Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of 
      Sciences, Beijing 100049, China.
FAU - Jeppesen, Erik
AU  - Jeppesen E
AD  - Sino-Danish Centre for Education and Research, Beijing 100190, China; Department 
      of Bioscience and Arctic Research Centre, Aarhus University, Vejlsovej 25, 
      DK-8600 Silkeborg, Denmark.
FAU - Zhang, Yunlin
AU  - Zhang Y
AD  - Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake 
      Science and Environment, Nanjing Institute of Geography and Limnology, Chinese 
      Academy of Sciences, Nanjing 210008, China. Electronic address: 
      ylzhang@niglas.ac.cn.
FAU - Qin, Boqiang
AU  - Qin B
AD  - Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake 
      Science and Environment, Nanjing Institute of Geography and Limnology, Chinese 
      Academy of Sciences, Nanjing 210008, China. Electronic address: 
      qinbq@niglas.ac.cn.
FAU - Shi, Kun
AU  - Shi K
AD  - Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake 
      Science and Environment, Nanjing Institute of Geography and Limnology, Chinese 
      Academy of Sciences, Nanjing 210008, China.
FAU - Tang, Xiangming
AU  - Tang X
AD  - Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake 
      Science and Environment, Nanjing Institute of Geography and Limnology, Chinese 
      Academy of Sciences, Nanjing 210008, China.
FAU - Han, Xiaoxia
AU  - Han X
AD  - Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake 
      Science and Environment, Nanjing Institute of Geography and Limnology, Chinese 
      Academy of Sciences, Nanjing 210008, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20151118
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
OTO - NOTNLM
OT  - Autochthonous DOM
OT  - Chromophoric dissolved organic matter
OT  - Microbial degradation
OT  - Turbulence
EDAT- 2015/11/26 06:00
MHDA- 2015/11/26 06:01
CRDT- 2015/11/25 06:00
PHST- 2015/08/05 00:00 [received]
PHST- 2015/10/09 00:00 [revised]
PHST- 2015/11/09 00:00 [accepted]
PHST- 2015/11/25 06:00 [entrez]
PHST- 2015/11/26 06:00 [pubmed]
PHST- 2015/11/26 06:01 [medline]
AID - S0048-9697(15)31032-9 [pii]
AID - 10.1016/j.scitotenv.2015.11.051 [doi]
PST - ppublish
SO  - Sci Total Environ. 2016 Feb 1;543(Pt A):405-415. doi: 
      10.1016/j.scitotenv.2015.11.051. Epub 2015 Nov 18.