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Nitrogen uptake pot...
Nitrogen uptake potential under different temperature-salinity conditions: Implications for nitrogen cycling under climate change scenarios
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- Kumar, S. (författare)
- India
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- Bhavya, P. S. (författare)
- India
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- Ramesh, R. (författare)
- India
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- Gupta, G. V. M. (författare)
- India
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- Chiriboga, Fidel (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences,University of Gothenburg
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- Singh, A. (författare)
- India
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- Karunasagar, I. (författare)
- India
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- Rai, A. (författare)
- India
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- Rehnstam-Holm, A. S. (författare)
- Man and Biosphere Health (MABH)
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- Edler, L. (författare)
- WEAQ Lab
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- Godhe, Anna, 1967 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences,University of Gothenburg
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(creator_code:org_t)
- Elsevier BV, 2018
- 2018
- Engelska.
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Ingår i: Marine Environmental Research. - : Elsevier BV. - 0141-1136 .- 1879-0291. ; 141:October, s. 196-204
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- As projected by climate change models, increase in sea surface temperature and precipitation in the future may alter nutrient cycling in the coastal regions due to potential changes in phytoplankton community structure and their ability to assimilate nitrogen (N) and carbon (C). An experiment simulating different temperature and salinity conditions (28 degrees C-35 ambient conditions, 28 degrees C-31, 31 degrees C-35 and 31 degrees C-31) in mesocosms containing 1000 L of coastal water from the Arabian Sea was performed and N uptake rates were measured using N-15 tracer technique on 2nd, 5th, 7th and 10th day of the experiment. The results show that, under all conditions, the total N (NO3- + NH4+) uptake rates were lower in the beginning and on the final day of the tracer experiment, while it peaked during middle, consistent with chlorophyll a concentrations. Total N uptake rate was significantly lower (p = 0.003) under ambient temperature -lower salinity condition (28 degrees C-31) than the others. This indicates that lowering of salinity in coastal regions due to excessive rainfall in the future may affect the N uptake potential of the phytoplankton, which may change the regional C and N budget.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
Nyckelord
- Nitrogen
- Uptake
- Climate change
- Phytoplankton
- Mesocosm experiment
- harmful algal blooms
- arabian sea
- phytoplankton community
- marine-phytoplankton
- indian-ocean
- heterotrophic bacteria
- southwest
- monsoon
- nitrate uptake
- f-ratio
- assimilation
- Environmental Sciences & Ecology
- Marine & Freshwater Biology
- Toxicology
- allister cd
- 1961
- limnology and oceanography
- v6
- p237
- carthy jj
- 1977
- limnology and oceanography
- v22
- p996
- ates of america
- v105
- p6668
- carthy jj
- 1972
- limnology and oceanography
- v17
- p371
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
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Kumar, S.
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Bhavya, P. S.
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Ramesh, R.
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Gupta, G. V. M.
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Chiriboga, Fidel
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Singh, A.
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visa fler...
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Karunasagar, I.
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Rai, A.
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Rehnstam-Holm, A ...
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Edler, L.
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Godhe, Anna, 196 ...
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Miljövetenskap
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Oceanografi hydr ...
- Artiklar i publikationen
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Marine Environme ...
- Av lärosätet
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Göteborgs universitet
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Högskolan Kristianstad