Marine and Freshwater Research Marine and Freshwater Research Society
Advances in the aquatic sciences
RESEARCH ARTICLE

Inorganic nitrogen release from sediment slurry of riverine and estuarine ecosystems located at different river regimes

Bhanu Paudel A C , Paul A. Montagna B , Mark Besonen B and Leslie Adams B
+ Author Affiliations
- Author Affiliations

A Academy of Natural Sciences of Drexel University, 1900 Benjamin Franklin Parkway, Philadelphia, PA 19103, USA.

B Harte Research Institute for Gulf of Mexico Studies, Texas A&M University-Corpus Christi, 6300 Ocean Drive, Unit 5869, Corpus Christi, TX 78412, USA.

C Corresponding author. Email: bhanu.paudel@drexel.edu

Marine and Freshwater Research 68(7) 1282-1291 https://doi.org/10.1071/MF16260
Submitted: 21 July 2016  Accepted: 29 October 2016   Published: 22 December 2016

Abstract

The purpose of the present study was to compare the nature of dissolved inorganic nitrogen (DIN = ammonium (NH4+) and nitrite + nitrate (NO2+3 = (NO2 + NO3)) release from aerobic sediment slurry at two different hydrologic flow regimes. The watershed of the Guadalupe River–Estuary system receives more freshwater inflow than does the watershed of the Nueces River–Estuary system; thus, the Nueces Estuary is more saline than is the Guadalupe Estuary. Sediment samples were collected using cores, analysed for organic matter and grain size, and used to perform laboratory experiments to measure DIN release. During the experiments, DIN concentrations in overlying water were measured for 48 h in five different salinity treatments. Ammonium concentrations were higher in the Nueces River and Estuary treatments than in similarly treated samples from the Guadalupe River and Estuary. An increase in NO2+3 concentrations along salinity gradients of the Nueces Estuary treatments indicated favourable condition for nitrification. The Guadalupe River sediments that were not exposed to salinity had an increase in NH4+ concentration at 7.5 ppt. The different DIN release among salinity treatments indicated that hydrologic forcing on organic matter deposition and salinity have an important role on the retention and release of inorganic nitrogen at the sediment–water aerobic layers in rivers and estuaries.

Additional keywords: ammonium, estuaries, hydrologic flow, nitrate+nitrite, salinity.


References

Bernhard, A. E., Tucker, J., Giblin, A. E., and Stahl, D. A. (2007). Functionally distinct communities of ammonia-oxidizing bacteria along an estuarine salinity gradient. Environmental Microbiology 9, 1439–1447.
Functionally distinct communities of ammonia-oxidizing bacteria along an estuarine salinity gradient.CrossRef |

Bianchi, T. S. (2007). ‘Biogeochemistry of Estuaries.’ (Oxford University Press: New York, NY, USA.)

Brock, D. A. (2001). Nitrogen budget for low and high freshwater inflows, Nueces Estuary, Texas. 2001. Estuaries 24, 509–521.
Nitrogen budget for low and high freshwater inflows, Nueces Estuary, Texas. 2001.CrossRef |

Bureau of Reclamation (2000). Concluding report: Rincon Bayou demonstration project. Vol. II: findings. United States Department of Interior, Buerau of Reclamation, Oklahoma–Texas Area Office, Austin, TX, USA. Available at https://archive.org/details/rinconbayoudemon00unit [Verified April 2014].

Gardner, W. S., Seitzinger, S. P., and Malczyk, J. M. (1991). The effects of sea salts on the forms of nitrogen released from estuarine and freshwater sediments: does ion pairing affect ammonium flux? Estuaries 14, 157–166.
The effects of sea salts on the forms of nitrogen released from estuarine and freshwater sediments: does ion pairing affect ammonium flux?CrossRef |

Gardner, W. S., McCarthy, M. J., An, S., and Sobolev, D. (2006). Nitrogen fixation and dissimilatory nitrate reduction to ammonium (DNRA) support nitrogen dynamics in Texas estuaries. Limnology and Oceanography 51, 558–568.
Nitrogen fixation and dissimilatory nitrate reduction to ammonium (DNRA) support nitrogen dynamics in Texas estuaries.CrossRef |

Gardner, W. S., McCarthy, M. J., Carini, S. A., Souza, A. C., Lijun, H., McNeal, K. S., Puckett, M. K., and Pennington, J. (2009). Collection of intact sediment cores with overlying water to study nitrogen- and oxygen-dynamics in regions with seasonal hypoxia. Continental Shelf Research 29, 2207–2213.
Collection of intact sediment cores with overlying water to study nitrogen- and oxygen-dynamics in regions with seasonal hypoxia.CrossRef |

Giblin, A. E., Weston, N. B., Banta, G. T., Tucker, J., and Hopkinson, C. S. (2010). The effects of salinity on nitrogen losses from an oligohaline estuarine sediment. Estuaries and Coasts 33, 1054–1068.
The effects of salinity on nitrogen losses from an oligohaline estuarine sediment.CrossRef |

Herman, P. M. J., and Heip, C. H. R. (1999). Biogeochemistry of maximum turbidity zone of estuaries: some conclusions. Journal of Marine Systems 22, 89–104.
Biogeochemistry of maximum turbidity zone of estuaries: some conclusions.CrossRef |

Jin, X., Wang, S., Pang, Y., Zhao, H., and Zhou, X. (2005). The adsorption of phosphate on different trophic lake sediments. Colloids and Surfaces – A. Physicochemical and Engineering Aspects 254, 241–248.

Kemp, W. M., and Boynton, W. R. (1984). Spatial and temporal coupling of nutrient inputs to estuarine primary production: the role of particulate transport and decomposition. Bulletin of Marine Science 35, 522–535.

Kim, H.-C., and Montagna, P. A. (2012). Effects of climate-driven freshwater inflow variability on macrobenthic secondary production in Texas lagoonal estuaries: a modeling study. Ecological Modelling 235–236, 67–80.
Effects of climate-driven freshwater inflow variability on macrobenthic secondary production in Texas lagoonal estuaries: a modeling study.CrossRef |

Krauk, J. M., Villareal, T. A., Sohm, J. A., Montoya, J. P., and Capone, D. G. (2006). Plasticity of N : P ratio in laboratory and field populations of Trichodesmium spp. Aquatic Microbial Ecology 42, 243–253.
Plasticity of N : P ratio in laboratory and field populations of Trichodesmium spp.CrossRef |

Montagna, P. A., Palmer, T. A., and Pollack, J. B. (2013). ‘Hydrological Changes and Estuarine Dynamics.’ Briefs in Environmental Sciences, vol. 8. (Springer: New York, NY, USA.) 10.1007/978-1-4614-5833-3

Nixon, S. W. (1981). Remineralization and nutrient cycling in coastal marine ecosystems. In 'Estuaries and nutrients'. (Eds B. J. Nelson and L. E. Cronin.) pp. 111– 138. (Humana Press: Clifton, NJ, USA.)

Nowicki, B. L., and Nixon, S. W. (1985). Benthic nutrient remineralization in a coastal lagoon ecosystem. Estuaries 8, 182–190.
Benthic nutrient remineralization in a coastal lagoon ecosystem.CrossRef |

Paudel, B. (2014). Interaction between suspended sediments, nutrients and freshwater inflow in Texas estuaries. Ph.D. Thesis, Texas A&M University, Corpus Christi, TX, USA.

Paudel, B., and Montagna, P. A. (2014). Modeling inorganic nutrient distribution among hydrologic gradients using multivariate approaches. Ecological Informatics 24, 35–46.
Modeling inorganic nutrient distribution among hydrologic gradients using multivariate approaches.CrossRef |

Paudel, B., Montagna, P. A., and Adams, L. (2015). Variations in the release of silicate and orthophosphate along a salinity gradient: do sediment composition and physical forcing have roles? Estuarine, Coastal and Shelf Science 157, 42–50.
Variations in the release of silicate and orthophosphate along a salinity gradient: do sediment composition and physical forcing have roles?CrossRef |

Reddy, K. R., Patrick, W. H., and Broadbent, F. E. (1984). Nitrogen transformations and loss in flooded soils and sediments. CRC Critical Reviews in Environmental Control 13, 273–309.
Nitrogen transformations and loss in flooded soils and sediments.CrossRef |

Russell, M. J., and Montagna, P. A. (2007). Spatial and temporal variability and drivers of net ecosystem metabolism in Western Gulf of Mexico estuaries. Estuaries and Coasts 30, 137–153.
Spatial and temporal variability and drivers of net ecosystem metabolism in Western Gulf of Mexico estuaries.CrossRef |

Schumacher, B. A. (2002). Methods for the determination of total organic matter (TOC) in soils and sediment. Report#EMASC-001, USEPA Environment Science Division, National Exposure Research Laboratory, ERASC, USEPA, Las Vegas NV, USA. Available at http://bcodata.whoi.edu/LaurentianGreatLakes_Chemistry/bs116.pdf [Verified 15 December 2016].

Seitzinger, S. P., Gardner, W. S., and Spratt, A. K. (1991). The effect of salinity on ammonium sorption in aquatic sediments: Implications for benthic nutrient recycling. Estuaries 14, 167–174.
The effect of salinity on ammonium sorption in aquatic sediments: Implications for benthic nutrient recycling.CrossRef |

Twilley, R. R., Cowan, J., Miller-Way, T., Montagna, P. A., and Mortazavi, B. (1999). Benthic nutrient fluxes in selected estuaries in the Gulf of Mexico. In ‘Biogeochemistry of Gulf of Mexico Estuaries’. (Eds T. S. Bianchi, J. R. Pennock, and R. R. Twilley.) Vol. 57/58, pp. 163–209. (Wiley: New York, NY, USA.)



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