Academic literature on the topic 'Nutrients in lagoons'

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Journal articles on the topic "Nutrients in lagoons"

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Zoidou, Maria, Nikolaos Kokkos, and Georgios Sylaios. "Dynamics of Water, Salt, and Nutrients Exchange at the Inlets of Three Coastal Lagoons." Journal of Marine Science and Engineering 10, no. 2 (February 2, 2022): 205. http://dx.doi.org/10.3390/jmse10020205.

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The intertidal patterns at the inlet of three coastal lagoons (Agiasma, Porto Lagos, and Xirolimni) in Northern Greece were investigated by combining in situ samplings and computational efforts. These lagoons are Mediterranean, microtidal coastal systems, connected with the adjacent open sea (Thracian Sea) through their inlet canals and are highly affected by the lagoon–sea exchange processes. Limited freshwater enters their basins, mostly due to precipitation and agricultural drainage. An intense monitoring program of water flow and quality at the mouth of the three lagoons was carried out, a
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Bleich, Monica Elisa, Roberto Moraes Lima Silveira, and Flávia Maria Barros Nogueira. "Limnological patterns in northern pantanal lagoons." Brazilian Archives of Biology and Technology 52, no. 3 (June 2009): 755–64. http://dx.doi.org/10.1590/s1516-89132009000300028.

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The aim of this work was to correlate the limnological patterns recorded among ten lagoons in the northern part of the Pantanal of Mato Grosso with some aspects of the lagoons related to their physical and biological characteristics. Some lagoon characteristics, such as connection with the river and the presence of floating macrophytes were important to group similar lagoons into categories. Attempts were also made to determine which kind of the nutrients could be limiting phytoplankton productivity in the lagoons of the northern Pantanal. Data was collected in nine lagoons during the flooding
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Tay, Collins, Ruby Asmah, and Charles A. Biney. "A comparative study of the pollution status of Sakumo II and Muni Lagoons in Ghana." Water Science and Technology 62, no. 5 (September 1, 2010): 1067–75. http://dx.doi.org/10.2166/wst.2010.359.

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The pollution status of Sakumo II and Muni Lagoons and Mamahuma and Gbagbla Ankonu feeder streams, which feed Sakumo II along the coast of Ghana, were assessed and compared. As expected of saline waters, pH values of both lagoons fell within a slightly neutral to saline range whilst, the feeder streams were moderately saline. Conductivity distribution also showed saline (>5.0 mS cm−1) characteristics of the lagoons, while, the feeder streams are brackish (1.5–5.0 mS cm−1). DO concentrations in both lagoons indicated a wide variation. Relatively high BOD and nutrients content of Sakumo I
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Li, R. H., S. M. Liu, Y. W. Li, G. L. Zhang, J. L. Ren, and J. Zhang. "Nutrient dynamics in tropical rivers, estuarine-lagoons, and coastal ecosystems along the eastern Hainan Island." Biogeosciences Discussions 10, no. 6 (June 5, 2013): 9091–147. http://dx.doi.org/10.5194/bgd-10-9091-2013.

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Abstract. Nutrient dynamics were studied along the eastern Hainan Island based on field observations during 2006–2009, to understand nutrient biogeochemical processes and to have an overview of human perturbations on coastal ecosystems in this tropical region. The concentrations of nutrients in the rivers had seasonal variations enriched with dissolved inorganic nitrogen (DIN). High riverine concentrations of nitrate were mainly originated from agricultural fertilizer input. The ratios of DIN : PO43− ranged from 37 to 1063, suggesting preferential PO43− relative to nitrogen in the rivers. The
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Painter, Kristin J., Robert B. Brua, John Spoelstra, Geoff Koehler, and Adam G. Yates. "Fate of bioavailable nutrients released to a stream during episodic effluent releases from a municipal wastewater treatment lagoon." Environmental Science: Processes & Impacts 22, no. 12 (2020): 2374–87. http://dx.doi.org/10.1039/d0em00315h.

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Fate of nutrients from episodic wastewater lagoon effluent release was studied. Quantity of labile P in pulses often exceeded uptake. Management of lagoons should thus be informed by stream processing.
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Li, R. H., S. M. Liu, Y. W. Li, G. L. Zhang, J. L. Ren, and J. Zhang. "Nutrient dynamics in tropical rivers, lagoons, and coastal ecosystems of eastern Hainan Island, South China Sea." Biogeosciences 11, no. 2 (January 30, 2014): 481–506. http://dx.doi.org/10.5194/bg-11-481-2014.

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Abstract. Nutrient dynamics based on field observations made along the eastern Hainan Island during the period 2006–2009 were investigated to understand nutrient biogeochemical processes, and to provide an overview of human perturbations of coastal ecosystems in this tropical region. The rivers showed seasonal variations in nutrient concentrations, with enrichment of dissolved inorganic nitrogen and dissolved silicate, and depletion of PO43−. High riverine concentrations of nitrate mainly originated from agricultural fertilizer inputs. The DIN : PO43− ratios ranged from 37 to 1063, suggesting
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Giraldo, E., and A. Garzón. "The potential for water hyacinth to improve the quality of Bogota River water in the Muña Reservoir: comparison with the performance of waste stabilization ponds." Water Science and Technology 45, no. 1 (January 1, 2002): 103–10. http://dx.doi.org/10.2166/wst.2002.0014.

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The potential application of Water Hyacinth (Eichhornia crassipes) in organic matter degradation, sedimentation, nutrient and heavy metal absorption and sulfur reduction in the Muña Reservoir has been tested in experimental lagoons. The lagoons were operated at hydraulic retention times (HRT) of 6, 9 and 15 days. One lagoon was covered with Water Hyacinth, which is naturally growing in the Muña Reservoir, while another lagoon was operated as a conventional oxidation pond. The Water Hyacinth lagoon had better removal efficiencies for almost all parameters measured: BOD5, total suspended solids,
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Henderson, Amy, Emek Kose, Allison Lewis, and Ellen R. Swanson. "Mathematical modeling of algal blooms due to swine CAFOs in Eastern North Carolina." Discrete & Continuous Dynamical Systems - S 15, no. 3 (2022): 555. http://dx.doi.org/10.3934/dcdss.2021151.

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<p style='text-indent:20px;'>Dramatic strides have been made in treating human waste to remove pathogens and excess nutrients before discharge into the environment, to the benefit of ground and surface water quality. Yet these advances have been undermined by the dramatic growth of Confined Animal Feeding Operations (CAFOs) which produce voluminous quantities of untreated waste. Industrial swine routinely produce waste streams similar to that of a municipality, yet these wastes are held in open-pit "lagoons" which are at risk of rupture or overflow. Eastern North Carolina is a coastal pl
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Furtado, André Luiz dos Santos, Peter Casper, and Francisco de Assis Esteves. "Methanogenesis in an impacted and two dystrophic coastal lagoons (Macaé, Brazil)." Brazilian Archives of Biology and Technology 45, no. 2 (June 2002): 195–202. http://dx.doi.org/10.1590/s1516-89132002000200011.

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This study investigated the methanogenic activity in sediment of the Imboacica (human impacted), Cabiúnas and Comprida coastal lagoons in Rio de Janeiro State (Brazil). Methane was not detected in water and sediment samples from the three lagoons. The measured nutrient concentrations in the pore-water indicated that methanogens activity was not limited by nutrients. Methanogenic activity was not detected under in vitro conditions, indicating that terminal organic carbon mineralisation via methanogenesis was negligible for the top 6 cm of sediment at the sampling time.
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Padedda, B. M., S. Pulina, P. Magni, N. Sechi, and A. Lugliè. "Phytoplankton dynamics in relation to environmental changes in a phytoplankton-dominated Mediterranean lagoon (Cabras Lagoon, Italy)." Advances in Oceanography and Limnology 3, no. 2 (September 4, 2012): 147. http://dx.doi.org/10.4081/aiol.2012.5331.

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In Mediterranean lagoons, macrophytes often surpass phytoplankton as the most important primary producers. Less frequently, phytoplankton dominates throughout the year, thus knowledge of its dynamics is relatively limited and scattered. In this study, we assessed over two years the dynamics of phytoplankton assemblages, including potential harmful algal species (HAS), in relation to environmental changes in the phytoplankton-dominated Cabras Lagoon (Sardinia, Italy). The lagoon was characterised by uniform spatial conditions, wide temporal variations in salinity (40 PSU) and high nutrient avai
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Dissertations / Theses on the topic "Nutrients in lagoons"

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Keogh, Andrew James, of Western Sydney Hawkesbury University, Faculty of Science and Technology, and School of Applied and Environmental Sciences. "Systems management of Glenbrook Lagoon, New South Wales." THESIS_FST_AES_Keogh_A.xml, 1996. http://handle.uws.edu.au:8081/1959.7/423.

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Glenbrook Lagoon, an 8 hectare lake receiving rainfall runoff from a residential catchment, is experiencing nutrient enrichment problems expressed as excessive aquatic plant presence. This study aims to assess the relative nutrient contribution of the total system compartments, including catchment loading, water column, aquatic plants and surface sediment. This information is utilised in the formulation of management strategies which may produce a sustainable nutrient reduction and general improvement in the system. The total nutrient content of the aquatic system was determined to be high in
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Badosa, i. Salvador Anna. "Limnological characteristics and zooplankton community structure of Mediterranean coastal lagoons undergoing restoration." Doctoral thesis, Universitat de Girona, 2007. http://hdl.handle.net/10803/7869.

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Entre 1999 i 2003 es va desenvolupar un projecte Life de restauració a la maresma de La Pletera, afectada per un pla urbanització, i a la llacuna del Ter Vell, amb un elevat grau d'eutròfia (aiguamolls del Baix Ter, NE Península Ibèrica). L'objectiu d'aquesta tesi és establir el funcionament d'ambdós ecosistemes, analitzar-ne la problemàtica ambiental i avaluar els efectes de la restauració. <br/>A la maresma de la Pletera, es va analitzar el paper de la hidrologia en la composició i dinàmica dels nutrients i del zooplàncton en cinc llacunes, tres de les quals havien estat creades dins el proj
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Carmo, Clovis Ferreira do. "Influência do aqüífero freático na dinâmica de nutrientes (nitrogênio e fósforo) em lagoas com diferentes características hidrodinâmicas." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-08042008-152521/.

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A zona de desembocadura do rio Paranapanema na Represa de Jurumirim é uma região de desaceleração da velocidade da correnteza associada a um grande número de ambientes aquáticos com diferentes características hidrodinâmicas. Com o objetivo de avaliar a influência do aqüífero freático superficial na dinâmica de nutrientes (nitrogênio, fósforo e os principais cátions), foram estudadas três lagoas marginais, com diferentes graus de conexão com o rio: 1) Lagoa do Coqueiral (LCQ), com elevada conectividade com o rio Paranapanema; 2) Lagoa do Camargo (LCM), com conexão permanente com o rio, mas com
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Giordano, Juliette Christina Poleto. "Nutrient Loading and System Response in the Coastal Lagoons of the Delmarva." W&M ScholarWorks, 2009. https://scholarworks.wm.edu/etd/1539617889.

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Delgado, Carlos Alexandre Romano. "Potencialidades da utilização de efluentes de lagoas de estabilização para irrigação em agricultura no Alentejo." Master's thesis, Universidade de Évora, 2002. http://hdl.handle.net/10174/15520.

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Nos últimos anos, tem-se verificado um crescente incremento na reutilização de água na agricultura, devido à crescente escassez dos recursos hídricos de boa qualidade e ao aumento do consumo de água. A poupança deste recurso através da reutilização, contribui para a poupança de água de boa qualidade e para o aproveitamento de efluentes tratados, permitindo que os nutrientes neles contidos sejam reciclados. Como caso de estudo, foram seleccionadas todas as ETAR urbanas com lagoas de estabilização que servem aglomerados com mais de 2000 habitantes em funcionamento no Alentejo e verificada a poss
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Stanhope, Jennifer Wu. "Relationships between Watershed Characteristics and Base Flow Nutrient Discharges to Eastern Shore Coastal Lagoons, Virginia." W&M ScholarWorks, 2003. https://scholarworks.wm.edu/etd/1539617803.

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Andrisoa, Aladin Danoary. "Ecological impacts of groundwater discharge to Mediterranean coastal lagoons." Thesis, Aix-Marseille, 2019. http://theses.univ-amu.fr.lama.univ-amu.fr/190326_ANDRISOA_564o889xp122jxhof868gdfl_TH.pdf.

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Bien que l’importance des eaux souterraines et des eaux porales (recirculation) en tant que voie d’apports de nutriments vers les systèmes côtiers soit de plus en plus reconnue, il y a encore peu d’information sur leur réel rôle écologique. Cette thèse vise à évaluer l’impact des flux d’eaux souterraines et du processus de recirculation au sein du sédiment sur le fonctionnement des écosystèmes lagunaires côtiers et sur leur vulnérabilité face aux impacts anthropiques et climatiques. Deux lagunes contrastées de la côte méditerranéenne française ont été étudiées (Etangs de La Palme et Salses-Leu
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Dunn, Ryan J. K. "Biogeochemical Processes of a Sub-tropical Coastal Lagoon (Coombabah Lake, Southern Moreton Bay, Australia): With Emphasis on Organic Matter and Nutrient Dynamics." Thesis, Griffith University, 2009. http://hdl.handle.net/10072/365282.

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Coombabah Lake is a sub-tropical, semi-urbanised, shallow lagoon in southern Moreton Bay (Australia), recognised nationally and internationally as an important conservation and habitat zone. However, significant increases in urban development have occurred within the lagoon catchment in recent times, raising concerns over the sustainability of the lagoon ecosystem. This is typical of many estuarine environments which are ecologically and economically important waterways that often become surrounded by urban development and therefore experience degradation of water and sediment quality. The pro
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Serpa, Dalila do Rosário Encarnação. "Macroalgal (Enteromorpha spp. and Ulva spp.) primary productivity in the Ria Formosa Lagoon." Master's thesis, Faculdade de Ciências e Tecnologia, 2005. http://hdl.handle.net/10362/12085.

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Kendrick, Martin. "Algal bioreactors for nutrient removal and biomass production during the tertiary treatment of domestic sewage." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/8944.

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This thesis covers work carried out on algae bioreactors as a tertiary treatment process for wastewater treatment. The process was primarily assessed by the removal of Phosphorus and Nitrogen as an alternative to chemical and bacterial removal. Algal bioreactors would have the added advantage of carbon sequestration and a by-product in the energy rich algal biomass that should be exploited in the existing AD capacity. Laboratory scale bioreactors were run (4.5-30L) using the secondary treated final effluent from the local Loughborough sewage works. In a preliminary series of experiments severa
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Books on the topic "Nutrients in lagoons"

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Martin, Jonathan B. Quantification of ground water discharge and nutrient loading to the Indian River Lagoon: Final report. Palatka, Fla: St. Johns River Water Management District, 2002.

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Sumner, D. M. Hydraulic characteristics and nutrient transport and transformation beneath a rapid infiltration basin, Reedy Creek Improvement District, Orange County, Florida. Tallahassee, Fla: U.S. Geological Survey, 1996.

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M, Gilliland Paul, and UK Marine SACs Project, eds. Investigating and managing water quality in saline lagoons: Based on a case study of nutrients in the Chesil and the Fleet European marine site. English Nature, 2000.

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Book chapters on the topic "Nutrients in lagoons"

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Lucena, Joan Ramon, Josep Hurtado, and Francisco A. Comín. "Nutrients related to the hydrologic regime in the coastal lagoons of Viladecans (NE Spain)." In Nutrients and Eutrophication in Estuaries and Coastal Waters, 413–22. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-2464-7_31.

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Herrera-Silveira, Jorge A., Israel Medina-Gomez, and Reyna Colli. "Trophic status based on nutrient concentration scales and primary producers community of tropical coastal lagoons influenced by groundwater discharges." In Nutrients and Eutrophication in Estuaries and Coastal Waters, 91–98. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-2464-7_7.

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Wilson, James G., Mary Brennan, and Anne Murray. "Particulate inputs to Dublin Bay and to the South Lagoon, Bull Island." In Nutrients and Eutrophication in Estuaries and Coastal Waters, 195–204. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-2464-7_16.

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Muduli, Pradipta R., Manas Barik, Prasannajit Acharya, Alaya T. Behera, and Ishan B. Sahoo. "Variability of Nutrients and Their Stoichiometry in Chilika Lagoon, India." In Coastal Ecosystems, 139–73. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-84255-0_7.

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Frascari, F., G. Matteucci, and P. Giordano. "Evaluation of a eutrophic coastal lagoon ecosystem from the study of bottom sediments." In Nutrients and Eutrophication in Estuaries and Coastal Waters, 387–401. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-2464-7_29.

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Viaroli, Pierluigi, Mariachiara Naldi, Cristina Bondavalli, and Silvano Bencivelli. "Growth of the seaweed Ulva rigida C. Agardh in relation to biomass densities, internal nutrient pools and external nutrient supply in the Sacca di Goro lagoon (Northern Italy)." In Coastal Lagoon Eutrophication and ANaerobic Processes (C.L.E.AN.), 93–103. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1744-6_8.

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Viaroli, Pierluigi, Marco Bartoli, Cristina Bondavalli, Robert R. Christian, Gianmarco Giordani, and Mariachiara Naldi. "Macrophyte communities and their impact on benthic fluxes of oxygen, sulphide and nutrients in shallow eutrophic environments." In Coastal Lagoon Eutrophication and ANaerobic Processes (C.L.E.AN.), 105–19. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1744-6_9.

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Niencheski, Luis Felipe, Maria Graça Baumgarten, Gilberto Fillmann, and Herbert L. Windom. "Nutrients and Suspended Matter Behaviour in the Patos Lagoon Estuary (Brazil)." In Estuaries of South America, 67–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60131-6_4.

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Wielgat, Magdalena. "Compilation of Nutrient Loads for the Szczecin Lagoon (Southern Baltic)." In Baltic Coastal Ecosystems, 75–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04769-9_7.

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Falcao, M., and C. Vale. "Nutrient Variability in a Shallow Coastal Lagoon (Ria Formosa, Portugal)." In Estuarine Water Quality Management, 321–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75413-5_47.

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Conference papers on the topic "Nutrients in lagoons"

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Aleksandrov, Sergey, Sergey Aleksandrov, Julia Gorbunova, and Julia Gorbunova. "CLIMATE CHANGE: HOW DOES THIS INFLUENCE ON ECOSYSTEM HEALTH IN THE LAGOON OF THE BALTIC SEA?" In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b93942cc882.47943475.

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Lagoons are one of the most vulnerable ecosystems to impacts of natural environmental and anthropogenic factors. The Curonian and Vistula Lagoons are one of the largest lagoons of Europe. The Curonian Lagoon is choke mostly freshwater, while the Vistula Lagoon is restricted brackish water. Hydrological, chemical and biological researches were carried out monthly since 1991 to 2014. Reductions of nutrients loading in 1990s did not result in improvement of the ecological situation. Hydrological and chemical parameters are the main factors that influence on the algal blooms and ecosystem health i
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Aleksandrov, Sergey, Sergey Aleksandrov, Julia Gorbunova, and Julia Gorbunova. "CLIMATE CHANGE: HOW DOES THIS INFLUENCE ON ECOSYSTEM HEALTH IN THE LAGOON OF THE BALTIC SEA?" In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4316a72251.

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Lagoons are one of the most vulnerable ecosystems to impacts of natural environmental and anthropogenic factors. The Curonian and Vistula Lagoons are one of the largest lagoons of Europe. The Curonian Lagoon is choke mostly freshwater, while the Vistula Lagoon is restricted brackish water. Hydrological, chemical and biological researches were carried out monthly since 1991 to 2014. Reductions of nutrients loading in 1990s did not result in improvement of the ecological situation. Hydrological and chemical parameters are the main factors that influence on the algal blooms and ecosystem health i
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Domnin, Dmitry, Dmitry Domnin, Boris Chubarenko, Boris Chubarenko, Rene Capell, and Rene Capell. "MATHEMATICAL MODELING OF NUTRIENT LOADING FROM SMALL CATCHMENTS OF THE VISTULA LAGOON." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b93dfde6248.02952871.

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Vistula Lagoon as a part of the coastal zone translates nutrient load from catchment to the Baltic Sea. Catchments of the Primorskaya River (small settlements, mostly agricultural area, 120 km2) and Banówka-Mamonovka River (transboundary catchment between Russia and Poland, relatively big settlements, food production enterprises, agricultural activity, 490 km2) were selected as test ones for the Vistula Lagoon catchment (23 870 km2). Assessment of the retention of total nitrogen and phosphorus in the catchment and the transformation of nutrient load from anthropogenic sources while passing the
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Domnin, Dmitry, Dmitry Domnin, Boris Chubarenko, Boris Chubarenko, Rene Capell, and Rene Capell. "MATHEMATICAL MODELING OF NUTRIENT LOADING FROM SMALL CATCHMENTS OF THE VISTULA LAGOON." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b431754b7a5.

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Vistula Lagoon as a part of the coastal zone translates nutrient load from catchment to the Baltic Sea. Catchments of the Primorskaya River (small settlements, mostly agricultural area, 120 km2) and Banówka-Mamonovka River (transboundary catchment between Russia and Poland, relatively big settlements, food production enterprises, agricultural activity, 490 km2) were selected as test ones for the Vistula Lagoon catchment (23 870 km2). Assessment of the retention of total nitrogen and phosphorus in the catchment and the transformation of nutrient load from anthropogenic sources while passing the
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Gorbunova, Julia, Julia Gorbunova, Boris Chubarenko, Boris Chubarenko, Dmitry Domnin, Dmitry Domnin, Jens Christian Refsgaard, and Jens Christian Refsgaard. "ASSESSMENT OF NUTRIENT LOAD ON THE PREGOLYA RIVER BASIN (VISTULA LAGOON CATCHMENT) FROM THE ANTHROPOGENIC SOURCES." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b94681d1a25.68574351.

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The catchment area of the Pregolya River is about 65% of the Vistula Lagoon drainage basin and occupied by Russia and Poland in approximately equal proportions. Nutrient load from the catchment largely controls the eutrophication processes of the lagoon ecosystem. Open statistical data (2011-2014) were used for evaluating the nutrient loads. At present, the nutrient load from the major anthropogenic sources (population, livestock, poultry and crop production) is 53,267 tons N/year and 16,424 tons P/year in the Pregolya River catchment. This results in loads of 23,032 tons N/year and 2,819 tons
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Gorbunova, Julia, Julia Gorbunova, Boris Chubarenko, Boris Chubarenko, Dmitry Domnin, Dmitry Domnin, Jens Christian Refsgaard, and Jens Christian Refsgaard. "ASSESSMENT OF NUTRIENT LOAD ON THE PREGOLYA RIVER BASIN (VISTULA LAGOON CATCHMENT) FROM THE ANTHROPOGENIC SOURCES." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4316662769.

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The catchment area of the Pregolya River is about 65% of the Vistula Lagoon drainage basin and occupied by Russia and Poland in approximately equal proportions. Nutrient load from the catchment largely controls the eutrophication processes of the lagoon ecosystem. Open statistical data (2011-2014) were used for evaluating the nutrient loads. At present, the nutrient load from the major anthropogenic sources (population, livestock, poultry and crop production) is 53,267 tons N/year and 16,424 tons P/year in the Pregolya River catchment. This results in loads of 23,032 tons N/year and 2,819 tons
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P.W. Westerman, J. Arogo Ogejo, G. L. Grabow, and M. E. Adcock. "Swine Anaerobic Lagoon Nutrient Concentration Variation with Season, Lagoon Level, and Rainfall." In 2006 Portland, Oregon, July 9-12, 2006. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.21144.

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Saqib Mukhtar, Jeffrey L. Ullman, Brent W. Auvermann, Sam E. Feagley, and Todd Carpenter. "Nutrient and Sludge Assessment of Dairy Lagoons in Central Texas." In 2001 Sacramento, CA July 29-August 1,2001. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2001. http://dx.doi.org/10.13031/2013.4129.

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Gunatilaka, Amara, Pompeo Moscetta, Luca Sanfilippo, Enrico Savino, Cristina Dell'Olivo, Francesca Scardia, Alessandro Gurato, and Jesus Cisneros-Aguirre. "Observations on continuous nutrient monitoring in Venice Lagoon." In OCEANS 2009. IEEE, 2009. http://dx.doi.org/10.23919/oceans.2009.5422371.

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DUBRA, Vytautas. "SOME PECULIARITIES OF SPATIAL DISTRIBUTION OF LAND-BASED INORGANIC NUTRIENTS IN THE COASTAL PART OF THE BALTIC SEA." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.070.

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Abstract:
The Baltic Sea is a semi-enclosed sea with remarkable cyclonic circulation. The most attention must be paid to the local-scale factors playing the significant role in the overall figures. Fresh water inflow takes the majority of the mass budget income thus enabling local streams. The bathymetry of the Lithuanian Baltic zone is lowering gradually towards the open sea and has no significant deeps or depths. As the little exception there is a deeper basin, which stretches from the Curonian Spit until it reaches the approaches of the Southern Gotland Deep. The long-term investigations of spatial s
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