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Artículos de revistas sobre el tema "Nutrients in lagoons"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 20 de febrero de 2023

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1

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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2

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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3

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 (&gt;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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Laut, Lazaro, Iara Clemente, and Wellen Louzada. "The influence of organic matter compounds on foraminiferal and ostracode assemblages: a case study from the Marica-Guarapina Lagoon System (Rio de Janeiro, Brazil)." Micropaleontology 67, no. 5 (2021): 447–58. http://dx.doi.org/10.47894/mpal.67.5.02.

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The excessive nutrients discharge from industrial and domestic sources have been contributing to the establishment of eutrophication conditions, particularly in chocked lagoons in the Neotropical region. This study evaluates the influence of organic matter on the foraminiferal and ostracode assemblages by combining biopolymers concentrations, sediment grain size, and physical and chemical parameters in the Marica-Guarapina Lagoon System (MGLS, Rio de Janeiro, Brazil). The physical-chemical parameters show a well-defined confinement gradient from the channel to the innermost region. The biopoly

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12

Mwachireya, S. A., A. M. Nzioka, and D. N. Mutiso. "Coral Recruit-Algae Interactions in Coral Reef Lagoons Are Mediated by Riverine Influences." International Journal of Ecology 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/1351854.

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Coral recruit and algae abundance and diversity were studied in Kenyan reefs to determine the influence of terrestrial discharge (nutrients and sediments) and the recovery potential of coral reefs after disturbances. Reefs affected by sediments and nutrients were found to have high total, turf, and macroalgae but reduced coralline algae abundance and coral recruit density. Interestingly, this response was found to be the greatest in reefs close to nutrient sources relative to “pristine” reefs and those affected simultaneously by sediments and nutrients. Further, enhanced levels of brown algae

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13

Attisano, Karina Kammer, Luis Felipe Hax Niencheski, Idel Cristiana Bigliardi Milani, Caroline dos Santos Machado, Márcio Raimundo Milani, Simoni Zarzur, and Carlos Francisco Ferreira de Andrade. "Evidences of continental groundwater inputs to the shelf zone in Albardão, RS, Brazil." Brazilian Journal of Oceanography 56, no. 3 (September 2008): 189–200. http://dx.doi.org/10.1590/s1679-87592008000300004.

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The southern coastal region of Brazil is highly productive and many of its oceanographic processes are still poorly understood due to a great number of forces, such as the continental input from the Plata River and Patos Lagoon, several distinct oceanic water masses, and a complex contribution from groundwater. The shelf near Albardão is highly rich in dissolved nutrients, particularly in the coastal zone. The narrow sandy barrier that separates the ocean from Mangueira Lagoon has led us to wonder about the possibility of groundwater, and if it might play a role in the productivity of the surr

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14

Arévalo, E., J. S. P. Ibánhez, S. Papaspyrou, and A. Nicolaidou. "The use of benthic metabolic processes as indicators for environmental quality assessment in coastal lagoons." Advances in Oceanography and Limnology 4, no. 2 (November 20, 2013): 194. http://dx.doi.org/10.4081/aiol.2013.5344.

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The review highlights the various methods used for assessing environmental quality in Mediterranean coastal lagoons, with emphasis on benthic parameters and processes. The application of indices based on benthic macrofauna, extensively used in coastal areas, may fail in discerning between natural and anthropogenic pressures over naturally stressed coastal lagoons. Sediment can play an important regulatory role over the overlying water composition through the storage capacity for organic matter and pollutants, regeneration of nutrients or its buffering capacity. Descriptive classical measuremen

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15

SFRISO, A., A. BUOSI, and A. A. SFRISO. "On the occurrence of Uronema marinum Womersley (Chaetophorales, Chlorophyta) in the north-western lagoons of the Adriatic Sea, Mediterranean Sea (Italy)." Mediterranean Marine Science 15, no. 1 (September 15, 2013): 101. http://dx.doi.org/10.12681/mms.517.

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We study the occurrence of the alien macroalga Uronema marinum in the lagoon of Venice, in the lagoons and ponds of the Po Delta and in Pialassa della Baiona in Emilia-Romagna. It was in summer 2012 that U. marinum was identified for the first time, even though it has been present at least since 2008. This species, originally described from South Australia and Western Australia and probably imported with the Manila clam Tapes philippinarum, is prevalently associated with thalli of another introduced species, Agardhiella subulata, and the invasive Gracilaria vermiculophylla, which also have a P

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16

Rodellas, Valentí, Thomas C. Stieglitz, Aladin Andrisoa, Peter G. Cook, Patrick Raimbault, Joseph J. Tamborski, Pieter van Beek, and Olivier Radakovitch. "Groundwater-driven nutrient inputs to coastal lagoons: The relevance of lagoon water recirculation as a conveyor of dissolved nutrients." Science of The Total Environment 642 (November 2018): 764–80. http://dx.doi.org/10.1016/j.scitotenv.2018.06.095.

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17

Morsy, Karim M., Amrit K. Mishra, and Mona M. Galal. "Water Quality Assessment of the Nile Delta Lagoons." Air, Soil and Water Research 13 (January 2020): 117862212096307. http://dx.doi.org/10.1177/1178622120963072.

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Nile Delta Lagoons have been formed 7000 years before the present. The lagoons were aqua-cultural and ecological keystones for the early Egyptian agricultural civilization. The water quality of Nile Delta Lagoons has been deteriorated with the economic development, population rapid increase, and the related industrialization, which exert high pressure on the surrounding environment. The 4 lagoons (1) Maryut, (2) Edku, (3) Burullus, and (4) Manzala are large is surface area, shallow in depth and located on the Nile Delta that receive great amounts of agricultural drainage, sewage, and industria

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18

González-De Zayas, Roberto, Martin Merino-Ibarra, Patricia M. Valdespino-Castillo, Yunier Olivera, and Sergio F. Castillo-Sandoval. "Coexisting ecosystem states in a tropical coastal lagoon under progressive eutrophication in the northern Cuban keys." Scientia Marina 82, no. 3 (October 9, 2018): 139. http://dx.doi.org/10.3989/scimar.04682.22a.

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Through a nested suite of methods here we contrast the coexistence of different ecosystem states in a tropical coastal lagoon, the Laguna Larga, with increasing eutrophication stress between 2007 and 2009. Water temperature averaged 27.4°C in the lagoon and showed a slight positive trend during the study period. Salinity averaged 35.0±6.2, exhibiting high spatial and temporal variability, and also a slight positive trend in time. In contrast, dissolved oxygen showed a substantial decreasing trend (–0.83 ml L–1 y–1; –13.3% y–1) over the period, while nutrients increased dramatically, particular

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19

Herrera-Silveira, Jorge A., and Javier Ramírez-Ramírez. "Salinity and nutrients in the coastal lagoons of Yucatan, Mexico." SIL Proceedings, 1922-2010 26, no. 3 (March 1998): 1473–78. http://dx.doi.org/10.1080/03680770.1995.11900971.

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20

Knapp, Melissa A., Naomi Geeraert, Kiho Kim, and Karen L. Knee. "Submarine Groundwater Discharge (SGD) to Coastal Waters of Saipan (Commonwealth of the Northern Mariana Islands, USA): Implications for Nitrogen Sources, Transport and Ecological Effects." Water 12, no. 11 (October 28, 2020): 3029. http://dx.doi.org/10.3390/w12113029.

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Seagrass meadows and coral reefs along the coast of Saipan, a US commonwealth in the Northern Pacific, have been declining since the 1940s, possibly due to nutrient loading. This study investigated whether submarine groundwater discharge (SGD) contributes to nutrient loading and supports primary production on Saipan’s coast. SGD can be an important source of freshwater, nutrients, and other pollutants to coastal waters, especially in oceanic islands without well-developed stream systems. Ra and Rn isotopes were used as natural tracers of SGD. Nitrate, phosphate, and ammonium concentrations, an

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21

Zhai, W. D., and X. L. Yan. "Coupling the chemical dynamics of carbonate and dissolved inorganic nitrogen systems in the eutrophic and turbid inner Changjiang (Yangtze River) Estuary." Biogeosciences Discussions 12, no. 8 (April 30, 2015): 6405–43. http://dx.doi.org/10.5194/bgd-12-6405-2015.

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Abstract. To better understand biogeochemical processes controlling CO2 dynamics in those eutrophic large-river estuaries and coastal lagoons, we investigated surface water carbonate system, nutrients, and relevant hydrochemical parameters in the inner Changjiang (Yangtze River) Estuary, covering its channel-like South Branch and the lagoon-like North Branch, shortly after a spring-tide period in April 2010. In the North Branch, with a water residence time of more than 2 months, biogeochemical additions of ammonium (7.4 to 65.7 μmol kg−1) and alkalinity (196 to 695 μmol kg−1) were detected alo

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22

Dougherty, Brian, Myles Gray, Mark G. Johnson, and Markus Kleber. "Can Biochar Covers Reduce Emissions from Manure Lagoons While Capturing Nutrients?" Journal of Environmental Quality 46, no. 3 (May 2017): 659–66. http://dx.doi.org/10.2134/jeq2016.12.0478.

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23

Petry, Ana Cristina, Angelo Antonio Agostinho, and Luiz Carlos Gomes. "Fish assemblages of tropical floodplain lagoons: exploring the role of connectivity in a dry year." Neotropical Ichthyology 1, no. 2 (December 2003): 111–19. http://dx.doi.org/10.1590/s1679-62252003000200005.

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Irregular rainfall and pronounced reductions of the hydrometric level in the year 2000 resulted in drastically altered hydrological connectivity of lentic environments in the upper Paraná River floodplain. The objective of the present work was to examine spatial and temporal patterns of fish assemblage attributes and structure in relation to limnological variables associated with hydrological connectivity. Fish were collected quarterly by seining in the marginal areas of 15 lagoons belonging to two biotopic categories (connected and disconnected). Variation in assemblage composition reflected

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24

Stabili, Loredana, Lucia Rizzo, Rosa Caprioli, Giorgio Alabiso, and Stefano Piraino. "How Much Recurrent Outbreaks of the Moon Jellyfish May Impact the Dynamics of Bacterial Assemblages in Coastal Lagoons?" Water 14, no. 23 (December 1, 2022): 3908. http://dx.doi.org/10.3390/w14233908.

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The moon jellyfish Aurelia coerulea (Scyphozoa) is one of the most common and largest jellyfish inhabiting coastal lagoons, confined bays, and marinas of temperate and subtropical coastal waters. The annual population dynamics of A. coerulea along with some bacterial parameters (bacterial size and biomass, total coliforms, faecal coliforms, intestinal enterococci, culturable Vibrio spp., and culturable bacteria at 37 °C), sea surface temperature (SST), salinity, and an array of nutrients (ammonia, nitrites, nitrates, phosphates, silicates, total nitrogen, and total phosphorus) were assessed in

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25

EL-RAVIS, OSMAN. "Environmental Conditions of Two Red Sea Coastal Lagoons in Jeddah. 2 -Nutrients." Journal of King Abdulaziz University-Marine Sciences 9, no. 1 (1998): 49–59. http://dx.doi.org/10.4197/mar.9-1.4.

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26

Nixon, Scott W., Betty A. Buckley, S. L. Granger, M. Entsua-Mensah, O. Ansa-Asare, M. J. White, Richard A. McKinney, and E. Mensah. "ANTHROPOGENIC ENRICHMENT AND NUTRIENTS IN SOME TROPICAL LAGOONS OF GHANA, WEST AFRICA." Ecological Applications 17, sp5 (July 2007): S144—S164. http://dx.doi.org/10.1890/05-0684.1.

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27

Cerda, Mauricio, Conceição Denise Nunes-Barboza, Camila Nunes Scali-Carvalho, Kelly De Andrade-Jandre, and Aguinaldo-Nepomuceno Marques Jr. "Nutrient budgets in the Piratininga-Itaipu lagoon system (southeastern Brazil): effects of sea-exchange management." Latin American Journal of Aquatic Research 41, no. 2 (May 2, 2017): 226–38. http://dx.doi.org/10.3856/vol41-issue2-fulltext-3.

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The Piratininga-Itaipu Lagoon System and its drainage basin, located on the southeastern coast of Brazil, Niterói (RJ), has been the target of an intense process of urbanization over the last four decades. As a result of this process, both the lagoon and the adjacent sea area have shown signs of eutrophication due to the release of large quantities of domestic sewage semi (or not) treated. In an attempt to minimize these effects, in 2008 the government re-established a connection between the Piratininga lagoon and the sea. To evaluate changes and variations in the balance of dissolved inorgani

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28

Mardochee Ephraim, Achoh, Agadjihouede Hyppolite, Gangbe Luc, Aizonou Romaric, Ahouansou Montcho Simon, and Chikou Antoine. "ESTIMATION OF PHOSPHORUS AND NITROGEN RELEASED BY THE BREEDING OF OREOCHROMIS NILOTICUS IN CAGES IN THE TOHO AND TODOUGBA LAGOONS(SOUTHER BENIN) BETWEEN 2017 AND 2020." International Journal of Advanced Research 9, no. 11 (November 30, 2021): 422–30. http://dx.doi.org/10.21474/ijar01/13759.

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The present study aim to estimate the ratio of aquaculture in the phosphorus and nitrogen concentrations determined in the Toho - Todougba lagoons. For this purpose, the two lagoons were subdivided into 7 stations for the determination of phosphorus and nitrogen concentrations in the water column. Production data from 2017 to 2019 were collected from the Direction of the Ficheries Production and from the literature. Data for 2020 were collected directly from fish farmers. Annual tilapia production was estimated by year and the amounts of phosphorus and nitrogen released from aquaculture are de

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Olguín, Eugenia J., and Gloria Sánchez-Galván. "Aquatic phytoremediation: Novel insights in tropical and subtropical regions." Pure and Applied Chemistry 82, no. 1 (January 3, 2010): 27–38. http://dx.doi.org/10.1351/pac-con-09-02-13.

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An overview of the state of the art in phytofiltration of nutrients and heavy metals (HMs) from wastewaters using tropical and subtropical plants in constructed wetlands (CWs) and lagoons is presented. Various mechanisms to remove these pollutants are discussed, in regard to three different types of systems: surface flow constructed wetlands (SFCWs), subsurface flow constructed wetlands (SSFCWs), and lagoons with floating plants. Only recent reports at laboratory, pilot and full scale, especially in tropical regions, are discussed. Most of the experiences around the world have shown that these

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Matias, Tális Pereira, Vívian Ariane De Oliveira Costal, Carmino Hayashi, Adriana Maria Imperador, and Luciana Botezelli. "LIMNOLOGICAL PROCESSES OF FACULTATIVE STABILIZATION LAGOONS IN THE TREATMENT OF LIQUID EFFLUENTS." Revista EVS - Revista de Ciências Ambientais e Saúde 47, no. 1 (December 21, 2020): 8675. http://dx.doi.org/10.18224/evs.v47i1.8675.

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Objective: To evaluate some of the main limnological aspects and discuss the relevance of effluent treatment efficacy by the FLs treatment system and provide fundamental information for technicians and environmental managers to make decisions about this type of treatment. Methods: The literature review was used as a methodology, specifically through scientific publications from 2016 to June 2020 on FL and limnology, applied in tropical climates. We selected articles written in Portuguese and English, and we chose to search in free terms, thus promoting a greater number of references on FLs and

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Freire, Rogério Herlon Furtado, Roseli Frederigi Benassi, Maria do Carmo Calijuri, and Aline Alves Sanchez. "Influence of water fluctuations on the limnological characteristics of two floodplain lagoons (Ribeira do Iguape Valley, state of São Paulo, Brazil)." Acta Limnologica Brasiliensia 27, no. 4 (December 2015): 431–40. http://dx.doi.org/10.1590/s2179-975x7613.

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Abstract Aim: Current study assessed the influence of hydrometric levels on the limnological characteristics of two river floodplain systems in the Ribeira do Iguape Basin (state of São Paulo, Brazil). Methods: Rainfall data were collected dailyfrom an automatic weather station in Jacupiranga SP Brazil and daily hydrometric level records were obtained from automatic linigraphs installed on the two adjacent rivers. Moreover, pH, electrical conductivity and dissolved oxygen were measured by a multiparametric probe. Water samples were collected to analyze nitrate, ammoniac nitrogen, total nitroge

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Carstensen, Jacob, Daniel J. Conley, Elin Almroth-Rosell, Eero Asmala, Erik Bonsdorff, Vivi Fleming-Lehtinen, Bo G. Gustafsson, et al. "Factors regulating the coastal nutrient filter in the Baltic Sea." Ambio 49, no. 6 (November 9, 2019): 1194–210. http://dx.doi.org/10.1007/s13280-019-01282-y.

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Abstract The coastal zone of the Baltic Sea is diverse with strong regional differences in the physico-chemical setting. This diversity is also reflected in the importance of different biogeochemical processes altering nutrient and organic matter fluxes on the passage from land to sea. This review investigates the most important processes for removal of nutrients and organic matter, and the factors that regulate the efficiency of the coastal filter. Nitrogen removal through denitrification is high in lagoons receiving large inputs of nitrate and organic matter. Phosphorus burial is high in arc

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Taylor, D. I., S. W. Nixon, S. L. Granger, and B. A. Buckley. "Impacts of different forms of nutrients on the roles of coastal lagoons as nutrient sources or sinks — A mesocosm study." Ophelia 42, no. 1 (September 1995): 353–70. http://dx.doi.org/10.1080/00785326.1995.10431513.

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Bocodaho, O. B. M. Lucinde, Waris Kéwouyèmi Chouti, Comlan Achille Dedjiho, and Daouda Mama. "Evaluation de l’état trophique des eaux du complexe lagunaire côtier du Sud-Ouest Bénin en période de hautes eaux (de Togbin à l’Embouchure Mono)." International Journal of Biological and Chemical Sciences 14, no. 7 (December 7, 2020): 2618–28. http://dx.doi.org/10.4314/ijbcs.v14i7.20.

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Les lagunes servent de tanières pour un grand nombre d’espèces aquatiques et constituent de ce fait des richesses à entretenir. Malheureusement, la lagune côtière du Bénin fait face à un déséquilibre écologique qui se manifeste par une croissance excessive des végétaux aquatiques. En vue de caractériser l’état trophique de la lagune, une campagne d’échantillonnage a été effectuée en période de hautes eaux sur onze points représentatifs. La méthodologie de dosage au spectrophotomètre a été adoptée pour mettre en évidence les paramètres de diagnostic de pollution. Les analyses signalent de forte

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Mwachireya, Shaaban A., Tim R. McClanahan, Isabelle M. Cote, and Brian E. Hartwick. "Increased Terrestrial Perturbations Modify Skeletal Properties and Mechanical Strength of Hard Corals." Environment and Natural Resources Research 6, no. 4 (November 30, 2016): 153. http://dx.doi.org/10.5539/enrr.v6n4p153.

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Skeleton properties determine coral survival by influencing the range of hydraulic conditions colonies can withstand, selection of suitable habitat, ability to compete for space and light, repair damage and the overall fitness and ecological success of scleractinian corals. Skeletal properties of 16 coral species comprising 3 growth forms collected from Kenyan coral reef lagoons were investigated and found to vary considerably not only between species but between reefs as well, with corals exposed to both sediment and nutrients showing consistent lower skeleton density and strength but high po

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Thebaldi, M. S., A. V. Silva, N. M. S. Vilela, B. P. Leal, I. C. Borges, I. P. Martins, and L. R. Fernandes. "CONCENTRAÇÃO DE NUTRIENTES NA ÁGUA DE DUAS LAGOAS URBANAS DO MUNICÍPIO DE FORMIGA / NUTRIENTS CONCENTRATION ON THE WATER OF TWO URBAN LAGOONS FO FORMIGA CITY - MG." Revista Brasileira de Engenharia de Biossistemas 11, no. 2 (June 30, 2017): 172. http://dx.doi.org/10.18011/bioeng2017v11n2p172-184.

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Zink, Klaus-Gerhard, André L. S. Furtado, Peter Casper, and Lorenz Schwark. "Organic matter composition in the sediment of three Brazilian coastal lagoons: district of Macaé, Rio de Janeiro (Brazil)." Anais da Academia Brasileira de Ciências 76, no. 1 (March 2004): 29–47. http://dx.doi.org/10.1590/s0001-37652004000100004.

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Freshwater lagoons comprise important coastal ecosystems and natural buffers between urbanized land areas and open ocean in the Rio de Janeiro State, Brazil. Studies of sediment and water chemistry, zooplankton and bacterial communities to assess the extent of anthropogenic disturbance are available. Here we contribute with an organic-geochemical approach supplemented by some microbiological aspects to complete the characterization of these lagoonal ecosystems. Bulk organic matter and extractable lipids (aliphatic hydrocarbons, alcohols and fatty acids, sterols) were investigated from two loca

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Leruste, A., F. Guilhaumon, R. De Wit, N. Malet, Y. Collos, and B. Bec. "Phytoplankton strategies to exploit nutrients in coastal lagoons with different eutrophication status during re-oligotrophication." Aquatic Microbial Ecology 83, no. 2 (July 25, 2019): 131–46. http://dx.doi.org/10.3354/ame01906.

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39

Velez, Maria, Daniel Conde, Juan Lozoya, James Rusak, Felipe García-Rodríguez, Carina Seitz, Thomas Harmon, Gerardo Perillo, Jaime Escobar, and Sandra Vilardy. "Paleoenvironmental Reconstructions Improve Ecosystem Services Risk Assessment: Case Studies from Two Coastal Lagoons in South America." Water 10, no. 10 (September 28, 2018): 1350. http://dx.doi.org/10.3390/w10101350.

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Paleoenvironmental reconstructions are increasingly being used in conservation biology, ecosystem management, and evaluations of ecosystem services (ES), but their potential to contribute to the ES risk assessment process has not been explored. We propose that the long-term history of the ecosystem provides valuable information that augments and strengthens an ES risk assessment and that it should be considered routinely when undertaking risk assessments. We adjusted a standard ecosystem-based risk management (EBRM) protocol to include paleoenvironmental data, and tested the modified approach

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Pradhan, S., R. N. Samal, S. B. Choudhury, and P. K. Mohanty. "HYDRODYNAMIC AND COHESIVE SEDIMENT TRANSPORT MODELING IN CHILIKA LAGOON." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-5 (November 15, 2018): 141–49. http://dx.doi.org/10.5194/isprs-annals-iv-5-141-2018.

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<p><strong>Abstract.</strong> Chilika lagoon, one of the largest brackish water lagoons in Asia located along the east coast of India. The rivers draining into the lagoon carry about 13 million tonnes of sediments annually. Because of the cohesiveness properties of the fine sediments, nutrients, heavy metals and other polluted substances tend to bind to the sediment’s surface. Consequently, pollutants can be concentrated in the inlets/estuaries, thus being of great environmental interest. In addition, the mudflats occurring are important biotopes for a large number of micro-

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Bozic, M., G. Nikolic, Z. Rudic, V. Raicevic, and B. Lalevic. "Constructed wetlands as an alternative restoration measure for shallow lakes." Water Science and Technology 68, no. 7 (October 1, 2013): 1672–78. http://dx.doi.org/10.2166/wst.2013.412.

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This paper deals with the consequences of cultural eutrophication and unconventional solutions for shallow lake restoration. Cultural eutrophication is the primary problem that affects especially shallow lakes, due to their physical characteristics (e.g. shallow depth, lack of stratification). Palic Lake, a very shallow Pannonian lake, received treated municipal wastewaters coming from the lagoons of a wastewater treatment plant. The sewage discharge mainly increased the nutrient load to the lake in the last decades. The lake sustainability is affected by inappropriate quality of water that fl

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Battista, Nicholas A., Julia E. Samson, Shilpa Khatri, and Laura A. Miller. "Under the sea: Pulsing corals in ambient flow." Texts in Biomathematics 1 (December 6, 2017): 22. http://dx.doi.org/10.11145/texts.2017.11.197.

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While many organisms filter feed and exchange heat or nutrients in flow, few benthic organisms also actively pulse to enhance feeding and exchange. One example is the pulsing soft coral (Alcyonacea: Xeniidae). Pulsing corals live in colonies, where each polyp actively pulses through contraction and relaxation of their tentacles. The pulses are typically out of phase and without a clear pattern. These corals live in lagoons and bays found in the Red Sea and Indian Ocean where they at times experience strong ambient flows. In this paper, 3D fluid-structure interaction simulations are used to qua

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Raper, W. G., and J. M. Green. "Simple process for nutrient removal from food processing effluents." Water Science and Technology 43, no. 3 (February 1, 2001): 123–30. http://dx.doi.org/10.2166/wst.2001.0127.

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Food processing effluents often contain high levels of nutrients, particularly N. Conventionally, anaerobic ponds are used to purify these effluents in Australia, giving cost-effective removal of BOD but little nutrient removal. It has become apparent that disposal by irrigation as presently practised normally exceeds sustainable N application rates, thus reduction of nutrient levels before irrigation is becoming mandatory. Meatworks effluent is often discharged to country town sewers, frequently accounting for 50-75% of the nutrient load. Meatworks effluents contain 1,000-4,000 mg/L BOD, 200-

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Abril, Gwenaël, Luiz C. Cotovicz Jr., Aguinaldo Nepomuceno, Thais Erbas, Suzan Costa, Vinicius V. Ramos, Gleyci Moser, et al. "SPREADING EUTROPHICATION AND CHANGING CO2 FLUXES IN THE TROPICAL COASTAL OCEAN: A FEW LESSONS FROM RIO DE JANEIRO." Arquivos de Ciências do Mar 55, Especial (March 21, 2022): 461–76. http://dx.doi.org/10.32360/acmar.v55iespecial.78518.

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In Brazil and in many other tropical countries, large urban cities and populations are still growing on the coast and coverage in terms of sewage treatments is far from desirable. Cultural eutrophication is not solely a threat for the coastal ocean; it is now acting as one of its major biogeochemical and ecological driver. Along the littoral of the state of Rio de Janeiro, semi-enclosed marine bays and lagoons show clear spatial and temporal pattern of increasing concentrations of chlorophyll a (Chl a), organic carbon, and nutrients in their waters and sediments in urbanized regions. Acting as

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Bellehumeur, C., L. Vasseur, C. Ansseau, and B. Marcos. "Multielement Relationships Characterizing the Chemical Composition of Municipal Sewage Sludge in Southern Quebec." Water Quality Research Journal 32, no. 4 (November 1, 1997): 751–70. http://dx.doi.org/10.2166/wqrj.1997.041.

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Abstract Disposal of sewage sludge on agricultural or forest lands has been shown to be an economical means of sludge disposal which reduces the amount of waste going to landfills and returns nutrients to the soil. The heavy metal content of sludge generally depends on the composition of influents and on the treatment process. The present study considers the sludge chemical composition of 23 municipalities in southern Quebec and the heavy metal concentrations in their respective drinking water supplies. This study attempts to determine the main multielement relationships characterizing sludge

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Yavuzcan Yıldız, Hijran, and Serap Pulatsü. "Towards zero waste: Sustainable waste management in aquaculture." Ege Journal of Fisheries and Aquatic Sciences 39, no. 4 (December 15, 2022): 341–48. http://dx.doi.org/10.12714/egejfas.39.4.11.

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Increases in aquaculture production due to higher demand for aquatic foods result in an increase in the amount of aquaculture wastewater. This situation highlights the need for the effective treatment of wastewater in sustainable aquaculture. Today, instead of traditional physical and chemical methods in the treatment of wastewater originating from aquaculture, ecosystem-sensitive and by-product-oriented systems have begun to be adopted. The main principle of the zero-waste approach is the recycling of the nutrients in the wastewater to produce another food. In this new innovative approach, th

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Sepúlveda-Muñoz, Cristian A., Ignacio de Godos, and Raúl Muñoz. "Wastewater Treatment Using Photosynthetic Microorganisms." Symmetry 15, no. 2 (February 16, 2023): 525. http://dx.doi.org/10.3390/sym15020525.

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Wastewaters are mainly classified as domestic, industrial and agro-industrial based on their production source. Piggery wastewater (PWW) is a livestock wastewater characterized by its high concentrations of organic matter and ammonium, and by its odour nuisance. Traditionally, PWW has been treated in open anaerobic lagoons, anaerobic digesters and activated sludge systems, which exhibit high greenhouse gas emissions, a limited nutrients removal and a high energy consumption, respectively. Photosynthetic microorganisms can support a sustainable wastewater treatment in engineered photobioreactor

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Stefanova, Anastassi, Cornelia Hesse, Valentina Krysanova, and Martin Volk. "Assessment of Socio-Economic and Climate Change Impacts on Water Resources in Four European Lagoon Catchments." Environmental Management 64, no. 6 (November 8, 2019): 701–20. http://dx.doi.org/10.1007/s00267-019-01188-1.

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Abstract This study demonstrates the importance of considering potential land use and management changes in climate impact research. By taking into account possible trends of economic development and environmental awareness, we assess effects of global warming on water availability and quality in the catchments of four European lagoons: Ria de Aveiro (Portugal), Mar Menor (Spain), Vistula Lagoon (Poland and Russia), and Tyligulskyi Liman (Ukraine). Different setups of the process-based soil and water integrated model (SWIM), representing one reference and four socio-economic scenarios for each

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Brito-Espino, Saulo, Alejandro Ramos-Martín, Sebastian O. Pérez-Báez, Carlos Mendieta-Pino, and Federico Leon-Zerpa. "A Framework Based on Finite Element Method (FEM) for Modelling and Assessing the Affection of the Local Thermal Weather Factors on the Performance of Anaerobic Lagoons for the Natural Treatment of Swine Wastewater." Water 13, no. 7 (March 24, 2021): 882. http://dx.doi.org/10.3390/w13070882.

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Anaerobic lagoons are natural wastewater treatment systems suitable for swine farms in small communities due to its low operational and building costs, as well as for the environmental sustainability that these technologies enable. The local weather is one of the factors which greatly influences the efficiency of the organic matter degradation within anaerobic lagoons, since microbial growth is closely related to temperature. In this manuscript, we propose a mathematical model which involves the two-dimensional Stokes, advection–diffusion-reaction and heat transfer equations for an unstirred f

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Webster, Ian T., and Graham P. Harris. "Anthropogenic impacts on the ecosystems of coastal lagoons: modelling fundamental biogeochemical processes and management implications." Marine and Freshwater Research 55, no. 1 (2004): 67. http://dx.doi.org/10.1071/mf03068.

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This paper presents a biogeochemical model of a coastal lagoon intended to be representative of lagoons occurring along the south-east and south-west coasts of Australia. Many of these lagoons are threatened by increased nutrient loads because of land use change, by alterations to their freshwater inflows and by modification to their tidal flushing regimens. The model simulates the biogeochemical response of the lagoon to nutrient (nitrogen) loading and includes nutrient transformation processes in the sediments, as well as in the water column. The paper focuses on the response of primary prod

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