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Dissertations / Theses on the topic 'Estuary pollution'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Ogilvie, Brett. "Nitrate reduction and nitrous oxide production in a eutrophic estuary." Thesis, University of Essex, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294676.

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2

Hoban, T. J. "Polycyclic aromatic hydrocarbons in the Severn Estuary." Thesis, University of South Wales, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305737.

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3

Robinson, A. D. "The Colne estuary as a source of N2O and NOx gases to the atmosphere." Thesis, University of Essex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307834.

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4

Yang, Meng. "Historical changes in heavy metals in the Yangtze Estuary." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ61961.pdf.

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5

Boyd, David Miller. "FRNA Coliphages as a Viral Indicator of Sewage Pollution in an Estuary." W&M ScholarWorks, 1990. https://scholarworks.wm.edu/etd/1539617616.

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6

Zoozi, Suha. "An evaluation of particulate phosphorus storage in an agricultural estuary." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/2774.

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Knowledge of fine sediment delivery (both timing and loading) is fundamental to the assessment of non-point source pollution in estuarine environments. This study comprised three key components that led to the development of a fine sediment and particulate associated phosphorus budget in a typical agricultural estuary. Firstly, to explore catchment inputs, turbidity and flow were monitored continuously upstream of the freshwater/saline interface on the main stem channel of the south Devon River Avon, which drains a medium sized agricultural catchment (area 340 km2), in southwest UK. Thirty-fiv

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7

Mills, David Kevin. "Productivity and distribution of benthic microalgae in the Forth estuary." Thesis, Heriot-Watt University, 1985. http://hdl.handle.net/10399/1649.

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8

Scrimshaw, Mark Dudley. "The significance of chlorinated micropollutants in sediments of Essex salt marshes and the River Thames estuary." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362543.

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9

Rodrigues, Ann Maria de Jesus. "Environmental status of a multiple use estuary, through the analysis of bethnic communities : the Sado estuary, Portugal." Thesis, University of Stirling, 1992. http://hdl.handle.net/1893/2597.

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Ihis work on the Sado outer estuary (western coast of Portugal) considers its bio-sedimentary characterization, and evaluates the prevailing hydrophysical and sedimentary environmental conditions. The quality status of the estuary is discussed. The thesis is based on the analysis of superficial sediments and benthic macrofauna collected from 133 sites, and on hydrodynamical data obtained from a mathematical model. The environmental variables considered were the superficial sediment temperature, granulometry and organic matter content, together with the water current velocities, flow and shear

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10

Vale, Jacqueline Anne. "Atmospheric deposition of heavy metals to the Severn Estuary." Thesis, University of Stirling, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294075.

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11

Crabb, Rebecca. "A dynamic game for managing a conservative pollutant in an estuary /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/6768.

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12

Emptage, Matthew Robert. "Radionuclide distribution in relation to sedimentary processes in the Esk estuary, UK." Thesis, Lancaster University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357310.

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13

Bryson, J. Glen. "Aspects of the ecology of the intertidal fish fauna of the Forth Estuary, Scotland." Thesis, Heriot-Watt University, 1997. http://hdl.handle.net/10399/664.

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14

Rees-Jones, Severine A. L. "An investigation of the environmental impact of a new waste water treatment scheme on the ecology of the Stour estuary, Kent." Thesis, University of Kent, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267404.

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15

Zinger, Irene. "Zooplankton community structure in Southampton Water and its potential response to estuary chronic oil pollution." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236395.

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16

Jemmett, Alan William Lancaster. "An investigation into the heavy metals, sediment and vegetation of a Mersey Estuary salt marsh." Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333688.

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17

Marshall, Shona. "The structure and functioning of the fish assemblage of the Humber Estuary, UK." Thesis, University of Hull, 1995. http://hydra.hull.ac.uk/resources/hull:3708.

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This study provides an assessment of the fish assemblage of the Humber estuary, using a quarterly sampling interval. Sampling 14 subtidal stations throughout the estuary, and two intertidal sites in the outer estuary, the principal aims of the study were to determine the structure and functioning of the assemblage and the environmental and biological factors influencing the fish distribution.

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18

Alharbi, Mohammed Musad Mohammed. "Spatial and temporal variations in trace metal concentrations in sediments, pore water of the Forth estuary, and their potential impact on water quality." Thesis, University of Stirling, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386611.

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The concentrations of trace metals: cadmium, copper, nickel, lead and mercury, in addition to aluminium, iron and manganese were determined in the sediments and pore water (except aluminium) of the Forth estuary. Organic matter (as loss on ignition), total organic carbon (TOe), total organic nitrogen (TON), particle size and redox potential were also determined in the sediments. In addition, chloride, sulphate, conductivity, alkalinity, pH, dissolved organic carbon, phosphate and nitrate were determined in the sediments pore water. Trace metals in the pore water were determined using a modifie

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19

Johnson, Kaitlin Marie. "EVALUATION OF THE ESTROGENIC AND OSMOREGULATORY IMPACTS OF EXPOSURE TO 4-NONYLPHENOL POLLUTION IN THE ESTUARINE ARROW GOBY, CLEVELANDIA IOS." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1636.

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Recent evidence indicates that some of California’s coastal estuaries are contaminated with the chemical 4-nonylphenol (4-NP). Tissue burdens of 4-NP detected in the intertidal arrow goby (Clevelandia ios) in California are among the highest recorded worldwide, however, it remains unknown whether these fish are impacted by this 4-NP contamination. 4-NP is an established endocrine disrupting compound with estrogenic properties that can alter reproductive function. Furthermore, evidence that estrogens can modulate iono- and osmo-regulatory function in fishes implies that estuarine fishes exposed

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20

Harvey, Alice Lindiwe. "An investigation of the pollution contribution of catchments surrounding the Knysna Estuary, with implications for stormwater management." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/31254.

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The Knysna Estuary is ranked highest in South Africa for conservation importance and is a haven for endemic marine species. The ecosystem services provided by the estuary include significant biodiversity value and amenity value for residents and tourists. The economy of Knysna is reliant on tourism, which in turn is dependent on ecosystem services. The health of the Knysna Estuary is currently threatened by poor water quality. If the water pollution can be addressed, ecosystems can be protected and significant social and economic costs of environmental degradation can be avoided. The pollution

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21

Manglallan, Eduardo P. "Water quality baseline study and non-point source pollution analysis on Waikele Stream, West Loch Estuary, Oahu, Hawaii." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/26334.

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22

Juza, Holly Kay. "Water Quality Model for South Slough, Coos Bay, Oregon." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/5046.

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The South Slough Estuary is located off Coos Bay along the southern coast of Oregon. It is divided into two channels that meet and continue to Coos Bay at the Charleston Harbor. There are six major contributing streams to South Slough. After rainfall events, the level of coliform bacteria in the slough increases because of stream bacteria loading. This is due to cattle grazing in the drainage areas, failed septic systems from private homes, and sewage sludge applied to the County landfill, which drains into the slough. The Oregon Health Division has enforced a Sanitation Management Plan for Co

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23

Turki, Adnan Jaman. "An investigation of metal partitioning and organic pollution in surface sediments from Tees Bay and the Tees Estuary, UK." Thesis, University of Newcastle Upon Tyne, 1998. http://hdl.handle.net/10443/416.

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Concern about the possible contamination by metals, hydrocarbons and PCBs of Tees Bay and the Tees estuary, and potential sources of such materials has led to this study of surficial sediments. Surface sediment samples were collected from the Tees estuary and Tees Bay and were analysed for grain size, organic carbon content, metals, hydrocarbons (aliphatic and polyaromatic) and polychiorinated biphenyls (PCB5). The Tees estuary sediments are largely organic-rich clayey-silts, while the Bay sediments are organic-poor sands. All of the metals measured (Cd, Co, Cr, Cu, Ni, Pb and Zn) have signifi

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24

Ghaderidosst, Joanna. "Site Study of Fibrous Sedimentsin Sandviken, ÅngermanälvenRiver Estuary, Sweden." Thesis, Uppsala universitet, Naturresurser och hållbar utveckling, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-418805.

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Pulp and paper industries in Sweden have since the end of the 19th century until late 70s been active in dumping wastewater into adjacent water bodies that have created fibrous sediments called fiberbank and fiber-rich sediment. Fiberbanks are large banks of predominantly organic material while fiber-rich sediment is fibrous sediment that has been mixed with bottom sediment. The fiberbanks comprise of high levels of processed wood fibres and contaminants such as heavy metals and persistent organic pollutants (POPs). It also produces carbon dioxide and methane gas by microbial activity and leav

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25

Hoare, Mary-Jo. "A comparison of the pollution record of South Merseyside from sediment cores taken from the estuary and a small lake." Thesis, University of Liverpool, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569449.

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The ability to assess the contamination of sediments in estuaries and lakes is extremely important. This is because of various factors, both natural (tidal action, chemical remobilisation) and anthropogenic (e.g. building work), that lead to the disturbance of the sediment can result in the remobilisation or resuspension of the pollutants and, if high levels of pollutants are present in ,a region, they can be responsible for a number of health impacts on the local population. The use of sediment cores to investigate the pollution levels in the sediment is a relatively easy method of assessing

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26

Burzacott, Simone Louise. "An inheritance of pollution? : an investigation into the presence of PCB's in the Port Adelaide River Estuary and local dolphin population /." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09ENV/09envb9749.pdf.

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Thesis (M. Env. St.)--University of Adelaide, Mawson Graduate Centre for Environmental Studies, 1997.<br>Collation includes ten coloured plates plus two unnumbered plates in the preface. Includes bibliographical references.

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27

Rodrigo, Ana Patrícia Carreira. "Integration of sediment contamination with multi–biomarker responses in a novel bioindicator candidate (Sepia officinalis) for risk assessment in impacted estuaries." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8080.

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Dissertação para obtenção do Grau de Mestre em Engenharia do Ambiente<br>The Sado estuary (SW Portugal) is an example of the type of pressures coastal areas are subjected to, encompassing fisheries, agriculture, industries and other human activities, most of which may act as sources of aquatic pollution. In order to assess the impact of aquatic contaminants onto the biota, biomonitoring is compelling and the search for suitable bioindicator organisms is mandatory. The common cuttlefish, Sepia officinalis, is a very important species to fisheries, especially in the Sado estuary, albeit yet uns

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28

Sahu, Ananta Kumar. "A study of heavy metal distribution in the Humber Estuary with special reference to arsenic and its effects on Hediste (Nereis) diversicolor (O.F.Muller)." Thesis, University of Hull, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304294.

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29

Lanceleur, Laurent. "L’argent : sources, transfert et bioaccumulation : cas du système fluvio-estuarien girondin." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14270/document.

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Les rejets d’argent (Ag) dans l’environnement liés à l’exploitation minière aux diverses applications industrielles (e.g. bijouterie, médecine, photographie, électronique et plus récemment les nanotechnologies) font de Ag un polluant historique et émergent, dont les transferts et les effets dans les milieux aquatiques sont largement sous-documentés. Ce travail présente un premier bilan des sources, du transfert et de la bioaccumulation de Ag dans le système fluvio-estuarien de la Gironde. Le continuum Lot-Garonne-Gironde, connu pour une pollution polymétallique (e.g. Cd, Zn) provenant du bassi

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30

Mazik, Krystina. "The influence of a petrochemical discharge on the bioturbation and erosion potential of an intertidal estuarine mudflat (Humber estuary, UK)." Thesis, University of Hull, 2004. http://hydra.hull.ac.uk/resources/hull:7047.

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The influence of sedimentary variables on the structure and function of infaunal estuarine and marine communities is well studied but less is known of the influence of biota on sediment properties. Feeding and burrowing activity, locomotion, the production of faecal pellets and biological secretions (bioturbation) have important implications for sediment structure, chemistry, transport characteristics and the flux of nutrients and contaminants. Although spatial and temporal patterns in bioturbation have been studied to some extent, little attention has been given to the effects of pollution. T

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31

Deycard, Victoria. "Etude de la réactivité et l’efficacité de rétention des éléments traces métalliques dans les stations d'épuration de Bordeaux et leurs apports métalliques dans les eaux de la section Garonnaise de l'estuaire de la Gironde." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0026/document.

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Cette thèse s’intègre dans l’axe 3 du programme « ETIAGE » qui a associé pendant quatre ans (2010-2014) la Lyonnaise des Eaux, la Communauté Urbaine de Bordeaux (CUB), l’AEAG, et le FEDER, région Aquitaine avec l’université de Bordeaux, le CNRS et IRSTEA. L’objectif de l’axe 3 était de documenter les apports métalliques du bassin versant de la CUB aux eaux de la section garonnaise de l’estuaire de la Gironde. Ce vaste estuaire européen est l’un des plus turbides au monde, avec en période d’étiage la présence devant Bordeaux d’une zone de turbidité maximum (ZTM, >1 g.L-1 de MES en surface) q

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32

Merritt, Karen A. "Mercury Dynamics in Sulfide-Rich Sediments: Geochemical Influence on Contaminant Mobilization and Methylation within the Penobscot River Estuary, Maine, USA." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/MerrittKA2007.pdf.

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33

Galland, Claire. "Réponses du Flet européen Platichthys flesus à la contamination chimique : approche protéomique." Thesis, Brest, 2012. http://www.theses.fr/2012BRES0066/document.

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Les estuaires sont des zones de transition entre les eaux fluviales et les océans soumis à de fortes contraintes d’origine anthropique, telles que la pollution chimique. Pourtant, les estuaires sont d’une importance écologique primordiale, et sont notamment des zones de nourricerie ou de reproduction pour de nombreuses espèces. Le Flet européen Platichthys flesus est un modèle souvent utilisé comme espèce sentinelle dans les estuaires. Le but de ces travaux est d’explorer les mécanismes de réponse du Flet européen à la contamination chimique, afin éventuellement d’identifier de nouveaux biomar

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34

Martinez-Colon, Michael. "Pollutants and Foraminiferal Assemblages in Torrecillas Lagoon: An Environmental Micropaleontology Approach." Scholar Commons, 2014. http://scholarcommons.usf.edu/etd/6307.

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Torrecillas Lagoon in the North Coast of Puerto Rico has experienced extensive anthropogenic influence over the past 400 years. Elevated concentrations of Potential Toxic Elements (PTEs) have been reported in surficial sediments. The main goal of this dissertation was to implement in Puerto Rico the use of benthic foraminifers as a bioindicators of PTEs and to compare the impact of Cu(II) on field samples with results of experimental work using cultures. Analyses included geochemical assessment for bulk and carbonate- soluble bioavailable concentrations of PTEs in surface, core and pore-water

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35

Petit, Jérôme. "Nouveaux outils en sciences de l'environnement: géochimie isotopique du Cu-Zn et spéciation des éléments en trace métalliques par titrage acidimétrique :développement et applications aux phases particulaires de l'estuaire de l'Escaut, aux émissions atmosphériques et aux sols contaminés d'Angleur/Prayon." Doctoral thesis, Universite Libre de Bruxelles, 2009. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210231.

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Les potentiels de nouveaux moyens d’investigation en sciences de l’environnement, tel que la géochimie des isotopes stables du Cu et du Zn et l’étude de la spéciation des éléments en trace métalliques (ETM) par titrage acidimétrique sont évalués dans le cadre de trois cas d’études, faisant intervenir des matériaux de matrices et de concentrations en ETM variables. Afin de mettre en évidence de très subtiles variations des compositions isotopiques du Cu et du Zn dans les matériaux particulaires variablement pollués, une attention particulière à été voué à la mise au point des méthodes de sépara

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36

Oliveira, Cynthia. "Diversité des intégrons dans des sédiments estuariens anthropisés." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMR093.

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Les intégrons sont des plateformes génétiques bactériennes de capture et d'expression de gènes. Les intégrons cliniques sont les principaux responsables de la forte augmentation récente des bactéries multirésistantes aux antibiotiques. Cependant, dans l’environnement, ils ne représentent qu’une part minime de l’importante diversité des intégrons. Ainsi, les objectifs de cette thèse étaient (i) d’évaluer l’étendue de la diversité des intégrons dans l’environnement, (ii) de comprendre les phénomènes responsables de la structuration du pool d’intégrons dans le compartiment sédimentaire d’un milie

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37

Parreira, Caroline Nunes. "Avaliação da hidrodinâmica e da poluição no Canal de Piaçaguera, no Estuário de Santos-São VIcente (SP), a partir de informações ambientais e modelagem numérica." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/90/90131/tde-04072012-140310/.

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Localizados na interface entre a terra e o mar, sistemas estuarinos estão propensos a grandes influências de substâncias que são introduzidas por diversas fontes, incluindo rios, deposição atmosférica, efluentes e escoamento de água superficial. Estas áreas, em geral, possuem um forte gradiente de concentração de substâncias químicas, onde essas são transformadas, retidas ou eliminadas. O Canal de Piaçaguera está inserido no Sistema Estuarino de Santos e São Vicente (SESS), localizado na Bacia Hidrográfica da Baixada Santista, situada na região Região Metropolitana da Baixada Santista (RMBS),

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38

AYO-BALI, ABIODUN Emmauel. "Geochemical Analysis of the Environmental Phases of La Barra de Santiago Estuary, El Salvador." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1556804693894507.

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39

Ubilava, Mariam. "Effect of winter storm on water quality and fish toxicity the Duwamish and Nisqually Rivers /." Online pdf file accessible through the World Wide Web, 2007. http://archives.evergreen.edu/masterstheses/Accession86-10MES/Ubilava_M%20MESThesis%202007.pdf.

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Brousseau, Jennifer Peterson. "Growth of natural phytoplankton populations of Wilson Bay : a nutrient bioassay approach /." Electronic version, 2005. http://dl.uncw.edu/etd/2005/brousseauj/jenniferbrousseau.html.

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Larrose, Aurélie. "Quantification et spatialisation de la contamination en éléments traces métalliques du système fluvio-estuarien girondin." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14285/document.

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L’estuaire de la Gironde est affecté par une pollution polymétallique historique provenant de son bassin versant (affluent du Lot). L’analyse de 320 échantillons de sédiments couvrant l’ensemble de la surface estuarienne nous a permis d’établir les premières cartographies à haute résolution spatiale de la contamination métallique des sédiments de surface. Elles révèlent des zones d’accumulation préférentielle des ETM au niveau de la zone des îles en amont de l’estuaire et du chenal nord en aval de l’estuaire. Le facteur de contrôle dominant cette répartition est la granularité des sédiments.L’

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Jesus, Edson Tobias de. "DISTRIBUIÇÃO E FRACIONAMENTO DE FÓSFORO EM SEDIMENTOS DE MANGUEZAIS DO ESTUÁRIO DO RIO TIBIRI NA ILHA DO MARANHÂO, REGIÃO AMAZÔNICA." Universidade Federal do Maranhão, 2013. http://tedebc.ufma.br:8080/jspui/handle/tede/950.

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Made available in DSpace on 2016-08-19T12:56:41Z (GMT). No. of bitstreams: 1 Dissertacao Edson Tobias.pdf: 1461674 bytes, checksum: a6907228d63cb84097969b52734d4104 (MD5) Previous issue date: 2013-10-25<br>In order to assess the environmental impact and the behavior of phosphorus in the sediments of mangrove Tibiri River on the Maranhão island, five phosphorus fractions were determined (TP, IP, OP, AP) and NAIP in mangrove sediment, through sequential extraction according to the protocol of the European Commission (SMT - standards, measurements and testing Programme). Concentrations of the

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Souza, Iara da Costa. "Avaliação integrada da poluição em dois estuários do Espírito Santo, Brasil por meio de biomarcadores e análises químicas no ambiente e em Centropomus parallelus Poey, 1860." Universidade Federal de São Carlos, 2011. https://repositorio.ufscar.br/handle/ufscar/2054.

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Made available in DSpace on 2016-06-02T19:32:00Z (GMT). No. of bitstreams: 1 4148.pdf: 1575415 bytes, checksum: cf40520ac0a070a3c946be9bfd2efafe (MD5) Previous issue date: 2011-03-30<br>Universidade Federal de Sao Carlos<br>Estuarine and coastal regions are often impacted by various anthropogenic influences derived from industries, port activities, agriculture and sewage. Two Brazilian estuaries (Piraque-açu - ES and Santa Maria - ES) were evaluated in order to correlate genetic, biochemical, morphological and physiological biomarkers determined in the fish Centropomus parallelus with water

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Pougnet, Frédérique. "Etat de la qualité des eaux de l’estuaire de la Gironde : cas du cadmium et des butylétains." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0011/document.

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L’estuaire de la Gironde est affecté par une pollution polymétallique historique, dont la contamination persistante en cadmium (Cd) empêche une reprise complète et le développement de la conchyliculture girondine, avec un risque potentiel pour le 1er site ostréicole français (Marennes-Oléron). D’autre part, le suivi de l’état de la qualité chimique des masses d’eau, mis en place par la Directive Cadre sur l’Eau (DCE) a déclassé en 2009 la masse d’eau « Gironde centrale » à cause de niveaux élevés en tributylétain (TBT), hautement toxique et interdit depuis plusieurs décennies, détecté dans l’e

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Rainey, Michael Patrick. "Airborne remote sensing of estuarine intertidal radionuclide concentrations." Thesis, University of Stirling, 1999. http://hdl.handle.net/1893/2275.

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The ability to map industrial discharges through remote sensing provides a powerful tool in environmental monitoring. Radionuclide effluents have been discharged, under authorization, into the Irish Sea from BNFL (British Nuclear Fuels Plc.) sites at Sellafield and Springfields since 1952. The quantitative mapping of this anthropogenic radioactivity in estuarine intertidal zones is crucial for absolute interpretations of radionuclide transport. The spatial resolutions of traditional approaches e.g. point sampling and airborne gamma surveys are insufficient to support geomorphic interpretations

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Kazour, Maria. "Active and passive biomonitoring tools for microplastics assessment in two highly polluted aquatic environments : case study of the Seine estuary and the Lebanese coast SOURCES OF MICROPLASTICS POLLUTION IN THE MARINE ENVIRONMENT: IMPORTANCE OF WASTEWATER TREATMENT PLANT AND COASTAL LANDFILL MICROPLASTICS POLLUTION ALONG THE LEBANESE COAST (EASTERN MEDITERRANEAN BASIN): OCCURRENCE IN SURFACE WATER, SEDIMENTS AND BIOTA SAMPLES JUVENILE FISH CAGING AS A TOOL FOR ASSESSING MICROPLASTICS CONTAMINATION IN ESTUARINE FISH NURSERY GROUNDS IS BLUE MUSSEL CAGING AN EFFICIENT METHOD FOR MONITORING ENVIRONMENTAL MICROPLASTICS POLLUTION?" Thesis, Littoral, 2019. http://www.theses.fr/2019DUNK0544.

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La production de plastique est en augmentation continue pour répondre à la forte demande mondiale. Cette production massive est la source d'importantes quantités de plastiques que l'on retrouve dans les milieux aquatiques. Parmi ces plastiques, les microplastiques (MP) (particules microscopiques d’une taille < 5 mm) se retrouvent dans l’eau, les sédiments et sont susceptibles d’être ingérés par divers organismes marins. Cette thèse se focalise sur (1) l’évaluation des sources et des apports de microplastiques au milieu aquatique et de leur présence dans les organismes, et (2) de tester la f

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Aminot, Yann. "Étude de l'impact des effluents urbains sur la qualité des eaux de la Garonne estuarienne : application aux composés pharmaceutiques et aux filtres UV." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14161/document.

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Dans le contexte de la contamination quasi-généralisée des eaux de surface par les médicaments, les travaux de cette thèse portent sur l’étude des niveaux de concentration et du devenir de ces micropolluants organiques dans la Garonne estuarienne, recevant les effluents traités de l’agglomération bordelaise. Après le développement et la validation des outils analytiques associés à la détection multi-résidus dans les matrices eau et sédiment, la composition et la variabilité des effluents urbains bordelais ont été caractérisées, avant et après traitement en station d’épuration. La contamination

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Cruz, Justine Marie. "Etude de la contamination par les pesticides des milieux eau, air et sols : développement de nouveaux outils et application à l’estuaire de la Gironde." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0221/document.

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Largement utilisés par l’agriculture intensive, les pesticides sont aujourd’hui présents dans les différents compartiments environnementaux et ce à un niveau mondial. Les recherches de ces travaux de thèse se sont plus particulièrement portées sur deux grandes thématiques, l’une liée à l’écodynamique des pesticides en Garonne estuarienne par la caractérisation des sources, la présence et le devenir des molécules, et l’autre sur leur transfert dans les compartiments eau, air et sols d’un château viticole. Des méthodes d’analyse simples et rapides à mettre en oeuvre ont été optimisées, tout en é

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Sinnott, Tyler King. "Eelgrass (Zostera marina) Population Decline in Morro Bay, CA: A Meta-analysis of Herbicide Application in San Luis Obispo County and Morro Bay Watershed." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2236.

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The endemic eelgrass (Zostera marina) community of Morro Bay Estuary, located on the central coast of California, has experienced an estimated decline of 95% in occupied area (reduction of 344 acres to 20 acres) from 2008 to 2017 for reasons that are not yet definitively clear. One possible driver of degradation that has yet to be investigated is the role of herbicides from agricultural fields in the watershed that feeds into the estuary. Thus, the primary research goal of this project was to better understand temporal and spatial trends of herbicide use within the context of San Luis Obispo (

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Wyness, Adam James. "The influence of sediment characteristics on the abundance and distribution of E. coli in estuarine sediments." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/10158.

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Microbiological water quality monitoring of bathing waters does not account for faecal bacteria in sediments. Intertidal deposits are a significant reservoir of faecal bacteria and this indicates there is a risk to human health through direct contact with the sediment, or through the resuspension of bacteria to the water column. This project investigated factors influencing the relative abundance of faecal indicator organisms (FIOs) in intertidal estuarine sediments. The effects of physical, biogeochemical and biological sediment characteristics, environmental variables and native microbial co

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