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Dissertations / Theses on the topic 'Planktonic ecosystem'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Kim, Hey-Jin. "Climate impacts on the planktonic marine ecosystem in the Southern California current." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2008. http://wwwlib.umi.com/cr/ucsd/fullcit?p3307584.

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Thesis (Ph. D.)--University of California, San Diego, 2008.<br>Title from first page of PDF file (viewed July 18, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

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2

Sakai, Yoichiro. "Spatio-temporal dynamics of planktonic food webs in the coastal ecosystem of Lake Biwa." 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/180371.

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3

Drexel, Jan Peter. "Contribution of Nitrogen Fixation to Planktonic Food Webs North of Australia." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19733.

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Nitrogen fixation is no longer considered to be a minor factor of the nitrogen cycle in oceanic ecosystems. Recent geochemical and biological efforts have led to a significant increase in the estimated input of nitrogen to marine ecosystems by biological fixation, while molecular studies have increased our knowledge of the number and diversity of nitrogen fixers known to be active in the ocean. Although Trichodesmium spp. have long been viewed as the primary marine nitrogen fixers, recent efforts have shown that various members of the picoplankton community are also actively involved in nitr

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4

Chabert, Pierre. "Impact of Synoptic Wind Variability on the Dynamics and Planktonic Ecosystem of the South Senegalese Upwelling Sector." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS096.

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En plus du cycle saisonnier du vent, les systèmes d'upwelling de bord Est des océans subissent des fluctuations à des échelles de temps plus courtes, intrasaisonnières ou synoptiques. Dans cette thèse, nous nous concentrons sur l'impact d'une intensification ou d'une relaxation du vent synoptique sur une période de 5 à 10 jours sur la dynamique et l'écosystème planctonique du secteur d'upwelling du sud Sénégal (SSUS). Ce système possède un plateau continental particulièrement peu profond et est situé au sud de l'abrupte péninsule du Cap-Vert, qui casse la continuité de la ligne de côte. Notre

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5

Rykaczewski, Ryan Ross. "Influence of oceanographic variability on the planktonic prey and growth of sardine and anchovy in the California current ecosystem." Diss., [La Jolla] : University of California, San Diego, 2009. http://wwwlib.umi.com/cr/ucsd/fullcit?p3354961.

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Thesis (Ph. D.)--University of California, San Diego, 2009.<br>Title from first page of PDF file (viewed June 16, 2009). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

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6

Kretschmer, Kerstin [Verfasser], Michael [Akademischer Betreuer] Schulz, Michael [Gutachter] Schulz, and Gerold [Gutachter] Wefer. "Global assessment of species-specific habitats of planktonic foraminifera : an ecosystem modeling approach / Kerstin Kretschmer ; Gutachter: Michael Schulz, Gerold Wefer ; Betreuer: Michael Schulz." Bremen : Staats- und Universitätsbibliothek Bremen, 2017. http://d-nb.info/1153119374/34.

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7

Aquino, Camila Akemy Nabeshima. "A distribuição funcional do fitoplâncton prediz a variabilidade ambiental entre dois rios subtropicais." Universidade Estadual do Oeste do Paraná, 2017. http://tede.unioeste.br/handle/tede/3482.

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Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-03-06T12:10:56Z No. of bitstreams: 2 Camila _Aquino2017.pdf: 3777643 bytes, checksum: c7cf1724a4f7a895dcb0917cee32f78a (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSpace on 2018-03-06T12:10:56Z (GMT). No. of bitstreams: 2 Camila _Aquino2017.pdf: 3777643 bytes, checksum: c7cf1724a4f7a895dcb0917cee32f78a (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-03-31<br>Fundação Araucária de Apoio ao Desenvolvimento Científico e

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8

Haupt, Florian. "Plankton vertical migrations - Implications for the pelagic ecosystem." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-135130.

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9

Yool, Andrew. "The dynamics of open-ocean plankton ecosystem models." Thesis, University of Warwick, 1997. http://wrap.warwick.ac.uk/1129/.

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10

Leach, Taylor Hepburn. "Cause and Consequences of Spatial Dynamics of Planktonic Organisms in Lake Ecosystems." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1479747973843758.

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11

Wallhead, Philip John. "Accounting for unpredictable spatial variability in plankton ecosystem models." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/63762/.

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Limitations on our ability to predict fine-scale spatial variability in plankton ecosystems can seriously compromise our ability to predict coarse-scale behaviour. Spatial variability which is deterministically unpredictable may distort parameter estimates when the ecosystem model is fitted to (or assimilates) ocean data, may compromise model validation, and may produce mean-field ecosystem behaviour discrepant with that predicted by the model. New statistical methods are investigated to mitigate these effects and thus improve understanding and prediction of coarse-scale behaviour e.g. in resp

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12

Liu, Cheng-Chien. "Using SeaWiFS ocean colour data to test a plankton ecosystem model." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343733.

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13

Lange, Michael. "Embedding individual-based plankton ecosystem models in a finite element ocean model." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/18051.

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Computational models of the ocean plankton ecosystem are traditionally based on simulating entire populations of microbes using sets of coupled differential equations. However, due to recent advances in high-performance computing, a new class of individual-based models (IBM) has come to the fore, which uses computational agents to model individual sub-populations of marine plankton. Although computationally more expensive, these agent-based models offer features that cannot be re-created using population-level dynamics, such as individual life cycles, intra-population variability and an increa

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14

Spall, Steven Andrew. "The impact of mesoscale jet activity on plankton heterogeneity and primary production : a numerical modelling study." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243174.

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15

Penczykowski, Rachel M. "Interactions between ecosystems and disease in the plankton of freshwater lakes." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50368.

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I investigated effects of environmental change on disease, and effects of disease on ecosystems, using a freshwater zooplankton host and its fungal parasite. This research involved lake surveys, manipulative experiments, and mathematical models. My results indicate that ecosystem characteristics such as habitat structure, nutrient availability, and quality of a host’s resources (here, phytoplankton) can affect the spread of disease. For example, a survey of epidemics in lakes revealed direct and indirect links between habitat structure and epidemic size, where indirect connections were mediate

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16

Perriss, Stephen James. "The physiological ecology of photosynthetic ciliated protozoa and their trophic roles in freshwater and brackish planktonic microbial food webs." Thesis, Lancaster University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334069.

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17

Blight, Stephen Paul. "Microbial metabolism and temperature : comparative studies in the Southern Ocean and a temperate coastal ecosystem." Thesis, Bangor University, 1996. https://research.bangor.ac.uk/portal/en/theses/microbial-metabolism-and-temperature--comparative-studies-in-the-southern-ocean-and-a-temperate-coastal-ecosystem(b794f8c8-258d-41cf-847d-b355e2091a96).html.

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Bacterial abundances and production, and the size distribution of oxygen metabolism and chlorophyll a concentration were followed through two seasonal cycles in the Menai Strait (North Wales, U. K. ) and during austral summer in the Southern Ocean. In the Menai Strait, spring blooms were characterised by a diatom to Phaeocystis succession. In both the Menai Strait and the Southern Ocean, meso- and microphytoplankton dominated phytoplankton production and biomass during diatom blooms. Nanophytoplankton predominated when production and biomass were low, i. e. during the summer in the Menai Strai

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18

Haupt, Florian [Verfasser], and Herwig [Akademischer Betreuer] Stibor. "Plankton vertical migrations - Implications for the pelagic ecosystem / Florian Haupt. Betreuer: Herwig Stibor." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1015925219/34.

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19

Hull, Pincelli Marie. "Macroevolutionary patterns in planktonic foraminifera and the recovery of Pelagic Ecosystems from the Cretaceous-Paleogene mass extinction." Diss., [La Jolla] : University of California, San Diego, 2010. http://wwwlib.umi.com/cr/ucsd/fullcit?p3398253.

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Thesis (Ph. D.)--University of California, San Diego, 2010.<br>Title from first page of PDF file (viewed May 6, 2010). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

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20

Thompson, Patrick Lyn. "Regional plankton diversity as a buffer against environmental change in freshwater ecosystems." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/17411.

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Many experiments show that species diversity at small, local scales affects ecosystems; however, conservation is concerned with extinctions of species across broad landscapes. The relevance of global or regional diversity to ecosystems therefore remains in question. I asked whether regional biodiversity in freshwater zooplankton affects the resilience and resistance of local ecosystems to the multiple stressors of warming and salinization. I hypothesised that dispersal of species from the regional community should buffer ecosystems against environmental change by providing species with

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21

Briland, Ruth. "Evaluating the causes and consequences of ecosystem change in Lake Erie: From plankton to fish." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1532076326598788.

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22

Behl, Stephan [Verfasser], and Herwig [Akademischer Betreuer] Stibor. "Diversity effects on ecosystem processes : a mechanistic approach using plankton communities / Stephan Behl. Betreuer: Herwig Stibor." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2012. http://d-nb.info/1025821971/34.

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23

Sales, Claudiana Paula de Souza. "Diversidade de bactérias quitinolíticas isoladas em amostras de água do mar e plâncton coletadas na região costeira do estado de São Paulo." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/87/87131/tde-21122009-111113/.

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Bactérias quitinolíticas são autóctones do ecossistema marinho e tem um importante papel no processo de degradação de quitina. Relativamente pouco é conhecido sobre a diversidade e potencial enzimático de bactérias quitinolíticas isoladas de ambientes tropicais costeiros. Amostras de água do mar e de plâncton foram coletadas no Canal de São Sebastião, Baixada Santista e Ubatuba. As bactérias quitinolíticas foram enumeradas e isoladas em meio mínimo contendo quitina coloidal e caracterizadas através de métodos fenotípicos e genotípicos. As maiores contagens de bactérias quitinolíticas foram obs

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24

Sachse, René. "Influence of climate change on lake ecosystems - disentangling physical, chemical and biological interactions." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-167312.

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Climate change affects lake ecosystems in many ways by direct and indirect temperature impacts on hydrophysical structure, hydrology, chemical cycles and on biological interactions. The identification of these climate signals can be complicated and superimposed by other environmental changes, such as land use changes. The aim of this thesis was to seperate temperature effects from effects of management and other environmental influences and to understand the underlying complex processes causing significant changes of ecosystem states. This understanding is important for decisions of lake and r

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Rohr, Tyler W. "Computational analysis of the biophysical controls on Southern Ocean phytoplankton ecosystem dynamics." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122325.

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Thesis: Ph. D., Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 193-220).<br>Southern Ocean net community productivity plays an out sized role in regulating global biogeochemical cycling and climate dynamics. The structure of spatial-temporal variability in phytoplankton ecosystem dynamics is largely governed by physical processes but a vari

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26

Meilander, Tracey Trzebuckowski. "The Role of Bacterioplankton in Lake Erie Ecosystem Processes: Phosphorus Dynamics and Bacterial Bioenergetics." [Kent, Ohio] : Kent State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=kent1163880480.

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Thesis (Ph.D.)--Kent State University, 2006.<br>Title from PDF t.p. (viewed Mar. 5, 2009). Advisor: Robert T Heath. Keywords: bacterioplankton, phosphorus dynamics, bacterial bioenergetics, labile dissolved organic carbon, bacterial productivity, bacterial respiration, bacterial growth efficiency, Lake Erie, hypoxia. Includes bibliographical references (p. 357-397).

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27

Gimenes, Manuela Vieira. "Virioplâncton na Amazônia: estudo da diversidade dos vírus das famílias Phycodnaviridae e Myoviridae nos rios Negro, Solimões e Cuieiras." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-10012011-084849/.

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O virioplâncton é o mais diverso e o mais abundante componente do plâncton, o qual exerce grande importância ecológica, estando envolvido em processos de ciclagem de nutrientes, diversificação e distribuição de algas e bactérias, controle de florações fitoplanctônicas, formação de nuvens e transferência gênica horizontal. Os objetivos deste projeto foram analisar as populações das famílias Phycodnaviridae e Myoviridae, nos rios Cuieiras, Negro e Solimões (AM), e determinar um possível impacto do lançamento de efluente doméstico sobre essas populações. Miofagos foram detectados nas amostras dos

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Harlin, Hugo. "2D Modelling of Phytoplankton Dynamics in Freshwater Lakes." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388868.

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Phytoplankton are single celled organisms capable of phytosynthesis, and are present in all the major oceans and lakes in the world. Phytoplankton contribute to 50% of the total primary production on Earth, and are the dominating primary producer in most aquatic ecosystems. This thesis is based on the 1D deterministic model by Jäger et. al. (2010) which models phytoplankton dynamics in freshwater lakes, where phytoplankton growth is limited by the availability of light and phosphorus. The original model is here extended to two dimensions to include a horizontal dimension as well as a vertical

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Hellekant, Nils. "Adaptive Evolution of Resource Use, Phenotypic Diversity, and Productivity of Phytoplankton Communities." Thesis, Umeå universitet, Institutionen för fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-161240.

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There is growing concern that the worldwide loss in biodiversity will harm the stability of the ecosystems, and thereby, the carrying capacity and critical ecosystem services the biosphere provides. Phytoplankton (microalgae) in lakes and oceans are arguably the most important primary producers. They are responsible for approximately half of the earth's primary production. However, there is little research into what influences the biodiversity of phytoplankton communities and of those studies the mechanisms for coexistence of phytoplankton have so far almost exclusively been studied on ecologi

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30

Ballón, Soto Roberto Michael. "Étude acoustique du macrozooplancton au Pérou : estimation de biomasse, distribution spatiale, impact du forçage physique, et conséquences sur la distribution des poissons fourrage." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20052/document.

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La partie nord du Système du courant de Humboldt (NSCH) couvre moins de 0.1% de la surface océanique mondiale mais produit plus de poisons, en particulier d'anchois du Pérou (Engraulis ringens), par unité de surface que n'importe quelle autre région du monde. Bien que ce système produise suffisamment de macrozooplancton pour alimenter les populations de poisson fourrage, le manque d'informations sur ce compartiment limite nos capacités d'étude. L'objectif de cette thèse est d'étudier la dynamique de la distribution spatiotemporelle de la biomasse en macrozooplancton du NSCH en relation avec l'

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31

Beaugrand, Grégory. "Biodiversité pélagique et changements hydroclimatiques dans l'océan Atlantique Nord." Paris 6, 2001. http://www.theses.fr/2001PA066390.

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32

Vincent, Flora. "Diatom interactions in the open ocean : from the global patterns to the single cell." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB094/document.

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Les diatomées sont des micro-algues unicellulaires, qui jouent un rôle primordial dans l’eco-système marin. En effet, elles sont responsables de 20% de l’activité photosynthétique sur Terre, et sont à la base de la chaîne alimentaire marine, toujours plus menacée par le changement climatique. Les diatomées établissent diverses interactions microbiennes avec des organismes issus de l’ensemble de l’arbre du vivant, à travers des méchanismes complexes tels que la symbiose, le parasitisme ou la compétition. L’objectif de ma thèse a été de comprendre comment ces interactions structurent la communau

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33

Rosero, Edith Mariela Burbano. "Frequência e diversidade de colifagos somáticos isolados de amostras de água do mar, plâncton e bivalves da baixada santista, canal de São Sebastião e Ubatuba." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-23102009-153715/.

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Os colifagos somáticos (CS) são os melhores indicadores de poluição fecal. Neste trabalho, foi determinada a abundância de CS em amostras de água do mar, plâncton, e bivalves coletadas em Santos, São Sebastião e Ubatuba. Houve correlação positiva entre CS e as bactérias marinhas viáveis, coliformes termotolerantes, E.coli e enterococos intestinais, e a correlação foi negativa com a temperatura. As maiores contagens de CS foram obtidas em Santos. As freqüências das famílias encontradas nas amostras de água do mar e plâncton foram: Siphoviridae (50% e 65,8%), Podoviridae (36% e 15,8%), Microviri

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34

Andrianjakarivony, Felana Harilanto. "Caractérisation du virome d’un écosystème tropical fortement anthropisé : la lagune Ebrié en Côte d’Ivoire." Electronic Thesis or Diss., Aix-Marseille, 2022. http://www.theses.fr/2022AIXM0579.

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Dans cette thèse, nous avons choisi d’étudier la composante virale d’un site lagunaire exposé aux rejets domestiques, agricoles et industriels : la Lagune Ebrié bordée par la ville d’Abidjan, en Côte d’Ivoire. Les objectifs de cette thèse visaient (1) à caractériser les viromes benthiqes et planctoniques dans 7 sites de cette lagune présentant des niveaux d'eutrophisation contrastés, en distinguant les viromes ADN et ARN, et (2) à examiner les stratégies de reproduction virale. Pour cela, une approche métagénomique shotgun combinée à des analyses bioinformatiques a été utilisée. Nous avons mon

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35

Reboul, Guillaume. "Metabarcoding and metagenomic approaches to decipher microbial communities in suboxic environments Microbial eukaryotes in the suboxic chemosyn- thetic ecosystem of Movile Cave, Romania Hyper- diverse archaea near life limits at the polyextreme geothermal Dallol area Performance of the melting seawater-ice elution method on the metabarcoding characterization of benthic protist communities Core microbial communities of lacustrine microbialites sampled along an alkalinity gradient Environmental drivers of plankton protist communities along latitudinal and vertical gradients in the oldest and deepest freshwater lake Ancient Adaptive Lateral Gene Transfers in the Symbiotic Opalina-Blastocystis Stramenopile Lineage Marine signature taxa and microbial community stability along latitudinal and vertical gradients in sediments of the deepest freshwater lake." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASL041.

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L’écologie microbienne concerne l’étude des microorganismes et de leurs interactions biotiques et abiotiques dans un écosystème donné. Ces vingt dernières années, l’avancement des techniques moléculaires pour analyser la diversité microbienne et, notamment, les nouvelles technologies de séquençages (NGS) ont permis de surmonter les limitations associées aux approches traditionnelles basées sur la culture et la microscopie. Ces approches moléculaires ont conduit à une accumulation des données de diversité microbienne et de potentiel métabolique dans des communautés microbiennes des écosystèmes

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Healey, Katherine Margaret. "Perturbation dynamics of a planktonic ecosystem." Thesis, 2008. http://hdl.handle.net/1828/1028.

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Planktonic ecosystems provide a key mechanism for the transfer of CO2 from the atmosphere to the deep ocean via the so-called "biological pump". Mathematical models of these ecosystems have been used to predict CO2 uptake in surface waters, and more recently have been embedded in global climate models. While the equilibrium properties of these models are well studied, less attention has been paid to their response to external perturbations, despite the fact that as a result of the variability of environmental forcing such ecosystems are rarely, if ever, in equilibrium. Human induced pert

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Miao, You-Chun, and 苗祐軍. "Planktonic community respiration and organic carbon cycle in a coral reef ecosystem: Nan-Wan Bay, southern Taiwan." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/67733441054640457511.

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碩士<br>國立臺灣師範大學<br>生命科學研究所<br>95<br>The purpose of this study is to understand potential factors impact on planktonic community respiration (CR) and organic carbon cycle in the water column of coral reef ecosystem in the Nan-Wan Bay, southern Taiwan. Results showed that CR varied between 1.7~ 213 mg C m-3 d-1 during study period. Further analysis showed that the rate was mainly determined by biomass and production of planktonic community, especially phytoplankton. This assumption can be evident by significant relationships observed between integrated values over euphotic zone of CR versus chlor

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Laurenceau, EC. "Ecosystem controls on carbon export efficiency from the naturally iron-fertilised phytoplankton bloom over the Kerguelen Plateau." Thesis, 2015. https://eprints.utas.edu.au/23226/1/Laurenceau_whole_thesis.pdf.

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In the ocean, the perpetual 'snowfall' of biogenic marine particles exports organic carbon from the well-lit surface layer to the deep sediments, promoting its sequestration. The efficiency of this 'biological carbon pump' (BCP), presents strong spatio-temporal variations that are not yet fully explained. Changes in surface plankton communities and trophic interactions appear important because they lead to modifications of sinking particle characteristics (e.g. composition, structure, sinking velocity). These controls are explored here via the characterization of sinking particles originating

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Lai, Chao-Chen, and 賴昭成. "Temperature effects on plankton community respiration in a subtropical freshwater ecosystem." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/sf6cc5.

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博士<br>國立臺灣大學<br>海洋研究所<br>105<br>With a ten-year weekly to biweekly data set taken from a P-limited subtropical reservoir, this study intends to explore the potential mechanisms in controlling the temporal variation of plankton community respiration rate (CR) and bacterial respiration rate (BR). Summer not only had high CR and BR value, but also high variation. The results showed that CR, BR, specific plankton community respiration (SCR), and specific bacterial respiration (SBR) all correlated with temperature significantly (p < 0.05). Activation energy, Ea, of CR is 0.80±0.04, SCR is 0.34±0.0

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40

Hall, Spencer Ryan. "Species sorting and biomass partitioning along light : nutrient predation risk gradients in planktonic pond ecosystems /." 2003. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3097111.

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41

Shajina, I. "Statistical evaluation of plankton diversity in mangrove ecosystems in Cochin area." Thesis, 1992. http://eprints.cmfri.org.in/11133/1/Shajina%20I..pdf.

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Mangroves are unique ecosystems which provide food, fodder and a host of other products to the coastal populations in tropical and subtropical areas. They help in preventing natural calamities such as large scale soil erosion and floods. Mangroves characterise an ecosystem where both terrestrial and aquatic fauna interact and strike a perfect balance. Due to the presence of high organic matter these areas act as important nursery grounds for a number of finfishes and shellfishes. The export of nutrients and rich detrital load from mangroves to adjoining areas such as estuaries makes these lo

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Evans, R. "An integrated study of a rapidly changing continental shelf ecosystem : linking physical conditions, prey field dynamics and top predator behaviour through a marine heatwave event." Thesis, 2019. https://eprints.utas.edu.au/33605/1/Evans_whole_thesis.pdf.

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The land-sea interface provides some of the world’s most valuable and biodiverse habitats, despite being exposed to anthropogenic pressures. Marine predators which cross this interface are particularly vulnerable, with human activities in coastal zones diminishing both the quality and availability of suitable breeding and foraging areas. These predators are constrained to forage in smaller oceanic regions while rearing young on-land, therefore their reproductive success is intrinsically linked to the productivity of nearshore waters. Changing environmental conditions, as a direct and indirect

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Laurent, Arnaud. "Examining the influence of meteorological events on plankton dynamics in a coastal ecosystem (Lunenburg Bay, Canada)." 2011. http://hdl.handle.net/10222/13707.

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Pelagic ecosystems are inherently complex in coastal inlets where they are controlled by physical processes and influenced by biogeochemical and foodweb interactions. Meteorological events are important drivers of this ecological variability. This thesis investigates their effect on the plankton dynamics of Lunenburg Bay, an inlet on the Atlantic coast of Nova Scotia (Canada). In this region, meteorological events are dominated by upwelling in summer, which are a dominant source of flushing and nutrient variability for the inlets. Despite these events, which induce phytoplankton blooms in othe

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Quijón, Pedro Armando. "Predator regulation of sedimentary fauna in a sub-Arctic fjord ecosystem / y Pedro Armando Quijón." 2004.

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Sachse, René. "Influence of climate change on lake ecosystems - disentangling physical, chemical and biological interactions." Doctoral thesis, 2014. https://tud.qucosa.de/id/qucosa%3A28696.

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Climate change affects lake ecosystems in many ways by direct and indirect temperature impacts on hydrophysical structure, hydrology, chemical cycles and on biological interactions. The identification of these climate signals can be complicated and superimposed by other environmental changes, such as land use changes. The aim of this thesis was to seperate temperature effects from effects of management and other environmental influences and to understand the underlying complex processes causing significant changes of ecosystem states. This understanding is important for decisions of lake and r

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ŠRÁMEK, Pavel. "Hodnocení stability rybničního ekosystému v Národní přírodní rezervaci Řežabinec." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-181009.

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The first part is characterized by a pond ecosystem and National Nature Reserve Řežabinec in terms of its historical development and creation. Are mentioned methods , the method and system of protection of the site. The paper describes a method of fish farming during the period of the individual plans of care farming in the last five years and the water conditions in the area . The ecosystem is assessed on the basis of available data in the literature to me In our own work we focus on monitoring water chemistry and state recovery tank , especially in terms of development and biomass of zooplan

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