Log in

Relevant bibliographies by topics / Diversity of Algae / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Diversity of Algae.

Dissertations / Theses on the topic 'Diversity of Algae'

Author: Grafiati

Published: 5 June 2025

Last updated: 16 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Diversity of Algae.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Goodson, Michael Stephen. "Symbiotic algae : molecular diversity in marginal coral reef habitats." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341115.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Barker, Gary L. A. "Genetic diversity in Emiliania huxleyi." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294614.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Stevens, Kim. "Multiplicity of viral infection in brown algae." Thesis, University of Plymouth, 2014. http://hdl.handle.net/10026.1/3156.

Full text

Abstract:

Brown algae are important primary producers and habitat formers in coastal environments and are believed to have evolved multicellularity independently of the other eukaryotes. The phaeoviruses that infect them form a stable lysogenic relationship with their host via genome integration, but have only been extensively studied in two genera: Ectocarpus and Feldmannia. In this study I aim to improve our understanding of the genetic diversity, host range and distribution of phaeoviruses. Sequencing and phylogenetic analysis of amplified fragments of three core phaeoviral genes (encoding major caps

APA, Harvard, Vancouver, ISO, and other styles

4

Weeks, Paul James Derek. "Morphometric studies of algal growth and diversity using image analysis." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Goodsell, Paris Justine. "Consequences of disturbance for subtidal floral and faunal diversity /." Title page, abstract and table of contents only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09phg6555.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

McKenny, Claire. "The Diversity of macroinvertebrate grazers in streams relationships with the productivity and composition of benthic algae /." Click here to access, 2005. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20060308.131239.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Hall, John David. "Diversity of conjugating green algae; phylogenetic studies of a species-rich eukaryotic lineage." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/8013.

Full text

Abstract:

Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Cell Biology & Molecular Genetics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

APA, Harvard, Vancouver, ISO, and other styles

8

McKenny, Claire. "The Diversity of Macroinvertebrate Grazers in Streams: Relationships With the Productivity and Composition of Benthic Algae." Thesis, Griffith University, 2005. http://hdl.handle.net/10072/368092.

Full text

Abstract:

There has been much interest in the last decade concerning the factors that influence diversity, especially how diversity and ecosystem processes may be linked. This study was based in small, cobble streams in South East Queensland. Its aim was to determine how the diversity and composition of consumers (the grazer guild) is influenced by both the production and composition of benthic algae, at different spatial scales. It also aimed to ascertain whether this response differs among grazer sub guilds with different dispersal capabilities. Ten sites in the Upper Brisbane and Mary catchments were

APA, Harvard, Vancouver, ISO, and other styles

9

Scoble, Josephine Margaret. "Diversity of silica-scaled protists." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:7bc73ed7-418b-49de-963b-81407a7c3a49.

Full text

Abstract:

This thesis investigates the diversity of two silica-scaled protist groups, Paraphysomonadida and Thaumatomonadida by light and electron microscopical observations and sequencing (rDNA) on novel clonal cultures. Despite these groups of protist dominating pelagic, littoral as well as inland freshwater and soil habitats, they are taxonomically poorly understood to the extent that any progress in ecological theory is hampered. Now that environmental DNA sequencing is being carried out faster than we can characterise protists from culture it is important that we understand how molecular and physic

APA, Harvard, Vancouver, ISO, and other styles

10

McKenny, Claire, and n/a. "The Diversity of Macroinvertebrate Grazers in Streams: Relationships With the Productivity and Composition of Benthic Algae." Griffith University. Australian School of Environmental Studies, 2005. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20060308.131239.

Full text

Abstract:

There has been much interest in the last decade concerning the factors that influence diversity, especially how diversity and ecosystem processes may be linked. This study was based in small, cobble streams in South East Queensland. Its aim was to determine how the diversity and composition of consumers (the grazer guild) is influenced by both the production and composition of benthic algae, at different spatial scales. It also aimed to ascertain whether this response differs among grazer sub guilds with different dispersal capabilities. Ten sites in the Upper Brisbane and Mary catchments were

APA, Harvard, Vancouver, ISO, and other styles

11

Thomas, Evan William. "THE ROLE OF WAVE DISTURBANCE ON LENTIC, BENTHIC ALGAL COMMUNITY STRUCTURE AND DIVERSITY." Bowling Green State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1178127686.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Katona, Leon R. "Diversity and Function of Algal Biofilms in the Laurentian Great Lakes." Wright State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright1622215756216238.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Sales, Villalonga Marta. "Cystoseira-dominated assemblages from sheltered areas in the Mediterranean sea : diversity, distribution and effects of pollution." Doctoral thesis, Universitat de Girona, 2010. http://hdl.handle.net/10803/7663.

Full text

Abstract:

Les algues del gènere Cystoseira són els principals organismes formadors d'estructura en fons rocosos ben il·luminats del Mar Mediterrani. Formen unes comunitats molt estructurades que s'assemblen ecològicament als boscos terrestres i que són sensibles als impactes antròpics. Aquesta tesi s'ha centrat en l'estudi de les espècies i comunitats dominades per Cystoseira que es troben en ambients calmats, és a dir, en petites cales i/o badies. S'han abordat diversos aspectes com són la distribució, composició, estructura i biogeografia d'aquestes comunitats, així com els efectes de la contaminació

APA, Harvard, Vancouver, ISO, and other styles

14

Holman, Krista Elaine. "The effects of sewage effluent on macroalgal and seagrass abundance, dry weight and diversity within Grahams Harbor, San Salvador, Bahamas." Miami University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=miami1176261511.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Cuvelier, Marie Laure. "New Insights into the Diversity, Distribution and Ecophysiology of Marine Picoeukaryotes." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/657.

Full text

Abstract:

Marine microbes are an essential component of global biogeochemical cycles. In oligotrophic marine surface waters, the phytoplankton, phototrophic, single-celled (on occasion, colonial) organisms, is often dominated by the picoplankton (cells <2 micrometers in size), which constitute the base of the marine food chain. The picophytoplankton is composed of three main groups of organisms: two genera of cyanobacteria, Prochlorococcus and Synechococcus, and a third group, the picoeukaryotes. Even though numerically less abundant than cyanobacteria, picoeukaryotes can contribute significantly to bi

APA, Harvard, Vancouver, ISO, and other styles

16

Freitas, Ana Paula Pires. "Algas perifíticas como indicadoras de qualidade em ambientes impactados pela drenagem ácida de minas na região carbonífera de Santa Catarina." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/35630.

Full text

Abstract:

A Drenagem ácida de minas (DAM), do ponto de vista ecológico, influencia os ambientes aquáticos provocando condições de stress para a maioria dos organismos. O baixo valor de pH (geralmente < 3,0), altas quantidades de sulfatos e íons metálicos dissolvidos diminuem a diversidade biológica. Esses locais podem ser caracterizados como ecossistemas simples, dominados por organismos acidofílicos e ácido tolerantes. Assim, o objetivo do presente trabalho foi identificar as comunidades de algas encontradas em ecossistemas impactados pela DAM na região carbonífera do Estado de Santa Catarina, Brasil.

APA, Harvard, Vancouver, ISO, and other styles

17

Nyman, Robert H. "A study of changes in algal population density diversity and distribution and changes in physical and chemical characteristics of Lake Elsinore." CSUSB ScholarWorks, 1986. https://scholarworks.lib.csusb.edu/etd-project/372.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Silva, Francielle Karla Lopes da. "Zygnematophyceae (Streptophyta) no perifíton de lagos urbanos do município de Goiânia, Go." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6005.

Full text

Abstract:

Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2016-08-26T12:09:17Z No. of bitstreams: 2 Dissertação - Francielle Karla Lopes da Silva - 2016.pdf: 1772534 bytes, checksum: 576affb937e162dcc74dc86625cef33b (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-08-26T12:09:41Z (GMT) No. of bitstreams: 2 Dissertação - Francielle Karla Lopes da Silva - 2016.pdf: 1772534 bytes, checksum: 576affb937e162dcc74dc86625cef33b (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf842

APA, Harvard, Vancouver, ISO, and other styles

19

Rutten, Karin. "Studies on the biomass, diversity and nutrient relationships of macroalgae and seagrasses in Lake Illawarra, New South Wales, Australia." School of Earth and Environmental Sciences - Faculty of Science, 2007. http://ro.uow.edu.au/theses/22.

Full text

Abstract:

Lake Illawarra is a shallow barrier lagoon, located on the south-eastern coast of Australia. Eutrophication, referring to the enrichment of water by inorganic plant nutrients (primarily nitrogen and phosphorus), is one of the key environmental problems in Lake Illawarra. Management of macroalgae in Lake Illawarra is a major issue; excessive blooms of macroalgae, resulting in odours, access problems and community concern over Lake health, have led to many management strategies, including direct harvesting of algal biomass. Little information is available on the factors responsible for excessive

APA, Harvard, Vancouver, ISO, and other styles

20

Schneck, Fabiana. "Efeitos da rugosidade de substratos, distúrbios físicos e organismos pastejadores na estruturação de assembleias de algas bênticas e na biomassa perifítica em um riacho subtropical : uma abordagem experimental." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/49267.

Full text

Abstract:

Os estudos apresentados nesta tese tiveram como objetivo compreender aspectos da organização de assembleias de algas bênticas em riachos. Foi avaliado especificamente o efeito da heterogeneidade de habitat na escala de rugosidade de substratos e sua interação com distúrbios hidrológicos e organismos pastejadores (grazers). Utilizou-se uma abordagem experimental in situ com substratos lisos e rugosos (com fendas) constituindo os tratamentos. Os experimentos foram conduzidos no Rio do Marco, um riacho de quarta ordem na região dos Campos de Cima da Serra, em São José dos Ausentes, Rio Grande do

APA, Harvard, Vancouver, ISO, and other styles

21

Keleher, Mary Jane. "Bioassessment and the Partitioning of Community Composition and Diversity Across Spatial Scales in Wetlands of the Bonneville Basin." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1986.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Harvey, Robert Jr. "Using PCR Amplification and Genetic Sequence Analysis of 18S rRNA Genes to Survey the Microbial Diversity and Distribution of Eukaryotic Microbes Inhabiting Two Thermo-acidic Streams in Yellowstone National Park, Wyoming." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/978.

Full text

Abstract:

A cultivation-independent approach, sequence analysis of 18S rRNA genes PCR-amplified from environmental DNA, was used to explore the diversity and distribution of eukaryotic microbes inhabiting algal mats in two acidic geothermal streams in Yellowstone National Park. The objectives were to: (1) clarify the identity of mat forming algae in Nymph Creek (2) survey microbial species in the Nymph Creek mat over seasonal intervals along a thermal gradient (3) compare microbial species in the Nymph Creek mat with those in Alluvium Creek mats (4) evaluate microbial species in algal mats formed on dif

APA, Harvard, Vancouver, ISO, and other styles

23

Kareyva, Albert Joseph. "A study to measure pollution effects on the antithermal maintenance and diversity index of stream periphyton of Little Cedar Creek and to illustrate the succession of the diatom fraction." Instructions for remote access. Click here to access this electronic resource. Access available to Kutztown University faculty, staff, and students only, 1985. http://www.kutztown.edu/library/services/remote_access.asp.

Full text

Abstract:

Thesis (M.S.)--Kutztown University.<br>Source: Masters Abstracts International, Volume: 45-06, page: 3039. Typescript. Abstract precedes thesis as preliminary leaves [1-4]. Includes bibliographical references (leaves [51-52]).

APA, Harvard, Vancouver, ISO, and other styles

24

Silva, Amanda Ferreira da. "Comunidades macrofaunais bênticas associadas às algas de deriva e à grama marinha Halodule wrightii Ascherson na Ilha do Japonês, Cabo Frio, RJ." Universidade do Estado do Rio de Janeiro, 2015. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=9528.

Full text

Abstract:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>As extensas pradarias submersas formadas pelas gramas marinhas são importantes habitats da costa, onde ocorrem interações ecológicas entre diversas espécies da vegetação subaquática, invertebrados bentônicos e peixes. As gramas marinhas e algas de deriva são conhecidas como macrófitas marinhas e, por ocuparem o mesmo tipo de substrato, são normalmente encontradas juntas, proporcionando oxigênio, alimento, proteção, abrigo além de sítios de reprodução e pastagem para os animais associados a essas pradarias. Amostras de algas de deri

APA, Harvard, Vancouver, ISO, and other styles

25

Rousso, Benny Z. "Optimization of cyanobacteria bloom management through improved forecasting models and optical sensors." Thesis, Griffith University, 2022. http://hdl.handle.net/10072/412995.

Full text

Abstract:

Cyanobacteria are a diverse group of microorganisms adapted to a range of environmental conditions that favour their ubiquity in waterbodies. Cyanobacteria harmful blooms (CyanoHABs) are events in which a cyanobacteria population grows rapidly, dominates the phytoplankton community and may release toxins or other noxious compounds in the waterbody. The frequency and magnitude of CyanoHABs are increasing as a result of climate change and increased pollution from urbanisation and agriculture expansion, representing a major risk to the public health and economy. Management of CyanoHABs is complic

APA, Harvard, Vancouver, ISO, and other styles

26

Thrush, Mariah A. "Analyzing Algal Diversity in Aquatic Systems Using Next Generation Sequencing." Ohio University Honors Tutorial College / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1366807717.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Rynearson, Tatiana A. "Clonal diversity, population differentiation and bloom dynamics in the centric diatom, Ditylum brightwellii /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/10979.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

McLenaghan, Natalie Ann. "Benthic macroinvertebrate diversity in a shallow estuary : controls on nutrient and algal dynamics /." Online version of thesis, 2009. http://hdl.handle.net/1850/9704.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Honjo, Mie. "Diversity and dynamics of virus-like agents killing blue green alga Microcystis aeruginosa." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/136719.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Groga, Noël. "Structure, fonctionnement et dynamique du phytoplancton dans le lac de Taabo (Côte d'Ivoire)." Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/6981/1/Groga.pdf.

Full text

Abstract:

Cette étude effectuée sur le lac Taabo ⁄ (Sud-Est de la Côte d’Ivoire), porte sur l’évaluation des paramètres de la qualité de l’eau, le peuplement phytoplanctonique, et le suivi de la production primaire. Ce lac de 69 km² se caractérise par une profondeur moyenne de 8 m, avec un temps de résidence moyen de 49,2 jours, une température moyenne de 29,5°C, absence de stratification; il concerne une population environnante de 140 000 habitants. Les entrées d’eaux dans le lac sont influencées par le barrage de Kossou situé en amont, la gestion hydroélectrique de Taabo, et le régime du fleuve Bandam

APA, Harvard, Vancouver, ISO, and other styles

31

Chase, Emily. "PHYCOVIR : diversity and dynamics of viruses in a high-density microalgae culture." Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0554.

Full text

Abstract:

Ce travail de thèse a été consacrée à l'étude d'un bassin de culture de microalgues (HRAP) avec l'objectif d'examiner les épisodes de mortalité massive, dont la cause est inconnue. Nous avons testé l'hypothèse que des virus de microalgues pourraient être responsables. Cette étude représente la première tentative d'exploration de la diversité virale dans un HRAP, en même temps que la collecte de données des hôtes potentiels grâce au métabarcodage 18S. L’analyse bioinformatique de métagénomes a permis d’identifier des virus présents dans le HRAP, et la dynamique de leurs populations a été suivie

APA, Harvard, Vancouver, ISO, and other styles

32

Haynes, K. "Bacterial diversity in intertidal sediment : the effect of algal-derived carbohydrates : an in situ and microcosm approach." Thesis, University of Essex, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437824.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Bellec, Laure. "Les virus de mamiellales (Prasinophyceae) : abondance, diversité et interactions coévolutives." Paris 6, 2009. http://www.theses.fr/2009PA066341.

Full text

Abstract:

Les virus jouent un rôle important dans la régulation des populations phytoplanctoniques mais relativement peu de données existent sur leur distribution, leur diversité génétique, la structure de leurs populations et leurs relations évolutives. Nous proposons d’approfondir ces questions en étudiant un système hôte-virus formé par les microalgues Prasinophyceae et leurs virus Phycodnaviridae. Les prasinophytes sont ubiquistes et dans ce groupe les genres Bathycoccus, Ostreococcus et Micromonas (ordre des Mamiellales) sont les plus abondants en milieu marin. Deux cent vingt-cinq nouvelles souche

APA, Harvard, Vancouver, ISO, and other styles

34

Pires, Laryssa Fanny Galantini 1988. "Variação espaço-temporal e diversidade dos crustáceos isópodes associados à alga parda Sargassum na Ilha de São Sebastião, São Paulo, Brasil." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314703.

Full text

Abstract:

Orientador: Fosca Pedini Pereira Leite<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-27T14:46:32Z (GMT). No. of bitstreams: 1 Pires_LaryssaFannyGalantini_M.pdf: 1898650 bytes, checksum: e078e521c78de161e961e5f5b734a6e9 (MD5) Previous issue date: 2015<br>Resumo: As faces oceânica e continental da Ilha de São Sebastião são distintas em diversos aspectos, mas ambas apresentam a alga parda Sargassum em seus costões. A falta de conhecimento sobre as assembleias de isópodes nestas duas regiões levou ao desenvolvimento do

APA, Harvard, Vancouver, ISO, and other styles

35

Evans, Christopher W. "Sewage diversion and the coral reef community of Kane‘ohe Bay, Hawai‘i: 1970- 1990." Thesis, University of Hawai‘i, Honolulu, 1995. http://hdl.handle.net/10125/16332.

Full text

Abstract:

The coral reefs of Kane'ohe Bay, on the windward coast of O'ahu, Hawai'i, have changed markedly over the last half century. Some of the most spectacular coral reefs in Hawai'i were reported from Kane'ohe Bay in the late 1800's and early 1900's, but with the beginning of extensive military dredge and fill operations during the World War IT era, conditions in the bay began to change dramatically. After the War, rapid urbanization of the area began and conditions in the bay continued to decline until pressure from the public and scientific community led to the diversion of the large sewage discha

APA, Harvard, Vancouver, ISO, and other styles

36

Sadowska-Deś, Anna Dominika [Verfasser], Imke [Gutachter] Schmitt, and Georg [Gutachter] Zizka. "Genetic diversity and environmental structuring of fungal and algal symbionts in the lichen Umbilicaria pustulata / Anna Dominika Sadowska-Deś ; Gutachter: Imke Schmitt, Georg Zizka." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2020. http://d-nb.info/1213349087/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Ragon, Marie. "Diversité et processus de colonisation microbienne sur des substrats minéraux." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00636619.

Full text

Abstract:

Mes travaux de recherche ont eu pour but d'analyser la diversité des microorganismes des trois domaines du vivant présents dans des biofilms phototrophes exposés à l'air, se développant sur des substrats minéraux divers, afin d'essayer, d'une part, de répondre à des questions de diversité et de biogéographie et, d'autre part, d'étudier le processus de colonisation par le biais d'expériences d'exposition contrôlées.J'ai ainsi caractérisé, essentiellement par des approches moléculaires basées sur l'analyse des banques des gènes d'ARNr de la petite sous-unité (SSU rDNAs) et sur des analyses d'emp

APA, Harvard, Vancouver, ISO, and other styles

38

Prinsloo, Shireen. "The distribution and diversity of macroalgae in selected estuaries along the Eastern Cape coast of South Africa." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1012314.

Full text

Abstract:

The growth and accumulation of macroalgae in estuaries are a common sight throughout the world (Boyer and Fong, 2005). Because macroalgae establish such complex but important links with other components within an estuary, it is essential to know which variables control and regulate their occurrences. The type of algae that will occur in an estuary depends however, on the physical and chemical features of the particular estuary (Lobban and Harrison, 1994). The focus of this study was to document and provide a listing of algae from estuaries around the Eastern Cape coast of South Africa and desc

APA, Harvard, Vancouver, ISO, and other styles

39

Chaib, Slimane. "Caractérisation de composés bio-actifs issus de la diversité micro-algale par métabolomique différentielle et déréplication assistée par la mise en réseaux de similarités spectrales (ALL DREAM)." Thesis, Perpignan, 2020. http://www.theses.fr/2020PERP0031.

Full text

Abstract:

Face aux préoccupations du grand public sur l’utilisation des pesticides de synthèse, la législation Européenne incite au développement de nouvelles stratégies afin d’évaluer et de limiter les impacts potentiels des différentes pratiques agriculturales sur l’environnement. Ainsi, le développement de nouvelles approches telles que l’utilisation de produits de bio-contrôle est en plein essor. Dans ce contexte, la biomasse issue de la production de micro-algues est une alternative à mettre en avant. En effet, les micro-algues constituent, au sein du milieu marin, une source variée de molécules bi

APA, Harvard, Vancouver, ISO, and other styles

40

Voisin, Marie. "Les processus d'invasions biologiques en milieu côtier marin : le cas de l'algue brune Undaria pinnatifida, cultivée et introduite à l'échelle mondiale." Paris 6, 2007. http://hal.upmc.fr/tel-01118270.

Full text

Abstract:

Les introductions biologiques se sont intensifiées en milieu marin côtier depuis les années 1970. Cette thèse avait pour but d’étudier le rôle des activités humaines dans le succès d’introduction d’une espèce cultivée et introduite mondialement : l’algue brune Undaria pinnatifida. Une étude phylogéographique (basée sur de nouveaux marqueurs mitochondriaux) a montré une redistribution de la diversité génétique à une échelle mondiale en relation avec des processus d’introduction différentiels. En Europe, l’introduction primaire a été liée à l’aquaculture et des populations se développent à prése

APA, Harvard, Vancouver, ISO, and other styles

41

Fernandes, Marjorie Cattaneo 1987. "Estrutura da comunidade de Gastropoda e Bivalvia (Mollusca) associados às algas pardas do gênero Sargassum C. Agardh, 1820 (Sargassaceae) do canal de São Sebastião, Litoral Norte do Estado de São Paulo." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315910.

Full text

Abstract:

Orientadores: Flávio Dias Passos, Fosca Pedini Leite<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-25T17:04:29Z (GMT). No. of bitstreams: 1 Fernandes_MarjorieCattaneo_M.pdf: 2191359 bytes, checksum: ec8782f154dd8bd30ae5def3636c426b (MD5) Previous issue date: 2014<br>Resumo: As macroalgas associadas aos costões rochosos formam ambientes heterogêneos, que estão presentes em grandes áreas no ambiente marinho. São bem distribuídas na região entremarés e correspondem a um habitat favorável devido a sua complexidade estr

APA, Harvard, Vancouver, ISO, and other styles

42

Ormiston, Anna Kathleen. "ENVIRONMENTAL, SPATIAL AND TEMPORAL EFFECTS ON MICROBIAL COMPOSITION IN LAKE ERIE." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1461444253.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Dixon, Kyatt R. "Diversity and systematics of Peyssonneliaceae (Rhodophyta) from Vanuatu and southeastern Australia." 2010. http://repository.unimelb.edu.au/10187/8508.

Full text

Abstract:

The thesis investigates members of the crustose and largely calcified red algal family Peyssonneliaceae through molecular analyses and anatomical and ultrastructural observations. Mitochondrial CO1 DNA barcoding was implemented, in combination with fine-scale anatomy, to recognise species boundaries and identify complexes of cryptic species. Nuclear and organellar DNA markers were employed to construct a multigene phylogeny for Vanuatu and southern Australian members of the family facilitating the recognition of two undescribed genera Annea and Incendia.

APA, Harvard, Vancouver, ISO, and other styles

44

Ololo, Gustave. "A limnological study of factors affecting algal biodiversity in the Hartbeespoort Dam." Thesis, 2014. http://hdl.handle.net/10210/11378.

Full text

Abstract:

M.Sc. (Aquatic Health)<br>The relationships between water quality variables and phytoplankton diversity in the Hartbeespoort Dam were assessed spatially and temporally from February 2011 to March 2012 to evaluate the effects of the water quality variables on cyanobacterial bloom (Microcystis aeruginosa) hence aquatic macrophytes growth (Eichhornia crassipes) in the dam. Variables measured using standard methods included; temperature, pH, electrical conductivity, total suspended solids, dissolved oxygen, nitrate, nitrite, total phosphorous , ammonium, trace metals, chlorophyll-a and the phytopl

APA, Harvard, Vancouver, ISO, and other styles

45

MELICHAR, Antonín. "Floristická studie vodních sinic a řas v jihovýchodní části kraje Vysočina." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-79717.

Full text

Abstract:

The phytoplankton samples from 45 localities in Vysočina region were collected in 2009. Species composition and relative abundance of species were studied; ecological factors like pH, conductivity, temperature, water transparency and dissolved ions were measured. Ecological indices (Shannon and Simpson index of diversity) were calculated and compared with other ecological factors. Checklist of all species present in Vysočina region was made. There were found 262 species and 4 species new for the Czech Republic.

APA, Harvard, Vancouver, ISO, and other styles

46

Vaiglová, Zuzana. "Dynamika lišejníkové symbiózy." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-367804.

Full text

Abstract:

The symbiotic relationships often represent not only the permanent cohabitation of two organisms, but they can evolve and change over time. Many papers published so far focused on the the specificity of lichens, characterising both highly specific species and those that can establish a symbiosis with many algal genotypes. In this second case we can imagine the possibility of a photobiont exchange during the life of lichen - the dynamics of lichen symbiosis. In this thesis I compared the occurence and diversity of photobionts within the thalli of lichens growing on the disturbed localities and

APA, Harvard, Vancouver, ISO, and other styles

47

Kumari, Namrata. "Exploiting Local Algal Diversity for Bio-Diesel Production." Thesis, 2017. http://ethesis.nitrkl.ac.in/8688/1/2017_PhD_512CH1007_NKumari.pdf.

Full text

Abstract:

Algae is proven potential resources for eco-friendly bio-diesel production. But research efforts are still required for worthwhile results. The present study aims to utilize locally available algae biomass resources for bio-diesel production. The samples were collected from the air, water depositories and soil within the Institute campus. Further purification, culture, morphological identification, preservation, lipid extraction, transesterification and bio-diesel properties estimation were also conducted. In the first set of experiment, water strains were collected, isolated up to the molecu

APA, Harvard, Vancouver, ISO, and other styles

48

Rozon, Robin. "Diversity and Dynamics of Algal Viruses in the Bay of Quinte." Thesis, 2013. http://hdl.handle.net/1807/35677.

Full text

Abstract:

To initiate algal virus research in the Bay of Quinte, three stations were sampled biweekly throughout 2011. By targeting algal virus DNA polymerase, major capsid protein genes (MCP), and a Microcystis aeruginosa cyanophage (Ma-LMM01) tail sheath protein gene, PCR amplification revealed diverse and unique Phycodnaviruses (viruses of eukaryotic algae) and cyanophage. When analysed statistically, patterns of virus abundance suggested that the seasonality of any one virus cannot be generalised to predict that of other viruses, even among closely related viruses. This study also demonstrated a str

APA, Harvard, Vancouver, ISO, and other styles

49

McCabe, Shelley Kathleen. "Environmental variability from internal waves affects benthic algal diversity in the littoral zone of a lake." 2006. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=450435&T=F.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Chuang, Ya-Chu, and 莊雅筑. "Molecular phylogeny and species diversity of the marine red algal genus Yonagunia (Halymeniaceae, Rhodophyta) from Taiwan." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/08332701181106569822.

Full text

Abstract:

碩士<br>國立臺灣海洋大學<br>海洋生物研究所<br>100<br>The previous studies on the taxonomy of Yonagunia from Taiwan were mainly focused on the marine flora investigation. Liu (2006) had discussed the taxonomic problem of Yonagunia from Taiwan, but her study results were largely relying on rbcL sequence analyses. In this study I focused the genus Yonagunia from Taiwan to infer the phylogenetic relationships between Yonagunia and Grateloupia and to clarify the development of auxiliary cell ampullar filaments by molecular analyses and morphological observation to improve the species diversity and distribution of Y

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!