Dissertations / Theses on the topic 'Planktic'
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Caromel, Aude Genevieve Marcelle. "Form and function in planktic foraminifera." Thesis, University of Bristol, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.628998.
Full textBeer, Christopher James. "Planktic foraminifera, ocean sediments and the palaeo-marine carbonate system." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/208361/.
Full textSchmuker, Barbara. "Recent planktic foraminifera in the Caribbean sea : distribution, ecology and taphonomy /." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13559.
Full textPados, Theodora [Verfasser]. "Recent planktic foraminifera in the Fram Strait : ecology and biogeochemistry / Theodora Pados." Kiel : Universitätsbibliothek Kiel, 2014. http://d-nb.info/1059109166/34.
Full textRückheim, Sylvia. "The onset of planktic foraminifera in the mid-Cretaceous of the Boreal Realm." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975763350.
Full textSteel, Blair Andrew. "Molecular and palaeontological approaches to the reconstruction of neogene spinose planktic foraminiferal phylogeny." Thesis, Royal Holloway, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429407.
Full textStewart, Iain A. "The molecular evolution of planktic foraminifera and its implications for the fossil record." Thesis, University of Edinburgh, 2000. http://hdl.handle.net/1842/13020.
Full textPalmer, Denise D. "Late Holocene planktic foraminiferal assemblages from Orca Basin : effects of dissolution on faunal assemblages." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001693.
Full textD'ONOFRIO, Roberta. "Planktic foraminiferal response to the early Eocene climatic perturbations: the post-PETM hyperthermals and the EECO event." Doctoral thesis, Università degli studi di Ferrara, 2017. http://hdl.handle.net/11392/2488050.
Full textThe main goal of this research was to investigate some extreme warming episodes characterizing the early Eocene climate and related to profound variations on the global carbon cycle and paleoceanographic conditions, the short-lived hyperthermals and the long-lasted Early Eocene Climatic Optimum (EECO). To pursue this aim three early Eocene deep-sea successions were selected from different paleoceanographic settings: the low-latitude central western Tethyan Terche section (northeastern Italy) and the western Atlantic ODP Site 1051 (Blake Nose), and the mid-latitudes southeastern Atlantic ODP Site 1263 (Walvis Ridge). These case studies were approached with integrated micropaleontological and geochemical analysis. The former is mainly based on planktic foraminifera, widely employed in the study of past environments as they record the effects of surface waters perturbations both in test chemistry and changes within the assemblages. Investigation of the three hyperthermals, H1 or ETM2, H2 and I1 at the Tethyan Terche section highlights significant changes in calcareous plankton assemblages across these events, suggesting increase in surface-water eutrophication coupled with a weakening of the upper water-column thermal stratification, although these changes were transient and more intense during the ETM2. Each event coincides with lithological anomalies interpreted as essentially linked to increased terrigenous dilution, as dissolution proxies do not display significant variations. The perturbed conditions persisted during the early CIE recovery, implying slower recovery rates for the environment and biota than for the carbon cycle. The analysis of the Atlantic sites encompassing the EECO reveals major changes in planktic foraminiferal assemblages across this perturbation mainly consisting in a permanent reduction in abundance and number of species of Morozovella paralleled by increase in abundance and diversification of Acarinina. Possible causes to explain this global and permanent overturn, previously documented in other low-latitude locations, are manifold and may include the sustained elevated temperature, prolonged high level of pCO2, surface-waters acidification, loss of photo-symbionts (bleaching) or even ecological competition. A test on Morozovella species from Site 1051 was performed to verify the bleaching hypothesis through analysis of the δ13C signal. Evidences of bleaching and test-size reduction were documented in a number of Morozovella species just above the J event. Nonetheless, the bleaching signal was transient and also involved acarininids, thus invalidating this hypothesis to explain the Morozovella permanent drop. Some Morozovella species never recover their maximum test-size implying that their ecological optimum threshold was crossed during the EECO. Analysis of the Morozovella coiling direction at Sites 1051 and 1263 highlight a dominant dextral preference for this genus during the interval preceding the EECO. However, all species show a first prominent flip to sinistral coiling starting slightly above the J event that became permanent slightly above the K/X event. Temporary switches towards sinistral coiling mode also occurred during several pre-EECO hyperthermals. Previous interpretations favour genetic explanations for coiling flips rather than ecological responses. These new data cannot validate or disprove the former idea, but should stimulate renewed thought on the latter idea. Planktic foraminiferal response to the EECO at Site 1263 also includes the virtual disappearance of the chiloguembelinids and abundance reduction of the thermocline-dweller subbotinids, interpreted as a result of ecological niches contraction probably related to weakening of the upper water-column thermal stratification. The whole planktic foraminiferal signal emphasizes the striking effect of the long-lasted EECO perturbation that superimposed and prevailed on the ephemeral changes linked to the hyperthermals.
Soldan, D. M. "REVISION OF PALEOCENE-EOCENE PLANKTIC FORAMINIFERAL BIOSTRATIGRAPHY AND EVOLUTIONARY HISTORY OF THE GENUS IGORINA THROUGH PARSIMONY ANALYSIS." Doctoral thesis, Università degli Studi di Milano, 2011. http://hdl.handle.net/2434/152906.
Full textAbahazi, Matthew A. "Tropical North Atlantic Sea Surface Temperature Reconstruction for the Last 800 Years Using Mg/Ca Ratios in Planktic Foraminifera." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1239392022.
Full textReichelt, Kerstin. "Late Aptian-Albian of the Vocontian Basin (SE-France) and Albian of NE-Texas biostratigraphic and paleoceanographic implications by planktic foraminifera faunas /." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=974321591.
Full textReynolds, Caitlin Elizabeth. "Environmental controls on the geochemistry of Globorotalia truncatulinoides in the Gulf of Mexico: Implications for paleoceanographic reconstructions." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7355.
Full textCame, Rosemarie Evangeline. "Abrupt climate change in the Atlantic Ocean during the last 20,000 years : insights from multi-element analysis of benthic and planktic foraminifera and coupled OA-GCM." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33945.
Full textIncludes bibliographical references.
Minor and trace element records of planktic and benthic foraminifera from Atlantic sediment cores, as well as output from a coupled OAGCM, were used to investigate the magnitude and distribution of the oceanic response to abrupt climate events of the past 20 kyr. The study addressed three major questions: 1) What is the magnitude of high-latitude sea surface temperature and salinity variability during abrupt climate events? 2) Does intermediate depth ventilation change in conjunction with high-latitude climate variability? 3) Are the paleoclimate data consistent with the response of a coupled OAGCM to a freshwater perturbation? To address these questions, analytical methods were implemented for the simultaneous measurement of Mg/Ca, Zn/Ca, Cd/Ca, Mn/Ca and Al/Ca in foraminiferal samples using inductively-coupled plasma mass spectrometry. Paired records of planktic foraminiferal [delta]¹⁸O and Mg/Ca from the subpolar North Atlantic reveal trends of increasing temperatures ([approx.] 3⁰C) and salinities over the course of the Holocene, which were punctuated by abrupt events. The variability does not appear to be periodic, but tends to recur within a broad millennial band. The records provide the first evidence of open-ocean cooling (nearly 2⁰C) and freshening during the 8.2 kyr event, and suggest similar conditions at 9.3 ka.
(cont.) However, the two largest temperature oscillations ([approx.] 2⁰C) occurred during the last 4,000 years, suggesting a recent increase in temperature variability relative to the mid-Holocene. Benthic foraminiferal Cd/Ca from an intermediate depth, western South Atlantic core provides insights into changes in the southward penetration of North Atlantic Intermediate Water (NAIW). Cd seawater estimates (Cdw) for the last glacial are consistent with the production of NAIW and its export into the South Atlantic. At [approx.] 14.5 ka, the NAIW contribution to the South Atlantic began to decrease, marking a transition from a glacial subsurface geometry to a Younger Dryas geometry, which occurred concurrently with the onset of the Bolling-Allerod to Younger Dryas cooling. High Cdw in both the deep North Atlantic and the intermediate South Atlantic imply reduced export of deep and intermediate water during the Younger Dryas, and a major decrease in northward heat transport. Modern subsurface geometry was established at [approx.] 9 ka, concurrently with the establishment of Holocene warmth in the North Atlantic region, further supporting a close linkage between subsurface circulation and North Atlantic climate.
(cont.) Paired benthic foraminiferal Mg/Ca and [delta]¹⁸O data from two intermediate depth low latitude western Atlantic sites - one from the Florida Current and one from the Little Bahama Bank- provide insights into the spatial distribution of intermediate depth temperature and salinity variability during the Younger Dryas. The Florida site lies within the deeper portion of the Florida Current; the Little Bahama Bank site lies within the deeper, unventilated portion of the North Atlantic subtropical gyre. During the Younger Dryas, temperatures increased at the Florida Current site and temperatures decreased at the Little Bahama Bank site. The temperature increase within the Florida Current is consistent with the reduced northward heat transport associated with a reduction in the Atlantic meridional overturning circulation (MOC); the temperature decrease at Little Bahama Bank is consistent with a cooling of high latitude surface waters. To test the possibility that a freshening of the surface North Atlantic caused the terrestrial and oceanographic changes during the Younger Dryas, the GFDL R30 coupled ocean-atmosphere general circulation model was forced using a North Atlantic freshwater perturbation of 0.1 Sv for a period of 100 years. The freshwater flux causes an overall reduction in the Atlantic overturning from 25 Sv to 13 Sv.
(cont.) However, at [approx.] 1,100 meters water depth, ventilation increases, causing decreases in both temperature and salinity throughout much of the intermediate depth North Atlantic. In the open North Atlantic, intermediate depth temperatures decrease by approximately 1⁰C; at the eastern side, intermediate depth temperatures decrease by less than 0.4⁰C. Intermediate depth temperatures at the western boundary, however, increase due to a reduction in northward heat transport, and also due to a shift in the location of the Intertropical Convergence Zone, which causes a reduction in surface salinity and a decrease in the upwelling of colder, deeper waters. Benthic foraminiferal Cd/Ca from an intermediate depth Florida Current core documents the history of the northward penetration of southern source waters within the return flow of the Atlantic meridional overturning circulation (MOC). Cd seawater estimates (Cdw) for the last glacial are consistent with the reduced influence of southern source waters at this location relative to the present.
(cont.) At [approx.] 18.5 ka, the southern source contribution to the Florida Current began to increase significantly, marking the onset of a transition from a glacial circulation pattern to a deglacial pattern, which lasted from [approx.] 17 ka to [approx.] 14 ka. At [approx.] 12.5 ka, following the onset of the Younger Dryas cooling in the North Atlantic and the reduction in North Atlantic Deep Water (NADW) production, the influence of southern source waters within the Florida Current decreased abruptly. A renewed influence of southern source waters occurred at [approx.] 9 ka, concurrent with the establishment of Holocene warmth in the North Atlantic region.
by Rosemarie Evangeline Came.
Ph.D.
Žarić, Snježana [Verfasser], Gerhard [Akademischer Betreuer] Fischer, Gerold [Akademischer Betreuer] Wefer, and Michael [Akademischer Betreuer] Schulz. "Seasonal variability of planktic foraminiferal downward fluxes induced by environmental sensitivity of foraminiferal species from observation to prediction / Snježana Žarić. Gutachter: Gerold Wefer ; Michael Schulz. Betreuer: Gerhard Fischer." Bremen : Staats- und Universitätsbibliothek Bremen, 2005. http://d-nb.info/1072302578/34.
Full textMunz, Philipp Moritz [Verfasser], and Hartmut [Akademischer Betreuer] Schulz. "Studying the Indian monsoon variability over the Early Holocene and Common Era in high resolution with numerical reconstructions based on planktic foraminifera / Philipp Moritz Munz ; Betreuer: Hartmut Schulz." Tübingen : Universitätsbibliothek Tübingen, 2016. http://d-nb.info/116416984X/34.
Full textMunz, Philipp [Verfasser], and Hartmut [Akademischer Betreuer] Schulz. "Studying the Indian monsoon variability over the Early Holocene and Common Era in high resolution with numerical reconstructions based on planktic foraminifera / Philipp Moritz Munz ; Betreuer: Hartmut Schulz." Tübingen : Universitätsbibliothek Tübingen, 2016. http://d-nb.info/116416984X/34.
Full textWall-Palmer, Deborah. "Response of pteropod and related faunas to climate change and ocean acidification." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1398.
Full textVolkmann, Renate. "Planktic foraminifer ecology and stable isotope geochemistry in the Arctic Ocean : implications from water column and sediment surface studies for quantitative reconstructions of oceanic parameters = Ökologie planktischer Foraminiferen und stabile Isotope im Arktischen Ozean /." Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung, 2000. http://www.gbv.de/dms/bs/toc/315939354.pdf.
Full textMeilland, Julie. "Rôle des foraminifères planctoniques dans le cycle du carbone marin des hautes latitudes (Océan Indien Austral)." Thesis, Angers, 2015. http://www.theses.fr/2015ANGE0059/document.
Full textPlanktonic foraminifera contribute to the marine biological carbon pump by generating organic (cytoplasm) and inorganic (shell) carbon fluxes. In this study, we characterized LPF total abundances, assemblages and test morphometry (minimum diameter) along 19 stations sampled by stratified plankton net (Multinet), during three consecutive austral summers (2012-2014) in the Southern Indian Ocean (30°S-60°S, 50°E-80°E). By demonstrating the efficiency of CPR for LPF sampling, we analysed population dynamic between 19 multinet sampling stations, showing the effect of frontal position on LPF production. To better constrain the impact of those organisms in the biological carbon pump at high latitudes, we have quantified the individual protein-biomass and test calcite mass of more than 2000 LPF. Differences in size-normalized protein-biomass and in size-normalized weight between years, species, and water bodies suggest that environmental parameters affect the production of planktonic foraminifera organic and inorganic carbon to varying degrees. Consequently, planktonic foraminifera are assumed to affect the biological carbon pump, depending on ecological conditions and biological prerequisites. The applicability of planktonic foraminifera tests as proxy of the past biological carbon pump in high latitudes would hence critically depend on the effect exerted by changing in ecological conditions, and the presence of different species. This study proposes a first estimation of planktonic foraminifera Corg and Cinorg standing stock and fluxes in the Southern Indian Ocean
Cárdenas, Andrés L. "Paleobiological assessment of controls underlying long-term diversity dynamics." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4021.
Full textStriebel, Maren. "PLANKTON DYNAMICS." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-92597.
Full textDel, Giorgio Paul A. "Heterotrophy in lake plankton." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41362.
Full textBirch, Daniel A. "Plankton modeling at multiple scales." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3274810.
Full textTitle from first page of PDF file (viewed October 9, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 132-138).
Kotrc, Benjamin. "Evolution of Silica Biomineralizing Plankton." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:10969.
Full textEarth and Planetary Sciences
Mantilla, Jose G. (Jose Gabriel) 1972. "Models of plankton biomass spectra." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80212.
Full textMartin, Mark A. "The influence of seasonal and climatic environmental changes on plankton in the marine mixed layer /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/6788.
Full textKramer, Kurt A. "Identifying plankton from grayscale silhouette images." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001402.
Full textPitchford, Jonathan William. "Dynamics of multi-species plankton populations." Thesis, University of Leeds, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397772.
Full textPascual-Dunlap, Maria Mercedes. "Some nonlinear problems in plankton ecology." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/38049.
Full textMatuszewski, Damian Janusz. "Computer vision for continuous plankton monitoring." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-24042014-150825/.
Full textMicroorganismos planctônicos constituem a base da cadeia alimentar marinha e desempenham um grande papel na redução do dióxido de carbono na atmosfera. Além disso, são muito sensíveis a alterações ambientais e permitem perceber (e potencialmente neutralizar) as mesmas mais rapidamente do que em qualquer outro meio. Como tal, não só influenciam a indústria da pesca, mas também são frequentemente utilizados para analisar as mudanças nas zonas costeiras exploradas e a influência destas interferências no ambiente e clima locais. Como consequência, existe uma forte necessidade de desenvolver sistemas altamente eficientes, que permitam observar comunidades planctônicas em grandes escalas de tempo e volume. Isso nos fornece uma melhor compreensão do papel do plâncton no clima global, bem como ajuda a manter o equilíbrio do frágil meio ambiente. Os sensores utilizados normalmente fornecem grandes quantidades de dados que devem ser processados de forma eficiente sem a necessidade do trabalho manual intensivo de especialistas. Um novo sistema de monitoramento de plâncton em grandes volumes é apresentado. Foi desenvolvido e otimizado para o monitoramento contínuo de plâncton; no entanto, pode ser aplicado como uma ferramenta versátil para a análise de fluídos em movimento ou em qualquer aplicação que visa detectar e identificar movimento em fluxo unidirecional. O sistema proposto é composto de três estágios: aquisição de dados, detecção de alvos e suas identificações. O equipamento óptico é utilizado para gravar imagens de pequenas particulas imersas no fluxo de água. A detecção de alvos é realizada pelo método baseado no Ritmo Visual, que acelera significativamente o tempo de processamento e permite um maior fluxo de volume. O método proposto detecta, conta e mede organismos presentes na passagem do fluxo de água em frente ao sensor da câmera. Além disso, o software desenvolvido permite salvar imagens segmentadas de plâncton, que não só reduz consideravelmente o espaço de armazenamento necessário, mas também constitui a entrada para a sua identificação automática. Para garantir o desempenho máximo de até 720 MB/s, o algoritmo foi implementado utilizando CUDA para GPGPU. O método foi testado em um grande conjunto de dados e comparado com a abordagem alternativa de quadro-a-quadro. As imagens obtidas foram utilizadas para construir um classificador que é aplicado na identificação automática de organismos em experimentos de análise de plâncton. Por este motivo desenvolveu-se um software para extração de características. Diversos subconjuntos das 55 características foram testados através de modelos de aprendizagem disponíveis. A melhor exatidão de aproximadamente 92% foi obtida através da máquina de vetores de suporte. Este resultado é comparável à identificação manual média realizada por especialistas. Este trabalho foi desenvolvido sob a co-orientacao do Professor Rubens Lopes (IO-USP).
Prince, Emily Katherine. "Chemically-mediated interactions in the plankton:." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22701.
Full textCommittee Chair: Kubanek, Julia; Committee Member: Hay, Mark; Committee Member: Jiang, Lin; Committee Member: Pavia, Henrik; Committee Member: Snell, Terry.
Johnson, Kevin Brett. "Predation on planktonic marine invertebrate larvae." Thesis, Thesis (Ph. D.)--University of Oregon, 1998, 1998. http://hdl.handle.net/1794/10086.
Full textMenezes, Sunshine. "Nanoplankton biodiversity in the Pettaquamscutt River estuary, Rhode Island, U.S.A. /." View online ; access limited to URI, 2005. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3186914.
Full textBeck, Kristin. "Experimentelle Überprüfung der "Intermediate Disturbance Hypothesis" (Connell 1978) an Modell-Lebensgemeinschaften planktischer Bakterienisolate." [S.l. : s.n.], 2000. http://e-diss.uni-kiel.de/diss.
Full textGjersdal, Jan. "Instrumentering og styring av produksjonsprosess for plankton." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14084.
Full textBasu, Ben Kumar. "Plankton development and trophic interactions in rivers." Thesis, University of Ottawa (Canada), 1997. http://hdl.handle.net/10393/10146.
Full textCurrie, Warren J. S. "Scale-invariance and patchiness in the plankton." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ61972.pdf.
Full textPearson, Paul Nicholas. "Evolution and phylogeny of Palaeogene planktonic foraminifera." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386154.
Full textSeears, Heidi. "Biogeography and phylogenetics of the planktonic foraminifera." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/11879/.
Full textBarker, S. "Planktonic foraminiferal proxies for temperature and pCO2." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596364.
Full textGuirey, Emma Jane. "Application of synchronisation theory to plankton patchiness." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/63137/.
Full textCoxall, Helen Katherine. "Hantkeninid planktonic foraminifera and Eocene palaeoceanographic change." Thesis, University of Bristol, 2000. http://hdl.handle.net/1983/8efa1d22-0ff8-45a3-9a5c-bd5ea90e266f.
Full textGuo, Weihua. "Computational Modeling of Planktonic and Biofilm Metabolism." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/79669.
Full textPh. D.
Engström-Öst, Jonna. "Effects of cyanobacteria on plankton and planktivores." Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/mat/ekolo/vk/engstrom-ost/.
Full textVeloza, Adriana J. "Transfer of Essential Fatty Acids by Marine Plankton." W&M ScholarWorks, 2005. http://www.vims.edu/library/Theses/Veloza05.pdf.
Full textSvee, Astrid. "Development and Testing of an Acoustic Plankton Recorder." Doctoral thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1477.
Full textRecent years have brought cross-disciplinary focus on possibilities, constraints and consequences of large scale zooplankton harvesting. Development of acoustic measurement technology is an important part of that work. Because of the small size of the plankton, the measurement frequencies have to be high compared to fishery acoustics. Based on a model of the size and shape of the plankton and its physical properties, the use of multiple frequency measurements will allow inverse modeling of the size and concentration of plankton. This thesis presents the development and test results of an Acoustical Plankton Recorder (APR). The system uses three frequencies, 200 kHz, 710 kHz, and 1 MHz. The system parameters are designed with a focus on measuring the zooplankton Calanus finmarchicus, which plays an important role in the Norwegian Sea ecosystem. The APR is a prototype instrument built to gain experience for future generations of instruments for plankton measurements. Different aspects of multi-frequency acoustical measurements are discussed with a focus on uncertainties and critical factors. The results from various experiments and measurements are presented. The estimated concentration of scatterers from data recovered by the Acoustical Plankton Recorder shows good agreement with biological samples.
Haupt, Florian. "Plankton vertical migrations - Implications for the pelagic ecosystem." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-135130.
Full textSanderson, Rory J. "Ecology of freshwater plankton in contrasting hydraulic environments." Thesis, University of Leicester, 1998. http://hdl.handle.net/2381/29785.
Full textBradburn, Mark James. "Light and planktonic nitrogen fixation in Colorado reservoirs." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1442959.
Full text