Relevant bibliographies by topics / Pelagra

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Pelagra'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Pelagra"

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Bernardo Cofiño, Joaquín, María José Menéndez Calderón, and Andrés Quevedo de Quevedo. "Pelagra." Medicina Clínica 145, no. 4 (August 2015): e7. http://dx.doi.org/10.1016/j.medcli.2015.02.002.

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Revenga Arranz, Francisco, and Cristina Nadal Lladó. "Pelagra." Piel 19, no. 7 (January 2004): 374–77. http://dx.doi.org/10.1016/s0213-9251(04)72872-5.

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Delos Alos, Bárbara, and Sandra Riera Carmona. "Pelagra." FMC - Formación Médica Continuada en Atención Primaria 13, no. 10 (December 2006): 611. http://dx.doi.org/10.1016/s1134-2072(06)71413-x.

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Noleto, Rodrigo Sevilla, Nathalia Silva Pinto, and Janine Silva Ribeiro Godoy. "Pelagra: Correlação entre diagnóstico e o quadro clínico mais prevalente no Brasil." Research, Society and Development 10, no. 9 (July 21, 2021): e7210917787. http://dx.doi.org/10.33448/rsd-v10i9.17787.

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Objetivo: Identificar se há dificuldade no diagnóstico da patologia em razão das variadas manifestações clínicas e definir se há uma causa mais prevalente. Método: O estudo consiste em uma Revisão Integrativa de literatura, em que foram selecionados artigos das bases de dados: SciELO e MEDLINE, utilizando como critérios de inclusão artigos em português, inglês e francês, publicados entre 1922-2012; que abordassem o viés etiopatogênico da pelagra; e com qualquer delineamento metodológico. Foram utilizados os descritores: “pelagra”, “niacina” e “manifestações clínicas''. A amostra final foi constituída de 6 artigos. Resultados: Observou-se nos artigos que compõem a amostra que uma porcentagem alta de pacientes apresentam a “Pelagra Sine Pelagra”, ou seja, sem a manifestação das lesões dermatológicas características da pelagra, observando-se desse modo somente os distúrbios gastrointestinais e/ou neurológicos, dificultando o diagnóstico da patologia. No tocante à causa prevalente, é possível definir o alcoolismo como o fator de risco principal para o surgimento da doença. Conclusão: Concluiu-se que o perfil mais relatado foi o de indivíduos oligossintomáticos, em especial pacientes que apresentam quadros de “Pelagra Sine Pelagra”. A doença inicia-se com desordens dos órgãos digestivos, seguido do surgimento de lesões cutâneas, e, por fim, alterações nervosas. Em decorrência desse quadro arrastado e de nem sempre ser possível identificar a tríade clássica nos pacientes, tem-se um empecilho no diagnóstico tanto precoce quanto a longo prazo. Ademais, identificou-se alguns fatores de risco para a patologia, como alcoolismo, fator sazonal, radiação solar e desnutrição, sendo o alcoolismo a maior causa de pelagra na atualidade.
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Sanz-Bueno, Jimena, María Castellanos, Carlos Zarco, and Francisco Vanaclocha. "Pelagra: ¿una enfermedad olvidada?" Piel 26, no. 10 (December 2011): 540–42. http://dx.doi.org/10.1016/j.piel.2011.05.019.

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Miñana Planchart, Cristina, Jose Manuel Muñoz Martínez, Maria Isabel Ortiz Sánchez, Sandra S. Sánchez Lozano, and Luca Beltrame. "Pelagra en Sofala (Mozambique) tras el ciclón Idai. Respuesta de Médicos del Mundo." Revista de Investigación y Educación en Ciencias de la Salud (RIECS) 5, S1 (February 12, 2020): 26–33. http://dx.doi.org/10.37536/riecs.2020.5.s1.182.

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El 15 de marzo de 2019 el ciclón Idai golpeó intensamente a varios países el sudeste de África, entre ellos, Mozambique. Una de sus provincias más afectada fue Sofala y Médicos del Mundo España (MdM) respondió a la emergencia instalando centros de salud temporales en el distrito de Nhamatanda (provincia de Sofala), para atender las necesidades sanitarias básicas de la población afectada. En el mes de mayo de 2019 se detectó el primer caso de pelagra en un centro operado por MdM, al que siguieron otros muchos en las siguientes semanas. Esto provocó la necesidad de ofrecer una respuesta coordinada. MdM aunó esfuerzos con las autoridades sanitarias, así como con diferentes actores locales e internacionales en la articulación de un plan estratégico basado en la detección de casos, diagnóstico, tratamiento y prevención de la pelagra. En este artículo se describe la experiencia de MdM durante las ocho semanas en las que se detectaron y trataron los casos de pelagra.
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Rojas Chaves, Sebastián, and María Fabiola Cárdenas Quirós. "La importancia de Pelagra en el diagnóstico diferencial." Revista Medica Sinergia 4, no. 5 (May 1, 2019): 111–16. http://dx.doi.org/10.31434/rms.v4i5.226.

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Pelagra es el nombre que se le ha dado a la condición poco conocida, resultado del déficit de vitamina B3 o niacina, una enfermedad potencialmente mortal la cual es caracterizada por una triada clásica de diarrea, dermatitis y delirio, que está asociada a factores de riesgo como desnutrición, pobreza, ingesta de ciertos medicamentos, alteraciones metabólicas entre otros. Pelagra es una enfermedad de diagnóstico clínico que difícilmente se considera en los diagnósticos diferenciales de pacientes que consultan en servicios de emergencias o que se encuentran internados en salones de hospitales y es de suma importancia debido a la mortalidad que conlleva un diagnóstico tardío.
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Filgueiras, Fernanda de Marca, Dionne de Almeida Stolarczuk, Alexandre Carlos Gripp, and Isabel Cristina Brasil Succi. "Lipomatose simétrica benigna e pelagra, associadas ao alcoolismo." Anais Brasileiros de Dermatologia 86, no. 6 (December 2011): 1189–92. http://dx.doi.org/10.1590/s0365-05962011000600021.

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Paciente masculino, 42 anos, etilista crônico, apresentando quadro de tumorações em região cervical e ao redor dos ombros, lesões eritemato-violáceas, descamativas e algumas lesões bolhosas, nas áreas fotoexpostas dos membros superiores e inferiores. Baseado no quadro clínico e nos exames complementares, foi estabelecido o diagnóstico de pelagra associada à lipomatose simétrica benigna, sendo ambos os quadros justificados pelo etilismo crônico. Tratado com reposição de complexo B intravenoso e orientado quanto à importância da abstinência alcoólica, apresentou remissão completa do quadro cutâneo, porém sem alteração da lipomatose.
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Díaz Encinas, Jorge. "Contribución a la histopatología del hígado en la pelagra." Anales de la Facultad de Medicina 31, no. 3 (October 18, 2014): 310. http://dx.doi.org/10.15381/anales.v31i3.9622.

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Este trabajo tiene el propósito de estudiar la pelagra, enfermedad prevalente en nuestro medio, la cual tiene relación causal directa con factores carenciales, habiendo la posibilidad de que éstos puedan incrementarse por razones de orden económico cada vez mayores de nuestro tiempo. Además, la existencia de numerosos cuadros clínicos de fisonomía indefinida pero agrupados bajo el concepto genérico de "Avitaminosis", me conducen a verificar una breve revisión de la enfermedad sólo desde el ángulo histopatológico del hígado.
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Piqué-Duran, E., J. A. Pérez-Cejudo, D. Cameselle, S. Palacios-Llopis, and O. García-Vázquez. "Pelagra: estudio clínico, histopatológico y epidemiológico de 7 casos." Actas Dermo-Sifiliográficas 103, no. 1 (January 2012): 51–58. http://dx.doi.org/10.1016/j.ad.2011.05.001.

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Dissertations / Theses on the topic "Pelagra"

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Ramondenc, Simon. "Analyse des variations spatio-temporelles du zooplancton gélatineux et son effet sur les flux de matières à l'aide d'une approche combinant expérimentation et écologie numérique." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066528/document.

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Le terme plancton désigne l'ensemble des organismes dérivant au grès des courants marins. On distingue le plancton végétal et principalement photosynthétique, "le phytoplancton", du plancton animal hétérotrophe, "le zooplancton". Au cours des dernières décennies, de nombreuses études ont documenté une croissance de l'abondance et de la distribution spatiale du zooplancton gélatineux à travers diverses régions. Même si le terme "gélification" des océans doit être utilisé avec beaucoup de précaution, des régions comme la mer Méditerranée montre une constante augmentation des méduses au cours de ces 40 dernières années. L'espèce Pelagia noctiluca (Forsskål, 1775) est considérée comme étant la méduse la plus abondante du bassin méditerranéen depuis les années 70. Du fait de leur présence massive dans cette région, il est primordial d'évaluer précisément l'impact de P. noctiluca à la fois sur les cycles biogéochimiques et sur la structuration des écosystèmes pélagiques. Pour cela, les deux processus majeurs de transfert de matière dans l'écosystème doivent être étudiés : la séquestration de carbone via la pompe biologique et le transfert de carbon au travers des réseaux trophiques. Cette thèse s'articule autour de trois axes majeurs: (i) réaliser un premier bilan de l'export de carbone organique particulaire (POCtotal) et dissous (DOC) en mer Méditerranée, (ii) construire un modèle écophysiologique de P. noctiluca pour déterminer la contribution de cette méduse à la pompe biologique, et (iii) évaluer le niveau trophique de P. noctiluca et son potentiel impact sur les niveaux trophiques inférieurs
The term “plankton” refers to all the organisms drifting in the water following the currents. Commonly, the vegetable autotrophic and mainly photosynthetic, “phytoplankton” is distinguished from the heterotrophic and animal “zooplankton”. In the last decades, many studies reported an increase in the abundances and spatial distributions of gelatinous zooplankton in many oceans. Even if the concept of “jellyfication of the oceans” needs to be used with caution, jellyfish populations show an increase in Mediterranean Sea over the last 40 years. The species Pelagia noctiluca (Forsskål, 1775) is considered as the most abundant jellyfish in the Mediterranean basin since the 70s. Due to its massive presence in this area, it is essential to evaluate precisely the impact of P. noctiluca on both biogeochemical cycles and pelagic ecosystem structure. Thus, the contribution of P. noctiluca to the two main factors regulating the biological carbon transfer in the oceans: carbon sequestration via the biological carbon pump and carbon transfer through trophic networks. This manuscript is divided in 3 main sections : (i) providing an initial budget of the particulate (POCtotal) and dissolved organic carbon (DOC) in the Mediterranean sea, (ii) building an ecophysiological model of P. noctiluca to estimate its contribution to the biological carbon pump, and (iii) assessing the trophic level of P. noctiluca and its potential impact on lower trophic levels
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Moulins, Aurélie. "To the integrated approach and to the management of pelagic biodiversity inside a marine protected area : case of the cetacean populations in the Pelagos sanctuary (north-western Mediterranean sea)." Lyon 1, 2008. http://www.theses.fr/2008LYO10027.

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Zajková, Zuzana. "Movement ecology in pelagic seabirds." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/668688.

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Movement is a fundamental component of behaviour and thus both are inextricably linked. Variation in movement patterns usually reflects different behaviours, including those most glaring, such as foraging, dispersal, migration, social interaction, mate search or escaping from predators. The way individuals allocate their time budget to different behaviours within circadian rhythm and over the annual life cycle will ultimately provide knowledge about evolutionary processes and adaptive capacity, also important to proper conservation actions of endangered species. Among highly mobile marine megafauna, seabirds represent suitable model species to address key questions about movement and behaviour. The study of year-round movements of seabirds has been addressed over the last 20 years with the wide deployment of light-level geolocators equipped with saltwater immersion sensors. However, wet-dry data provided by such loggers seem underused so far despite their usefulness to provide important insights on a variety of dimensions of seabird ecology. The main aim of this thesis was to provide new insights into the factors shaping seabird behaviour. The thesis encompasses several aspects of seabird at-sea ecology of 4 different species spread over the Atlantic Ocean: Boyd’s shearwater (Puffinus boydi), Common tern (Sterna hirundo), Atlantic petrel (Pterodroma incerta) and Cory’s shearwater (Calonectris borealis). In Chapter 1 we reveal the timing of major events over the annual life cycle, migratory routes and place on the map the non-breeding areas of a little-known tropical seabird endemic to Cape Verde Islands, the Boyd’s Shearwater. We show that Boyd's shearwaters perform longitudinal migrations to the oligotrophic central North Atlantic Ocean for the non-breeding season, in contrast with closely-related taxa that rely on most productive waters. In Chapter 2, we show that Common terns breeding in continental Europe spread over the West African coast for wintering, but females winter further north and use offshore waters whereas males winter further south and remain nearby the coastline. Behavioural budgets of Common terns were shaped within circadian and circa-annual rhythms. In Chapter 3 we describe in detail the phenology of the Atlantic petrel, showing that breeding success likely shapes the timing of major life-history events and behavioural patterns year round. We did find evidence of carry-over effects, since failed breeders advanced their post-breeding migration, remained longer in the wintering area, and advanced pre-breeding migration comparing to successful breeders. Breeding success did not affect the selection of wintering areas, as all birds relied on the South American shelf slope during different stages of the annual cycle. In Chapter 4, we demonstrate how geolocator-immersion loggers constitute a powerful and irreplaceable source of information to study seabird behaviour. We present a novel approach to infer a diverse array of behaviours based uniquely on wet-dry data, built upon a set of state-of-the-art unsupervised machine learning algorithms that reduce multidimensional data to a bidimensional behavioural space, from which different behaviours can be drawn. We applied the protocol on wet-dry data from Cory’s shearwater. Through these means, we can inspect in great detail and from manifold perspectives the behavioural patterns at individual and population level, highlighting how seasonal constraints shape behavioural budgets and behavioural strategies. We use data visualization tools such as actograms and behavioural landscapes to get new insights, highlighting that such tools constitute an effective method to visualize behaviour of seabirds inferred from wet-dry data from manifold perspectives. Geolocator-immersion sensors currently remain as the most cost-effective balanced tracking devices to track seabird species over the entire annual cycle while ensuring the welfare of tagged individuals. Thus, results compiled in this thesis should encourage researchers to incorporate the use wet-dry data within hypothesis-driven frameworks, which surely would contribute to increase our knowledge of seabird ecology at sea.
El movimiento es un componente fundamental del comportamiento animal, estando ambos íntimamente entrelazados. Variaciones en los patrones de movimiento normalmente reflejan cambios de comportamiento, incluyendo aquellos más conspicuos como la búsqueda de alimento, la dispersión, la migración, las interacciones sociales, la búsqueda de pareja o la huida ante depredadores. La forma en la que los patrones comportamentales se ajustan en el tiempo de acuerdo a los ritmos circadianos y a lo largo del ciclo anual puede ayudarnos a entender, en última instancia, los procesos evolutivos y la capacidad de adaptación de las poblaciones animales, algo también importante de cara al desarrollo de medidas de conservación de especies amenazadas. Las aves marinas representan un modelo especialmente adecuado para el estudio de la ecología comportamental y del movimiento. Estudiar los movimientos de las aves marinas en mar abierto ha sido posible en las dos últimas décadas gracias a la normalización en el uso de geolocalizadores por niveles de luz. Aunque buena parte de los modelos de geolocalizador es capaz de registrar datos de conductividad en agua salada (seco/húmedo), esta información parece infrautilizada a la luz de la literatura publicada. Sin embargo, los datos de conductividad son enormemente útiles para el estudio de multitud de aspectos sobre la ecología de las aves marinas. Esta tesis aborda diferentes aspectos de la ecología en mar abierto de 4 especies de aves marinas del océano Atlántico: la pardela chica de Cabo Verde (Puffinus boydi), el charrán común (Sterna hirundo), el petrel atlántico (Pterodroma incerta) y la pardela cenicienta (Calonectris borealis). En el Capítulo 1 revelamos la fenología, rutas migratorias y área de invernada de una especie tropical de pequeño tamaño, la pardela de Cabo Verde, endémica de dicho archipiélago. A diferencia de especies cercanas, los individuos de esta especie realizan una migración longitudinal hasta las aguas oligotróficas del centro del Atlántico Norte. En el Capítulo 2, mostramos que los charranes comunes que crían en Europa migran hasta la costa oeste de África para invernar, aunque las hembras se quedan más al norte y en ambientes más marinos, y los machos más al sur y en ambientes costeros. El comportamiento en ambos sexos parece regulado por ritmos circadianos y anuales. En el Capítulo 3, desgranamos la fenología del petrel Atlántico, una especie endémica del archipiélago de Tristán da Cunha, mostrando que el éxito reproductor probablemente moldea la sucesión de eventos fenológicos y los patrones de comportamiento. Incluso encontramos evidencias de efectos arrastrados, puesto que los animales que fracasaron en la cría adelantaron la migración, permanecieron más tiempo en la zona de invernada, y retornaron antes a las colonias de cría. Tanto los animales que tuvieron éxito como los que fracasaron en la cría invernaron en aguas de la plataforma continental de América del Sur y Patagonia. En el Capítulo 4, presentamos un nuevo protocolo analítico basado en algoritmos de aprendizaje automático que utiliza únicamente datos de conductividad. Mediante su aplicación sobre datos de pardelas cenicientas, demostramos que los datos de conductividad constituyen una poderosa herramienta para el estudio de las aves marinas, permitiendo desglosar a un nivel sin precedentes su comportamiento a diversas escalas: espacial (de viajes cortos a migraciones anuales), temporal (de días a años) y poblacional (de individuos a poblaciones). El análisis también nos permite resaltar los diferentes elementos que moldean el comportamiento animal a diferentes escalas temporales, utilizando para ellos potentes herramientas de visualización de datos como los actogramas. El conjunto de resultados expuestos en esta tesis debe alentar a los investigadores a utilizar más frecuentemente los datos de conductividad, lo cual contribuiría a aumentar nuestro conocimiento sobre la ecología de las aves marinas.
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De, Schryver Vera. "Mixotrophy and pelagic ecosystem dynamics." Thesis, Brest, 2013. http://www.theses.fr/2013BRES0045/document.

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Les espèces protistes ont été traditionnellement classifiées comme des plantes ou des animaux en raison de l’absence ou présence des chloroplastes. L’état actuel de la connaissance indique qu’un grand nombre d’espèces protistes portent des chloroplastes mais que physiologiquement elles sont capables d’utiliser l’autotrophie (photosynthèse) ou l’hétérotrophie pour se nourrir. La combinaison de ces deux modes trophiques par une même cellule est nommée mixotrophie. Chez les protistes l’hétérotrophie peut s’effectuer soit par la consommation des particules par phagocytose, e.g. des proies bactériennes, ou bien par l’absorption des composants organiques dissouts, i.e. osmotrophie. La mixotrophie est de plus en plus décrit chez les protistes dans tous les habitats aquatiques. Les écologistes du plancton constatent la récurrence de la mixotrophie chez les formes traditionnelles « phyto»plancton et micro »zoo »plancton. Cependant, identifier et quantifier la mixotrophie reste toujours un défi méthodologique. Dans cette étude nous nous sommes intéressés à la mixotrophie chez les espèces phytoplanctoniques marines, en particulier à leur nutrition phagotrophique de proies bactériennes. Nous avons testé des techniques modernes afin d’identifier la mixotrophie dans des cellules phytoplanctoniques. La technique cytogénétique d’hybridation in situ Card-FISH en utilisant de sondes d’ARN ribosomique 16S a été effectuée suivant des protocoles existant pour des bactéries et des protistes. Cette technique s’est avérée être un outil précieux pour visualiser des groupes phylogénétiques bactériens en association avec le phytoplancton à l’aide de la microscopie à épifluorescence, sans avoir besoin d'un isolement préalable des cellules ou des interférences avec l'association microbienne. Cependant, la méthode a échoué pour visualiser mixotrophie chez le phytoplancton car la sonde eubactérienne générale(EUB338) combine une large gamme d'espèces phytoplanctoniques, ce qui rend impossible de discriminer les signaux fluorescents provenant de tissus bactérienne ou phytoplanctonique. Le contexte de ces études est le phytoplancton et les bactéries hétérotrophes lesquels constituent des principaux concurrents pour les nutriments inorganiques dissouts. Dans le cas où la croissance bactérienne est limitée par le carbone, l'augmentation de la concentration de carbone organique dissous(DOC) renforce la croissance bactérienne et la consommation de nutriments dissous et ainsi affecte négativement la croissance du phytoplancton autotrophe. Cependant, les consommateurs de bactéries, i.e.phytoflagellés mixotrophes, peuvent être favorisés dans de telles situations car la hausse de DOC donne lieu à l'abondance plus élevé des proies bactériennes.En outre, nos résultats indiquent un potentiel effet positif de la température sur le mode de nutrition hétérotrophe de l’espèce, ainsi qu’une croissante contribution des espèces mixotrophes au sein des communautés de phytoplancton dans des conditions des hautes températures des eaux de surface de la mer
Protist species were traditionally classified morphologically as either „plants“ or „animals“, based on the absence or presence of chloroplasts. State of science is that a high number of protist species carrychloroplasts but are nutritionally able to employ both autotrophy (photosynthesis) and heterotrophywithin a single cell. This combination of autotrophic and heterotrophic mode of nutrition within a single species is named mixotrophy. In protists, heterotrophy can be realized either by the uptake of food particles (e.g. bacterial prey) through phagocytosis or by the uptake of dissolved organic compounds (i.e.osmotrophy). Mixotrophy is globally and increasingly described in protists from all types of aquatic habitats. Plankton ecologists nowadays assess mixotrophy among the traditionally typified “phyto”plankton and mikro”zoo”plankton species as regularity. Nevertheless, detection and quantification of mixotrophy is still a methodological challenge. In this study, we focused on mixotrophy in marine phytoplankton species and put emphasis on its phagotrophic nutrition from heterotrophic bacterial prey. State of the art methodology was tested to visualize mixotrophy in single phytoplankton cells. Catalyzedreported deposition-fluorescence in situ hybridization (Card-FISH), using 16S ribosomal RNA probes,was employed based on existing protocols for bacteria and protists. The method proved to be a valuable tool to visualise bacterial phylogenetic groups in association with phytoplankton by epifluorescence microscopy without need for prior isolation of cells or interference with the microbial association.However, the method failed to visualize mixotrophy in phytoplankton since the general eubacterial probe(EUB338) hybridised a broad range of phytoplankton species making it impossible to discriminate fluorescent signals originating from bacterial or phytoplankton tissue. Background of these studies is phytoplankton and heterotrophic bacteria being major competitors for dissolved inorganic nutrients. In case that bacterial growth is carbon limited, increasing concentrations of degradable dissolved organic carbon (DOC) enhance bacterial growth and consumption of dissolved nutrients and there by negatively affect autotrophic phytoplankton growth. Bacteria consuming mixotrophic phytoflagellates, however, may gain in importance in such situations since DOC provokes higher bacterial prey supply.In addition, our results indicate a potential positive effect of temperature on O. minima´s heterotrophic nutrition mode, and indicate a potential increasing contribution of mixotrophic species to phytoplankton communities under increasing sea surface water temperatures
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Wattimena, Stephen. "Couplage pelagos-benthos en Manche occidentale." Brest, 2000. http://www.theses.fr/2000BRESA001.

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Wilson, Rory Paul. "Breeding Jackass Penguins as pelagic predators." Doctoral thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/17653.

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Bibliography: pages 187-191.
The foraging of breeding Jackass Penguins Spheniscus demersus was studied in and around southwestern Cape Province, Saldanha Bay (33⁰ S, 18⁰ E), South Africa. Penguins are difficult to observe at sea. Hence, I devised a number of new techniques for studying the foraging behaviour of Jackass Penguins at sea. I built electronic and autoradiographic remote-sensing devices to measure swimming speed, distance travelled and time spent at each depth by foraging Jackass Penguins. Penguin swimming speed was reduced in proportion to the cross-sectional area of the devices, and results derived from birds wearing the devices had to be interpreted accordingly. Penguins do not regurgitate their stomach contents when handled, so I constructed a wet-offloading stomach pump which extracted 100% of the stomach contents. Using this pump, I determined that the rate of digestion of fish and squid by Jackass Penguins differed. Care is needed in diet interpretations where both fish and squid are major food items.
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Williams, Maria C. "The pelagic record of ocean acidification." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.686814.

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Ocean acidification (OA) as a result of anthropogenic CO2 accumulation has major implications for the calcification of marine organisms. Assessing the calcification response of coccolithophores and planktic foraminifera to OA in particular is paramount as together they produce the majority of pelagic carbonate burial and thus impact biogeochemical cycling and oceanic CO2 uptake. In this thesis, two sediment cores from Eirik Drift and the Norwegian Sea are used to reconstruct the natural calcification response of marine plankton since the Last Glacial Maximum and compare these changes to recent anthropogenic influences over the last 200 years. Reconstructions of the bottom water dynamics and thus sedimentation at Eirik Drift infers the suitability of the core for palaeo-analysis of plankton calcification. The calcification response of three foraminiferal species and two morphotypes of the dominant polar species Neogloboquadrina pachyderma are significantly correlated throughout the Holocene suggesting similar calcification mechanisms between and within species. Although the drivers of calcification appear to vary temporally and geographically, down-core planktic foraminiferal Mg/Ca and faunal assemblage counts point towards the importance of sea surface temperature and optimal growth conditions on the calcification of N pachyderma. Unlike Globigerina bulloides, N pachyderma shows little sensitivity to CO2 changes across the last deglaciation Since the beginning of industrialisation, foraminiferal calcification fluctuates within the natural long-term trends observed over the last 22 kyrs inferring minimal anthropogenic impacts on foraminiferal calcification. Interspecies-specific responses are evident, as the test weight of G. bulloides increases since the early 1900s in response to a warming North Altantic Current, whilst Neogloboquadrina incompta shows little change over the last 200 years. Furthermore, an increase in the degree of calcification of the abundant coccolithophore Emiliania huxleyi occurs in response to accelerated 20th century climate change pointing towards increased carbonate burial in the sub-polar North Atlantic under future global change.
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Squire, Gareth. "The biogeography of the Indo-West Pacific echinoids." Thesis, Queen Mary, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391824.

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Knotz, Susanna [Verfasser]. "Trophic interactions in the pelagic / Susanna Knotz." Kiel : Universitätsbibliothek Kiel, 2008. http://d-nb.info/1019744219/34.

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Walters, Louise. "Lipid oxidation in salt-dried pelagic fish." Thesis, University of Lincoln, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262195.

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Books on the topic "Pelagra"

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Guerra, Delfín García. Lepra asturiensis, la contribución asturiana en la historia de la Pelagra: Siglos XVIII y XIX. Madrid: Universidad de Oviedo, Consejo Superior de Investigaciones Científicas, 1993.

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Palagi, Pelagio. Pelagio Pelagi, pittore: Dipinti dalle raccolte del Comune di Bologna. Milano: Electa, 1996.

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Despoinis Pelagia: Mythistorēma. 6th ed. Athēna: Ekdoseis Topos, 2010.

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Akunin, B. Pelagia & the white bulldog. London: Weidenfeld & Nicolson, 2006.

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Akunin, B. Pelagia i czerwony kogut. Warszawa: Noir sur Blanc, 2003.

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Akunin, B. Pelagia & the white bulldog. Oxford: ISIS, 2007.

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Asmadi. Pelajar pejuang. Jakarta: Penerbit Sinar Harapan, 1985.

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Akunin, B. Pelagia and the white bulldog. London: Weidenfeld & Nicolson, 2006.

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Pelagia and the white bulldog. London: Weidenfeld & Nicolson, 2006.

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Akunin, B. Sister Pelagia and the White Bulldog. New York: Random House Publishing Group, 2007.

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Book chapters on the topic "Pelagra"

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Frank, J. Howard, J. Howard Frank, Michael C. Thomas, Allan A. Yousten, F. William Howard, Robin M. Giblin-davis, John B. Heppner, et al. "Pelagic Community." In Encyclopedia of Entomology, 2778. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_2831.

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Kaylor, John D., and Robert J. Learson. "Pelagic Fish." In The Seafood Industry, 67–76. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4615-2041-2_4.

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Douglas, Laura S. "Pelagic Fish." In The Seafood Industry, 48–62. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118229491.ch4.

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Selley, Richard C. "Pelagic deposits." In Ancient Sedimentary Environments, 283–94. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-7304-9_11.

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Selley, Richard C. "Pelagic deposits." In Ancient Sedimentary Environments, 283–94. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4615-5421-9_11.

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Selley, Richard C. "Pelagic deposits." In Ancient Sedimentary Environments, 283–94. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-1233-5_11.

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Matishov, Dmitry G., and Gennady G. Matishov. "The pelagic ecosystem." In Radioecology in Northern European Seas, 64–102. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09658-1_3.

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Ulloa, Osvaldo, and Carolina Grob. "Marine pelagic ecosystems." In Surface Ocean—Lower Atmosphere Processes, 119–37. Washington, D. C.: American Geophysical Union, 2009. http://dx.doi.org/10.1029/2008gm000867.

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Meadows, P. S., and J. I. Campbell. "The Pelagic Environment." In An Introduction to Marine Science, 68–91. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4615-3668-0_4.

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Meadows, P. S., and J. I. Campbell. "The Pelagic Environment." In An Introduction to Marine Science, 68–91. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-015-7329-0_4.

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Conference papers on the topic "Pelagra"

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Brandes, Horst G. "Properties of North Atlantic Abyssal Plain Sediments From High-Quality Long Piston Cores." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20663.

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Two abyssal plain sites on either side of the North Atlantic Ocean are characterized by sequences of distal turbidites and pelagic clays. At the Great Meteor East location, turbidites are quite thick and geotechnical properties such as water content and shear strength can be correlated to the observed stratigraphy. At the Southern Nares Abyssal Plain site, turbidites are much thinner, harder to identify, and less distinct from the pelagic clays. Geotechnical properties there can not easily be correlated to the type of sediment.
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Thomas, Ellen. "DEEP-SEA BENTHIC FORAMINIFERA: BENTHO-PELAGIC COUPLING?" In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-354339.

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Mesick, Sharon M., Tiffany C. Vance, CJ Beegle-Krauss, and David Steube. "HabitatSpace: Multidimensional characterization of pelagic essential fish habitat." In OCEANS 2009. IEEE, 2009. http://dx.doi.org/10.23919/oceans.2009.5422222.

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Cojocaru, Dorian, Razvan Tudor Tanasie, and Anna Friesel. "Updating Engineering Education Technologies : UCV in PELARS." In 2017 27th EAEEIE Annual Conference (EAEEIE). IEEE, 2017. http://dx.doi.org/10.1109/eaeeie.2017.8768630.

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Astuti, Ni Nyoman Sri, Gede Ginaya, Ni Ketut Bagiastuti, and Ni Luh Eka Armoni. "Integrating Agro-tourism and Trekking for Accelerated Yielding of Pelaga Rural Tourism Development." In Proceedings of the International Conference On Applied Science and Technology 2019 - Social Sciences Track (iCASTSS 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/icastss-19.2019.14.

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Gannier, Alexandre, Sandra Fuchs, and Julie N. Oswald. "Pelagic delphinids of the Mediterranean Sea have different whistles." In 2008 New Trends for Environmental Monitoring Using Passive Systems (PASSIVE 2008). IEEE, 2008. http://dx.doi.org/10.1109/passive.2008.4786982.

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Frappier, Amy, Richard H. Lindemann, Zunli Lu, and Brian R. Frappier. "PALEOZOIC PELAGIC PROFILES: DEVONIAN DACRYOCONARID MICROFOSSILS FOR MULTIPROXY CHEMOSTRATIGRAPHY." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-356335.

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Skadsheim, A., V. Hoivangli, and C. Labes-Carrier. "Hydrocarbons and Surfactants: Ecotoxicology in a Marine Pelagic Food Chain." In SPE Health, Safety and Environment in Oil and Gas Exploration and Production Conference. Society of Petroleum Engineers, 1996. http://dx.doi.org/10.2118/35895-ms.

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Martinez-Ruiz, Francisca, Adina Paytan, Maria Teresa Gonzalez-Muñoz, Fadwa Jroundi, Maria Del Mar Abad, Phoebe J. Lam, Tristan J. Horner, and Miriam Kastner. "Role of Exopolymers in Pelagic Barite Precipitation in the Ocean." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1734.

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Hauge, Rune, Geir Pedersen, and Erling Kolltveit. "Fish finding with autonomous surface vehicles for the pelagic fisheries." In OCEANS 2016 MTS/IEEE Monterey. IEEE, 2016. http://dx.doi.org/10.1109/oceans.2016.7761206.

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Reports on the topic "Pelagra"

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van Rijn, J., A. T. M. van Helmond, and P. Molenaar. Pelagic blue whiting trawl innovation: hake grid. IJmuiden: Wageningen Marine Research, 2017. http://dx.doi.org/10.18174/425088.

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Couperus, A. S. Report on incidental bycatches in Dutch pelagic fishery - 2019. IJmuiden: Stichting Wageningen Research, Centre for Fisheries Research (CVO), 2020. http://dx.doi.org/10.18174/536967.

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Debrot, A. O., N. H. B. M. Kaag, M. F. Leopold, J. T. van der Wal, R. van Halewijn, D. M. C. Poppe, H. Verdaat, I. Bazuin, P. J. F. M. Verweij, and M. N. de Boer. Caribbean Pelagic Seabird Map Project : September 2020 status report. Den Helder: Wageningen Marine Research, 2020. http://dx.doi.org/10.18174/531515.

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St. Raykov, Violin. PELAGIC TRAWL SURVEYS IN THE BULGARIAN MARINE AREA 2017-2019. Prof. Marin Drinov Publishing House of Bulgarian Academy of Sciences, December 2020. http://dx.doi.org/10.7546/io.bas.2020.5.

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López-Contreras, Ana M., Matthijs van der Geest, Bea Deetman, Sander van den Burg, Hanneke Brust, and Truus de Vrije. Opportunities for valorisation of pelagic Sargassum in the Dutch Caribbean. Wageningen: Wageningen Food & Biobased Research, 2021. http://dx.doi.org/10.18174/543797.

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Johannes Fischer, Johannes Fischer. Tracking ‘flying penguins’: pelagic distribution and threats of South Georgia Diving Petrels. Experiment, July 2016. http://dx.doi.org/10.18258/7331.

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Afonina, E. Yu, and N. A. Tashlykova. Littoral and pelagic plankton communities high-altitude lake Shebety (Trans-Baikal Territory). LJournal, 2017. http://dx.doi.org/10.18411/2073-8129-2017-1-85-128-135.

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Mooney, T. A., Peter Tyack, Robin W. Baird, and Paul E. Nachtigall. Acoustic Behavior, Baseline Ecology and Habitat Use of Pelagic Odontocete Species of Concern. Fort Belvoir, VA: Defense Technical Information Center, September 2012. http://dx.doi.org/10.21236/ada573565.

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Mooney, T. A., Peter Tyack, Robin W. Baird, and Paul E. Nachtigall. Acoustic Behavior, Baseline Ecology and Habitat use of Pelagic Odontocete Species of Concern. Fort Belvoir, VA: Defense Technical Information Center, September 2013. http://dx.doi.org/10.21236/ada598605.

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Tyack, Peter L., T. A. Mooney, Robin W. Baird, and Paul E. Nachtigall. Acoustic Behavior, Baseline Ecology and Habitat Use of Pelagic Odontocete Species of Concern. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada598735.

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