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Dissertations / Theses on the topic 'Larval stage'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 June 2025

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1

Jones, A. E. "Stage-structured insect population models of larval competition." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381490.

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2

Cole, Alison G. "Cell-lineage of the larval CNS in the ascidian Ciona intestinalis, neurula stage through to hatched larva." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0021/MQ57277.pdf.

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3

Saunders, Laura Margaret. "Infection strategies of gamebird macroparasites." Thesis, University of Stirling, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341230.

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4

Matzilevich, David Avicenna. "Molecular analysis of superoxide dismutase and other antioxidant enzymes of Toxocara canis." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266226.

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5

Lewis, Solange Smita. "Identification of stress-responsive genes in the early larval stage of the fathead minnow pimephales promelas." Cincinnati, Ohio : University of Cincinnati, 2005. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1134665105.

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Thesis (Ph. D.)--University of Cincinnati, 2005.<br>Advisor: Stephen Jay Keller. Title from electronic thesis title page (viewed Apr. 22, 2009). Keywords: fathead minnow; differential display; larvae; real-time PCR; copper; zinc; thermal stress; stress; gene expression. Includes abstract. Includes bibliographical references.

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6

Stanley, Jenni Anne. "Ambient underwater sound: measuring the importance of spatial viariability and its effect on late stage larval crabs." Thesis, University of Auckland, 2011. http://hdl.handle.net/2292/6975.

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Recent studies have shown that underwater sound emanating from coastal reefs may be used for guiding the movements of a wide range of reef organisms to suitable settlement habitats. However, it is not known whether this underwater sound is also capable of mediating the settlement and metamorphosis processes in these organisms. The present study used laboratory- and field-based methods to determine whether ambient underwater sound is used as a settlement and metamorphosis cue in 10 species of larval crabs. The settlement stage larvae of five common crab species showed marked changes in swimming

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7

Lewis, Solange Smita. "Identification of Stress-Responsive Genes in the Early Larval Stage of the Fathead Minnow Pimephales Promelas." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1134665105.

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8

Almeida, Mara Cristina [UNESP]. "Desenvolvimento ontogenético larval e variabilidade populacional de Pimelodus britskii em um reservatório neotropical." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143104.

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Submitted by MARA CRISTINA DE ALMEIDA almeida (mara_macrisal@hotmail.com) on 2016-08-18T17:37:02Z No. of bitstreams: 1 TESE QUE VAI PARA BANCA final.pdf: 2216514 bytes, checksum: d47cfdeade85054b179e9c11c4c16e5b (MD5)<br>Rejected by Ana Paula Grisoto (grisotoana@reitoria.unesp.br), reason: Solicitamos que realize uma nova submissão seguindo a orientação abaixo: O arquivo submetido está sem a ficha catalográfica. O arquivo submetido não contém a folha de aprovação. A versão submetida por você é considerada a versão final da dissertação/tese, portanto não poderá ocorrer qualquer alter

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9

Lyncker, Lissa. "Abundance and Distribution of Early Life Stage Blue Crabs (Callinectes sapidus) in Lake Pontchartrain." ScholarWorks@UNO, 2008. http://scholarworks.uno.edu/td/848.

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I conducted a 12-month study of near-shore habitats in Lake Pontchartrain to assess spatiotemporal variation in the abundance of early life stage blue crabs (Callinectes sapidus). Collections were made using a 1 m2 throw trap and data showed that C. sapidus numbers varied over time and among sites. Two recruitment events occurred during the study. During the first recruitment in May-June, C. sapidus entered Lake Pontchartrain via the Inner Harbor Navigational Canal. In September-October, C. sapidus entered the Lake Pontchartrain via the Rigolets and Chef passes. My data suggest that C. s

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10

Foulon, Valentin. "Etude du phénomène d'adhésion chez la larve d'huître creuse Crassostrea gigas au stade pédivéligère." Thesis, Brest, 2018. http://www.theses.fr/2018BRES0094/document.

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Les huîtres présentent un cycle de vie en deux phases : les larves pélagiques s’adhérent avant de se métamorphoser pour une vie benthique.L’adhésion larvaire se fait au stade pédivéligère par sécrétion d’un bioadhésif produit par un organe spécialisé : le pied. Bien que l’huître Crassostrea gigas soit un organisme d’importance économique et écologique, et un modèle d’étude en biologie marine, le phénomène d’adhésion chez la larve pédivéligère est peu documenté. Une étude morphologique des larves pédivéligères par histologie et microscopie électronique a été réalisée, afin de décrire les glande

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11

Walsh, Harvey Joseph. "Distribution of fall / winter-spawned larval fish in relation to hydrographic fronts on the North Carolina shelf implications for larval transport mechanisms /." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-06262007-095953/.

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Fish population dynamics are partially determined by successful larval transport. Many fish in the southeast U.S. use estuaries as juvenile nursery habitat, but are spawned on the continental shelf. Favorable cross-shelf larval transport pathways for fall / winter-spawned species off North Carolina have been theorized to occur as a result of seasonal circulation patterns of currents and episodic onshore movement of water masses. As a result, hydrographic fronts which separate the water masses; including the outer-shelf front and mid-shelf front have been linked to cross-shelf larval transport

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12

Delves, C. J. "Developmental processes in filarial worms." Thesis, University of Liverpool, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377098.

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13

Reed, James Edward. "Characterisation of secretion in the infective stage larvae of filarial nematodes." Thesis, University of Liverpool, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343693.

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14

Boerseth, Cathrine. "Spatial dynamics and characterization of the ichthyoplankton community of natural and artificial reef environments on the coast of Paraná state, south Brazil." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/21/21134/tde-19122016-164859/.

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Artificial reefs (ARs) have been deployed on the inner shelf of Paraná State, south Brazil, to recuperate marine biodiversity and as protection against destructive trawling activities. The purpose of this study was to offer a first characterization of the ichthyoplankton community associated with the ARs and the adjacent archipelago of Currais. Two sampling methodologies were used; 1) plankton net attached to an underwater scooter and; 2) light-traps. A hydrodynamic model was used to study dispersal trajectories to and from the study area. Sampling was conducted between 31.07.14 and 04.04.16.

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15

Ménard, Louise. "Aspects of the ecology of the larval stages of Cyathocotyle bushiensis Khan 1962 (Digenea)." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66176.

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16

Medrano, Jennifer Centurion. "Chemotactic Response of Lumbricus terrestris Coelomocytes to Larval and Adult Stages of Rhabditis pellio." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc5507/.

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Experiments were performed to assess the suitability of Rhabditis pellio, a nematode found in earthworms, as a challenge organism for use in development of a biomarker assay to determine the potential of chemicals to suppress the immunocompetence of the non-specific immune system. To accomplish this goal, information on the life cycle of R. pellio was determined; including effects of incubation time and temperature on growth rates; along with information on the immune response elicited in the earthworm, Lumbricus terrestris. Immune parameters measured were coelomocyte migration toward and atta

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17

Albright, Rebecca. "Effects of Ocean Acidification on Early Life History Stages of Caribbean Scleractinian Corals." Scholarly Repository, 2011. http://scholarlyrepository.miami.edu/oa_dissertations/574.

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Ocean acidification (OA) refers to the increase in acidity (decrease in pH) of the ocean’s surface waters resulting from oceanic uptake of atmospheric carbon dioxide (CO2). Mounting experimental evidence suggests that OA threatens numerous marine organisms, including reef-building corals; however, few studies have focused on the effects on early life history stages. Coral recruitment is critical to the persistence and resilience of coral reefs and is regulated by several early life processes, including: larval availability (gamete production, fertilization, etc.), larval settlement, post-settl

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18

Hopkins, Susan Marian. "Studies on survival and development of the larval stages of the trichostrongyle nematode "Nematospiroides dubius." Thesis, Royal Holloway, University of London, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549680.

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19

Chiu, Man Ying. "Biological and ecological processes that intervene the larval and juvenile stages of the gastropod crepidula onyx /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?AMCE%202007%20CHIU.

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20

Duro, Lia Susana Lourenço Simões. "Parasitismo gastrintestinal em animais da Quinta Pedagógica dos Olivais. Especial referência aos mamíferos ungulados." Bachelor's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2010. http://hdl.handle.net/10400.5/2624.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>O presente estudo resultou do trabalho realizado durante e após o estágio curricular do Mestrado Integrado em Medicina Veterinária, na Quinta Pedagógica dos Olivais, no concelho de Lisboa. Numa primeira parte desta dissertação, efectuou-se uma monografia, relativa às parasitoses gastrintestinais mais relevantes dos mamíferos ungulados (suínos, bovinos, pequenos ruminantes e equídeos). Quanto à segunda parte desta dissertação, consistiu num estudo de campo e de laboratório sobre as parasitoses gastrintestinais do efectivo de mamífero

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21

Bruno, Trezia Ieda Ballerini. "Infecção de Biomphalaria glabrata com Angiostrongylus costaricensis : desenvolvimento larval e resposta hemocitaria." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314681.

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Orientador: Eliana Maria Zanotti-Magalhães<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-05T18:40:54Z (GMT). No. of bitstreams: 1 Bruno_TreziaIedaBallerini_D.pdf: 6507064 bytes, checksum: 5515a1ea19ac4cfea55f25a3da2f2efa (MD5) Previous issue date: 2005<br>Resumo: Experimentalmente, Biomphalaria glabrata pode ser utilizada como hospedeiro intermediário do nematódeo Angiostrongylus costaricensis, responsável pela angiostrongilíase abdominal. Esta zoonose, descrita no Brasil principalmente nos estados sulinos, pode acometer

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22

Chism, Billy Dell. "Laboratory evaluation of the horizontal movement of pyriproxyfen to larval microcosms by gravid Aedes albopictus (Skuse) and Aedes triseriatus (Say)." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010530-101221.

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<p>Horizontal movement of the insect growth regulator (IGR) pyriproxyfen to larval microcosms by gravid container-inhabiting mosquitoes, Aedes albopictus (Skuse) and Aedes triseriatus Say, was evaluated under laboratory conditions. In larval susceptibility bioassays determining emergence inhibition (EI), both species were found to be highly susceptible to the IGR. Aedes albopictus exhibited an EI50 of 0.200 ppb, while Aedes triseriatus was 7 and 3.5x more susceptible with an EI50 of 0.0288 ppb. A randomized complete block experimental design was used for each species to evaluate the horizontal

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23

Gregory, William Francis. "Cloning and characterisation of genes expressed by the third stage larvae of the parasitic nematode Brugia malayi." Thesis, University of Edinburgh, 2000. http://hdl.handle.net/1842/14953.

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Reverse transcription polymerase chain reaction (RT-PCR) of RNA from the infective larval stages of <i>Brugia malayi</i> with the nematode-specific 5' spliced leader sequence and oligo d(T) has been used to identify genes expressed during early larval stages. Products resolved on agarose gels show a number of prominent bands and cloning of these bands has revealed a total of 14 genes. Of these, four genes have been analysed in detail. One highly stage-specific transcript <i>Bm-cpi</i>-1, a cystatin-type cysteine proteinase has been characterised in parallel to a second, constitutively expresse

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24

Silver, Gregory Shell. "Investigations of Larval Pacific Lamprey Entosphenus tridentatus Osmotic Stress Tolerance and Occurrence in a Tidally-Influenced Estuarine Stream." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2358.

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Pacific lamprey is a culturally valuable species to indigenous people, and has significant ecological importance in freshwater and marine ecosystems. Over the past several decades, constrictions in range and reductions in Pacific lamprey abundance have been observed in Western North America, and may be indicators of range-wide declines. In the face of declining populations, the U.S. Fish and Wildlife Service has partnered with tribal, state, federal, and local entities to implement a regional Pacific lamprey conservation agreement aimed at reducing threats to Pacific lamprey and improving thei

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25

Paula, Salete de. "Caracterização do desenvolvimento larval do pacu, Piaractus mesopotamicus (Holmberg, 1887): morfometria e crescimento isométrico." Universidade Estadual do Oeste do Parana, 2012. http://tede.unioeste.br:8080/tede/handle/tede/733.

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Made available in DSpace on 2017-07-10T14:38:37Z (GMT). No. of bitstreams: 1 Salete de Paula.pdf: 1167747 bytes, checksum: 9705df79d28b7d3992e3d6910e9ce124 (MD5) Previous issue date: 2012-09-24<br>Fundação Araucária<br>This study describes the development and allometric growth patterns of larval Piaractus mesopotamicus from induced reproduction. From hatching until the 19th day, twenty individuals were selected for eight stage of development (yolk sac larval, preflexion, initial of flexion, flexion, end of flexion and post flexion). Later, morphometric measurements were taken of each individ

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26

Balfour, David Leigh. "Ontogenetic Changes and Environmental Hypoxia: Responses of Two Fish Species to Low Oxygen Concentrations at Early Life Stages." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/26467.

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Hypoxia refers to any condition in which the water is less than fully saturated with oxygen. Although it is generally accepted that adults are more tolerant of hypoxic conditions than larval stages, there is little information to support this assumption. To determine whether reduced concentrations of dissolved oxygen (DO) affect fishes differently during various early life stages, I examined the responses of two species of fish (fathead minnows (Pimephales promelas) and rainbow trout (Oncorhynchus mykiss)) exposed to low dissolved oxygen concentrations at different ages during the first 100

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27

Daniels, Carly. "Optimisation of the rearing diets for early life stages of the European lobster, Homarus gammarus, to enhance growth, survival and health using biotic dietary supplements." Thesis, University of Plymouth, 2011. http://hdl.handle.net/10026.1/551.

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The series of experiments that comprises this thesis consider the use of prebiotics and probiotics to improve success in European lobster Homarus gammarus culture. Research was conducted at the National Lobster Hatchery and The University of Plymouth, UK between April 2007 and March 2010. Great potential was revealed for the application of biotics as dietary supplements in the culture of larval and juvenile H. gammarus. Specific biotics, namely; prebiotic mannon oligosaccharide (MOS) and probiotic Sanolife® (Bacillus spp.) were revealed to increase growth and survival during the culture of ear

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28

Smith, Kent James. "Enhanced Cold Tolerance of Diapause-Destined vs Non-Diapause-Destined Larval Stages of the Flesh Fly, Sarcophaga Crassipalpis(Diptera: Sarcophagidae)." Oxford, Ohio : Miami University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1172780125.

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29

Thoday, A. "Studies on the ultrastructure of the pituitary of a non parasitic lamprey Lampetra planeri throughout the larval, metamorphosing and adult stages." Thesis, Open University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380056.

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30

Lopes, Bruno de Sousa. "História natural e performance larval de Oospila pallidaria (Schaus, 1897) (Lepidoptera, Geometridae, Geometrinae): uma mariposa esmeralda do Cerrado." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/59/59131/tde-20072016-181713/.

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São estimadas 90 mil espécies de insetos para o Cerrado, o segundo maior bioma brasileiro, com enorme heterogeneidade de habitats e rica fauna. Dentre esses insetos, os Lepidoptera representam cerca de 10% do total de espécies. Entretanto, estudos sobre seus imaturos (ovo, larva e pupa) ainda são incipientes para o bioma, principalmente sobre as mariposas, cujas histórias naturais de muitas espécies ainda são desconhecidas. A falta desses estudos faz com que sejam ignoradas as interações multitróficas em que esses organismos estão envolvidos e, portanto, inviabiliza futuros estudos relacionado

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31

Richardson, Shanthini Devi. "Studies on the life-cycle of the digenetic trematode Rhipidocotyle campanula (Dujardin, 1845) (Gasterostomata: bucephalidae) with particular reference to the larval stages." Thesis, University of Leeds, 1990. http://etheses.whiterose.ac.uk/723/.

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The life-cycle of Rhipidocotyle campanula (Dujardin, 1845) has been experimentally demonstrated and the species identity confirmed. Sporocysts were recovered from digestive glands of the freshwater-mussel Anodonta anatina, and in heavily infected 'hosts from the reproductive, system. Both cercariae and glochidia are released simultaneously in mussels where the reproductive system is partly invaded by sporocyst tubules. The development of the cercariae in the sporocyst tubules has been studied briefly fusing histological and histochemical methods. The liberation of cercariae varied- between >10

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32

Garcia, Sara Marie. "Sublethal Effects of Crude Oil and Chemical Dispersant on the Eastern Oyster (Crassostrea virginica) at Multiple Life History Stages." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7624.

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Oil spills in the marine environment can threaten vulnerable ecosystems that support ecologically and economically significant organisms, such as the eastern oyster (Crassostrea virginica), in coastal habitats. The use of chemical dispersant (Corexit 9500) was applied as a cleanup effort in response to the Deepwater Horizon blowout to minimize crude oil slicks, but also resulted in increased concentrations of polycyclic aromatic hydrocarbons in the water column. The effects of increased soluble fractions of crude oil and dispersant components may be harmful to marine organisms. This study aime

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33

Ambu, Zaira. "Impact of Ocean Acidification on respiration and regenerative capabilities of Amphiura filiformis and on Ostrea edulis larvae stages." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2113/.

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34

Lara, Monica R. "Sensory development in settlement-stage larvae of Caribbean labrids and scarids: A comparative study with implications for ecomorphology and life history strategies." W&M ScholarWorks, 1999. https://scholarworks.wm.edu/etd/1539616729.

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The sensory capabilities of settlement-stage fishes are unknown but this information is necessary to studies of larval settlement and recruitment. The morphology of the cephalic lateral line, eye and external olfactory organ of thirteen species of settlement-stage Caribbean labroids was described. Scanning electron images of the cephalic lateral line neuromasts, lateral line canals and olfactory epithelia and histological studies of the retinae and morphological measurements of visual acuity were used to assess the level of sensory development attained at settlement. The sensory capabilities o

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35

Noble, Thomas H. "Effects of nitric and sulfuric-nitric acid solutions on mortality and development of aedes triseriatus mosquito larvae and pupae." Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/452402.

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An acid rain simulation was created under laboratory conditions to study the effects of mortality rates and developmental time of Aedes triseriatus (Say) mosquito larvae. Two hundred-forty instar 1 mosquitoes were placed into separate 120 ml glass jars containing rain water adjusted to pH 2, 3, 4, 5, 6, and 7 with a nitric acid solution. A second part of the experiment was set up like the first except a 70 percent to 30 percent sulfuric-nitric acid solution was used to adjust pH levels. Mortality and developmental time was observed until the insects reached maturity or died.No significant d

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36

Gravil, Helen Ruth. "Studies on the biology and ecology of the free swimming larval stages of Lepeophtheirus Salmonis (Kroyer, 1838) and Caligus Elongatus Nordmann, 1832 (Copepoda: Caligidae)." Thesis, University of Stirling, 1996. http://hdl.handle.net/1893/2380.

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The study investigated biological and ecological parameters controlling and influencing the production and distribution of the free-swimming larval stages of Lepeophtheirus salmonis (Kroyer, 1838), and to a lesser extent Caligus elongatus Nordmann 1832, in the natural environment The reproductive output of L. salmonis was influenced by seasonal effects. The number of eggs produced per brood showed an inverse relationship with increasing temperature. The number of eggs per brood was also influenced by adult female body size (cephalothorax length), which in itself exhibited an inverse relationsh

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Wisch, Lucas Nataniel. "FLUTUAÇÃO POPULACIONAL DOS PRINCIPAIS NOCTUÍDEOS E DISTRIBUIÇÃO VERTICAL DE OVOS E LARVAS NA CULTURA DA SOJA." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2011. http://tede2.uepg.br/jspui/handle/prefix/2215.

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Made available in DSpace on 2017-07-25T19:29:49Z (GMT). No. of bitstreams: 1 LucasNatanaelWisch.pdf: 1535950 bytes, checksum: 7b05791c9aa7a46f71ea7e20db744589 (MD5) Previous issue date: 2011-10-31<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Soybean is one of the main oleaginous crop produced in Brazil. Studies on populational dynamic and immature stage vertical distribution in soybean canopy are very important to improve technology application and control timing. We studied population dynamics and vertical distribution of eggs and larvae of the velvetbean caterpillar, A

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Chotipuntu, Piyapong, and n/a. "Salinity sensitivity in early life stages of an Australian freshwater fish, Murray cod (Maccullochella peelii peelii Mitchell 1838)." University of Canberra. Resource, Environmental & Heritage Sciences, 2003. http://erl.canberra.edu.au./public/adt-AUC20060331.115030.

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The Murray cod (Maccullochella peelii peelii Mitchell 1838) is Australia�s largest freshwater fish. Once highly abundant in the Murray-Darling river system, populations have drastically declined in recent decades. Many causes for this decline have been proposed, including over-fishing, habitat loss and altered river flow regimes. This study hypothesised that elevated salinities have led to selective mortality in some developmental stages, which have in turn depleted stock recruitment and adult populations. The objectives of this study were to determine the optimal, threshold, upper sublethal a

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Malarky, Lacey. "Faunal Composition and Distribution of Pelagic Larval and Juvenile Flatfishes (Teleostei: Pleuronectiformes) in the Northern Gulf of Mexico: Connectivity Between Coastal and Oceanic Epipelagic Ecosystems." NSUWorks, 2015. http://nsuworks.nova.edu/occ_stuetd/397.

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Pleuronectiformes (flatfishes) occur throughout the global oceans, and have high ecological and commercial importance in some areas. Though much is known regarding life history, abundance, and distribution for the benthic adult stage of flatfish species, much less is known about the pelagic larval phases of flatfishes in the open ocean. Taxonomic uncertainty and limited sampling in the oceanic Gulf of Mexico contribute to data gaps with respect to the distribution of early life history stage of flatfishes in this region. Knowledge of the faunal composition, abundance and distribution of larval

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40

Blenzar, Abdelafi. "Effets d'un régulateur de croissance, le fénoxycarbe, sur le développement des larves du dernier stade de Psylla pyri (L.)." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37603071m.

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41

Vagner, Marie. "Orientation des processus métaboliques du bar européen (Dicentrarchus labrax) par un conditionnement nutritionnel au stade larvaire." Brest, 2008. http://www.theses.fr/2008BRES2009.

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Le but était de voir s’il est possible de stimuler les capacités de désaturation des acides gras pour la synthèse d’HUFA n-3 des juvéniles de bar par un conditionnement précoce. Lors d’une expérience 1 (F1), quatre groupes de larves ont reçu deux régimes de J6 à J45: LH (0,8% EPA+DHA) et HH (2,2%) à 16 ou 22°C. Après une période intermédiaire (2,7%, 19°C), la capacité des juvéniles à s’adapter à un régime carencé (0,5%) à été testée pendant 60 jours (19°C). L’expérience 2 (E2) avait pour but d’amplifier la réponse obtenue (une seul température d’élevage (19°C) et une gamme plus étendue de tene

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BLENZAR, ABDELALI. "Effets d'un regulateur de croissance, le fenoxycarbe, sur le developpement des larves du dernier stade de psylla pyri l. (homoptera : psyllidae)." Toulouse 3, 1987. http://www.theses.fr/1987TOU30065.

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Le fenoxycarbe ro. 13-5223 ethyl (2-( p- phenoxy) ethyl ) carbamate, un regulateur de croissance des insectes (igr) a ete teste pour le controle des larves du dernier stade du psylle du poirier (psylla piry l. ), a la suite d'une application topique de differentes doses. La dl50 a ete determinee. Le fenoxycarbe s'est revele tres efficace, un fort % (60-80%) des individus meurt dans les jours qui suivent le traitement avec une dose de 5 ou 50 ug/larve. Le traitement provoque une perturbation de l'ecdysis et induit la formation d'individus intermediaires entre une larve et un adulte.

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Vignier, Julien. "Evaluation of the toxicity of the Deepwater Horizon oil and associated dispersant on early life stages of the ecologically and economically important Eastern oyster, Crassostrea virginica." Thesis, Brest, 2015. http://www.theses.fr/2015BRES0004/document.

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L’explosion du forage et de la plate-forme pétrolière Deepwater Horizon (DWH) le 20 Avril 2010 a entrainé la plus importante catastrophe pétrolière de l’histoire des Etats-Unis, avec des quantités sans précédent de pétrole (779,000 T) et de gaz relâchées continuellement dans le Golfe du Mexique durant près de 3 mois. En retour et comme moyen de réponse, 8 million L de dispersant chimique (principalement Corexit 9500A®) furent utilisés pour disperser les nappes, dont 2.9 million L furent injectés directement à la tête du puits à 1500 m de profondeur. La marée noire coïncida avec la saison de po

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Silva, Bianca Carvalho da. "Avaliação da toxicidade de quatro solventes e um surfactante, e dos fenilpropanoides eugenol e (E)-cinamaldeído sobre larvas e pupas de Musca domestica Linnaeus, 1758 (Diptera: Muscidae)." Universidade Federal de Juiz de Fora (UFJF), 2016. https://repositorio.ufjf.br/jspui/handle/ufjf/4062.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-04-17T11:56:32Z No. of bitstreams: 1 biancacarvalhodasilva.pdf: 1674027 bytes, checksum: c5eec1256778b071c02c01d37079c6bc (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-04-18T13:39:20Z (GMT) No. of bitstreams: 1 biancacarvalhodasilva.pdf: 1674027 bytes, checksum: c5eec1256778b071c02c01d37079c6bc (MD5)<br>Made available in DSpace on 2017-04-18T13:39:20Z (GMT). No. of bitstreams: 1 biancacarvalhodasilva.pdf: 1674027 bytes, checksum: c5eec1256778b071c02c01d37079c6bc (MD5) Previous

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Chang, Zisong. "Das Dauerstadium als Präadaptation." Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17095.

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Wir fanden konservierte molekulare Signaturen der Regulation durch Δ7-DA und Ascarosid bei Dauer- und infektiösen Larven. Danach wurde die hohe Konservierung durch unsere Analyse in Dauer- und Postdauer-Stadium zwischen den zwei nah verwandten freilebenden Arten C. elegans und C. briggsae identifiziert. Das heißt, dass die relative Veränderung auf mRNA- oder Protein- Ebene zwischen zwei Arten stark korreliert ist. Aber die relative Veränderung innerhalb derselben Art zeigt keine hochgradige Korrelation zwischen mRNA- und Protein-Ebene. Unsere Ergebnisse zeigen in C. elegans Dauerlarven die sig

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Hempel, Esther. "Controlling Factors Of Life Cycle And Distribution Of Chironomid Key Species In The Mesotrophic Saidenbach Reservoir." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-72141.

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In den Jahren 2005 bis 2010 erfolgte im Rahmen der Erarbeitung der vorliegenden Dissertationsschrift eine ökologische Untersuchung der Chironomidenfauna in der Talsperre Saidenbach (Sachsen, Erzgebirge). Drei Arten mit hoher Abundanz konnten bei der umfassenden Artenanalyse im Jahr 2005 ermittelt werden: Procladius crassinervis, P. choreus und Chironomus anthracinus. Zusätzlich wurde die Art C. plumosus aufgrund ihrer engen Verwandtschaft zu C. anthracinus in die Untersuchung einbezogen. Die Arbeit ist auf vier Schwerpunkte fokussiert, wobei die Larven und Puppen der vier Arten analysiert wurd

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Laabs, Eva-Maria Wiebke [Verfasser]. "Transcriptome analysis of preadult hypobiotic and non-hypobiotic L5 stages as well as in vitro studies on the sexual maturation of preadult larvae of the bovine lungworm Dictyocaulus viviparus / Eva-Maria Wiebke Laabs." Hannover : Bibliothek der Tierärztlichen Hochschule Hannover, 2011. http://d-nb.info/1018968520/34.

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Boukadida, Ammar Khouloud. "Etude des réponses de la moule Mytilus spp exposée à des stress métallique et thermique durant les stades embryo-larvaires." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0571/document.

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Les écosystèmes marins côtiers sont soumis à des pressions anthropiques et naturelles qui placent les organismes aquatiques dans des situations de multi-stress.Ce travail doctoral avait pour objectif d’évaluer l’impact et de mieux comprendre les mécanismes d’adaptation des premiers stades de vie de moule exposés à deux facteurs environnementaux majeurs : la pollution métallique et l’accroissement des températures des eaux marines côtières. Les effets induits par l’exposition à deux polluants métalliques modèles (Cu et Ag) et à un stress thermique modéré seuls ou en combinaison ont été évalués

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Kiselyova, Tatiana. "Systematics of Dermestidae (Insecta: Coleoptera) based on the larval stage." 2003. http://purl.galileo.usg.edu/uga%5Fetd/kiselyova%5Ftatiana%5Fg%5F200305%5Fphd.

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Thesis (Ph. D.)--University of Georgia, 2003.<br>Directed by Joseph V. McHugh. Includes an article published in The coleopterists bulletin, and articles submitted to The coleopterists bulletin, and Annales zoologici. Includes bibliographical references.

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詹宗偉. "Taxonomic studies of the larval stage of Aeshnidae(Odonata) in Taiwan." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/83881845341361596870.

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