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Teses / dissertações sobre o tema "Larvae"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

Englund, Göran. "Competition in caddis larvae." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 1992. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-101356.

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This thesis deals with behavioural strategies used by caddis larvae in pairwise contests and when selecting microhabitats. Effects of caddis larvae on survival and habitat selection of other insect taxa have also been studied. The behaviours used by Arctopsyche ladogensis larvae fighting for nets, and Agrypnia pagetana larvae fighting for cases, agreed well with predictions from the sequential assessment game, which is an ESS model of animal fighting behaviour. Establishment by net-spinning Hydropsyche siltalai larvae on artificial substrates was highest at intermediate densities of residents.

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2

Fulmore, Helena Sasha. "Desperate Coral Larvae? Behavioral Responses to Settlement Cues in Aging Agaricia agaricites Larvae." Thesis, NSUWorks, 2019. https://nsuworks.nova.edu/occ_stuetd/519.

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The global stressors of ocean warming and acidification, as well as local stressors such as eutrophication, overfishing, and coastal construction, have all contributed to the severe decline in coral populations worldwide. Recovery of coral reefs depends partly on recruitment, which relies on the response of larvae to settlement cues indicative of habitat quality; however, it remains unclear whether recruitment in disturbed areas will be compromised. Specifically, as reefs become more disturbed and dominated by macroalgae, it is important to understand larval behavior in response to changes in

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3

Greenfield, Bethany Patricia Jane. "Metarhizium pathogenesis of mosquito larvae." Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa42819.

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4

DiBacco, Claudio. "Bay-ocean exchange of crab larvae : the roles of larval behavior, origins, distribution and physical processes /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3035924.

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5

Lindley, John Alistair. "Spatio-temporal distributions of pelagic larvae and post-larvae of decapod crustacea in seas around Britain." Thesis, University of Plymouth, 1998. http://hdl.handle.net/10026.1/2464.

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The geographical distributions and seasonal occurrences of decapod larvae and pelagic post-larvae in continuous plankton recorder (CPR) samples over a 3-year period were analysed and described. During this period, the survey covered large areas of the north-eastern Atlantic Ocean and adjacent continental shelf waters, including the English Channel and the North, Irish and Celtic Seas. Multivariate analysis provided the basis for classifying the distributions of 36 of the most abundant taxa (species, genera or subfamily) into groups. These groupings demonstrated the significance of bathymetry a

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6

Johnson, Kevin Brett. "Predation on planktonic marine invertebrate larvae." Thesis, Thesis (Ph. D.)--University of Oregon, 1998, 1998. http://hdl.handle.net/1794/10086.

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7

Silva, Najara da [UNESP]. "Caracterização molecular e expressão de aminopeptidase (APNs) de Ostrinia nubilalis HÜBER 1796 (Lepidoptera: Crambidae)." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/108433.

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Made available in DSpace on 2014-08-13T14:50:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-06-21Bitstream added on 2014-08-13T18:01:08Z : No. of bitstreams: 1 000738502_20150619.pdf: 168048 bytes, checksum: 67974831ca78b6d925c01cebfef1a94c (MD5) Bitstreams deleted on 2015-06-22T12:53:50Z: 000738502_20150619.pdf,. Added 1 bitstream(s) on 2015-06-22T12:54:45Z : No. of bitstreams: 1 000738502.pdf: 1467766 bytes, checksum: 7c0de265290f7067173746101d9a2b71 (MD5)<br>Aminopeptidases N (APNs) são uma classe de ectoenzimas presentes no intestino médio das larvas de lepidópteros, que part

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8

Silva, Najara da. "Caracterização molecular e expressão de aminopeptidase (APNs) de Ostrinia nubilalis HÜBER 1796 (Lepidoptera: Crambidae) /." Jaboticabal, 2013. http://hdl.handle.net/11449/108433.

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Orientador: Manoel Victor Franco Lemos<br>Banca: Lucia Maria Carareto Alves<br>Banca: Vitor Fernandes Oliveira da Miranda<br>Banca: Cristina Lacerda Soares Petrarolha Silva<br>Banca: Renato Pariz Maluta<br>Resumo: Aminopeptidases N (APNs) são uma classe de ectoenzimas presentes no intestino médio das larvas de lepidópteros, que participa no cenário do modo de ação das toxinas Bacillus thuringiensis (Bt). No presente trabalho, duas aminopeptidases (OnAPN5 e OnAPN6) foram clonadas a partir células do intestino de Ostrinia nubilalis, lepidópteros praga do milho dos climas temperados. As duas sequ

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9

Coldebella, Ivanir José. "Índices zootécnicos, reprodutivos e parâmetros bioquímicos de fêmeas de jundiá Rhamdia quelen alimentadas com diferentes níveis de proteína e lipídio." Universidade Federal de Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/4320.

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In this study were evaluated the zootechnics, reproductive aspects and biochemical s parameters aspects of female catfishes fed with three lipids and proteins levels on diets. Two experiments were conducted, the first being held between July 15th and October 15th, 2008, followed by a period of 14 days to create the post-larvae. We used 66 females with 14 months old (weight between 465,1 and 690,3g). 18 females were slaughtered for evaluation of biochemical s and histological parameters and 54 were distributed on six 1m³-net cage, fed at 9 a.m. and 4 p.m., at ease, during 90 days, with pellet

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10

Bales, Michael Thomas. "Adaption to temperature in caddis larvae (Trichoptera)." Thesis, Keele University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.232893.

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The occunence of temperature acclimation was investigated in a range of caddis species. A closed bottle method was used for the majority of the respiration experiments, a flow-through respirometer being designed for the remaining experiments. Temperature acclimation was demonstrated in eight out of twelve species studied. Increased ability to compensate was associated with increased ecological distribution. The hydropsychids were shown to have a greater ability to acclimate than polycentropodids with similar distributions. No relationship was apparent between the interspecific differences in t

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11

Harrison, J. D. "Aspects of the ecology of amphibian larvae." Thesis, Cardiff University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356737.

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12

Jones, Huw. "Xenobiotic metabolism and zebrafish (danio rerio) larvae." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/886/.

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There is a requirement for the characterisation of the metabolism of xenobiotics in zebrafish larvae, due to the application of this organism to toxicity testing and ecotoxicology. Genes similar to mammalian cytochrome P450 (CYP) 1A1, CYP2B6, CYP3A5 and UDP-lucuronosyl-transferase (UGT) 1A1 were demonstrated to be expressed during normal embryonic development, with increased expression post hatching in Wik strain zebrafish larvae (72 hours post fertilisation, hpf). Activities towards ethoxy-resorufin, 7-ethoxy-coumarin and octyloxymethylresorufin, using an in vivo larval assay, were also detec

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13

Juraimi, Salmah. "The Esterases of the Galleria Mellonella Larvae." TopSCHOLAR®, 1986. http://digitalcommons.wku.edu/theses/1736.

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Some properties of esterases of the greater wax moth larvae, Galleria mellonella (L.) were examined and the enzyme partially purified. Tris buffer was chosen as the buffer system over veronal buffer. The former causes less hydrolysis of the acetylsalicylic acid. Esterase activities were determined with acetylasalicylic acid in tris buffer (00.05 M, pH 7.85 with 0.1 M EDTA) and with acetyl-p-hydroxybenzoic acid in the same buffer. The enzyme was partially purified by combination of acetone powder preparation, ammonium sulfate precipitation, ion-exchange chromatography, and gel filtration. The

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14

Le, Vay Lewis. "Nutritional studies on fish and crustacean larvae." Thesis, Bangor University, 1994. https://research.bangor.ac.uk/portal/en/theses/nutritional-studies-on-fish-and-crustacean-larvae(7c8004f1-ea27-4a8e-9d38-30c32f9ace4f).html.

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The effects of live foods and microencapsulated diets on growth, survival, body composition and digestive physiology of fish (mirror carp, Cyprinus =LQ) and penaeid shrimp ftna= japQnim) larvae were examined. Raising the lipid content of a microencapsulated enrichment diet from 18.3% to 33.6% improved accumulation of highly unsaturated fatty acids (HUFA) and total lipid in rotifers. Lipids in rotifers were assimilated by carp larvae, as demonstrated by improved growth and accumulation of HUFA in larvae reared on rotifers pre-fed the "high-lipid" diet. Poor diet digestibility coupled with low i

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15

Timmins, William Andrew. "Control of feeding in Manduca sexta larvae." Thesis, University of Bath, 1988. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380387.

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16

Krug, Patrick Joseph. "Chemical and larval ecology of opisthobranch molluscs : variable development modes and settlement cues for larvae of Alderia modesta /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9907826.

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17

Taha, Awad Khalafalla. "Ecology of Aedes cantans (Meigen) larvae and effects of Bacillus thuringiensis var. israelensis on mosquito larvae and non-target organisms." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357080.

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18

Rice, Kevin Barry. "Cascading Ecological Impacts of Emerald Ash Borer: Tritrophic Interactions Between Prickly Ash, Giant Swallowtail Butterfly Larvae, and Larval Predators." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366373364.

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19

Braun, Andreas 1983. "Multisensory integration and decision-making in Drosophila larvae." Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/565760.

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Numerous studies have shown that a wide range of behaviors from sensory processing to motor control involve near-optimal probabilistic inference. Most of these studies have focused on vertebrates, suggesting that the ability to perform probabilistic inference requires large nervous systems. Yet, neural theories of probabilistic inference can be implemented with the most basic neural networks. To explore the possibility that organisms with small nervous systems perform near-optimal probabilistic inference, I tested the ability of Drosophila larvae to integrate information from unisensory and mu

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20

Mason, Benjamin M. "Evidence for Opsin-Based Photosensitivity in Coral Larvae." Scholarly Repository, 2011. http://scholarlyrepository.miami.edu/oa_dissertations/524.

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Photosensitive behaviors and circadian rhythms are well documented in reef-building corals and their larvae, yet photoreceptive structures and opsins have not been described in these organisms. Here I provide evidence for red sensitivity in several species of coral larvae. Behavioral experiments with two Caribbean corals, Porites astreoides and Acropora palmata demonstrated that larvae settle and metamorphose at a greater frequency on red substrata than on similar substrata of other colors. Attachment to red substrata was not observed when larvae were maintained in the dark, suggesting that r

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21

Wang, Zhi. "Functional study of hemolymph coagulation in Drosophila larvae." Doctoral thesis, Stockholms universitet, Institutionen för molekylärbiologi och funktionsgenomik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75179.

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Many pathogen infections in nature are accompanied by injury and subsequent coagulation. Despite the contribution of hemolymph coagulation to wound sealing, little is known about its immune function. Based on the molecular knowledge of Drosophila innate immunity, this thesis investigated the immune function of clot both in vitro and in vivo, the immune relevant genes involved in a natural infection model, involving entomopathgenic nematodes (EPN) and the factors leading to crystal cell activation. Transglutaminase (TG) and its substrate Fondue (Fon) have been identified as bona fide clot compo

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22

Kamarudin, Mohd Salleh. "Studies on the digestive physiology of crustacean larvae." Thesis, Bangor University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386958.

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23

Pan, Anon Maria. "Decapod crustacean larvae in Scottish (UK) coastal plankton." Thesis, University of Aberdeen, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499700.

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Decapod larval assemblages were studied at two sites in Scottish coastal waters, Stonehaven and Loch Ewe. Plankton data from 4.5 years at Stonehaven and from 2 years at Loch Ewe were analysed, allowing the study of decapod larval cycles, species composition and seasonality at these locations. An 8 years time series of weekly data on total abundance of decapod larvae from Stonehaven and 4 years and 8 months time series from Loch Ewe were also studied. The influence of environmental variables in the patterns observed was analysed using mixed modelling techniques. The results showed differenc

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24

Chan, Ying-shan, and 陳映姗. "Effects of silver nanoparticles on marine invertebrate larvae." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/208175.

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Silver nanoparticles (AgNPs) have gained much popularity in consumer products due to their strong antimicrobial ability. The majority of research concerning the biological effects of AgNPs has been limited to humans, mammals and freshwater organisms. Marine organisms, especially invertebrates, have been studied to a lesser extent. The objective of this thesis was to understand the effects of AgNPs on the marine benthic invertebrates. Specifically, we focused on the acute and sub-lethal toxicity of two AgNPs (Oleic acid coated AgNP (OAgNP) and Polyvinylpyrrolidone coated AgNP (PAgNP)) on marine

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25

Panagiotaki, Panagiota. "The development of size variation in flatfish larvae." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317241.

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26

Baldwin, Carole Christine. "Larvae and relationships of epinepheline serranids (Teleostei: Percoidei)." W&M ScholarWorks, 1992. https://scholarworks.wm.edu/etd/1539616557.

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Morphology is described for larvae of Diploprion bifasciatus, Belonoperca chabanaudi, Jeboehlkia gladifer, and Grammistes sexlineatus of the serranid subfamily Epinephelinae. Known larvae of all epinephelines are compared. Larval epinephelines differ in patterns of pigmentation, head spination, sequence of fin formation and morphology of elongate (often spectacularly so!) dorsal-fin spines. Relationships among epinepheline genera are investigated based on phylogenetic analysis of larval and adult morphology. Five monophyletic tribes are cladistically delineated, and relationships among tribes

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27

Hong, S. Y. "Phylogenetic studies on the larvae of decapod crustaceans." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233923.

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28

Miner, Benjamin G. "Evolution of phenotypic plasticity insights from echinoid larvae /." Connect to this title online, 2003. http://purl.fcla.edu/fcla/etd/UFE0001450.

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29

Rethwisch, Michael D., and S. Sherwood Winans. "Control of Liriomyza trifolii Larvae in Head Lettuce." College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/214282.

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30

Clark, Matthew. "Neural Basis of Locomotion in Drosophila Melanogaster Larvae." Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23170.

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Drosophila larval crawling is an attractive system to study patterned motor output at the level of animal behavior. Larval crawling consists of waves of muscle contractions generating forward or reverse locomotion. In addition, larvae undergo additional behaviors including head casts, turning, and feeding. It is likely that some neurons are used in all these behaviors (e.g. motor neurons), but the identity (or even existence) of neurons dedicated to specific aspects of behavior is unclear. To identify neurons that regulate specific aspects of larval locomotion, we performed a genetic screen to

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31

Chandler, Darren Robert. "Effects of acylurea insecticide in Manduca sexta larvae." Thesis, University of Bath, 1991. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303547.

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32

Richardson, Katherine. "Studies on the population dynamics of Teladorsagia circumcincta." Thesis, University of Glasgow, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366339.

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33

Gonçalves, Janina Carvalho. "Avaliação de esporos de Paenibacillus larvae subsp. larvae em mel de apiários do Estado do Piauí e de métodos de detecção." Universidade Federal de Viçosa, 2004. http://www.locus.ufv.br/handle/123456789/9944.

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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2017-03-30T11:24:54Z No. of bitstreams: 1 texto completo.pdf: 234148 bytes, checksum: e87c51395b549c59f32533fea0cc9040 (MD5)<br>Made available in DSpace on 2017-03-30T11:24:54Z (GMT). No. of bitstreams: 1 texto completo.pdf: 234148 bytes, checksum: e87c51395b549c59f32533fea0cc9040 (MD5) Previous issue date: 2004-07-30<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Este trabalho teve como objetivo investigar a presença de Paenibacillus larvae subsp. larvae em mel de colméias do Estado do Piauí, pelo

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34

Aguirre-Gil, Oniel Jeremías [UNESP]. "Parâmetros de produção de Chrysomya megacephala (Fabr., 1794) (Diptera: Calliphoridae) em dietas e densidades larvais, com vistas à alimentação animal." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/91312.

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Made available in DSpace on 2014-06-11T19:25:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-02-21Bitstream added on 2014-06-13T18:53:09Z : No. of bitstreams: 1 aguirregil_oj_me_jabo.pdf: 820756 bytes, checksum: 73aa85c9cdc05d6bc69ba37795d60c4b (MD5)<br>O objetivo do trabalho foi gerar informações sobre alguns parâmetros biológicos de Chrysomya megacephala sob diferentes situações, como tipos de dietas, densidades larvais e quantidades de dietas. Foi adotado um delineamento fatorial de 4x3x3 (4 tipos de dietas, 3 densidades larvais e 3 quantidades de dietas). Estas informações são

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35

Ferreira, Luana Malheiros [UNESP]. "Desenvolvimento inicial e densidade de estocagem de larvas de Aracu-riscado, Leporinus agassizii (Characiformes: Anostomidae)." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132588.

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Made available in DSpace on 2016-01-13T13:27:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-05-27. Added 1 bitstream(s) on 2016-01-13T13:32:33Z : No. of bitstreams: 1 000854796.pdf: 3287498 bytes, checksum: 5389246fc289aed76f7b12139edf692c (MD5)<br>Estudos para produção de formas jovens de peixes são fundamentais para o desenvolvimento da piscicultura e o manejo das populações naturais. Leporinus agassizii é apreciado nas distintas modalidades de pesca (comercial, artesanal, ornamental e esportiva), além de apresentar características desejáveis para a criação. Objetivou-se descrev

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36

Aguirre-Gil, Oniel Jeremías. "Parâmetros de produção de Chrysomya megacephala (Fabr., 1794) (Diptera: Calliphoridae) em dietas e densidades larvais, com vistas à alimentação animal /." Jaboticabal, 2013. http://hdl.handle.net/11449/91312.

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Orientador: Antonio Carlos Busoli<br>Banca: Arlindo Leal Boiça Junior<br>Banca: Marcos Doniseti Michelotto<br>Resumo: O objetivo do trabalho foi gerar informações sobre alguns parâmetros biológicos de Chrysomya megacephala sob diferentes situações, como tipos de dietas, densidades larvais e quantidades de dietas. Foi adotado um delineamento fatorial de 4x3x3 (4 tipos de dietas, 3 densidades larvais e 3 quantidades de dietas). Estas informações são importantes para o planejamento da produção comercial de larvas, como alternativa na alimentação de peixes, rãs e pássaros. O incremento da porcenta

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37

Ferreira, Luana Malheiros. "Desenvolvimento inicial e densidade de estocagem de larvas de Aracu-riscado, Leporinus agassizii (Characiformes: Anostomidae) /." Jaboticabal, 2015. http://hdl.handle.net/11449/132588.

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Orientador: Elizabeth Romagosa<br>Banca: Sérgio de Medeiros Ferraz<br>Banca: Sérgio Ricardo Batlouni<br>Resumo: Estudos para produção de formas jovens de peixes são fundamentais para o desenvolvimento da piscicultura e o manejo das populações naturais. Leporinus agassizii é apreciado nas distintas modalidades de pesca (comercial, artesanal, ornamental e esportiva), além de apresentar características desejáveis para a criação. Objetivou-se descrever o desenvolvimento embrionário e a densidade de estocagem de larvas do aracu-riscado, L. agassizii. Reprodutores foram submetidos a reprodução induz

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38

Suzuki, Yoshiaki, Teruo Matsubara, Mitsuo Hoshino, and 輝男松原. "Breakdown of mineral grains by earthworms and beetle larvae." Elsevier, 2003. http://hdl.handle.net/2237/5300.

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39

Morrissey, Barbara. "Epidemiology of Paenibacillus larvae, causative agent of American foulbrood." Thesis, University of York, 2015. http://etheses.whiterose.ac.uk/13766/.

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Paenibacillus larvae is the causative agent of American foulbrood (AFB), a damaging disease of honey bees (Apis mellifera) with a global distribution. AFB infects the honey bee larvae through spore-contaminated larval food and once infected the larvae will die within twelve days. AFB infection leads to the eventual death of the honey bee colony. In many countries the best control method is thought to be the destruction of the colony, to destroy the hardy, infectious spores. Therefore infection nearly always leads to the death of the colony. In the UK cases of the disease have decreased in rece

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40

Robinson, Michael Elden. "Investigation of behaviour changes in parasitized Drosophila melanogaster larvae." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24233.pdf.

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41

Caldwell, Lesley Anna. "Intracellular pH and vesicle fusion in Drosophila larvae neurones." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610629.

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42

Garcia, Romero Maria Montserrat. "Molecular and cellular dissection of zebrafish larvae tail regeneration." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/15398/.

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Regeneration is the ability of organisms to restore their structures in form and function. While it is present in the complete animal kingdom, humans retain the capacity to restore some tissues and organs, but this capacity is limited in comparison with that of other vertebrates such as the zebrafish. Further, the growth of regenerative diseases and the lack of therapies to fully restore damaged organs and limbs highlight the importance of the study of regeneration. To further the understanding of the regeneration process, this study focuses on molecular and cellular dissection of the tail reg

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Lundgren, Kristina. "Impact of fly specific bacteria on fly larvae composting." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-377636.

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About one third of all edible food is wasted globally each year. This calls for improvements in resource and waste management. An interesting solution for organic waste is fly larvae composting, which both produces protein in the form of larvae and a nutrient rich residue. The larvae can be used as animal feed while the residue can be applied as an organic fertilizer, thus recycling the nutrients. Fly larvae composting with the black soldier fly (BSF), Hermetia illucens, is relatively new, but there is extensive research on how the treatment is affected by different parameters, e.g. temperatur

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Wheeler, Jeanette Danielle. "Behavioral responses of invertebrate larvae to water column cues." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103337.

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Thesis: Ph. D., Joint Program in Biological Oceanography (Massachusetts Institute of Technology, Department of Biology; and the Woods Hole Oceanographic Institution), 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 139-150).<br>Many benthic marine invertebrates have two-phase life histories, relying on planktonic larval stages for dispersal and exchange of individuals between adult populations. Historically, larvae were considered passive drifters in prevailing ocean currents. More recently, however, the paradigm has shifted toward active larval beh

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Komo, Larissa. "Mechanisms and benefits of heterospecific aggregation in necrophagous larvae." Thesis, Lille 2, 2019. http://www.theses.fr/2019LIL2S046.

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Le nécrobiome définit la communauté impliquée dans le processus de décomposition de la biomasse morte (la nécromasse). Cette communauté comprend de nombreux invertébrés et microorganismes différents qui se rassemblent sur des sites spécifiques de la nécromasse. Les mouches à viande jouent un rôle important en tant que premiers organismes décomposeurs, dont les larves (asticots) forment de grandes masses sur les cadavres. Ces regroupements spatial et temporel peuvent être constitués soit d'une espèce (agrégations conspécifiques), soit de plusieurs espèces différentes plus ou moins proches phylo

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McLellan, Christopher Richard. "Statistical modelling of home range and larvae movement data." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/14202.

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In this thesis, we investigate two di erent approaches to animal movement modelling; nite mixture models, and di usion processes. These models are considered in two di erent contexts, rstly for analysis of data obtained in home range studies, and then, on a much smaller scale, modelling the movements of larvae. We consider the application of mixture models to home range movement data, and compare their performance with kernel density estimators commonly used for this purpose. Mixtures of bivariate normal distributions and bivariate t distributions are considered, and the latter are found to be

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Gibbs, Mitchell. "The impact of climate change on larvae of oysters." Thesis, The University of Sydney, 2020. https://hdl.handle.net/2123/24912.

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Marine larvae are a critical life history stage of marine molluscs which will be impacted by climate change. There is a pressing need to understand whether marine molluscs will have the capacity to adapt and persist in this era of rapid change. Transgenerational plasticity is a mechanism for rapid acclimation of marine organisms which result in resilient offspring when exposed to climate change. The overall aim of this thesis was to determine the impact of climate change on the larvae of the native Sydney rock oyster, Saccostrea glomerata and invasive Pacific oyster Magallana gigas. The main h

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Neira, Francisco Javier. "Systematics and ecology of larvae of lampreys and fishes." Thesis, Neira, Francisco Javier (1988) Systematics and ecology of larvae of lampreys and fishes. PhD thesis, Murdoch University, 1988. https://researchrepository.murdoch.edu.au/id/eprint/53025/.

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Body intervals, number of trunk myomeres and frequency of pigmentation in different body regions were recorded for populations of larvae of each of the three Southern Hemisphere anadromous parasitic lampreys collected from rivers in Australia, New Zealand and South America. In order to correct for growth, the morphometric data were subjected to multiple group principal components analysis (MGPCA). The components, together with myomere counts and pigmentation data, were subjected to discriminant analyses. Clustering of the discriminant centroids clearly distinguished between populations of Mord

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Candeias, Adriana Tojinha. "Feeding, swimming and respiration in barnacle larvae (Cirripedia: Thoracica)." Thesis, Bangor University, 2006. https://research.bangor.ac.uk/portal/en/theses/feeding-swimming-and-respiration-in-barnacle-larvae-cirripedia-thoracica(fa95c21c-28dd-4d89-a617-8d1a12e41045).html.

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For planktotrophic larvae, the availability of food is one of the major factors thatcontrol growth and development. In the present study, feeding and starvation were investigated within the scope of survival, swimming and respiration rates of Cirripedialarvae. Adults of Pollicipes pollicipes (Pedunculata: Scalpellidae) and Elminius modestus(Sessilia: Balanidae) were collected from the Iberian Peninsula and western UK coast, respectively, and a series of laboratory experiments conducted using a novel rotating wheel immersed in a temperature controlled tank. Observations were made on larval grow

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D'Souza, Frances M. L. "The nutritional value of microalgae to penaeid prawn larvae." Thesis, Queensland University of Technology, 1997. https://eprints.qut.edu.au/36935/1/36935_Digitised%20Thesis.pdf.

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This is the first study to investigate the nutritional requirements of the penaeid prawn protozoeal phase (the first feeding stage of the prawn life cycle) using micro algae to provide different nutritional conditions. The work was a simultaneous examination of the biochemical composition of the larvae and their microalgal diets. In addition, the influence of naupliar composition on later larval stages was studied. The biochemical parameters measured were total protein, lipid and carbohydrate (i.e. gross biochemical composition) and total lipid was further resolved into individual fatty acid

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