Relevant bibliographies by topics / Metamorphosis

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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 'Metamorphosis'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Metamorphosis"

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Youson, J. H., J. A. Holmes, J. A. Guchardi, J. G. Seelye, R. E. Beaver, J. E. Gersmehl, S. A. Sower, and F. W. H. Beamish. "Importance of Condition Factor and the Influence of Water Temperature and Photoperiod on Metamorphosis of Sea Lamprey Petromyzon marinus." Canadian Journal of Fisheries and Aquatic Sciences 50, no. 11 (November 1, 1993): 2448–56. http://dx.doi.org/10.1139/f93-269.

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The incidence of metamorphosis of larval sea lamprey, Petromyzon marinus, was strongly affected by water temperature but not photoperiod. In a 1991 experiment, the development of metamorphosing animals in 13 °C water was retarded about 1 mo relative to animals metamorphosing at 21 °C and to a population from the Chippewa River, Michigan; the minimum length, weight, and condition factor (CF) of metamorphosing experimental animals were 117 mm, 2.8 g, and 1.50, respectively, and only 4% metamorphosed at 13 °C and 18.9% at 21 °C. In 1992, with a population from the Great Chazy River, New York, 66% of the animals at 13 °C and 84% at 21 °C metamorphosed. The higher incidence of metamorphosis in 1992 is partly related to the use of larvae that were larger than the minima established in 1991. We predicted, using criteria defined below, that 74 and 72% of the animals at 13 and 21 °C, respectively, would metamorphose. Our predictions were consistent with observations at 13 °C and for five of seven replicate tanks at 21 °C. We suggest that a presumptive metamorphosing sea lamprey in landlocked populations should be at least 120 mm long, weigh 3.0 g, and have a CF ≥ 1.50 and that these criteria must be used in conjunction.
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Holmes, J. A., F. W. H. Beamish, J. G. Seelye, S. A. Sower, and J. H. Youson. "Long-term Influence of Water Temperature, Photoperiod, and Food Deprivation on Metamorphosis of Sea Lamprey, Petromyzon marinus." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 9 (September 1, 1994): 2045–51. http://dx.doi.org/10.1139/f94-207.

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After 11 mo in the laboratory, significantly more sea lamprey, Petromyzon marinus, larvae from the Chippewa River, Michigan, metamorphosed in an ambient temperature regime (3 ± 2 animals∙tank−1) compared with a fixed 21 °C temperature (0 animals); photoperiod and food deprivation did not have detectable effects on the incidence of metamorphosis. Metamorphosing animals in our laboratory study were significantly smaller in size (length and weight) and had a lower condition factor (CF) than animals from the same population that metamorphosed a year earlier under field and shorter term laboratory conditions. We also predicted, using criteria of 120 mm, 3.0 g, and a CF of 1.50, that 12 and 14% of the animals in the ambient and fixed temperature regimes, respectively, would metamorphose. Our prediction for the ambient temperature did not differ significantly from observed (11%). We suggest that larvae in landlocked populations of sea lamprey that are at least 120 mm long, weigh 3.0 g, and have a CF of 1.50 or greater in the fall can be predicted to metamorphose the following summer. Furthermore, our data show that low temperature during the winter followed by rising temperature in the spring is the primary environmental cue initiating metamorphosis in sea lamprey.
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Holmes, John A., Helen Chu, Syeda A. Khanam, Richard G. Manzon, and John H. Youson. "Spontaneous and induced metamorphosis in the American brook lamprey, Lampetra appendix." Canadian Journal of Zoology 77, no. 6 (October 10, 1999): 959–71. http://dx.doi.org/10.1139/z99-056.

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We described the seven stages of spontaneous metamorphosis in the American brook lamprey (Lampetra appendix) and assessed the importance of size as a determinant of spontaneous and induced metamorphosis. Serum concentrations of the thyroid hormones (TH) thyroxine (T4) and triiodothyronine (T3) were measured in metamorphosing and nonmetamorphosing L. appendix. The sequence of stages in metamorphosis and changes in the relative lengths of most body regions were consistent with data reported for other lamprey species. However, premetamorphic and metamorphosing L. appendix in the early stages of metamorphosis (1-3) were much larger in size (at least 155 mm and 5.40 g) than has been observed for other lamprey species. Serum concentrations of T4 and T3 were high by the end of the larval period and declined significantly by stage 2 of metamorphosis. Larvae greater than or equal to 130 mm in length were treated with either potassium perchlorate (KClO4; 0.01 and 0.05%) or 10 mg/L propylthiouracil (PTU; 0.0001%) for 117 days from September to January to determine if metamorphosis could be induced by these goitrogens. Both concentrations of KClO4 successfully induced metamorphosis in L. appendix, but the incidence of metamorphosis (62%) was much lower than reported in sea lampreys (98%) of comparable size. Serum concentrations of T4 and T3 declined by 64-76 and 93-96% relative to control values, respectively, in metamorphosing and nonmetamorphosing L. appendix treated with KClO4. PTU elicited declines of 55% for T4 and 80% for T3, but only one animal metamorphosed. Based on these data, we conclude that a decline in serum TH levels is necessary for metamorphosis in L. appendix, but not sufficient by itself to trigger the process.
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Pronych, Scott, and Richard Wassersug. "Lung use and development in Xenopus laevis tadpoles." Canadian Journal of Zoology 72, no. 4 (April 1, 1994): 738–43. http://dx.doi.org/10.1139/z94-099.

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Shortly after hatching, Xenopus laevis tadpoles fill their lungs with air. We examined the role played by early lung use in these organisms, since they are able to respire with both their lungs and their gills. We investigated the effect on X. laevis development when the larvae were prevented from inflating their lungs, and whether early lung use influenced the size of the lungs or the tadpole's ability to metamorphose. Tadpoles that were denied access to air had lungs one-half the size of those of controls. This difference in lung size was too large to be explained merely by a stretching of the lung due to inflation. The longer tadpoles were denied access to air, the longer they took to metamorphose, and their probability of completing metamorphosis diminished. One tadpole raised throughout its larval life without access to air successfully metamorphosed but had abnormal, solidified lungs and an enlarged heart. Collectively, these experiments demonstrate that early lung use in tadpoles is important in determining both ultimate lung size and the probability of successfully metamorphosing. Lung use during early larval development in X. laevis is not absolutely necessary for survival through metamorphosis, but its absence severely handicaps growth.
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Iwai, Noriko, and Kiyomi Yasumiba. "Field variations in mass at metamorphosis in a stream frog, Odorrana splendida, and their relationship with the stream environment." Animal Biology 71, no. 3 (September 3, 2021): 297–310. http://dx.doi.org/10.1163/15707563-bja10053.

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Abstract Animals with complex life cycles, such as amphibians, shift their habitats when they metamorphose. Metamorphosing traits (e.g., size at, and timing of, metamorphosis) at an early stage can affect the growth, reproduction, and survival in the adult stage. Thus, metamorphosing traits are important factors that affect the fitness of the individuals. Although size at metamorphosis in the field has been investigated in amphibians, its relationship with environmental factors has been scarce. We aimed to quantify variations in the mass at metamorphosis of a stream frog, Odorrana splendida, among multiple streams, and show the relationship of these variations with environmental conditions. We searched for metamorphs in 11 field streams and measured their body size. We then examined the relationship between environmental conditions of each stream and the mass at metamorphosis to reveal the factors determining the mass. We found 229 metamorphs over three years. The estimated mass at metamorphosis ranged from 0.17 g to 1.44 g, with a coefficient of variation among streams of 0.38. The size at metamorphosis significantly differed among streams, and was found to be positively affected by water temperature and chlorophyll a concentration, and negatively affected by altitude, slope gradient, and the number of adult calls. We showed that O. splendida has a large variation in mass at metamorphosis within and among natural streams. A lower mass at metamorphosis may correlate with scarce food resources in the stream and higher competition during the larval stages, resulting from a higher number of mating adults.
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Byrne, Isabel, Robyn Thomson, Rory Thomson, Duncan Murray-Uren, and J. Roger Downie. "Observations on metamorphosing tadpoles of Hyalinobatrachium orientale (Anura: Centrolenidae)." Phyllomedusa: Journal of Herpetology 19, no. 2 (December 12, 2020): 217–23. http://dx.doi.org/10.11606/issn.2316-9079.v19i2p217-223.

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Observations on metamorphosing tadpoles of Hyalinobatrachium orientale (Anura: Centrolenidae). Metamorphosis, when anuran amphibians resorb their tails and remodel their mouthparts and internal organs, is a vulnerable stage in the frog’s life history. As larvae metamorphose from tadpoles to adult frogs, they are neither suited to aquatic life nor ready for active terrestrial life. Previous studies have examined the duration of metamorphosis in a range of species, with respect to tadpole size, habitat, and other factors; however, the duration of metamorphosis relative to where it takes place has not been reported in centrolenids. In Hyalinobatrachium orientale, metamorphosis takes place on the upper surfaces of the leaves of low understory plants and lasts 3.5–4.0 days, a little longer than expected for the tadpole of this body size. Metamorphs seem to shift their perches from leaf to leaf randomly. There are no significant differences in the temperature or relative humidity of the upper and lower surfaces of leaves in the forest understory; thus, the presence of the metamorphs on the upper surfaces of leaves may provide moisture from the upper story vegetation after rain and protect them from terrestrial predators.
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Chelgren, Nathan D., Daniel K. Rosenberg, Selina S. Heppell, and Alix I. Gitelman. "Individual variation affects departure rate from the natal pond in an ephemeral pond-breeding anuran." Canadian Journal of Zoology 86, no. 4 (April 2008): 260–67. http://dx.doi.org/10.1139/z08-003.

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Frogs exhibit extreme plasticity and individual variation in growth and behavior during metamorphosis, driven by interactions of intrinsic state factors and extrinsic environmental factors. In northern red-legged frogs ( Rana aurora Baird and Girard, 1852), we studied the timing of departure from the natal pond as it relates to date and size of individuals at metamorphosis in the context of environmental uncertainty. To affect body size at metamorphosis, we manipulated food availability during the larval stage for a sample (317) of 1045 uniquely marked individuals and released them at their natal ponds as newly metamorphosed frogs. We recaptured 34% of marked frogs in pitfall traps as they departed and related the timing of their initial terrestrial movements to individual properties using a time-to-event model. Median age at first capture was 4 and 9 days postmetamorphosis at two sites. The rate of departure was positively related to body size and to date of metamorphosis. Departure rate was strongly negatively related to time elapsed since rainfall, and this effect was diminished for smaller and later metamorphosing frogs. Individual variation in metamorphic traits thus affects individuals’ responses to environmental variability, supporting a behavioral link with variation in survival associated with these same metamorphic traits.
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Chambers, R. Christopher, and William C. Leggett. "Size and Age at Metamorphosis in Marine Fishes: An Analysis of Laboratory-Reared Winter Flounder (Pseudopleutonectes americanus) with a Review of Variation in Other Species." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 11 (November 1, 1987): 1936–47. http://dx.doi.org/10.1139/f87-238.

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Offspring of adult winter flounder (Pseudopleuronectes americanus) collected from Conception Bay, Newfoundland, were reared from fertilization to metamorphosis. We tested two hypotheses: 1) length and age at metamorphosis are equally variable among individuals and (2) length and age at metamorphosis are not correlated. Length at metamorphosis was significantly less variable than age at metamorphosis when data from all laboratory populations were pooled and in 15 of 18 populations. Coefficients of variation for length and age at metamorphosis for the pooled data were 0.051 and 0.123, respectively. Length and age at metamorphosis were positively correlated when the data were pooled (r = 0.42, p < 0.001) and within 8 of 18 populations. Larvae that metamorphose late do so at larger sizes. When length and age at metamorphosis were converted to growth and developmental rates for the full larval period, significant positive correlations were evident between these rates for the pooled data (r = 0.68, p < 0.001) and within 16 of 18 populations. Larvae that grow slowly, therefore, remain as larvae longer. An examination of published values on size and age at metamorphosis in marine fishes revealed a pattern consistent with our findings both within and among populations and environments: (1) variation in length was less than variation in age at metamorphosis and (2) positive correlations between growth and developmental rates were evident through the larval period. Increased size at metamorphosis may ameliorate competitive effects and reduce the risk of predation in the period immediately following metamorphosis. Due to the considerable variation in the duration of the larval period (age at metamorphosis) the number of individuals that successfully metamorphose and subsequently enter the mature population could be significantly altered under differing environmental conditions.
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Rao, Xiaozhen, and Gang Lin. "Effects of age, salinity and temperature on the metamorphosis and survival of Capitulum mitella cyprids (Cirripedia: Thoracica: Scalpellomorpha)." Journal of the Marine Biological Association of the United Kingdom 100, no. 1 (January 14, 2020): 55–62. http://dx.doi.org/10.1017/s0025315419001152.

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AbstractCapitulum mitella is a tropical/sub-tropical intertidal barnacle of high economic value. However, no studies have yet focused on the effects of the extrinsic and intrinsic factors that affect the metamorphosis of this species. The current study stored cyprids at room temperature (24–26°C) and low temperature (7°C) and then compared the effects of age and storage temperature on cyprid metamorphosis. The effects of salinity and temperature on cyprid metamorphosis and survival were examined. Results showed the following. (1) Young 0-day cyprids were not competent to metamorphose, and C. mitella cyprids had a pre-competent phase. (2) The cyprid metamorphosis percentage at different storage temperatures with the same age was higher at room temperature than at 7°C. Low temperature storage of cyprids appeared to be unsuitable for C. mitella. The ideal storage time at room temperature for cyprids was 3–5 days. (3) The cyprids could complete metamorphosis at a salinity range of 20–45 mg l−1, and the optimum salinity range for metamorphosis was 25–35 mg l−1. At 15 mg l−1 salinity, the cyprids could survive but failed to metamorphose. (4) The cyprids could survive and complete metamorphosis at 18–36°C, and the optimum temperature range for metamorphosis was 21–33°C. The metamorphosis of C. mitella cyprids can tolerate a wide spectrum of salinity and temperature, which is related to the distribution location, habitat environment and lifestyle. Results of this study may provide a basis for the settlement biology, recruitment ecology and aquaculture of this species.
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Mathiron, Anthony G. E., Jean-Paul Lena, Sarah Baouch, and Mathieu Denoël. "The ‘male escape hypothesis’: sex-biased metamorphosis in response to climatic drivers in a facultatively paedomorphic amphibian." Proceedings of the Royal Society B: Biological Sciences 284, no. 1853 (April 19, 2017): 20170176. http://dx.doi.org/10.1098/rspb.2017.0176.

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Paedomorphosis is a major evolutionary process that bypasses metamorphosis and allows reproduction in larvae. In newts and salamanders, it can be facultative with paedomorphs retaining gills and metamorphs dispersing. The evolution of these developmental processes is thought to have been driven by the costs and benefits of inhabiting aquatic versus terrestrial habitats. In this context, we aimed at testing the hypothesis that climatic drivers affect phenotypic transition and the difference across sexes because sex-ratio is biased in natural populations. Through a replicated laboratory experiment, we showed that paedomorphic palmate newts ( Lissotriton helveticus ) metamorphosed at a higher frequency when water availability decreased and metamorphosed earlier when temperature increased in these conditions. All responses were sex-biased, and males were more prone to change phenotype than females. Our work shows how climatic variables can affect facultative paedomorphosis and support theoretical models predicting life on land instead of in water. Moreover, because males metamorphose and leave water more often and earlier than females, these results, for the first time, give an experimental explanation for the rarity of male paedomorphosis (the ‘male escape hypothesis’) and suggest the importance of sex in the evolution of paedomorphosis versus metamorphosis.
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Dissertations / Theses on the topic "Metamorphosis"

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Isitt, Paul Richard. "Metamorphosis." Thesis, Bangor University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429841.

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Pereira, Guilherme Manuel Ferreira Cid Pereira. "Metamorphosis." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2019. http://hdl.handle.net/10400.5/19994.

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Dissertação de Mestrado Integrado em Arquitetura, com a especialização em Urbanismo apresentada na Faculdade de Arquitetura da Universidade de Lisboa para obtenção do grau de Mestre.
Este Projecto Final de Mestrado, cujo tema é Metamorphosis: Re-uso do Património edificado como meio para a transformação urbana, pretende olhar para a cidade construída, com destaque para o património arquitectónico obsoleto, como potencial momento de transição na evolução dos territórios, encarando desse modo as preexistências como uma oportunidade para reinventar a cidade. Da necessidade de aplicar estas ideias, Setúbal surge como sendo um território representativo destes fenómenos onde a obsolescência e a ruína de estruturas edificadas que caracterizam esta realidade, conferem um potencial de abordagem no âmbito da transformação dos tecidos urbanos. É o caso de grande parte das fortificações militares Seiscentistas desta cidade. Pretende-se então, a partir deste ponto pensar a evolução da cidade de Setúbal, tendo como ponto de referência estas preexistências, dando assim sentido a uma narrativa urbana de re-uso e transformação. Deste modo, a importância do tema deste projecto final de mestrado, prende-se com a vontade de valorizar a história e a memória dos territórios sem que por um lado os tecidos urbanos permaneçam cristalizados no tempo ou por oposição a vontade de intervir se sobreponha à identidade desse património. Assim, na sequência da identificação de um fenómeno específico no quadro urbanístico e histórico da cidade de Setúbal, a proposta sugere que estas ruínas do património militar sejam parte integrante do sistema de espaços públicos e que associadas a programas culturais, promovam o usufruto de todos, partindo de uma premissa de, não só preservar o património, como lhe dar um sentido de oportunidade e continuidade.
ABSTRACT:This Master's Final Project, whose theme is Metamorphosis: Re-use of the built heritage as a means of urban transformation, aims to look at the built city, with emphasis on the obsolete architectural heritage, as a potential moment of transition in the evolution of the territories, facing the preexistences as an opportunity to reinvent the city. From the need to apply these ideas, Setúbal emerges as a representative territory of these phenomena where the obsolescence and ruin of built structures that characterize this reality, give a potential of approach in the context of the transformation of urban fabrics. This is the case for much of the 16th century military fortifications of this city. From this point, it’s intended to think about the evolution of the city of Setúbal, having as reference these preexistences, thus giving meaning to an urban narrative of reuse and transformation. Thus, the importance of the theme of this final master's project is related to the desire to value the history and memory of the territories without, on the one hand, the urban tissues remaining crystallized in time or, in opposition, the will to intervene to override identity of this heritage. Following the identification of a specific phenomenon in the urban and historical context of the city of Setúbal, the proposal suggests that these ruins of the military heritage be an integral part of the system of public spaces. In addition, it is expected that, associated with cultural programs, it promotes the enjoyment of all, starting from a premise of not only preserving the heritage, but also giving it a sense of opportunity and continuity.
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Correia, Laura Sofia Dias Lisboa. "Metamorphosis." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2020. http://hdl.handle.net/10400.5/20490.

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Dissertação de Mestrado Integrado em Arquitetura, apresentada na Faculdade de Arquitetura da Universidade de Lisboa, com a especialização em Urbanismo para obtenção de grau de Mestre.
Setúbal nasce da fusão do mar com o rio e da sua ligação com a terra. Porém, o seu processo evolutivo e durante toda a sua transformação ao longo do tempo, essa ligação vai desvanecendo e a cidade de Setúbal vai abandonando o rio Sado. Esta constatação faz com que exista uma difícil articulação entre o rio e, sobretudo, o núcleo antigo da cidade. Partindo deste motto, o que se pretende com esta proposta é recuperar uma relação estrutural que se perdeu entre o rio e a cidade, a partir da desmaterialização da sua margem actual, reinterpretando-a através da sua memória. Deste modo, propõe-se a criação de uma nova margem, de um deslimite que una de volta o rio à cidade de Setúbal, a partir de pré-existências em decadência e actualmente abandonadas, tais como, o Baluarte do Livramento, o cais 3, o Bairro das Fontainhas, o Bairro da Bela Vista, o Terminal Marítimo do Sado e a Central Termoeléctrica de Setúbal. Neste sentido propõe-se uma nova imagem para a cidade que se constrói, destruindo, e que radica na noção de ruína contemporânea e que preserva na sua essência a evidência da história desta cidade. A proposta tem por objectivo construir uma coesão baseada num novo nexo para os vestígios não acreditados a partir de uma re-significação destes fragmentos industriais, fundamentada na sua memória.
ABSTRACT: Setubal arises from the fusion of the Sea with the River and their connection to the Land. However, due to its evolutionary process and transformations over time, such connection is being dimed, and the city of Setubal is leaving the Sado River behind. This reckoning leads to a difficult articulation between the river and, particularly, the old core of the city. With this understanding, the scope of this proposal intends to reclaim the structural relationship that has been lost between the river and the city, through the dematerialization of its current margin, re-interpreting it through its memory. What is projected is the creation of a new margin, for a de-limit that unites the river back to the city of Setubal, from pre-existing decadent structures currently at abandonment, such as Baluarte do Livramento, cais 3, Bairro das Fontainhas, Bairro da Bela Vista, Terminal Marítimo do Sado and the Central Termoeléctrica de Setúbal. As a result, it is proposed a new image for the city, that builds by destroying, and that lays on the notion of a contemporary ruin – preserving its essence and displaying the story of this city. The presented proposal aims to build a cohesion founded on a new nexus for the unaccredited traces, through a re-signification of these industrial fragments based on their memory.
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Barata, Cristiana Augusto. "Metamorphosis." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2020. http://hdl.handle.net/10400.5/20507.

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Dissertação de Mestrado Integrado em Arquitetura, apresentada na Faculdade de Arquitetura da Universidade de Lisboa, com a especialização em Urbanismo para obtenção de grau de Mestre.
A relação cidade-rio revela uma particularidade importante na identidade e crescimento de um território ribeirinho. Esta condição permite que a cidade se abra à água e com ela construa um espaço simbólico entre o território e a figura humana. Este trabalho formaliza um desejo de transformar o tecido urbano da cidade de Setúbal e a reaproximar ao rio sob a consciência interna da sua identidade e memória. Numa leitura atenta ao território são revelados os suportes sobre o qual a cidade se desenvolveu, expondo uma crescente conquista sobre o rio. Este território conquistado sobre a água apresenta-se hoje como um espaço não consolidado e fragmentado, resultado do crescimento pouco coeso da cidade e sobretudo das frentes rio que serviam antigas zonas industriais e portuárias. Estas estruturas portuárias desarticuladas com a cidade criam a oportunidade para repensar os tecidos urbanos e relações com o rio. A partir desta referência histórica propõe-se uma reflexão sobre os motivos do progressivo afastamento entre a cidade e o rio. A abordagem ao projeto explora uma visão da cidade, articulando a teoria e a prática, a leitura e o projeto, a partir de um exercício de composição urbana e arquitetónica. A transformação deste território ribeirinho premeia a memória do seu lugar e os vestígios de identidade que ainda imergem sobre o território. O projeto foca a frente de água do Bairro das Fontainhas como objeto de estudo onde se explora a escala e a monumentalização da água. A proposta desenvolve diferentes relações da água com o espaço construído, influenciando o comportamento das pessoas para com o lugar. Aqui constrói-se uma nova existência formal e funcional com a identidade e memória do lugar, concedendo-lhe novas espacialidades capazes de perdurar no tempo. “… a arquitetura é o único meio de que dispomos para conservar vivo um laço com um passado ao qual devemos a nossa identidade e que é constitutivo do nosso ser.” (CHOAY, 2015, pág.. 147)
ABSTRACT: The city-river bond reveals an important facet of the identity and growth of the riverside region. It allows the city to open up to the water and to build a symbolic space between the territory and the human figure. This project formalizes the desire to transform the urban structure of Setúbal and bring it closer to the river under the internal awareness of it’s identity and memory. In a careful analisys, we reveal the suports on which the city has developed, exposing a growing conquest over the river. Nowadays, this piece of land conquered to the water is a fragmented and unconsolidated space, which is a result of the lack of cohesive growth of the city, specialy the port and industrial areas. These port structures disjointed with the city create the opportunity to rethink the urban morfology and their relation with the river. Based on this historical reference, we propose a reflection on the main reasons for the progressive distance between the city and the river along the years. The project approach explores a vision for the city articulating theory and practice, reading and project, based on an exercise in urban and architectural composition. This riverside transformation rewards it’s memory and vestiges of identity barelly immersing on the territory. The project focus on the waterfront area of Bairro das Fontainhas as an object of study where the scale and monumetalization of the water is explored. The proposal develops different relationships between the water and the built space, influencing people’s behavior towards their use of the place. That said, we propose a new formal and funtional existence, built with the identity and memory of the place, grating it new spacialities capable of lasting over time. “… a arquitetura é o único meio de que dispomos para conservar vivo um laço com um passado ao qual devemos a nossa identidade e que é constitutivo do nosso ser.” (CHOAY, 2015, pág.. 147)
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Sobral, Raquel Penas de Lemos. "Metamorphosis." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2020. http://hdl.handle.net/10400.5/20486.

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Dissertação de Mestrado Integrado em Arquitetura, apresentada na Faculdade de Arquitetura da Universidade de Lisboa, com a especialização em Urbanismo para obtenção de grau de Mestre.
A cidade de Setúbal nasceu a partir da sua relação direta com o Sado, devido à atividade piscatória. Porém, o posterior abandono da indústria levou a uma quebra na relação direta da cidade com o rio. Atualmente, a frente ribeirinha de Setúbal é definida por uma sucessão de aterros, e encontra-se descaracterizada, não estabelecendo relação com o interior da cidade. Através da análise do território e da sua história, surge a necessidade da reformulação da frente ribeirinha e a vontade de aproximar os baluartes à água, promovendo uma continuidade das vivências urbanas. O projeto incide assim numa reflexão sobre a transformação da cidade construída, procurando compreender de que forma aproveitar as suas preexistências como uma oportunidade para transformar a cidade. Assim, a intervenção proposta reinventa a frente ribeirinha de Setúbal através das suas preexistências, preservando sempre a memória do lugar. A proposta parte da vontade de recuperar a relação direta com o rio Sado, e procura resolver as problemáticas da cidade, reformulando a frente ribeirinha com diferentes espaços e equipamentos que se articulam e que promovem a vivência urbana, transformando a margem no elemento estruturador da cidade de Setúbal. Á escala do objeto arquitetónico, o projeto procura reinventar o Livramento.
ABSTRACT : The city of Setúbal was born from direct relation with Sado, due to its fishing activities. However, in the passing years, this activity became less and less popular which led to a fracture in the relation that the city had with the river. Nowadays, the Setubal’s riverfront is established by a sequence of landfills, which wall off the relation of the river with the inner city. Through the analysis of the region and its history, it is unquestionable the necessity of reforming the waterfront and getting the bulwarks closer to the water. This would improve the livelihood of urban life. So, the project focuses on a reflection about the transformation of the city, looking to comprehend in which way we can take what already exists as an opportunity to transform the city. Thus, the proposed intervention re-invents Setubal’s waterfront through its pre-existences, to preserve the memory of the place. The proposal comes from the will of recovering the direct relation with the Sado river, and also of finding a solution to the city problems. This will be done by reforming the waterfront with different areas and equipment that will join and promote the urban life, and so transforming the river shore as the structural elemental of the city of Setúbal. In the scale of the architectural object, the project expects to re-invent the Livramento.
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São, Marcos Inês Margarida de Morais. "Metamorphosis." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2020. http://hdl.handle.net/10400.5/20502.

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Dissertação de Mestrado Integrado em Arquitetura com a a especialização em Urbanismo, apresentada na Faculdade de Arquitetura da Universidade de Lisboa, para obtenção do grau de Mestre.
O projecto final de mestrado tem como tema METAMORPHOSIS. Percorrer a Margem como Experiência Sensorial. a Transformação de Setúbal entre o Aterro e o Forte de Albarquel. Este tema METAMORPHOSIS foi escolhido a pensar nas cidades e em todos os processos de metamorfose, ou seja, transformação pelos quais as cidades sofrem constantemente. A presente proposta tem lugar na cidade de Setúbal, mais concretamente entre o Aterro e o Forte de Albarquel. A cidade de Setúbal passou por alguns períodos de evolução urbana e demográfica que caracterizam a progressão da cidade em si e que nos ajudam a compreender algumas fraquezas e algumas potencialidades de Setúbal. Como tal, a MARGEM e a TERRA são a base desta proposta através de percursos. O objectivo é percorrer a margem de Setúbal desde o cais 3 até ao Forte de Albarquel como experiência sensorial, através da reconfiguração da margem e da reabilitação do Forte de Albarquel que até hoje está em desuso, proporcionando-lhes deste modo, novos espaços, novos usos, mas potenciando sempre as sensações que estão sempre presentes no nosso quotidiano. A preocupação prende-se à forma de garantir espaços públicos e edificados viáveis para funções distintas e agradáveis.
ABSTRACT: This final master's project theme is METAMORPHOSIS. Perceive the river bank as a Sensory EXPERIENCE. Setúbal Transformation between the Embankment and Albarquel Fort. This METAMORPHOSIS theme was chosen thinking about cities and all the processes of metamorphosis, i.e., transformations suffered by cities constantly. This proposal takes place in the city of Setúbal, specifically between the Embankment and the Albarquel Fort. Setúbal has gone through some periods of urban and demographic evolution, which characterize the progression of the city itself and help us understand some of Setúbal's weaknesses and potentialities. As such, BANK and LAND are the basis of this proposal through pathways. The aim is to go trough Setúbal, turning the path from pier 3 to Albarquel Fort a sensory experience, through the reconfiguration of the bank and the regeneration of Albarquel Fort which is still in disuse, thus providing them with new uses and new spaces, by enhancing the sensations that are always present in our daily lives. The concern is how to ensure viable public and built spaces for both distinct and pleasent functions.
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Henriques, Tiago José de Sereno. "Metamorphosis." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2020. http://hdl.handle.net/10400.5/20495.

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Dissertação de Mestrado Integrado em Arquitetura, apresentada na Faculdade de Arquitetura da Universidade de Lisboa, com a especialização em Urbanismo para obtenção de grau de Mestre.
Em resumo, esta Prova final de mestrado formula a sua proposta numa visão mais concentrada na zona medieval da cidade. Uma zona histórica com características muito fortes e de grande potencial, mas que tem vindo a ser esquecida e deixada ao acaso ao longo dos últimos anos, fomentando, o que é hoje um dos grandes problemas da cidade, o edificado obsoleto. A estratégia é formulada e contextualizada no Bairro das Fontainhas e São Domingos, antigos bairros piscatórios, onde a presença de obsoletos é mais significativa, tanto a nível físico com a degradação do edificado, como a nível atmosférico, onde a falta de moradores e a ausência de serviços afecta a vida humana no bairro e por consequência a falta de manutenção dos seus espaços. A estratégia desenvolveu-se com o objectivo principal de restaurar a vida bairrista do local. Um método de trazer nova população, sem perder a atmosfera habitual de um bairro piscatório, onde todos vivem em comunidade. A solução encontrada e produzida nesta tese, é a criação de espaços de estar que estão directamente ligados às habitações, funcionando como um terraço comunitário, proporcionando encontros e partilhas entre moradores. De um grosso modo, a estratégia resume-se num sistema secundário de circulações, de carácter mais privado, pelo Interior do bairro, atravessando edifícios de uso público e pátios. A sua criação, passa pela construção de pátios, nos vazios urbanos existentes no interior dos quarteirões e na transformação do edificado obsoleto. De modo a garantir a viabilidade dos novos percursos e pátios, estes para além de interligarem os espaços e edifícios singulares existentes no bairro, como a Igreja da boa hora, o Convento de São Domingos, o cemitério e o Miradouro das Fontainhas, é também transformado o edificado obsoleto, referido anteriormente, dando-lhe um uso mais público, como um mercado, restaurares, etc., de modo a atrair população e possibilitando o atravessamento entre o interior dos quarteirões e as ruas.
ABSTRACT: This final project creates its proposal over a concentrated view of the medieval part of Setúbal. An historic zone with strong characteristics and with a great potential for progress, nevertheless it has been forgotten over the years increasing the obsolescence of its buildings. The strategy it´s created on neighborhood of Fontainhas and São Domingos, old fishing districts, where the present of obsolete it’s more significative, both physically with the degradation of the buildings, as atmospheric, where the lake of residents and the absence of services affect the human life in the neighborhood and consequently in the spaces maintenance. The strategy as developed with a principal objective of restoring the neighborhood life of this place. A method to bring new population, without losing the usual atmosphere of a piscatorial district where everybody lives in community. The found solution that is developed in this thesis, it’s the creation of leisure spaces that are directly connected to the habitations, allowing them to work as a community terrace, providing meeting and sharing between residents. In overall, the strategy boils down on a secondary system of circulation, with a more private character, inside of the neighborhood, that go through public buildings and courtyards. Its creation involves the construction of courtyards, in the urban voids that exists inside the city blocks and the transformation of the obsolete buildings. In order to guarantee the viability of the new routes and courtyards, these in addition to interconnecting the spaces and singular buildings in the neighborhood, as such the Church of Boa Hora, The Convent of São Domingos, the cemetery and the sightseeing of Fontainhas, there is also the transformation of the obsolete buildings, that is previously mentioned, given then a more public use, as a market, restaurants, etc., as a way to attracted population and giving the possibility to cross inside the city blocks and streets.
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Chang, Ching-Yuan. "Metamorphosis /." Online version of thesis, 1991. http://hdl.handle.net/1850/11626.

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Granfield, Monica. "An alphabetical metamorphosis /." Online version of thesis, 1990. http://hdl.handle.net/1850/10907.

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Forbes, Irving P. M. C. "Metamorphosis in Greek myths." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381816.

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Books on the topic "Metamorphosis"

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Andrea, Madesta, Kunstforum Ostdeutsche Galerie, and Oblastní galerie v. Liberci, eds. Mythos und Metamorphose = Myth and metamorphosis. Köln: Snoeck, 2010.

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Tymieniecka, Anna-Teresa, ed. Metamorphosis. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2643-0.

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Symposium, British Society for Developmental Biology. Metamorphosis. Oxford [Oxfordshire]: Clarendon Press, 1985.

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Stephens, M. L. Metamorphosis. Houston: Lindahl Books, 1985.

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Molina, Claudio Pardo, and Cristina López. Digital Metamorphosis: Digital Metamorphosis. Babelcube Inc, 2020.

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Kafka, Franz, and William Aaltonen. Metamorphosis. Arcturus Publishing, 2019.

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Kafka, Franz. Metamorphosis. Rehak, David, 2016.

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Kafka, Franz. Metamorphosis. CreateSpace Independent Publishing Platform, 2017.

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Kafka, Franz, and Ian Johnston. Metamorphosis. CreateSpace Independent Publishing Platform, 2016.

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Kafka, Franz. Metamorphosis. CreateSpace Independent Publishing Platform, 2014.

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Book chapters on the topic "Metamorphosis"

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Hamann, Sabine, Hauke Hell, Detlef Pankow, and Robert Wunderer. "Metamorphosis." In DigiScript™, 283–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-46829-2_33.

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Teoh, Eng Soon. "Metamorphosis." In Orchids as Aphrodisiac, Medicine or Food, 87–93. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18255-7_5.

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Younes, Laurent. "Metamorphosis." In Shapes and Diffeomorphisms, 331–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12055-8_13.

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Khandker, Wahida. "Metamorphosis." In Process Metaphysics and Mutative Life, 83–108. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43048-1_4.

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Ryutova-Kemoklidze, Margarita. "Metamorphosis." In The Quantum Generation, 131–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-49357-7_9.

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Ching, Frank. "Metamorphosis." In 130 Years of Medicine in Hong Kong, 77–110. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6316-9_5.

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Maggiore, Valeria. "Metamorphosis." In Lecture Notes in Morphogenesis, 319–21. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51324-5_75.

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Popova, Dyanis. "Metamorphosis." In Re-Telling Our Stories, 133–43. Rotterdam: SensePublishers, 2016. http://dx.doi.org/10.1007/978-94-6300-567-8_9.

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Hangay, George, Susan V. Gruner, F. W. Howard, John L. Capinera, Eugene J. Gerberg, Susan E. Halbert, John B. Heppner, et al. "Metamorphosis." In Encyclopedia of Entomology, 2350–54. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_4574.

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Berkoff, Steven. "Metamorphosis." In A World Elsewhere, 7–12. Abingdon, Oxon ; New York, NY : Routledge, 2019. |: Routledge, 2019. http://dx.doi.org/10.4324/9780429341144-2.

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Conference papers on the topic "Metamorphosis"

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Villanueva, Benjamin, and Lorna Wong. "Metamorphosis." In the 35th annual ACM SIGUCCS conference. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1294046.1294128.

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Head, Anthony. "Metamorphosis." In ACM SIGGRAPH 2004 Art gallery. New York, New York, USA: ACM Press, 2004. http://dx.doi.org/10.1145/1185884.1185977.

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Kim, Younghui, Sanghwa Hong, Kyungmee Kim, and Kwanu Park. "Metamorphosis." In TEI '15: Ninth International Conference on Tangible, Embedded, and Embodied Interaction. New York, NY, USA: ACM, 2015. http://dx.doi.org/10.1145/2677199.2690876.

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Jain, Madhup, Ranjith Kutty, and Raju Dani. "Metamorphosis." In the 1st Asian Conference. New York, New York, USA: ACM Press, 2010. http://dx.doi.org/10.1145/2371736.2371743.

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Ogawa, Nami, Yuki Ban, Sho Sakurai, Takuji Narumi, Tomohiro Tanikawa, and Michitaka Hirose. "Metamorphosis Hand." In AH '16: Augmented Human International Conference 2016. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2875194.2875246.

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Bosshart, Pat, Glen Gibb, Hun-Seok Kim, George Varghese, Nick McKeown, Martin Izzard, Fernando Mujica, and Mark Horowitz. "Forwarding metamorphosis." In SIGCOMM'13: ACM SIGCOMM 2013 Conference. New York, NY, USA: ACM, 2013. http://dx.doi.org/10.1145/2486001.2486011.

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Chen, David T., Andrei State, and David Banks. "Interactive shape metamorphosis." In the 1995 symposium. New York, New York, USA: ACM Press, 1995. http://dx.doi.org/10.1145/199404.199411.

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Starostin, Alexander. "THE NEXT WAVE OF GLOBALIZATION: ANTIVIRUS GLOBALIZATION AS “PLAN B”." In Globalistics-2020: Global issues and the future of humankind. Interregional Social Organization for Assistance of Studying and Promotion the Scientific Heritage of N.D. Kondratieff / ISOASPSH of N.D. Kondratieff, 2020. http://dx.doi.org/10.46865/978-5-901640-33-9783-2020-255-258.

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The article analyzes the process of contemporary global dynamics metamorphosis under the influence of rapid catastrophic events such as a Coronavirus pandemic. The author considers possible global development metamorphoses in the format of major scenario changes, depending on the scale, depth and duration of the consequences of these events. The author relies on a number of new concepts that have emerged due to reflexive and critical consideration of modern approaches to globalization.
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Lerios, Apostolos, Chase D. Garfinkle, and Marc Levoy. "Feature-based volume metamorphosis." In the 22nd annual conference. New York, New York, USA: ACM Press, 1995. http://dx.doi.org/10.1145/218380.218502.

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Demaine, Erik, Martin Demaine, Anna Lubiw, Joseph O'Rourke, and Irena Pashchenko. "Metamorphosis of the cube." In the fifteenth annual symposium. New York, New York, USA: ACM Press, 1999. http://dx.doi.org/10.1145/304893.304995.

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Reports on the topic "Metamorphosis"

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Andrus, Elena, and Minyoung Suh. Metamorphosis. Ames: Iowa State University, Digital Repository, 2014. http://dx.doi.org/10.31274/itaa_proceedings-180814-1009.

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Shin, Jooyoung. Metamorphosis. Ames: Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/itaa_proceedings-180814-244.

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Koven, William, Gordon Grau, Benny Ron, and Tetsuya Hirano. Improving fry quality, survival and growth in commercially farmed fish by dietary stimulation of thyroid hormone production in premetamorphosing larvae. United States Department of Agriculture, 2004. http://dx.doi.org/10.32747/2004.7695856.bard.

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There is a direct correlation between successful metamorphosis from larvae to post-larvae and the quality of the resultant juveniles or fry. Juvenile quality, in turn, is a major factor influencing fish production level and market price. However, following the profound morphological and physiological changes occurring during metamorphosis, the emerging juveniles in some species characteristically demonstrate heterotrophic growth, poor pigmentation, cannibalism and generally poor survival. The white grouper (Epinephelus aeneus) in Israel and the Pacific threadfin (Polydactylussexfilis) in Hawaii are two promising candidates for mariculture that have high market value but a natural fishery that has sharply declined in recent years. Unfortunately, their potential for culture is severely hampered by variable metamorphic success limiting their production. The main objective was to compare the efficacy and economic viability of dietary or environmental iodine on metamorphic success and juvenile quality in the white grouper and the pink snapper which would lead to improved commercial rearing protocols and increased production of these species both in Israel and the US. The Hawaii Institute of Marine Biology encountered problems with the availability of pink snapper brood stock and larvae and changed to Pacific threadfin or moi which is rapidly becoming a premier aquaculture species in Hawaii and throughout the Indo-Pacific. The white grouper brood stock at the National Center for Mariculture was lost as a result of a viral outbreak following the sudden breakdown of the ozone purification system. In addition, the NCM suffered a devastating fire in the fall of 2007 that completely destroyed the hatchery and laboratory facilities although the BARD project samples were saved. Nevertheless, by studying alternate species a number of valuable findings and conclusions that can contribute to improved metamorphosis in commercially valuable marine species resulted from this collaborative effort. The Israeli group found that exposing white grouper larvae to external TH levels synchronized and increased the rate of metamorphosis. This suggested that sub-optimal synthesis of TH may be a major factor causing size heterogeneity in the larval population and high mortality through cannibalism by their larger more metamorphosed cohorts. Two protocols were developed to enrich the larvae with higher levels of the TH precursor, iodine; feeding iodine enriched Artemia or increasing the level of seawater iodine the larvae are exposed to. Results of accumulated iodine in gilthead seabream larvae indicated that the absorption of iodine from the water is markedly more efficient than feeding iodine enriched Artemia nauplii. Samples for TH, which will be analyzed shortly, will be able to determine if another dietary factor is lacking to effectively utilize surplus tissue iodine for TH synthesis. Moreover, these samples will also clarify which approach to enriching larvae with iodine, through the live food or exposure to iodine enriched seawater is the most efficient and cost effective. The American group found that moi larvae reared in ocean water, which possessed substantially higher iodine levels than those found in seawater well water, grew significantly larger, and showed increased survival compared with well water reared larvae. Larvae reared in ocean water also progressed more rapidly through developmental stages than those in low-iodine well seawater. In collaboration with Israeli counterparts, a highly specific and precise radioimmunoassay procedure for thyroid hormones and cortisol was developed. Taken altogether, the combined Hawaiian and Israeli collaborative research suggests that for teleost species of commercial value, adequate levels of environmental iodine are more determinate in metamorphosis than iodine levels in the live zooplankton food provided to the larvae. Insuring sufficiently high enough iodine in the ambient seawater offers a much more economical solution to improved metamorphosis than enriching the live food with costly liposomes incorporating iodine rich oils.
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Hsing, William. The Metamorphosis of Fangcang – The Life and Afterlife of a Chinese Concentration Camp. Critical Asian Studies, August 2023. http://dx.doi.org/10.52698/tkhz5382.

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Froese, E. Metamorphosed Alteration Zones. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127266.

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Gayá, Romina, Rodrigo Wagner, Eric Warner, Evan Ellis, Rhys Jenkins, Eduardo Bianchi, Gary Gereffi, et al. Integration & Trade Journal: No. 40: June, 2016. Inter-American Development Bank, June 2016. http://dx.doi.org/10.18235/0008303.

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How to build a convergence within the diversity of integrationist experiences? How can global efforts converge with regional and national realities through a glocal (global + local) governance that supports a productive integration and generates sustainable jobs? In this context of new challenges, Latin America must face the transformation of the Chinese economic model. After years of keeping prices of raw materials high, an exponential growth and an active investment policy in the region, Chinese economy grows at a slower rate, shows greater financial volatility, and shifts the focus from production to consumption. How will this metamorphosis impact on Latin-American development? What are the ways to overcome the stage of mere exchange of commodities for industrial products? How to move forward to a technology transfer that fosters innovation and facilitates export diversification? World-class authors, diplomats, negotiators, academics and private sector representatives analyze here the outlook of the linkage with the Asian giant. From an interdisciplinary approach, the Institute for the Integration of Latin America and the Caribbean (INTAL), a unit of the Department of Integration and Trade of the Inter-American Development Bank (IDB), makes through this volume a contribution to building a regional agenda to jointly address the questions of the current scenario.
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Bristol, C. C., and E. Froese. Highly Metamorphosed Altereed Rocks Associated With the Osborne Lake Volcanogenic Massive Sulphide Deposit. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127269.

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Schetselaar, E. M., G. Bellefleur, and P. Hunt. Integrated analyses of density, P-wave velocity, lithogeochemistry, and mineralogy to investigate effects of hydrothermal alteration and metamorphism on seismic reflectivity: a summary of results from the Lalor volcanogenic massive-sulfide deposit, Snow Lake, Manitoba. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/327999.

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We present herein a summary of integrated data analyses aimed at investigating the effects of hydrothermal alteration on seismic reflectivity in the footwall of the Lalor volcanogenic massive-sulfide (VMS) deposit, Manitoba. Multivariate analyses of seismic rock properties, lithofacies, and hydrothermal alteration indices show an increase in P-wave velocity for altered volcanic and volcaniclastic lithofacies with respect to their least-altered equivalents. Scanning electron microscopy-energy dispersive X-ray spectrometry analyses of drill-core samples suggest that this P-wave velocity increase is due to the high abundance of high P-wave velocity aluminous minerals, including cordierite, Fe-Mg amphibole, and garnet, which in volcanic rocks are characteristic of VMS-associated hydrothermal alteration metamorphosed in the amphibolite facies. A seismic synthetic profile computed from a simple amphibolite-facies mineral assemblage model, consisting of mafic-felsic host rock contacts, a sulfide ore lens, and a discordant hydrothermal conduit, show enhanced seismic reflections at conduit-host rock contacts in comparison to the equivalent greenschist facies mineral assemblage model. Collectively our results suggest that VMS footwall hydrothermal alteration zones metamorphosed under middle- to upper-amphibolite facies conditions have enhanced potential for seismic detection.
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Shpigel, Muki, Allen Place, William Koven, Oded (Odi) Zmora, Sheenan Harpaz, and Mordechai Harel. Development of Sodium Alginate Encapsulation of Diatom Concentrates as a Nutrient Delivery System to Enhance Growth and Survival of Post-Larvae Abalone. United States Department of Agriculture, September 2001. http://dx.doi.org/10.32747/2001.7586480.bard.

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The major bottlenecks in rearing the highly priced gastropod abalone (Haliotis spp.) are the slow growth rate and the high mortality during the first 8 to 12 weeks following metamorphosis and settling. The most likely reason flor these problems is related to nutritional deficiencies in the diatom diet on which the post larvae (PL) feed almost exclusively in captivity. Higher survival and improved growth rate will reduce the considerable expense of hatchery-nursery resisdence time and thereflore the production costs. BARD supported our research for one year only and the support was given to us in order to prove that "(1) Abalone PL feed on encapsulated diatoms, and (2) heterotrophic diatoms can be mass produced." In the course of this year we have developed a novel nutrient delivery system specifically designed to enhance growth and survival of post-larval abalone. This approach is based on the sodium-alginate encapsulation of heterotrophically grown diatoms or diatom extracts, including appetite-stimulating factors. Diatom species that attract the PL and promote the highest growth and survival have been identified. These were also tested by incorporating them (either intact cells or as cell extracts) into a sodium-alginate matrix while comparing the growth to that achieved when using diatoms (singel sp. or as a mixture). A number of potential chemoattractants to act as appetite-stimulating factors for abalone PL have been tested. Preliminary results show that the incorporation of the amino acid methionine at a level of 10-3M to the sodim alginate matrix leads to a marked enhancement of growth. The results ol these studies provided basic knowledge on the growth of abalone and showed that it is possible to obtain, on a regular basis, survival rates exceeding 10% for this stage. Prior to this study the survival rates ranged between 2-4%, less than half of the values achieved today. Several diatom species originated from the National Center for Mariculture (Nitzchia laevis, Navicula lenzi, Amphora T3, and Navicula tennerima) and Cylindrotheca fusiformis (2083, 2084, 2085, 2086 and 2087 UTEX strains, Austin TX) were tested for heterotrophic growth. Axenic colonies were initially obtained and following intensive selection cycles and mutagenesis treatments, Amphora T3, Navicula tennerima and Cylindrotheca fusiformis (2083 UTEX strain) were capable of growing under heterotrophic conditions and to sustain highly enriched mediums. A highly efficient selection procedure as well as cost effective matrix of media components were developed and optimized. Glucose was identified as the best carbon source for all diatom strains. Doubling times ranging from 20-40 h were observed, and stable heterotroph cultures at a densities range of 103-104 were achieved. Although current growth rates are not yet sufficient for full economical fermentation, we estimate that further selections and mutagenesis treatments cycles should result in much faster growing colonies suitable for a fermentor scale-up. As rightfully pointed out by one of the reviewers, "There would be no point in assessing the optimum levels of dietary inclusions into micro-capsules, if the post-larvae cannot be induced to consume those capsules in the first place." We believe that the results of the first year of research provide a foundationfor the continuation of this research following the objectives put forth in the original proposal. Future work should concentrate on the optimization of incorporation of intact cells and cell extracts of the developed heterotrophic strains in the alginate matrix, as well as improving this delivery system by including liposomes and chemoattractants to ensure food consumption and enhanced growth.
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Fontaine, A., B. Dubé, M. Malo, V. J. McNicoll, T. Brisson, D. Doucet, and J. Goutier. Geology of the metamorphosed Roberto gold deposit (Éléonore Mine), James Bay region, Quebec: diversity of mineralization styles in a polyphase tectonometamorphic setting. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2015. http://dx.doi.org/10.4095/296643.

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