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Dissertations / Theses on the topic 'Gilthead seabream'

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Published: 4 June 2021

Last updated: 26 July 2025

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1

Brown, Richard Cameron. "Genetic management and selective breeding in farmed populations of gilthead seabream (Sparus aurata)." Thesis, University of Stirling, 2004. http://hdl.handle.net/1893/74.

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Gilthead seabream (Sparus aurata) is one of the most important species of intensively reared fish in the Mediterranean region. Its short history of domestication, along with the need to develop markets, new products and efficiency in the production process, has resulted in an increased interest in the potential genetic improvement of this species. Little work has so far been directed at establishing the procedures for selective breeding in gilthead seabream at a commercial level, although genetic parameters calculated in other studies have indicated that there is a large potential for improvem

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2

Morris, Paul Christopher. "The water-soluble vitamin nutrition of the gilthead seabream (Sparus aurata L.)." Thesis, University of Plymouth, 1994. http://hdl.handle.net/10026.1/2623.

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Given the paucity of information with regards the micronutrient requirements of the currently expanding number of cultured marine species, a series of investigations was undertaken to examine the water-soluble vitamin nutrition of the gilthead seabream (Sparus aurata L.). A preliminary study identified the qualitative requirement of this species for ascorbic acid, the B complex vitamins and choline for the maintenance of health and optimum productivity. Based on the observations of the preliminary experiment, a study was designed which allowed the development of a semi-purified diet and illust

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3

Pereira, Vitória Sofia Almeida Santos. "Protective effects of seaweed feed supplementation towards genetic integrity in gilthead seabream (Sparus aurata)." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/22364.

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Mestrado em Biologia Marinha<br>The DNA integrity and stability are essential to organisms’ health, fitness and, ultimately, to survival. This matter has been neglected in what concerns to fish in aquaculture systems, disregarding the potential impacts of both endogenous and exogenous factors. The manipulation of rearing conditions to achieve a fast-growing performance, as well as the occurrence (intentional or accidental) of agents/conditions, such as disinfectants, anesthetics, antibiotics and waterborne contaminants, may create stressful conditions passible to affect DNA integrity. Furtherm

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4

Rodrigues, Bernardete Lopes. "Chronobiology in coping styles of gilthead seabream (S. aurata): understanding individual variation in biological rhythms." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17244.

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5

Boj, Lidón Mónica María. "Aquaporin biology during spermatogenesis and sperm physiology in the marine teleost gilthead seabream (Sparus aurata)." Doctoral thesis, Universidad de Alicante, 2016. http://hdl.handle.net/10045/57628.

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6

Seremeti, Maria Makri. "Evaluation of the quality of individual quick frozen fish products." Thesis, Robert Gordon University, 2007. http://hdl.handle.net/10059/648.

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In the present study the effects of characteristic freezing times and storage time at -22°C on the quality of the adductor muscle of post-rigor scallops (Pecten maximus)and gilthead seabream fillets (Sparusa urata) were studied in regard to the integrity of muscle structure, myofibrillar protein denaturation and aggregation, lipid degradation, texture and sensory changes. This information would be useful for achieving optimal conditions for freezing these species and assessing their quality during frozen storage for commercial purposes. Scallop muscles and gilthead seabream fillets were frozen

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7

Carraro, Roberta. "Genomic prediction of resistance to Photobacterium damselae subsp. piscicida and Sparicotyle chrysophrii in gilthead seabream (Sparus aurata) using 2B-RAD sequencing." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3424689.

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Context: Gilthead seabream (Sparus aurata) is a highly important farmed fish species specifically in the Mediterranean aquaculture industry. Infectious diseases present a significant threat to the sustainability of aquaculture with high economic losses due to mortalities, reduced productivity, and the necessity of additional treatments/vaccinations. Specific and sensitive methods for the detection of fish pathogens represent useful tools to investigate infection dynamics and enable early detection of the disease for better prevention. Selection and breeding for resistance against infectious di

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8

Estruch, Cucarella Guillem. "ASSESSMENT OF THE LONG-TERM IMPACT OF HIGH PLANT PROTEIN DIETS ON THE INTESTINAL STATUS OF THE ON-GROWING GILTHEAD SEA BREAM (Sparus aurata, L.)." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/113063.

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Aunque el uso de altos niveles de fuentes de proteína vegetal en piensos para doradas de engorde se ha alcanzado con éxito en cuanto al crecimiento, estas dietas todavía están asociadas a efectos negativos en la eficiencia nutricional y en la capacidad inmunitaria. El intestino es el órgano donde se produce la primera interacción entre el pez, los nutrientes y las bacterias del medio, y desarrolla un papel crucial en la digestión de los nutrientes y la respuesta infamatoria e inmune. Esta tesis doctoral se centra en el impacto de distintas dietas con altos niveles de proteína vegetal, y especi

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9

Ibarra, Zatarain Zohar. "The role of stress coping style in reproduction and other biological aspects in the aquaculture species, Senegalese sole (Solea senegalensis) and gilthead seabream (Sparus aurata)." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/322809.

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Los individuos de una misma población consistentemente difieren en sus respuestas al estrés y comúnmente se reconocen como estilos afrontamiento al estrés (EAE). Los EAE se caracterizan por dos tipos comportamientos: proactivo y reactivo. Los peces proactivos se reconocen por su mayor actividad, son impulsivos en sus decisiones, se arriesgan más en situaciones de peligro y muestran bajos niveles de glucocorticoides, en comparación con los peces reactivos. Numerosos estudios han demostrado que los EAE influyen en importantes aspectos biológicos de los peces, como crecimiento, salud, resistencia

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10

Adamidou, Styliani. "Effect of extrusion on the nutritional value of peas (Pisum sativum), chickpeas (Cicer arietinum) and faba beans (Vicia faba) and inclusion in feeds for European seabass (Dicentrarchus labrax) and gilthead seabream (Sparus aurata)." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/615.

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The current general economic and food crises have generated an unsettled future for food and feed production and prices in general. Increasing demand, prices and fluctuations in supply in world markets for fishmeal, fish oil, soybean meal, maize and wheat meal emphasize the need to reduce the dependence of the fish feed industry on these ingredients by increasing choices among a wider range of raw materials. Legume seed such as peas, chickpeas and faba beans are promising ingredients for aquafeeds due to their high protein compared to cereals but also for their energy content. The objective of

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11

Mercier, Lény. "Apports de la microchimie pour l'étude des migrations de la Daurade royale (Sparus aurata L.) dans le Golfe du Lion : avancées méthodologiques pour un suivi précis des mouvements mer-lagunes." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20222.

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La daurade royale (Sparus aurata, L.) est une espèce migratrice, connue pour coloniser les lagunes côtières, fortement anthropisées, du printemps à l'automne. Identifier les lagunes clés pour l'accomplissement du cycle de vie doit donc permettre de mieux gérer et protéger les populations de daurades du Golfe du Lion. Dans ce cadre, la microchimie de l'otolithe est un outil précieux. Au cours de sa croissance, cette concrétion de l'oreille interne incorpore des éléments chimiques prélevés dans le milieu. Piégés dans le réseau cristallin, ils sont une image des conditions environnementales renco

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12

Cléach, Jérôme. "Recherche et études de marqueurs précoces permettant de déterminer l'état de fraicheur de filets de poissons." Thesis, Littoral, 2018. http://www.theses.fr/2018DUNK0497/document.

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La fraîcheur est un paramètre clé de la qualité du poisson. Les méthodes actuelles appliquées en routine pour déterminer la fraîcheur du poisson ne sont pas applicables à toutes les espèces et reflètent davantage un début d'altération du produit. Ainsi, la recherche d'indicateurs précoces de fraîcheur du poisson représente encore un défi majeur et d'actualité dans l'industrie de la pêche. Le but de ces travaux de thèse était de démontrer que les fonctions et l'intégrité mitochondriales étaient susceptibles de constituer des indicateurs précoces de la fraîcheur de filets de poisson. En effet, l

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13

Torres, Rodríguez Miguel. "Estudio de los patrones de expresión de genes implicados en la síntesis de ácidos grasos de cadena muy larga durante el desarrollo de la dorada y el lenguado, y su regulación nutricional." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/166619.

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[ES] Los ácidos grasos de cadena muy larga (VLC-FA; >C24), aunque presentes en pequeñas cantidades, juegan un importante papel para el correcto desarrollo y funcionalidad de los tejidos neurales en vertebrados, especialmente durante su desarrollo temprano. Sin embargo, a pesar de su aparente importancia, los estudios sobre estos compuestos en peces son escasos. La biosíntesis de los VLC-FA se lleva a cabo mediante las denominadas proteínas de elongación de los ácidos grasos de cadena muy larga 4 (Elovl4) y, en consecuencia, la dotación y la función de estas enzimas determinan la capacidad endó

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14

Houston, Sam James Silver. "Assessing EPA + DHA requirements of Sparus aurata and Dicentrarchus labrax : impacts on growth, composition and lipid metabolism." Thesis, University of Stirling, 2018. http://hdl.handle.net/1893/27444.

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The gilthead seabream (Sparus aurata) and European seabass (Dicentrarchus labrax) require n-3 long-chain polyunsaturated fatty acids (LC-PUFA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), for optimal growth and health. Due to the rapid growth of global aquaculture the quantity of marine oils used in aquafeeds has been limited, yet the overall quantity of oil in an aquafeed has increased by the addition of vegetable oil (VO) to supply dietary energy. For aquaculture to continue to grow more fish must be produced with less marine ingredients, yet EPA and DHA must be maintained at

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15

Sánchez, Hernández Miriam. "Efecto de la testosterona en el sistema reproductor e inmunitario de la dorada (Sparus aurata L.). Identificación de una variante constitutivamente activa del receptor de andrógenos.= Effect of testosterone on reproductive and immune systems of gilthead seabream (Sparus aurata L.). Identification of a constitutively active androgen receptor variant." Doctoral thesis, Universidad de Murcia, 2013. http://hdl.handle.net/10803/129378.

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En la siguiente Tesis Doctoral hemos analizado la influencia de la testosterona (T) exógena sobre el metabolismo de esteroides sexuales y la fisiología de la gónada de la dorada (Sparus aurata L.). Además hemos descrito la presencia de un mecanismo de procesamiento alternativo del ARN, para el receptor de andrógenos (AR), cuya expresión varía con el estado reproductor y se correlaciona con el nivel de T. Esta forma truncada del AR está presente en los granulocitos acidófilos (GAs), descubriéndonos así nuevos mecanismos de regulación en la biología de los neutrófilos de vertebrados. El uso de l

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16

Cabas, Sánchez Isabel. "Efecto del 17a-etinilestradiol sobre el sistema inmunitario y reproductor de la dorada (Sparus aurata L.). Caracterización funcional del receptor de estrógenos asociado a proteína G = Effect of 17a-ethinylestradiol on inmune and reproductive system of the gilthead seabream (Sparus aurata L.). Functional characterization of the G protein-couplet estrogen receptor." Doctoral thesis, Universidad de Murcia, 2013. http://hdl.handle.net/10803/120449.

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OBJETIVOS: 1. Evaluar la capacidad del EE2 de provocar una respuesta estrogénica en vivo en ejemplares macho de dorada 2. Evaluar la capacidad del EE2 de alterar la fisiología y la respuesta inmunitaria local de la gónada 3. Evaluar la habilidad del EE2 de alterar la respuesta inmunitaria sistémica, analizando actividades inmunitarias de leucocitos de riñón cefálico, el perfil de expresión de macrófagos y la capacidad en vivo de responder a un reto inmunológico. 4. Realizar una caracterización funcional del receptor de estrógenos asociado a proteína G tanto in vitro como in vivo. METODOLOGÍA:

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17

Jorge, Sara Silva. "Effect of microalgae in Gilthead seabream (Sparus aurata) diets." Master's thesis, 2016. https://repositorio-aberto.up.pt/handle/10216/94530.

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18

Jorge, Sara Silva. "Effect of microalgae in Gilthead seabream (Sparus aurata) diets." Dissertação, 2016. https://repositorio-aberto.up.pt/handle/10216/94530.

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19

Wang, Wenjing. "Neuronal effects of ocean acidification in gilthead seabream (Sparus aurata)." Master's thesis, 2019. http://hdl.handle.net/10400.1/14926.

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As atmospheric CO2 increases, so does the amount of CO2 dissolved in the ocean; this causes ocean acidification. The impact of ocean acidification on marine biodiversity and ecosystems has received considerable attention; however, study of its effects on fish physiology and behaviour is just beginning. Although there is evidence that the atmospheric CO2 concentrations predicted to occur by the end of this century have mal-adaptive effects on olfactory-mediated behaviour of reef fish, the cellular mechanism(s) involved is unclear. In the current study, we recorded the olfactory responses

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20

Güthler, Karen [Verfasser]. "Studies of phosphorus requirements in gilthead seabream (Sparus aurata) and of potential use of supplementary phytase in gilthead seabream and rainbow trout (Oncorhynchus mykiss) / von Karen Güthler." 2005. http://d-nb.info/977295877/34.

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21

Pinto, Lourenço de Oliveira Coelho e. Ramos. "Effects of dietary creatine supplementation in gilthead seabream (Sparus aurata) muscle growth." Master's thesis, 2015. https://repositorio-aberto.up.pt/handle/10216/82424.

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Pinto, Lourenço de Oliveira Coelho e. Ramos. "Effects of dietary creatine supplementation in gilthead seabream (Sparus aurata) muscle growth." Dissertação, 2015. https://repositorio-aberto.up.pt/handle/10216/82424.

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23

Matos, Elisabete. "Nutrition and farming practices as modulators of quality in gilthead seabream (Sparus aurata)." Doctoral thesis, 2013. http://hdl.handle.net/10400.1/5757.

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Gilthead seabream is the most important farmed species in the Mediterranean, and knowledge on how common farming practices impact its quality is limited. As such, this Thesis aimed to evaluate how gilthead seabream flesh quality is affected by some of these practices. In Chapter 2, the influence of nutritional factors was evaluated, specifically the high replacement of traditional marine-derived ingredients, both fishmeal and fish oil, with vegetable sources. We have seen that the vegetable-based diets tested did not greatly impact seabream flesh quality, although some alterations were seen in

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24

MHALHEL, Kamel. "LARVAL PERFORMANCE AND SKELETAL DEFORMITIES IN FARMED GILTHEAD SEABREAM: THE POTENTIAL EFFECTS OF MELATONIN." Doctoral thesis, 2022. https://hdl.handle.net/11570/3244093.

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The gilthead seabream larval rearing in continuous light is a common practice in most Mediterranean hatcheries to increase food intake, improves the conversion rate, and stimulate larval growth in length. Nevertheless, numerous investigations have revealed that continuous light interrupts circadian rhythm alternation, affects larval development and raises the prevalence of skeletal abnormalities. Melatonin, the major output signal of the circadian system, is a crucial pineal neurohormone that stimulates cell proliferation and embryonic development in many teleosts and enhances osseointegration

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Moutinho, Sara Patrícia Pinto. "Potential use of meat and bone meal in diets for gilthead seabream (Sparus aurata) juveniles." Master's thesis, 2015. https://repositorio-aberto.up.pt/handle/10216/82318.

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Moutinho, Sara Patrícia Pinto. "Potential use of meat and bone meal in diets for gilthead seabream (Sparus aurata) juveniles." Dissertação, 2015. https://repositorio-aberto.up.pt/handle/10216/82318.

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27

Barrios, Guzmán Carmen Lucía. "Modulation of bone metabolism and mineralization in gilthead seabream (Sparus aurata) fed various vegetable oil sources." Master's thesis, 2013. http://hdl.handle.net/10400.1/6026.

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Little information exists on the role of dietary lipids on the bone metabolism in fish. A trial was undertaken to evaluate the effect of dietary lipid sources as modulators of bone fatty acid composition, mineralization and skeletal metabolism in fast-growing seabream juveniles. Twelve homogenous groups of 25 seabream juveniles each (mean initial body weight of 39.3  1.4 g) were stocked in 90 L tanks and fed one of four semi-purified experimental diets formulated to be isonitrogenous (crude protein, 46% DM), isolipidic (15% DM) and isoenergetic, but with variable oils sources. The dietary lip

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28

Ribeiro, Pedro Campelos. "Utilization of novel sustainable feed materials in aquafeeds towards the fortification of gilthead seabream (Sparus aurata)." Master's thesis, 2019. https://hdl.handle.net/10216/125122.

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Ribeiro, Pedro Campelos. "Utilization of novel sustainable feed materials in aquafeeds towards the fortification of gilthead seabream (Sparus aurata)." Dissertação, 2019. https://hdl.handle.net/10216/125122.

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30

Barbosa, Rita Isabel Pontes. "Dietary biodiesel-derived crude glycerol in gilthead seabream juveniles (Sparus aurata): effects on growth performance and metabolism." Master's thesis, 2012. http://hdl.handle.net/10400.1/5599.

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In the European Union the turn towards renewable energy sources has increased the production of biodiesel from rapeseed oil, leaving glycerol (also known as glycerin) as a valuable by-product. For every litre of biodiesel produced, approximately 79 g of crude glycerol are generated. As the biodiesel production grows, the quantity of crude glycerol generated will be considerable and its utilization will become an urgent topic. One possibility is the use of crude glycerol on animal feeds. Glycerol has been evaluated as a dietary energy source for several farm animals, including fish. A stu

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31

Santos, Paulo Joaquim da Silva. "Immune responses of gilthead seabream (Sparus aurata) to Photobacterium damselae subsp. piscicida infection: searching for health biomarkers." Master's thesis, 2020. https://hdl.handle.net/10216/131837.

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Santos, Paulo Joaquim da Silva. "Immune responses of gilthead seabream (Sparus aurata) to Photobacterium damselae subsp. piscicida infection: searching for health biomarkers." Dissertação, 2020. https://hdl.handle.net/10216/131837.

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Ruiz, María Cámara. "Effects of purslane (Portulaca oleracea L.) and Shewanella putrefaciens probiotic enriched diet on gilthead seabream (Sparus aurata L.)." Master's thesis, 2017. http://hdl.handle.net/10400.1/10600.

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Dissertação de mestrado, Aquacultura e Pescas, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2017<br>The intensification of aquaculture has resulted in a series of detrimental effects to both the environment and human health. A major setback of the intensification of aquaculture systems has been the economic losses caused by the high mortality rates due fish diseases. In order to prevent and/or treat fish diseases, large amounts of veterinary drugs have been administered over the last few decades in fish farms. However, the excessive administration of antibiotics and other chemi

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Rosado, Daniela Filipa Gonçalves Martins. "To be or not to be diseased: microbial dynamics and dysbiosis in farmed European seabass and gilthead seabream." Doctoral thesis, 2021. https://hdl.handle.net/10216/136691.

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35

Mateus, Rute Luis de Almeida. "EVALUATION OF ALGAL BIOMASSES IN DIETS FOR GILTHEAD SEABREAM (Sparus aurata) JUVENILES- EFFECTS ON IMMUNE CONDITION AND GENERAL PERFORMANCE." Master's thesis, 2020. https://hdl.handle.net/10216/131972.

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Mateus, Rute Luis de Almeida. "EVALUATION OF ALGAL BIOMASSES IN DIETS FOR GILTHEAD SEABREAM (Sparus aurata) JUVENILES- EFFECTS ON IMMUNE CONDITION AND GENERAL PERFORMANCE." Dissertação, 2020. https://hdl.handle.net/10216/131972.

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Cabano, Miguel Orelhas. "Impact of fish meal replacement by alternative and sustainable ingredients in diets for gilthead seabream (Sparus aurata Linnaeus, 1758) juveniles." Master's thesis, 2017. http://hdl.handle.net/10400.1/10556.

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Dissertação de mestrado, Aquacultura e Pescas, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2017<br>Aquaculture is the animal production sector that is growing at a faster rate in the world but in the last decades, as fish meal has been widely used as the main dietary protein source, the industry became highly dependent on this ingredient. Fish meal prices are predicted to increase in the next 15 years, and aquaculture cannot be dependent on this protein source if the same growth registered in the past is maintained. Based on this fact, alternatives to fish meal that offer the

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Diógenes, Alexandre Firmino. "Potential of corn distillers dried grains with solubles (DDGS) in diets for turbot (Scophthalmus maximus) and gilthead seabream (Sparus aurata)." Doctoral thesis, 2018. https://repositorio-aberto.up.pt/handle/10216/113291.

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Campos, Pedro Miguel Azevedo Reis Moreira. "Potential use of poultry meal in diets for gilthead seabream (sparus aurata): effect on growth performance, feed utilization and digestibility." Master's thesis, 2016. https://repositorio-aberto.up.pt/handle/10216/100115.

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Campos, Pedro Miguel Azevedo Reis Moreira. "Potential use of poultry meal in diets for gilthead seabream (sparus aurata): effect on growth performance, feed utilization and digestibility." Dissertação, 2016. https://repositorio-aberto.up.pt/handle/10216/100115.

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Diógenes, Alexandre Firmino. "Potential of corn distillers dried grains with solubles (DDGS) in diets for turbot (Scophthalmus maximus) and gilthead seabream (Sparus aurata)." Tese, 2018. https://repositorio-aberto.up.pt/handle/10216/113291.

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42

Lupatsch, Ingrid [Verfasser]. "Factorial approach to determining energy and protein requirements of gilthead seabream (Sparus aurata) for optimal efficiency of production / von Ingrid Lupatsch." 2003. http://d-nb.info/972161449/34.

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Pinto, Idílio Jorge Matias Pereira. "Cloning of the Bone Gla Protein gene from the teleost fish Sparus aurata (gilthead seabream). Molecular organization, developmental appearance and evolutionary implications." Doctoral thesis, 2001. http://hdl.handle.net/10400.1/7187.

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Tese de Doutoramento, Biologia Molecular, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, 2001<br>A proteína Bone Gla (BGP, osteocalcina) é uma pequena proteína dependenteda. vitamina K que apresenta resíduos de ácido glutâmico y-carboxilados. A presença destes aminoácidos modificados permite à proteína ligar-se a iões Ca2+ e interagir com os cristais de hidroxiapatite dos tecidos mineralizados.<br>The Bone Gla Protein (BGP, osleocalcin) is a small vilamin K-dependent protein which presenls Ihree y-carboxylated glutamic acid residues. lhe prcsence oí these modified am

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Viegas, Sofia Isabel Martins. "Effects of a fast growth microdiet on larval development of gilthead seabream (Sparus aurata, Linnaeus, 1758) and meagre (Argyrosomus regius, Asso, 1801)." Master's thesis, 2016. http://hdl.handle.net/10400.1/10166.

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Dissertação de mestrado, Aquacultura e Pescas, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2017<br>Word aquaculture production continues to grow. Nowadays, due to the huge increase in human population, demand for animal products and its derivates is increasing drastically, where aquaculture represents one of the most forms of supplying the world with food. Gilthead seabream, Sparus aurata plays an important commercial role in fisheries and aquaculture in the Mediterranean Sea and north-eastern Atlantic Ocean. Meagre (Argyrosomus regius) have a high growth and food conversion

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Gamito, Sofia. "The benthic ecology of some Ria Formosa lagoons, with reference to the potential for production of the gilthead seabream (Sparua aurata L.)." Doctoral thesis, 1994. http://hdl.handle.net/10400.1/7633.

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Tese de Doutoramento, Ciências Biológicas, Unidade de Ciências e Tecnologia dos Recursos Aquáticos, Universidade do Algarve, 1994<br>Extensive aquaculture is traditional in the Algarve, being practised in lagoons (either in special aquaculture ponds or in water reservoirs of salinas as a supplement to salt production).<br>A aquacultura extensiva no Algarve é uin método de cultura tradicional, sendo praticada em lagoas costeiras (quer em tanques de aquacultura feitos especificamente para esse fim ou em reservatórios de água de salinas como um suplemento para a produção de sal).

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Viegas, Michael. "Effect of polyunsaturated fatty acids (PUFAs) on the proliferation and extracellular matrix mineralization and gene expression of gilthead seabream skeletal cell lines." Master's thesis, 2012. http://hdl.handle.net/10400.1/5597.

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The aquaculture industry aims at replacing significant amounts of marine fish oil by vegetable oils in fish diet. Dietary lipids have been shown to alter the fatty acid composition of bone compartments, which would impact the local production of factors controlling bone formation. Knowledge on the mechanisms underlying the nutritional regulation of bone metabolism is however scarce in fish. Two in vitro bone-derived cell systems developed from seabream (an important species for aquaculture in the Mediterranean region) vertebra, capable of in vitro mineralization and exhibiting prechondro

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Λεονταρίτου, Παναγιώτα. "Επίδραση της αλατότητας και του σταδίου ανάπτυξης στην πλευστότητα αυγών τσιπούρας (Sparus aurata, L. 1758)". 2005. http://nemertes.lis.upatras.gr/jspui/handle/10889/401.

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Η τσιπούρα είναι ένα είδος με ιδιαίτερο εμπορικό ενδιαφέρον. Στην Ελλάδα η εκτροφή της είναι ιδιαίτερα σημαντική. Παρά τη μεγάλη μελέτη λόγω της εκτροφής του είδους, υπάρχουν ακόμα πολλά αναπάντητα ερωτήματα ειδικά σε θέματα της αναπαραγωγής. Η μελέτη που έγινε δίνει πληροφορίες σχετικά με την πλευστότητα αυγών τσιπούρας εκτροφής, προέλευσης Ατλαντικού και Μεσογείου, φυσικής και όψιμης φωτοπεριόδου, όπως αυτή διαμορφώνεται καθ’ όλη τη διάρκεια της αναπαραγωγικής περιόδου (4,5 μήνες) και σε 7 διαφορετικές αλατότητες (32, 33, 34, 35, 36, 37, 38 ppt). Η αλατότητα ωοτοκίας ήταν 40 ppt. Μετρήθηκαν

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Cruz, Villeda Diego Alfredo de la. "Effect of dietary essential oils supplementation on growth performance, protein digestibility and digestive enzymes in juvenile gilthead seabream fed a low fishmeal diet." Master's thesis, 2013. http://hdl.handle.net/10400.1/7232.

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Dissertação de mestrado, Aquacultura e Pescas (Aquacultura), Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2013<br>A study was undertaken to evaluate the efficacy of supplemental essential oils on the growth performance, protein digestibility and digestive enzyme activities in juvenile gilthead seabream fed a plant protein-rich diet. Four practical diets were formulated to be isonitrogenous (crude protein, 45.4% DM), isolipidic (18.5% DM) and isoenergetic (gross energy 21.4 kJ/g DM). The control diet (CTRL) was formulated with low levels of marine-derived proteins (19%). The sam

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Müller, Johannes. "Sparus aurata escapes from offshore fish farms around Madeira." Master's thesis, 2019. http://hdl.handle.net/10400.1/14892.

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In Madeira, an archipelago situated in the North Eastern Atlantic, Sparus aurata was recorded in the wild shortly after the introduction of this species to offshore farming facilities in 1997. In this study, oceanographic and maintenance data of fish farms from Madeira was gathered to evaluate the most relevant factors behind the escapes of Sparus aurata. The community of fish associated with the farming facilities was analysed with the help of an underwater camera-system. Also, previously escaped specimens of S. aurata were caught in the wild, followed by stomach content analysis. Archive dat

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Lopes, André Casimiro Carvalho. "Sonophoresis efficiency: consequences of methyl donors supplementation at early developmental stage in gilthead seabream (Sparus aurata). Effects on growth, nutrient metabolism, egg and larval quality, and methylation patterns of larvae and juvenile fish." Master's thesis, 2016. http://hdl.handle.net/10400.1/10069.

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Dissertação de mestrado, Aquacultura e Pescas, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2016<br>It is essential that the vegetable ingredients that will be use in Aquaculture feeds can maintain the growth parameters in fish when compared with the fish meal diets. Studies have shown that the replacement may be achieved until a certain level without affecting the growth parameters. Sometimes the vegetable diets lack essential amino acids that need to be supplemented in the feeds, one of the amino acids that sometimes is lacking is the Methionine. In this study the gilthe

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