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| Registros recuperados: 93 | |
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| Tovar-ramirez, D.; Mazurais, David; Gatesoupe, J. F.; Quazuguel, Patrick; Cahu, Chantal; Zambonino-infante, J. L.. |
| The main goal of this work was to determine the effect of dietary live yeast Debaryomyces hansenii on the enzymatic antioxidative status of sea bass Dicentrarchus labrax larvae. Growth, activity and expression of the main antioxidative enzymes: catalase (CAT), glutathione peroxidase (GPX) and superoxide dismutase (SOD), and heat shock protein (HSP70) were measured in sea bass larvae at 23 and 48 days after hatching. Larvae were fed on two microdiets: group one, fed microdiet containing live yeast and the control group fed microdiet without yeast. Heat shock protein 70 showed the same expression levels in both fish larvae fed yeast and the control diet. The group fed D. hansenii showed highest growth and lower activity and expression levels of GPX and SOD... |
| Tipo: Text |
Palavras-chave: Antioxidant enzymes; Probiotics; Debaryomyces hansenii; Dicentrarchus labrax. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00002/11299/7881.pdf |
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| Ferrari, Sebastien; Chatain, Beatrice; Cousin, Xavier; Leguay, Didier; Vergnet, Alain; Vidal, Marie-odile; Vandeputte, Marc; Begout, Marie-laure. |
| Although individual electronic tagging using PIT (Passive Integrated Transponder) tags is well established, it is mainly used for fish > 60 mm in length. Since electronic tagging is an ideal identification method, we used RFID (Radio Frequency Identification) microtags (6 mm in length, 1 mm in diameter, 10 mg in mass) to characterize individual fish from the early stages of their development and throughout their lifecycles. We used sea bass, Dicentrarchus labrax, (105 day-old fish weighing between 100 and 1100 mg) and studied the effects of intra-coelomic tagging in half the population using different endpoints including survival and tag reading, growth over 6 months and swimming responses. Dead fish were counted daily, biometric data were collected at... |
| Tipo: Text |
Palavras-chave: Tagging effects; Swimming behavior; Sexual dimorphism; Dicentrarchus labrax. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00175/28645/27072.pdf |
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| Daule, Sophie; Vandeputte, Marc; Vergnet, Alain; Guinand, Bruno; Grima, Laure; Chatain, Beatrice. |
| Feed efficiency is a major goal for aquaculture sustainability, and selecting fish to genetically enhance this trait would be highly valuable. However, no selective breeding program specifically targeted to feed efficiency exists for farmed fish, mostly because of the difficulty of measuring individual feed intake. However, a negative phenotypic correlation between feed efficiency and weight loss at fasting has been previously demonstrated in sea bass submitted to feed deprivation (FD). We mated sea bass parents selected for their high (FD+) or low (FD-) weight loss at fasting to produce FD+ and FD- progeny, which were reared in a single tank to avoid common environmental effects. At 8 months of age, 1200 of those fish were submitted to three alternating... |
| Tipo: Text |
Palavras-chave: European sea bass; Dicentrarchus labrax; Selective breeding; Feed efficiency; Fasting tolerance. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00189/29985/28483.pdf |
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| Omnes, Marie-helene; Le Goasduff, Julien; Le Delliou, Herve; Le Bayon, Nicolas; Quazuguel, Patrick; Robin, Jean. |
| Plant-based products in fish diets are valuable protein alternatives to fishmeal for the aquafeed industry. Many plant feed ingredients contain polyphenolic compounds, including tannins, which can have beneficial or adverse effects. The tolerable threshold of ingested tannins is unknown for marine carnivorous fishes. We studied the effects of tannic acid (TA) supplementation to the diet of juvenile European seabass (Dicentrarchus labrax) by measuring growth, feed utilization and digestibility, and carcass composition. We randomly allocated groups of fish (initial mean body weight of 10.2 ± 0.7 g; n = 40 fish per tank) to 12 replicate cylindrical-conical tanks (three per treatment). The fish were assigned to one of four dietary treatments for five weeks:... |
| Tipo: Text |
Palavras-chave: Dicentrarchus labrax; Polyphenolic tannin; Growth; Digestibility; Carcass composition. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00374/48478/48767.pdf |
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| Bado-nilles, Anne; Quentin, Claire; Le Floch, Stéphane; Arzel, Jacqueline; Auffret, Michel; Gagnaire, Beatrice; Renault, Tristan; Thomas-guyon, Hélène. |
| Estuaries and coastal areas are often subjected to much pollution, including pesticides and polycyclic aromatic hydrocarbons (PAHs) produced by anthropic activities. Bay of Marennes-Oléron is an estuarine coastal zone in which there is a high level of aquacultural production and this has adverse effects in aquatic organisms. In fact, PAHs, which are widely spread throughout aquatic ecosystems, have a low polarity and so there is a clear tendency to bioaccumulate in marine organisms (1). The harmful effects of such contaminants on the organism's immune system, leading to a decreased resistance to pathogens, is a relatively new area of research and it still poorly understood. The aim of the present work was to detect the impact in vivo of PAHs on the immune... |
| Tipo: Text |
Palavras-chave: PaHs; Fish; Contamination; Dicentrarchus labrax. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/acte-3427.pdf |
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| Barnabe, Gilbert. |
| Sampling of a population of D. Labrax was one with spear diving catches. Morphometric and meristic data were used to calculate a biometric index. This index showed that all the bass of the Sete area belong to Dicentrarchus labrax, even if they were black spotted on the upper part of the body. Morphology was slightly different according to sex, but sex determination was not always possible using morphometric data. This inshore population shows some morphological characteristics (branchiospine and lateral line scale number) different from the data collected on the same sp along the Maroc Atlantic coast by Gravier, 1961. |
| Tipo: Text |
Palavras-chave: Mediterranean sea; Biometry; Anatomy; Morphology; Dicentrarchus labrax. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-2153.pdf |
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| Barnabe, G.; Tournamille, J.-c.. |
| Mature eggs were expressed from captured female and fertilised artificially with slightly bloody sperm, in dry conditions or in a humid atmosphere, both at 13 degree C. The best incubation conditions proved to be 13 degree C, with streptomycin and penicillin. Another sample was kept at 18 degree C. Hatching occurred after 4 or 5 days, larvae showing positive phototropism. The system of renewal of water and artificial food is described. The embryonic reserve drop of lipid disappeared between day 14 and 16. Observations on larvae were like previous ones, but live larvae had larger mouths than had fixed specimens, and it was found that temperatures of 13 degree C or 18 degree C were suitable beyond the egg stage. A sudden change in temperature caused by a... |
| Tipo: Text |
Palavras-chave: Temperature; Sperm; Eggs; Dicentrarchus labrax; Artificial reproduction. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2063.pdf |
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| Siddique, Mohammad A. Momin; Butts, Ian A. E.; Linhart, Otomar; Macias, Adrian D.; Fauvel, Christian. |
| Studying gamete biology can provide important information about a species fertilization strategy as well as their reproductive ecology. Currently, there is a lack of knowledge about how long sea bass Dicentrarchus labrax eggs can remain viable after being activated in seawater. The objectives of this study were to understand the effects of pre-incubation of fresh and overripe sea bass eggs in seawater and to determine the duration of egg receptivity. Pooled eggs (fresh and overripe) from four females were pre-incubated in seawater for 0 min (control), 0.5 min, 1 min, 3 min, 10 min and 30 min and then fertilized by pooled sperm from four males. The fresh eggs had a higher fertilization success than overripe eggs. Our results revealed a significant effect of... |
| Tipo: Text |
Palavras-chave: Egg longevity; Overripe eggs; Reproductive ecology; Mediterranean sea bass; Dicentrarchus labrax. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00279/39000/37580.pdf |
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| Peruzzi, Stefano; Chatain, Beatrice; Menu, Bruno. |
| The nuclear DNA content in Dicentrarchus labrax, Sparus aurata, Liza ramada, and Anguilla anguilla, was measured by flow cytometric analysis. Male human leukocytes were used as internal reference cells. Nucleated fish erythrocytes were stained simultaneously to human leukocytes with a staining buffer containing propidium iodide (PI). Nuclear DNA contents of target species were estimated in relation to an assigned value of 7.0 pg DNA for male human leukocytes. The DNA content/nucleus (+/- CI) was 1.55 +/- 0.02 pg for D. labrax, 1.90 +/- 0.03 pg for S. aurata, 1.57 +/- 0.02 pg for L. ramada, and 2.43 +/- 0.04 pg for A. anguilla. Intraspecific DNA content variations ranged from 0-9% and averaged around 4% in all taxa. The results did not evidence significant... |
| Tipo: Text |
Palavras-chave: Anguilla anguilla; Liza ramada; Sparus aurata; Dicentrarchus labrax; Teleosts; DNA content. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-411.pdf |
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| Oral, Munevver; Colleter, Julie; Bekaert, Michhttps://w3.ifremer.fr/archimer-admin/author.jsp#ael; Taggart, John B.; Palaiokostas, Christos; Mcandrew, Brendan J.; Vandeputte, Marc; Chatain, Beatrice; Kuhl, Heiner; Reinhardt, Richard; Peruzzi, Stefano; Penman, David J.. |
| Background Fully isogenic lines in fish can be developed using “mitotic” gynogenesis (suppression of first zygotic mitosis following inactivation of the sperm genome). However, genome-wide verification of the steps in this process has seldom been applied. We used ddRADseq to generate SNP markers in a meiotic gynogenetic family of European seabass (Dicentrarchus labrax): (i) to verify the lack of paternal contribution in a meiotic gynogenetic family; (ii) to generate a gene-centromere map from this family; (iii) to identify telomeric markers that could distinguish mitotic gynogenetics from meiotic gynogenetics, which sometimes arise spontaneously in mitotic gynogenetic families. Results From a single meiotic gynogenetic family consisting of 79 progeny, 42... |
| Tipo: Text |
Palavras-chave: Dicentrarchus labrax; Meiotic gynogenesis; Isogenic lines; DdRAD seq; Genetic map; Gene-Centromere map; Aquaculture. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00388/49901/50462.pdf |
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| Registros recuperados: 93 | |
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