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| Registros recuperados: 31 | |
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| Le Boucher, Richard; Vandeputte, Marc; Dupont-nivet, Mathilde; Quillet, Edwige; Mazurais, David; Robin, Jean; Vergnet, Alain; Medale, Francoise; Kaushik, Sadasivam; Chatain, Beatrice. |
| This preliminary study assessed genotype x diet interaction in late growth of European sea bass (Dicentrarchus labrax) fed with either a fish meal (FM)- or a fish oil (FO)-based diet (M) or an all-plant-based (PB) diet. A total of 550 fish from 224 families were reared together and tagged. DNA was sampled and microsatellites were used to assign parentage. When fish weight was 192 +/- 54 g, two tanks were fed with M (FM: 100%; FO: 100%) and two others with PB (FM: 0% and FO: 0%). Body weight (BW), fork length (FL) and fillet lipid content (CorrFat) were analysed with a linear model and with REML methodology. We observed no significant differences between groups, but a slightly lower (P=0.03) daily growth coefficient in sea bass fed PB than in those fed M.... |
| Tipo: Text |
Palavras-chave: Genotype by diet x environment interaction; European sea bass; Plant diet; Genetic correlation. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00032/14335/12374.pdf |
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| Pagand, Pascal; Blancheton, Jean-paul; Casellas, Claude. |
| Fish excretions and the transformation of nitrogen by bacteria in the nitrifying biofilter are two of the main sources of dissolved inorganic nitrogen (DIN) in fish farms that use recirculating water systems. In this study, the DIN concentration in an experimental Dicentrarchus labrax aquaculture system was calculated using empirical sub-models for fish growth, ingested food and water replacement. The specific growth rate (SGR) (% day(-1)) and the daily feeding rate (DFR) (% day(-1)) both depend on the average weight, W (g), of the fish: Y = aW(b), where Y may be SGR or DFR, and a and b are empirical constants. The DIN discharge rate, Gamma(N) (% of ingested nitrogen), in the experimental aquaculture system was expressed as a function of increasing... |
| Tipo: Text |
Palavras-chave: Recirculating water system; Nitrogen production; Model; Fish farm effluent; European sea bass; Dissolved inorganic nitrogen. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/publication-514.pdf |
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| Di Poi, Carole; Attia, J; Bouchut, C; Dutto, Gilbert; Coves, Denis; Beauchaud, M. |
| The individual food-demand behavior of juvenile European sea bass (Dicentrarchus labrax, L.) reared in groups under self-feeding conditions was investigated. The triggering activity on self-feeder, i.e. index of the food-demand activity, agonistic interactions and territorial behavior were monitored for periods of 42 to 68 days in six groups of 50 fish. The specific growth rate was calculated and the brain serotonergic activity was used as a stable index of social stress. Inter-individual differences appeared in triggering activity and three groups were distinguished: 3-5 high-triggering fish, 17-30 low-triggering fish and the remaining individuals were null-triggering fish. There were no significant differences in specific growth rates calculated at the... |
| Tipo: Text |
Palavras-chave: Social stress; Brain serotonergic activity; Territorial behavior; Agonistic interactions; Self feeding; European sea bass; Triggering activity; Food demand behavior. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2637.pdf |
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| Peruzzi, Stefano; Wiborg-dahle, Stine; Haffray, Pierrick; Chatain, Beatrice; Primicerio, Raul. |
| A method of geometric morphometrics was used to characterize body shape variation in meiotic gynogenetic and triploid sea bass in comparison with diploid controls. A total of 13 coordinate landmark data were recorded on the profile of 34-month-old control (n = 81), gynogenetic (n = 117) and triploid (n = 131) siblings generated from two females (A and B). Three main axes of morphometric variation were consistent, and these accounted for 60.8 and 57.6% of the total variability in females A and B, respectively. There were significant shape deviations of triploid and gynogenetic fish relative to the controls, and differences were particularly evident in the progeny of one female. Overall, triploids displayed a more slender shape than diploids, whereas... |
| Tipo: Text |
Palavras-chave: Body shape variability; Morphometry; Geometry of Procrustes distance; Triploidy; Gynogenesis; European sea bass; Dicentrarchus labrax. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00025/13651/10757.pdf |
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| Dambrine, Chloe; Woillez, Mathieu; Huret, Martin; De Pontual, Helene. |
| Fish habitats sustain essential functions for fish to complete their life cycle, such as feeding, growing and spawning. Conservation is crucial to maintain fish populations and their exploitation. Since 2013, the spawning stock biomass of the northern stock of European seabass (Dicentrarchus labrax) has been in a worrying state. A series of low recruitments with a persistently high level of fishing has been blamed, raising concerns about the processes involved in seabass reproduction and settlement in nurseries. Here, we characterise seabass spawning areas along the French Atlantic coast using vessel monitoring system (VMS) data. A non‐linear geostatistical approach was applied, from 2008 to 2014, to detect locations where seabass aggregate for spawning.... |
| Tipo: Text |
Palavras-chave: Bay of Biscay; Bayesian spatio‐temporal modelling; Dicentrarchus labrax; English Channel; European sea bass; Non‐linear geostatistics; Spawning grounds. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00668/77997/80218.pdf |
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| Geay, Florian; Darias, Maria J.; Santigosa, E.; Desbruyeres, Elisabeth; Quazuguel, Patrick; Zambonino, Jose-luis; Cahu, Chantal; Mazurais, David. |
| It is known in vertebrates that endothelin-1 (ET-1) plays a key role ill morphogenesis whose expression level greatly influences the development of craniofacial malformations. In the Present study, the complete cDNA fragment encoding a precursor of endothelin-1, the preproendothelin-1 (PPET1), was cloned by RACE-PCR from European sea bass. The cDNA encoded a 199 amino acid polypeptide that was composed of the "mature" and "big" ET-1. Relative ET-1 expression levels were investigated in European sea bass larvae fed microparticulate diets containing the standard amount (0.08 g retinol/kg diet: group N) or all excess of retinoic acid which induces skeletal malformations (0.5 g retinol/kg diet: group RA). Real-time reverse transcriptor polymerase chain... |
| Tipo: Text |
Palavras-chave: European sea bass; Retinoic acid; Morphogenesis; Gene expression; Endothelin 1. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6172.pdf |
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| Heerah, Karine; Woillez, Mathieu; Fablet, Ronan; Garren, Francois; Martin, Stephane; De Pontual, Helene. |
| Background Movement pattern variations are reflective of behavioural switches, likely associated with different life history traits in response to the animals’ abiotic and biotic environment. Detecting these can provide rich information on the underlying processes driving animal movement patterns. However, extracting these signals from movement time series, requires tools that objectively extract, describe and quantify these behaviours. The inference of behavioural modes from movement patterns has been mainly addressed through hidden Markov models. Until now, the metrics implemented in these models did not allow to characterize cyclic patterns directly from the raw time series. To address these challenges, we developed an approach to i) extract new metrics... |
| Tipo: Text |
Palavras-chave: Fourier transform; Non negative matrix factorization; Classification; Animal behaviour; European sea bass; Movement ecology; Diurnal and tidal cycles; Biologging; Data storage tags. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00402/51400/51974.pdf |
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| Person, Jeannine; Skalli, Ali; Dulau, Barbara; Le Bayon, Nicolas; Le Delliou, Herve; Robin, Jean. |
| Triplicate groups of European sea bass juveniles (60 g) were fed for 84 days two experimental diets containing either vegetable or marine oil (0.4 and 2.2% n-3 highly unsaturated fatty acid [n-3 HUFA] dry matter in LD and HD, respectively) and held at 22 or 29 degreesC (LD-22, LD-29, HD-22 and HD-29 groups). Significant differences in mass gain between the two diets and temperatures were, observed from day 28 onwards, and on day 84, weight was 18% higher in the HD-29 group than in the LD-22 group (the highest and lowest values. respectively). Over the 84-day period-SGR was significantly affected both by temperatures and diets (P=6x10(-4) and 2x10(-4) respectively), averaging 1.01 and 1.07 in the HD-22 and HD-29 groups compared to 0.92 and 1.0 in the LD-22... |
| Tipo: Text |
Palavras-chave: Oxygen consumption; Fatty acid composition; Growth; Temperature; N 3 HUFA; European sea bass. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-502.pdf |
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| Cadiz, Laura; Servili, Arianna; Quazuguel, Patrick; Madec, Lauriane; Zambonino, Jose-luis; Mazurais, David. |
| European sea bass (Dicentrarchus labrax) inhabits coastal waters and may be exposed to hypoxia at different life stages, requiring physiological and behavioral adaptation. In the present study, we attempted to determine whether regulation of hemoglobin (Hb) gene expression plays a role in the physiological response to chronic moderate hypoxia in whole larvae and hematopoietic tissues (head kidney and spleen) of juveniles. We also tested the hypothesis that hypoxia exposure at the larval stage could induce a long-term effect on the regulation of Hb gene expression. For this purpose, D. labrax were exposed to a non-lethal hypoxic condition (40% air saturation) at the larval stage from 28 to 50 days post-hatching (dph) and/or at the juvenile stage from 196 to... |
| Tipo: Text |
Palavras-chave: Hypoxia; Hemoglobin; Early exposure; European sea bass. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00399/51039/51831.pdf |
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| Li, Xian; Blancheton, Jean-paul; Liu, Ying; Triplet, Sebastien; Michaud, Luigi. |
| The direct impact of oxidation–reduction potential (ORP) on fish welfare and water quality in marine recirculating aquaculture systems (RAS) is poorly documented. In this study, the effects of the fish size (S1, S2, S3) and ORP level (normal, four successive levels) on the performance of European sea bass (Dicentrarchus labrax) were investigated. Three size fish were distributed into two RAS (RAS and RAS O3). Ozone was injected into RAS O3 to increase the ORP level. The ORP was stabilized to four successive levels: 260–300, 300–320, 320–350, and 300–320 mV in fish tanks during four periods (P1–4). At the last day of each period, the hematological parameters, plasma protein and mortality of sea bass were analyzed. Two-way ANOVA revealed that several... |
| Tipo: Text |
Palavras-chave: ORP; Performance; European sea bass; RAS; Ozone. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00171/28201/26502.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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| Bado Nilles, Anne. |
| The effects of PAHs, considered among the most toxic by the United States Environmental Protection Agency, were tested in vitro and in vivo on two commercial species of the Pertuis-Charentais (Charente-Maritime, France): sea bass, Dicentrarchus labrax, and the Pacific oyster, Crassostrea gigas. This study was carried out as part of the European project EROCIPS with the aim of finding new immunological biomarkers caused by occasional pollution by hydrocarbons. During in vitro experimentation, pollutants and immunological biomarkers were choosen. Thereafter, the in vitro exposures to the soluble fraction of Erika's heavy fuel oil and its fluxant, light cycle oil, began. These exposures enable the validation of the experimental system used, with, in... |
| Tipo: Text |
Palavras-chave: Biliary metabolites; Bioaccumulation; Toxicity; Immune défense; European sea bass; Pacific oyster; Métabolites biliaires; Bioaccumulation; Toxicité; Capacités de défense; Hydrocarbure; Bar commun; Huître creuse. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/these-7401.pdf |
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| De Verdal, Hugues; Vandeputte, Marc; Pepey, Elodie; Vidal, Marie-odile; Ouedraogo, C; Canonne, Marc; D'Cotta, Helena; Baroiller, Jean Francois; Baras, E; Chatain, Beatrice. |
| The present study aimed to develop nondestructive methods to accurately follow the growth of fish larvae and post-larvae. European sea bass (Dicentrarchus labrax) aged 71-100 days post fertilization (dpf; 20-419 mg) and Nile tilapia (Oreochromis niloticus) aged 14 dpf (10-25 mg) were used as model species. Several measurements were performed on digital pictures of larvae to model body weight. Using body surface area, contour, length and depth, it was possible to estimate accurately the body weight of young European sea bass and Nile tilapia (r² of 0.98 and 0.95, respectively). |
| Tipo: Text |
Palavras-chave: Image analysis; Body weight; Surface area; European sea bass; Nile tilapia. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00205/31619/30045.pdf |
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| Le Boucher, Richard; Vandeputte, Marc; Dupont-nivet, M.; Quillet, E.; Ruelle, Francois; Vergnet, Alain; Kaushik, Sadasivam; Allamellou, J. M.; Medale, F.; Chatain, Beatrice. |
| Aquaculture of carnivorous species has strongly relied on fish meal and fish oil for feed formulation; however, greater replacement by terrestrial plant-based products is occurring now. This rapid change in dietary environment has been a major revolution and has to be taken into consideration in breeding programs. The present study analyzes potential consequences of this nutritional tendency for selective breeding by estimating genetic parameters of BW and growth rates estimated by the thermal growth coefficient (TGC) over different periods with extremely different diets. European sea bass (Dicentrarchus labrax L.) from a factorial cross (1,526 fish) between 25 sires and 9 dams were used to estimate heritabilities and genotype by diet interaction. Starting... |
| Tipo: Text |
Palavras-chave: European sea bass; Genetic correlation; Genotype by diet interaction; Genotype by environment interaction; Plant-based diet. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00146/25711/26299.pdf |
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| Pérez-pascual, David; Estellé, Jordi; Dutto, Gilbert; Rodde, Charles; Bernardet, Jean-françois; Marchand, Yann; Duchaud, Eric; Przybyla, Cyrille; Ghigo, Jean-marc. |
| Innovative fish diets made of terrestrial plants supplemented with sustainable protein sources free of fish-derived proteins could contribute to reducing the environmental impact of the farmed fish industry. However, such alternative diets may influence fish gut microbial community, health, and, ultimately, growth performance. Here, we developed five fish feed formulas composed of terrestrial plant-based nutrients, in which fish-derived proteins were substituted with sustainable protein sources, including insect larvae, cyanobacteria, yeast, or recycled processed poultry protein. We then analyzed the growth performance of European sea bass (Dicentrarchus labrax L.) and the evolution of gut microbiota of fish fed the five formulations. We showed that... |
| Tipo: Text |
Palavras-chave: European sea bass; Fish gut microbiota; Bacteria. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00646/75830/76816.pdf |
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| Schiavone, R; Zilli, L; Vilella, S; Fauvel, Christian. |
| The aims of the present study were (a) to compare sperm quality (percentage of motile spermatozoa, motility duration, density and fertility after cryopreservation) between precocious and normally maturing male European sea bass Dicentrarchus labrax, (b) to examine the potential of human chorionic gonadotropin (hCG) to increase spermiation in precocious males and (c) to examine the potential of hCG to induce spermatogenesis and spermiation in non-precocious 1-year-old males. One hundred precocious and 100 non-precocious fish were each randomly divided in two groups each: control (precocious saline-treated and non precocious saline-treated) and treated (precocious hCG-treated and non precocious hCG-treated). Treated groups were administered weekly with 1000... |
| Tipo: Text |
Palavras-chave: Dicentrarchus labrax; HCG; European sea bass; Spermiation; Spermatogenesis. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1815.pdf |
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| Skalli, Ali; Robin, Jean; Le Bayon, Nicolas; Le Delliou, Herve; Person, Jeannine. |
| The effects of essential fatty acid deficiency and temperature on the fatty acid profiles of polar lipids (PL) and neutral lipids (NL) from various tissues (muscle, liver, gills, eyes and brain) of European sea bass juveniles were compared in a two factorial design. Fish (60 g) were held for 84 days at 22 or 29 C (upper limit for growth) and fed either at a lower or a higher level than n-3 HUFA minimal requirement for growth (0.4% and 2.2% n-3 HUFA dry matter for diets LD and HD, respectively). Essential fatty acid deficiency had a major influence on fatty acids in NL fraction of all tissues, a more moderate influence on PL of muscle, liver and gills, while a low and very low diet influence was observed on eyes and brain PL fatty acid content,... |
| Tipo: Text |
Palavras-chave: Tissue fatty acid composition; Temperature; N 3 HUFA; European sea bass. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1688.pdf |
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| Grima, Laure; Chatain, Beatrice; Ruelle, Francois; Vergnet, Alain; Launay, Amandine; Mambrini, Muriel; Vandeputte, Marc. |
| Selective breeding to improve residual feed intake (RFI) in sea bass (Dicentrarchus labrax) is a major goal that would optimize economic gain while minimizing the environmental impact of production. Due to the difficulty in accurately measuring individual feed intake, no selective breeding program has yet been started. In a previous study, we identified a criterion phenotypically related to RFI variations: the loss of weight during feed deprivation, FD. Moreover, an additional composite criterion (CC) integrating both FD and weight gain during subsequent re-feeding (RF) was closely related to RFI, even though the relationship was only close to significance (P=0.06). The aim of the present study was to estimate the heritability of these two traits, in order... |
| Tipo: Text |
Palavras-chave: European sea bass; Dicentrarchus labrax; Feed efficiency; Heritability; Genetic parameters; Residual feed intake; Feed deprivation; Compensatory growth; Selective breeding. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00004/11529/8213.pdf |
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| Registros recuperados: 31 | |
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