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Influence of dietary bulk agents (silica, cellulose and a natural zeolite) on protein digestibility, growth, feed intake and feed transit time in European seabass (Dicentrarchus labrax) juveniles ArchiMer
Dias, Jorge; Huelvan, Christine; Dinis, Maria; Metailler, Robert.
The incorporation of various bulk agents by substitution of an equivalent amount of the basal mixture was studied in terms of protein digestibility, growth performance and body composition in European seabass (Dicentrarchus labrax) juveniles. During the growth trial, triplicate groups of 40 seabass (mean initial weight: 7.0 g) were grown in seawater (salinity: 35; temperature: 18 degrees C) over 60 days. Fish were hand-fed, three times a day, one of seven experimental diets. Bulk agents tested at 10 or 20 % level of incorporation were silica, cellulose and a natural zeolite (chabamin). Feeding rates were adjusted in proportion to the percent dilution of the control diet without bulk incorporation. The incorporation of the bulk agents, at a 10 and 20 %...
Tipo: Text Palavras-chave: Dicentrarchus labrax Digestibilité Agents liants Nutrition des poissons; Dicentrarchus labrax Digestibility Inert fillers Fish nutrition.
Ano: 1998 URL: https://archimer.ifremer.fr/doc/1998/publication-870.pdf
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An early-life hypoxia event has a long-term impact on protein digestion and growth in European sea bass juvenile. ArchiMer
Zambonino, Jose-luis; Mazurais, David; Dubuc, Alexia; Queau, Pierre; Vanderplancke, Gwenaelle; Servili, Arianna; Cahu, Chantal; Le Bayon, Nicolas; Huelvan, Christine; Claireaux, Guy.
Ocean warming, eutrophication and consequent decrease in oxygen lead to smaller average fish size. Although such responses are well-known in an evolutionary context, involving multiple generations, it appears to be incompatible with current rapid environmental change. Rather, phenotypic plasticity could provide a means for marine fish to cope with rapid environmental changes. However, little is known about the mechanisms underlying plastic responses to environmental conditions that favour small phenotypes. Our aim was to investigate how and why European sea bass that had experienced a short episode of moderate hypoxia during their larval stage subsequently exhibited a growth depression at the juvenile stage compared to the control group. We examined...
Tipo: Text Palavras-chave: Climate change; Digestive enzymes; Dicentrarchus labrax; Growth; Hypoxia; Respirometry.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00373/48407/48635.pdf
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The development of contemporary European sea bass larvae (Dicentrarchus labrax) is not affected by projected ocean acidification scenarios ArchiMer
Crespel, Amelie; Zambonino-infante, Jose-luis; Mazurais, David; Koumoundouros, George; Fragkoulis, Stefanos; Quazuguel, Patrick; Huelvan, Christine; Madec, Lauriane; Servili, Arianna; Claireaux, Guy.
Ocean acidification is a recognized consequence of anthropogenic carbon dioxide (CO2) emission in the atmosphere. Despite its threat to marine ecosystems, little is presently known about the capacity for fish to respond efficiently to this acidification. In adult fish, acid-base regulatory capacities are believed to be relatively competent to respond to hypercapnic conditions. However, fish in early life stage could be particularly sensitive to environmental factors as organs and important physiological functions become progressively operational during this period. In this study, the response of European sea bass (Dicentrarchus labrax) larvae reared under three ocean acidification scenarios, i.e., control (present condition, P-CO2 = 590 mu atm, pH total =...
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Ano: 2017 URL: https://archimer.ifremer.fr/doc/00393/50448/51181.pdf
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Probiotic treatment of live food organisms for Atlantic bluefin tuna larvae: microbiological & immunological criteria ArchiMer
Coves, Denis; De Vogue, Benoist; Desbruyeres, Elisabeth; Dhormes, Benoit; Fievet, Julie; Huelvan, Christine; Lallement, Stephane; Le Gall, Marie-madeleine; Ruelle, Francois; Vidal, Marie-odile; Castex, M.; Mazurais, David; Cahu, Chantal; Gatesoupe, François-joel.
Tipo: Text
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00051/16189/13702.pdf
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Evaluation of the impact of polyethylene microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae ArchiMer
Mazurais, David; Ernande, Bruno; Quazuguel, Patrick; Severe, Armelle; Huelvan, Christine; Madec, Lauriane; Mouchel, Olivier; Soudant, P.; Robbens, J.; Huvet, Arnaud; Zambonino-infante, J..
Microplastics are present in marine habitats worldwide and may be ingested by low trophic organisms such as fish larvae, with uncertain physiological consequences. The present study aims at assessing the impact of polyethylene (PE 10-45µM) microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae. Fish were fed an inert diet including 0, 104 and 105 fluorescent microbeads per gram from 7 until 43 days post-hatching (dph). Microbeads were detected in the gastrointestinal tract in all fish fed diet incorporating PE. Our data revealed an efficient elimination of PE beads from the gut since no fluorescent was observed in the larvae after 48h depuration. While the mortality rate increased significantly with the amount of microbeads scored per...
Tipo: Text Palavras-chave: Microplastic; Fish; Larvae; Ingestion; Survival.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00279/39057/37621.pdf
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Exposure to chronic moderate hypoxia impacts physiological and developmental traits of European sea bass (Dicentrarchus labrax) larvae ArchiMer
Vanderplancke, Gwenaelle; Claireaux, Guy; Quazuguel, Patrick; Huelvan, Christine; Corporeau, Charlotte; Mazurais, David; Zambonino-infante, Jose-luis.
Since European sea bass (Dicentrarchus labrax) larvae occurred in coastal and estuarine waters at early life stages, they are likely to be exposed to reduced dissolved oxygen waters at a sensitive developmental stage. However, the effects of hypoxia at larval stage, which depend in part on fish species, remain very poorly documented in European sea bass. In the present study, the impacts of an experimental exposure to a chronic moderate hypoxia (40 % air saturation) between 30 and 38 days post-hatching on the physiological and developmental traits of European sea bass larvae were assessed. This study was based on the investigation of survival and growth rates, parameters related to energy metabolism [Citrate Synthase (CS) and Cytochrome-c Oxidase (COX)...
Tipo: Text Palavras-chave: Hypoxia; Fish larvae; Energy metabolism; Maturation.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00253/36433/35005.pdf
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Hypoxia tolerance of common sole juveniles depends on dietary regime and temperature at the larval stage: evidence for environmental conditioning ArchiMer
Zambonino, Jose-luis; Claireaux, Guy; Ernande, Bruno; Quazuguel, Patrick; Severe, Armelle; Huelvan, Christine; Mazurais, David.
An individual's environmental history may have delayed effects on its physiology and life history at later stages in life because of irreversible plastic responses of early ontogenesis to environmental conditions. We chose a marine fish, the common sole, as a model species to study these effects, because it inhabits shallow marine areas highly exposed to environmental changes. We tested whether temperature and trophic conditions experienced during the larval stage had delayed effects on life-history traits and resistance to hypoxia at the juvenile stage. We thus examined the combined effect of global warming and hypoxia in coastal waters, which are potential stressors to many estuarine and coastal marine fishes. Elevated temperature and better trophic...
Tipo: Text Palavras-chave: Fish; Environmental programming; Climate change; Hypoxia; Nutrition.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00127/23858/21810.pdf
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Gene expression pattern of digestive and antioxidant enzymes during the larval development of reared Atlantic bluefin tuna (ABFT), Thunnus thynnus L. ArchiMer
Mazurais, David; Coves, Denis; Papandroulakis, Nikos; Ortega, Aurelio; Desbruyeres, Elisabeth; Huelvan, Christine; Le Gall, Marie-madeleine; De La Gandara, Fernando; Cahu, Chantal.
The aim of this study was to determine whether mortality observed during the larval development of reared bluefin tuna (Thunnus thynnus) could be related to improper expression profiles of key genes involved in digestive or antioxidant response capabilities. Tuna larvae were sampled at hatching, 2, 5, 10, 15 and 20 dph (days post hatching) for the relative quantification of transcripts encoded by genes involved in digestive [trypsinogen 1 (TRYP1), alpha-amylase (AMY), aminopeptidase N (ANPEP)] and antioxidant [catalase (CAT)] functions. The levels of expression of ANPEP related to the development and maturation of intestinal function increased from 5 to 20 dph. Furthermore, AMY and TRYP1 genes, which are pancreatic enzymes implicated in carbohydrate and...
Tipo: Text Palavras-chave: Tuna; Gene; Expression; Development; Digestion; Antioxidant.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00171/28264/26521.pdf
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Impact de la pisciculture marine intensive sur l'environnement : contribution à la modélisation de l'utilisation de l'azote par le turbot ArchiMer
Dosdat, Antoine; Tetu, N.; Metailler, Robert; Huelvan, Christine; Desbruyeres, Elisabeth; Le Delliou, Herve.
Ce document présente une étude visant à déterminer le flux de nutriments produits par un élevage de turbots en conditions contrôlées. Les paramètres d'excrétion et de production de fèces ont été abordés en fonction des quantités d'aliment ingéré, en même temps que l'excrétion d'azote corporel. L'étude montre que le turbot est un animal plus économe que la truite arc-en-ciel pour ce qui concerne l'utilisation des protéines. Ceci est explicable par des particularités physiologiques. L'utilisation de modè les "salmonidés" pour l'estimation de l'impact environnemental des piscicultures marines est donc déconseillée.
Tipo: Text Palavras-chave: Pisciculture marine; Environnement; Turbots; Métabolisme.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00429/54101/55431.pdf
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The highly variable microbiota associated to intestinal mucosa correlates with growth and hypoxia resistance of sea bass, Dicentrarchus labrax, submitted to different nutritional histories ArchiMer
Gatesoupe, Francois-joel; Huelvan, Christine; Le Bayon, Nicolas; Le Delliou, Herve; Madec, Lauriane; Mouchel, Olivier; Quazuguel, Patrick; Mazurais, David; Zambonino-infante, Jose-luis.
Background The better understanding of how intestinal microbiota interacts with fish health is one of the key to sustainable aquaculture development. The present experiment aimed at correlating active microbiota associated to intestinal mucosa with Specific Growth Rate (SGR) and Hypoxia Resistance Time (HRT) in European sea bass individuals submitted to different nutritional histories: the fish were fed either standard or unbalanced diets at first feeding, and then mixed before repeating the dietary challenge in a common garden approach at the juvenile stage. Results A diet deficient in essential fatty acids (LH) lowered both SGR and HRT in sea bass, especially when the deficiency was already applied at first feeding. A protein-deficient diet with high...
Tipo: Text Palavras-chave: Host-microbe interaction; 16S rRNA; Pyrosequencing; Autochthonous bacteria; Alternative feed ingredients; Physiological status.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00356/46719/46590.pdf
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The effects of dietary marine protein hydrolysates on the development of sea bass larvae, Dicentrarchus labrax, and associated microbiota ArchiMer
Delcroix, Jeremy; Gatesoupe, F.j.; Desbruyeres, Elisabeth; Huelvan, Christine; Le Delliou, Herve; Le Gall, Marie-madeleine; Quazuguel, Patrick; Mazurais, David; Zambonino-infante, Jose-luis.
Protein hydrolysate is an essential component of dry starter diets for fish larvae, as promoting healthy development. Peptides are also suitable substrates for many intestinal microbes. Five experimental diets were compared to a control diet (CONT) supplemented with a commercial fish protein hydrolysate. Each diet contained one marine protein hydrolysate, which differed by the proportion of di- and tri-peptides, and by raw materials. Two diets (HYD4 and HYD5) stimulated larval growth compared with CONT. Two other diets (HYD1 and HYD2) yielded inferior growth. HYD1 was detrimental for survival, which was associated with an up-regulation of genes involved in inflammation and antioxidative responses, while the gene coding for osteocalcin was down-regulated in...
Tipo: Text Palavras-chave: Compound diets; Denaturing gradient gel electrophoresis; Digestive enzymes; Gene expression; Gut maturation; Peptides.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00197/30865/29268.pdf
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Comparison of brown trout (Salmo trutta) reared in fresh water and sea water to freshwater rainbow trout (Oncorhynchus mykiss): II. Phosphorus balance ArchiMer
Dosdat, Antoine; Metailler, Robert; Desbruyeres, Elisabeth; Huelvan, Christine.
Brown trout and rainbow trout (average weight 100 g) were reared in fresh water at 12 degrees C under the same conditions before transferring brown trout to sea water, in order to compare phosphorus utilisation in both species. Apparent phosphorus availability, orthophosphate excretion and phosphorus accretion in the fish were directly determined. Thus, actual phosphorus mass balance was built. Rainbow trout raised in fresh water had a higher phosphorus retention coefficient (maximum 50 %) than brown trout reared in fresh water (maximum 45 %). Transferring brown trout to sea water induced a reduction in phosphorus retention (maximum 39 %), Orthophosphate excretion, ranging 7-20 mg phosphorus per kg wet weight per day, represented 10-20 % of ingested...
Tipo: Text Palavras-chave: Oncorhynchus mykiss; Salmo trutta; Excrétion; Digestibilité; Phosphore; Oncorhynchus mykiss; Salmo trutta; Excretion; Digestibility; Phosphorus intake.
Ano: 1998 URL: https://archimer.ifremer.fr/doc/1998/publication-876.pdf
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Genomic organization and spatio-temporal expression of the hemoglobin genes in European sea bass (Dicentrarchus labrax) ArchiMer
Cadiz, L.; Desmarais, E.; Servili, Arianna; Quazuguel, Patrick; Madec, Lauriane; Huelvan, Christine; Andersen, O.; Zambonino-infante, Jose-luis; Mazurais, David.
Hemoglobins (Hb) play a critical role in satisfying the oxygen demand of vertebrate aerobic metabolism. The present study reports the characterization of the European sea bass (Dicentrarchus labrax) Hb genes, including genomic organization, phylogeny, and spatio-temporal gene expression. These Hb genes are divided into two unlinked clusters, the “MN” cluster containing eleven genes (five Hbα genes named MN-Hbα1-5 and six Hbβ genes named MN-Hbβ1–6) and the “LA” cluster consisting of three genes (two Hbα genes named LA-Hbα1-2 and one Hbβ gene named LA-Hbβ1). Comparative analysis of Hb amino acid sequences indicates that most of the important amino acid residues involved in hemoglobin-oxygen binding, particularly in the Bohr and Root effects, are generally...
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Ano: 2017 URL: https://archimer.ifremer.fr/doc/00382/49349/49787.pdf
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The effects of dietary carbohydrate sources and forms on metabolic response and intestinal microbiota in sea bass juveniles, Dicentrarchus labrax ArchiMer
Gatesoupe, Joel; Huelvan, Christine; Le Bayon, Nicolas; Severe, Armelle; Aasen, Inga Marie; Degnes, Kristin F.; Mazurais, David; Panserat, Stephane; Zambonino, Jose-luis; Kaushik, Sadasivam.
The aim of this work was to investigate the catabolic process of three kinds of dietary carbohydrates in the gut of sea bass juveniles, with the possible contribution of the intestinal microbiota to the nutrition of the host, and the subsequent effects on intermediary metabolism. A first diet contained waxy maize (99% amylopectin), a highly digestible form of starch. A second diet was less quickly digestible due to its high amylose content of resistant starch. Two other diets contained fibre instead of starch, either only cellulose as control, or also other non-starch polysaccharides brought by lupin meal. The effect of the diets on the host confirmed previous results, with the stimulation of glucose storage in the liver in sea bass fed the starchy diets,...
Tipo: Text Palavras-chave: Digestive enzymes; Glucose metabolism; Intestinal microbiota; Viscerosomatic index; Gene expression; Metabolite analyses; Vegetable feedstuffs.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00166/27763/25944.pdf
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Comparison of brown trout (Salmo trutta) reared in fresh water and sea water to freshwater rainbow trout (Oncorhynchus mykiss) .1. Growth and nitrogen balance ArchiMer
Dosdat, Antoine; Metailler, Robert; Desbruyeres, Elisabeth; Huelvan, Christine.
Brown trout and rainbow trout (average weight 100 g) were reared in fresh water at 12 degrees C under the same conditions before transfer of brown trout to sea water, in order to compare nitrogen utilisation in the two species. Apparent protein digestibility (ADC), nitrogen (ammonia and urea) excretion, protein productive value (PPV) and actual observed nitro en mass balance were determined. Rainbow trout raised in fresh water had a higher growth rate (1.1 vs 0.8%. d(-1)), better food conversion ratio (0.7 vs 1.0), better ADC (91 vs 85%) and PPV (45 vs 35%) and lower ammonia excretion rates than brown trout reared in fresh water. Transferring brown trout to sea water induced lower PPV (30%) and ammonia and urea excretion. Salinity did not modify metabolic...
Tipo: Text Palavras-chave: Truite commune; Truite arc-en-ciel; Excrétion; Ammoniaque; Urée; Digestibilité; Croissance; Rétention protéique; Rainbow trout; Brown trout; Excretion; Ammonia; Urea; Digestibility; Growth; Protein productive value.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00188/29885/28342.pdf
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Dietary vitamin D-3 affects digestive system ontogenesis and ossification in European sea bass (Dicentrachus labrax, Linnaeus, 1758) ArchiMer
Darias, Maria J.; Mazurais, David; Koumoundouros, Giorgos; Glynatsi, Nomiki; Christodoulopoulou, Stavroula; Huelvan, Christine; Desbruyeres, Elisabeth; Le Gall, Marie-madeleine; Quazuguel, Patrick; Cahu, Chantal; Zambonino-infante, Jose L..
The influence of dietary vitamin D-3 (VD3) on survival, growth and morphogenesis during the larval development of European sea bass (Dicentrarchus labrax) was evaluated until 45 days post hatching. Diets contained 4% of the standard vitamin mix (VM) recommended by the National Research Council (NRC) and incorporated 0, 19.2, 38.4, or 140 IU of VD3 per gram of diet to give VD-0, VD-1, VD-2 and VD-3 dietary treatments, respectively. The present study revealed for the first time an impact of dietary VD3 on the sea bass digestive system ontogenesis that consequently conditioned the ossification process and morphogenesis. All dietary VD3 levels were in the "adequate range" based on larval survival. Nevertheless, growth, intestinal maturation and ossification at...
Tipo: Text Palavras-chave: Fish larvae; Ossification; Malformations; Vitamin D; Digestive system; Gene expression.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00000/11147/7849.pdf
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Comparison of growth, digestive system maturation and skeletal development in sea bass larvae reared in an intensive or a mesocosm system ArchiMer
Zouiten, Dora; Ben Khemis, Ines; Masmoudi, Ahmed Slaheddin; Huelvan, Christine; Cahu, Chantal.
The quality of development in intensive or mesocosm hatchery-reared Dicentrarchus labrax larvae was investigated using physiological indicators assessing ontogeny. Larvae were reared in intensive (120 L tanks) and in mesocosm systems (20 m(3) enclosures) with the same feeding sequence, excluding the wild zooplankton naturally available in mesocosms. Faster growth was recorded since early development [16 day after hatching (DAH)] in the mesocosm. Maturation of the digestive system also occurred earlier as indicated by the higher amylase secretion ratios, the intestinal maturation index (alkaline phosphatase/leucine-alanine peptidase and aminopeptidase-N/leucine-alanine peptidase ratios) and the more developed intestinal epithelium at 23 DAH. Nevertheless,...
Tipo: Text Palavras-chave: Fish larvae; Hatchery; Mesocosm; Ontogenesis; Enzyme; Skeletogenesis.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00051/16225/14064.pdf
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