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| Registros recuperados: 45.096 | |
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| 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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| Person-le Ruyet, Jeannine. |
| Four species of planktonic Calanoid Copepods, Acartia clausi, Centropages typicus, C. hamatus and Temora longicornis, were cultured during one year, at 20°, with the green algae Tetraselmis suecica. The generation time and reproductive rate are investigated, the best results are obtaincd with C. hamatus and A. clausi : 50 and 60 adults per female, and per cycle (20 and 21 days). [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1975 |
URL: http://archimer.ifremer.fr/doc/1975/publication-5448.pdf |
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| Garnier, Josette; Le Gendre, Romain; Passy, Paul; Paris, Francois; Billen, Gilles; Callens, Julie; Cugier, Philippe; Tronquart, Olivier; Romero, Estela; Riou, Philippe. |
| Tipo: Text |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00092/20336/17982.pdf |
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| Mapstone, Gillian M.; Corbari, Laure; Menot, Lenaick. |
| Rhodaliids are a semi-benthic family of 14 physonect siphonophore species found in all oceans, except the Mediterranean and Arctic. They inhabit species-specific depth ranges in isolated locations and records are mostly sparse. Here, the first ever observations of rhodaliids from the Mid-Atlantic Ridge are given, from three images of two putative species. They come from depths of 3482 and 3667–3670 metres, on the Mid-Atlantic Ridge (MAR) at 23°N and 26°N, near two hydrothermal vents. Rhodaliids are very delicate animals and extremely hard to sample, particularly from such great depths, and the only comparable deep-living species so far described is the Galapagos Dandelion (Thermopalia taraxaca) from 2480–2938 metres on the Galapagos Rift and East Pacific... |
| Tipo: Text |
Palavras-chave: Deep-sea; Mid-Atlantic Ridge; Rhodaliid; Siphonophore. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00361/47207/51395.pdf |
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| Couty, Angélique. |
| The Japan oyster: Crassostrea gigas have been imported on the french coasts in the seventies and from this time it adapted to this environment. Since, it became the main oyster producted in France. But ,since twenty years C. gigas presents an anormaly and important mortality eah year in the period of summer. The syndrome known as summer mortality, appears particulary in mid-june. This mortality can affected 50% of the culture. Many studies have brought elements in the comprehension of the condition of apparition of this mortalilities. Temperature seems to play an important rule with reproductive maturation. But also, the deep ofwater could be associated to this mass mortality. The study began in march 2003 and characterize more precisely the summer... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Mortalité estivale; Croissance; Maturation; Environnement; Crassostrea gigas; Summer mortality; Growth; Maturation; Environment. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00306/41767/40980.pdf |
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| Derolez, Valerie; Soudant, Dominique; Malet, Nathalie; Chiantella, Claude; Richard, Marion; Abadie, Eric; Aliaume, Catherine; Bec, Beatrice. |
| Mediterranean costal lagoons have been exposed to anthropic eutrophication for decades. Thau lagoon is one of the largest among them and provides many ecosystem services including shellfish farming. Considerable efforts were made between the 1970s and the late 2000s to improve the wastewater treatment systems in the lagoon watershed. A decrease in nutrient inputs to Thau lagoon was subsequently observed, evidence for the start of a recovery process in Thau lagoon, following oligotrophication. This decrease has significant consequences for ecosystem communities, above all primary producers. In our study, we characterised and quantified long-term changes by analysing long monitoring time-series (1998-2016) of phytoplankton biomass, abundance and composition... |
| Tipo: Text |
Palavras-chave: Eutrophication; Oligotrophication; Nutrients; Recovery; Phytoplankton community shift; Mediterranean coastal lagoon. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00629/74063/73514.pdf |
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| Pendant la période novembre 1991 - octobre 1992 la puissance de fonctionnement de la centrale a varié de 3 à 6 tranches de 900 MW, les débits d'eau de refroidissement des condenseurs ont varié de 160 à 240 m3/s. Le réchauffement moyen annuel mesuré dans le canal de rejet est 9.3 ° C. La chloration de 0.8 mg/l est appliquée au circuit de refroidissement quand la température au canal d'entrée est supérieure à 10°C. |
| Tipo: Text |
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| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00005/11605/8242.pdf |
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| Sanchez, Bv; Ray, Rd; Cartwright, De. |
| An empirical model has been derived for the semidiurnal principal lunar tide M2 in the Mediterranean Sea, excluding the Aegean Sea. The work is primarily an exercise in combining satellite altimeter data with tide-gauge data, through the use of specially constructed spatial basis functions. The tide-gauge data consist of M2 harmonic constants previously derived at 43 chosen coastal locations. The altimeter data consist of approximately two years of Geosat data in the form of collinear differences of sea-surface heights, corrected for orbit error by adjusting long sequences of global data. The tide is expressed as an expansion in Proudman functions - numerically constructed, orthogonal eigenfunctions of the velocity potential. The most important mode is... |
| Tipo: Text |
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| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00100/21166/18785.pdf |
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| Les eaux souterraines du bassin versant du Kerharo présentent une stratification. La première tranche d'eau, d'épaisseur variable mais ne dépassant pas 40 m, est caractérisée par de fortes teneurs en nitrates et en oxygène dissous. Elle est séparée de la couche sousjacente par un front d'oxydo-réduction. Cette dernière contient très peu de nitrates mais présente des concentrations conséquentes en fer, manganèse, ammonium, sulfates, voire en l'hydrogène sulfuré (H2S), indicateur de conditions fortement réductrices (Rapport d'avancement "Bassins versants et transmission des pollutions au littoral", 1996). La mise en évidence de bactéries dénitrifiantes lors d'un essai préliminaire suggère une dénitrification active dans ces eaux. Cette étude fait suite à ces... |
| Tipo: Text |
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| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00104/21497/19078.pdf |
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| Claude, Benoit. |
| Le CNEXO a publié demièrement les actes du Colloque international tenu au Centre Océanologique de Bretagne à Brest en novembre 1979 et consacré aux conséquences de la pollution provoquée par l'échouement du pétrolier «AMOCO-CADIZ» en mars 1978. Ce colloque organisé par le Ministère de l'Environnement et du Cadre de Vie et par le CNEXO faisait le point de la première phase du programme d'étude des effets sur la flore et la faune marines des déversements de pétrole dûs à cet accident survenu 20 mois auparavant, dans la nuit du 16 au 17 mars 1978. [OCR NON CONTRÔLE] |
| Tipo: Text |
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| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/publication-4771.pdf |
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| Deslous-paoli, Jean-marc; Zanette, Yvan; Heral, Maurice; Masse, Henri; Garnier, Jacqueline. |
| The breeding of Pacific oysters Crassostra gigas, in non tidal ponds, before commercialization, brings about an improvement of the shell and of the quantity and quality of the tissues. In fact, the Berthome's indice (1978) moves from 1.36 in June to 0.68 December, and the density of the shell increases in the same time from 1.79 to 1.98. On the other hand, the percentage of tissues in the oyster is 12.4% at the end of gametogenesis and more than 9% at the end of breeding. The dry tissues are composed of 10.3 of ash, 40.3% of proteins, 12.6% of lipids and 9% of carbohydrate. 95% of the carbohydrate are glycogen. The resulting energetic values are measured to 5.10 cal-mg super(-1) of dry tissues ash free. |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Tissues; Biochemical composition; Shells; Growth; Oyster culture. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/publication-1892.pdf |
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| Berthois, Léopold; Brenot, Roger; Ailloud, P. |
| Soundings in the west of the Iberian Peninsula aimed at extending the morphological identification of the continental slope all the way to the Cap Saint-Vincent (Portugal) started in 1956 from the Porcupine bank (west of Ireland).Works started during the cruises of the oceanographic research vessels of the Scientific and Technical Institute of Marine Fisheries: the "Président Théodore-Tissier" and the "Thalassa", as they were on their way to the Mediterranean Sea or other regions south of the Strait of Gibraltar.These first results were then completed during different research expeditions on fishing, off the Portuguese coast.This discontinuity in the operations, spread out over many years, resulted in all the navigation and soundings being conducted by... |
| Tipo: Text |
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| Ano: 1965 |
URL: http://archimer.ifremer.fr/doc/1965/publication-4003.pdf |
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| Thomas, Y.; Garen, Pierre; Courties, C.; Charpy, L.. |
| Spatial and temporal scales of variability in phyto- and bacterioplankton abundance were investigated in a deep atoll lagoon (Ahe, French Polynesia), Ahe Lagoon showed a classical phytoplankton composition, but its picophytoplankton (Prochlorococcus, Synechococcus and picoeukaryotes) concentrations are higher than the mean for Polynesian atoll lagoons. Phyto- and bacterioplankton descriptors were highly variable, with mean CVs of >20% in most cases: day night, day-to-day, vertical, lagoonal and seasonal. Phytoplankton biomass, which was estimated by in vivo fluorescence, was higher in the deep layer than in the upper layer. This pattern was detected on a day night scale, showing transitory vertical gradients, and through long-term events that were... |
| Tipo: Text |
Palavras-chave: Flow cytometry; Picophytoplankton; Nanophytoplankton; Bacterioplankton; Vertical distribution; Day-to-day dynamics; Large-scale heterogeneity; Deep atoll lagoon; French Polynesia. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00003/11425/7963.pdf |
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| Straub, M.; Tremblay, M. M.; Sigman, D. M.; Studer, A. S.; Ren, H.; Toggweiler, J. R.; Haug, G. H.. |
| Surface nitrate concentration is a potentially useful diagnostic in reconstructing the past circulation of high-latitude North Atlantic waters. Moreover, nutrient consumption in the North Atlantic surface impacts the atmospheric concentration of carbon dioxide. To reconstruct nutrient conditions in the subpolar North Atlantic region during the last ice age, a record of foraminifera-bound delta N-15 was measured in Neogloboquadrina pachyderma (sin.) from core V28-73 south of Iceland (57.2 degrees N, 20.9 degrees W). Foraminifera-bound delta N-15 is up to 2 parts per thousand lower during the last ice age than during the Holocene, suggesting as much as similar to 25% less complete nitrate consumption during the former. This is consistent with stronger light... |
| Tipo: Text |
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| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00262/37308/35721.pdf |
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| Gire, G. |
| La variété des produits conservés, la complexité de leur nature du point de vue chimique, l'action propre des ingrédients qui les accompagnent, rendent la question de la corrosion des boîtes de conserves extrêmement difficile. De nombreux spécialistes, particulièrement en Amérique, ont examiné de très près les différentes sortes de corrosion que présentent les boites de conserves et se sont surtout attachés à celles qui provoquent, à bref délai, la perforation des boîtes. Leur but était de pouvoir établir des spécifications quant aux fers-blancs utilisés à la fabrication des boîtes de conserves. Cet objectif particulier semble avoir par trop limité leurs observations au seul aspect du fer-blanc et, si les corrosions observées ont été méticuleusement... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1930 |
URL: http://archimer.ifremer.fr/doc/1930/publication-5872.pdf |
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| Claisse, Didier; Simon, Serge. |
| Depuis 1979 le Réseau National d'Observation de la qualité du milieu marin (RNO) pratique une surveillance trimestrielle des teneurs en contaminants métalliques et organiques dans les moules et les huîtres du littoral français. Cette communication résume les méthodes et les actions d'assurance de qualité utilisées. Les résultats sont présentés de manière synthétique et les points remarquables sont mis en évidence. Une tentative de relation est faite entre les concentrations dans la Seine faisant l'objet d'un suivi régulier et les résultats du 'Mussel-Watch' exposés précédemment. |
| Tipo: Text |
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| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00017/12780/9714.pdf |
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| Registros recuperados: 45.096 | |
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