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	Provedor de dados ArchiMer (4) Autor Michaud, Luigi (4) Blancheton, Jean-paul (3) Triplet, Sebastien (2) Bruni, V (1) Interdonato, Filippo (1) Li, Xian (1) Liu, Ying (1) Lo Giudice, Angelina (1) Piedrahita, Raul (1) Ying, Luo (1) Mais... Palavra-chave Recirculating aquaculture system (2) Aquaculture en circuit recirculé (1) Bioactivateur (1) Biofilters (1) Biological filter (1) C/N ratio (1) Caractérisation moléculaire (1) Carbone organique particulaire (1) Conceptual model (1) European sea bass (1) Filtre biologique (1) Heterotrophic bacteria (1) Microbial community structure (1) Microbial ecology (1) Modèle conceptuel (1) Molecular characterization (1) Nitrification (1) ORP (1) Ozone (1) Particulate organic matter (1) Mais... Tipo do documento Text (4) Ano 2014 (2) 2007 (1) 2006 (1) País France (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Microbial communities of recirculating aquaculture facilities: interaction between heterotrophic and autotrophic bacteria and the system itself ArchiMer Michaud, Luigi. Recirculating Aquaculture Systems (RAS) may be considered an alternative to pond aquaculture technology (by consuming lower amounts of water producing similar yields of crop) or can be integrated in a sort of "production chain" with net pen systems. The interest in RAS is due to their intrinsic advantages like the reduction of land and water requirements, the high degree of environmental control allowing year-round growth at optimum rates and the possibility to produce in close proximity to markets. Moreover, the high level of control improves risk management linked with bacterial and parasitic infections and predator pests. Finally, waste production (both particulate and soluble) can be controlled and minimized contributing to make these systems... Tipo: Text Palavras-chave: Conceptual model; Molecular characterization; Biological filter; Microbial ecology; Recirculating Aquaculture System; Modèle conceptuel; Bioactivateur; Caractérisation moléculaire; Carbone organique particulaire; Filtre biologique; Écologie microbienne; Aquaculture en circuit recirculé. Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-2682.pdf Effect of oxidation–reduction potential on performance of European sea bass (Dicentrarchus labrax) in recirculating aquaculture systems ArchiMer 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 Effect of particulate organic carbon on heterotrophic bacterial populations and nitrification efficiency in biological filters ArchiMer Michaud, Luigi; Blancheton, Jean-paul; Bruni, V; Piedrahita, Raul. Competition between heterotrophic and nitrifying bacteria is of major practical importance in aquaculture biofilter design and operation. This competition must be understood to minimize the negative impact of heterotrophic bacteria on an aquaculture system. On the other hand, the heterotrophic population is suspected of having a positive effect against pathogenic bacteria. Little information is available on the bacterial communities present within aquaculture systems, except for nitrifying bacteria, but a combination of traditional aquacultural engineering research methods and novel microbiological techniques offers new opportunities for the study of these communities. The heterotrophic bacterial population activity and the nitrification efficiency of a... Tipo: Text Palavras-chave: Recirculating aquaculture system; Particulate organic matter; Heterotrophic bacteria; Nitrification. Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1553.pdf C/N ratio-induced structural shift of bacterial communities inside lab-scale aquaculture biofilters ArchiMer Michaud, Luigi; Lo Giudice, Angelina; Interdonato, Filippo; Triplet, Sebastien; Ying, Luo; Blancheton, Jean-paul. In Recirculating Aquaculture Systems (RAS) various chemical compounds (mainly nitrates and organic carbon) accumulate in the rearing water. These chemical substrata regulate the ecophysiology of the bacterial communities of the biofilter and have an impact on its nitrification efficiency and reliability. In the present study chemical and microbiological parameters in static mineral bed (SBB) and moving plastic bed (MBB) biological filters were monitored at increasing C/N ratios ranging from 0 (pure nitrification) to 4 (combined nitrification and organic carbon removal), with the aim to investigate the shift of the bacterial community structure and major taxa relative abundances. Results suggest that the MBB are less subjected to the nitrification... Tipo: Text Palavras-chave: Recirculating aquaculture system; Biofilters; C/N ratio; Microbial community structure. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00167/27846/26070.pdf Registros recuperados: 4 Primeira ... 1 ... Última

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