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| Registros recuperados: 17 | |
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| Nikolic, Natacha; Chevalet, Claude. |
| Understanding and predicting population abundance is a major challenge confronting scientists. Several genetic models have been developed using microsatellite markers to estimate the present and ancestral effective population sizes. However, to get an overview on the evolution of population requires that past fluctuation of population size be traceable. To address the question, we developed a new model estimating the past changes of effective population size from microsatellite by resolving coalescence theory and using approximate likelihoods in a Monte Carlo Markov Chain approach. The efficiency of the model and its sensitivity to gene flow and to assumptions on the mutational process were checked using simulated data and analysis. The model was found... |
| Tipo: Text |
Palavras-chave: Atlantic salmon; Effective population size; Microsatellites; Past demography. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00194/30565/28986.pdf |
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| Zhang, Yangfan; Timmerhaus, Gerrit; Anttila, Katja; Mauduit, Florian; Jorgensen, Sven Martin; Kristensen, Torstein; Claireaux, Guy; Takle, Harald; Farrell, Anthony P.. |
| Commercially selective breeding of Atlantic salmon (Salmo salar) primarily for rapid growth may compromise cardiorespiratory robustness and its related phenotypes. Therefore, a suite of respiratory indices was used to evaluate aerobic capacity and hypoxia tolerance to test the hypothesis that exercise training can improve the athletic robustness in both domesticated and wild strains of Atlantic salmon, but with the domesticated strain having a less cardiorespiratory plasticity and a lower athletic robustness than the wild strain. We also tested a second hypothesis that a constant acceleration screening protocol should segregate fish according to athletic robustness based on their swimming ability. These hypotheses were tested with parr from Bolaks... |
| Tipo: Text |
Palavras-chave: Athletic robustness; Atlantic salmon; Domestication; Exercise training; Hypoxia tolerance; Respiratory performance. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00334/44518/44214.pdf |
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| Mace, Sabrina; Joffraud, Jean-jacques; Cardinal, Mireille; Malcheva, Mariya; Cornet, Josiane; Lalanne, Valerie; Chevalier, Frederique; Serot, Thierry; Pilet, Marie-france; Dousset, Xavier. |
| The spoilage potential of eight bacterial groups/species (Serratia spp., Hafnia alvei, Brochothrix thermosphacta, Carnobacterium maltaromaticum, Shewanella baltica, Lactococcus piscium, Photobacterium phosphoreum, "other Enterobacteriaceae" [containing one strain of Moellerella sp., Morganella sp. and Pectobacterium sp.]) isolated from spoiled raw salmon fillets stored under modified atmosphere packaging (MAP) was evaluated by inoculation into sterile raw salmon cubes followed by storage for 12 days at 8 degrees C. Microbial growth and sensory changes were monitored during the storage period. The dominant spoilage bacteria were C maltaromaticum, H. alvei and P. phosphoreum. In order to further characterize their spoilage potential and to study the effect... |
| Tipo: Text |
Palavras-chave: Spoilage potential; Bacterial interaction; Specific spoilage organism; Atlantic salmon; Volatile compounds. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00125/23656/22006.pdf |
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| Morkore, T; Vallet, Jean-luc; Cardinal, Mireille; Gomez Guillen, M; Montero, P; Torrissen, O; Nortvedt, R; Sigurgisladottir, S; Thomassen, M. |
| Relevance of fat content and fillet shape of Atlantic salmon for quality and yield during smoking processing was investigated. Fat content significantly influenced quality of raw and smoked products, although the interactions varied according to the raw material used and smoking temperature. In raw and smoked fillets, increasing fat content coincided with increasing L* and b*-values and decreasing fat holding capacity. In smoked salmon, fat content also correlated positively to the a*-value, smoke-intensity-/wood-fire flavor and fatty texture, and negatively to water holding capacity and shear-force. Weight loss during salting and smoking decreased with increasing fat content, and voluminous shaped fillets gave higher yield than slim fillets. |
| Tipo: Text |
Palavras-chave: Processing; Salmon quality; Fillet shape; Fat content; Atlantic salmon. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-717.pdf |
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| Gonçalves,José Fernando Magalhães; Carraça,Stela; Damasceno-Oliveira,Alfredo; Vicente,Córalia; Costa,Paulo Martins da; Lopes-Lima,Manuel; Ozório,Rodrigo Otávio de Almeida. |
| The freshwater phase of Atlantic salmon Salmo salar L vary between one and eight years. The reduction of the freshwater phase is desirable to reduce freshwater usage, human resources and to increase year round availability of pan-sized salmon. Three trials were conducted to investigate the possibility of supply the market in a year-round basis, with pan-sized Atlantic salmon Salmo salar L. (250-300 g) in Portugal (southern limit of the natural distribution of this species). This study primarily aimed to compare the osmoregulatory ability and growth of different fish sizes, smolts 1+ (trial 1), 1.5+ (trial 2) and 2+ (trial 3), in freshwater and seawater conditions. Additionally, effects of photoperiod were determined in smolts 1.5+ (trial 2) for both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic salmon; Post-smolts development; Smoltification; Seawater transfer. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000100003 |
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| Gaignon, Jean-louis; Quemener, Loic. |
| Atlantic salmon juveniles were subjected to a precocious (day 104 after first feeding) photoperiodic (P) and thermic (T) control. After rearing the fry at 16 degrees C, constant (16 hours of light and 8 hours of darkness, 16 degrees C) (C) and shortened simulated natural S photoperiod and temperature regimes were used in a factorial experimental design until transfer to seawater. The growth obtained with constant (C) regimes was better than with S regimes. In all cases, we observed very early (day 141, mid-June) a clear segregation of the population into two different subpopulations. Among the conditions, all the differences between the upper and lower modes were growth-dependent. We observed different developmental trends of the gill (Na+-K+)-ATPase... |
| Tipo: Text |
Palavras-chave: Photopériode; Température; Smolts 0+; Saumon atlantique; Photoperiod; Temperature; 0(+) smolts; Atlantic salmon. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00190/30159/28746.pdf |
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| Peyronnet, Arnaud; Friedland, K; Maoileidigh, N. Ó; Manning, M; Poole, Marine Institute. |
| The hypothesis that marine survival of Atlantic salmon Salmo Salar is linked to marine growth was explored by using inter-circuli distances and total numbers of circuli existing on scales from a population monitored over nearly four decades. The results suggest that marine growth controls survival, particularly during the late summer and early winter of the first year at sea. Recruitment is strongly linked to growth, described as the total number of circuli, but not to inter-circuli distances. This highlights the potential of patterns of circuli number to be considered as proxies for growth. Indications that hatchery populations might be subject to other mortality events, in addition to those experienced by wild populations, are also presented. (C) 2007... |
| Tipo: Text |
Palavras-chave: Survival; Post smolt; Growth; Circuli; Atlantic salmon. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3230.pdf |
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| Treasurer, James W.; Grant, Andrew; Davis, Paul J.. |
| Licensed medicines available in the U.K. for treating Atlantic salmon infested with sea lice, dichlorvos, azamethiphos, and hydrogen peroxide, can only be administered by bath application. Adverse reactions have been reported to bath treatments including mortalities, inappetance, reduction in growth and reduced louse sensitivity to dichlorvos. The physical constraints of bath treatments are examined and improvements recommended. Oxygen saturation was adequate during treatments but declined rapidly when the tarpaulin was removed. A chemical marker dispersed uniformally both horizontally and vertically in a cage within 5 mins of dispensing indicating dispersal of a medicine is rapid and adequate during treatment. The range in enclosed volumes in 86... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Sea lice; Atlantic salmon; Salar; Bath application; Dichlorvos; Hydrogen peroxide. |
| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/534338 |
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| Cardinal, Mireille; Knockaert, Camille; Torrissen, Ole; Sigurgisladottir, Sjofn; Morkore, Turid; Thomassen, Magny; Vallet, Jean-luc. |
| The relations between smoking parameters and the characteristics of salmon raw material were investigated with respect to yield, colour, flesh content of phenol and salt, and sensory properties. The fish studied were ocean ranched salmon harvested in Iceland in July 1998 and farmed salmon from Norway slaughtered in October 1998 and April 1999. Seven treatments were applied on fresh or frozen raw material combining dry or brine salting with cold smoking at 20 or 30 degreesC. Electrostatic smoking was tested on dry-salted salmon fillets. The results show a lower yield after filleting and trimming with ocean ranched fish. Although freezing had little effect on yield, total loss was slightly greater, especially for fish with low fat content. Sensory... |
| Tipo: Text |
Palavras-chave: Quality parameters; Freezing; Salting; Yield; Smoking; Atlantic salmon. |
| Ano: 2001 |
URL: https://archimer.ifremer.fr/doc/2001/publication-656.pdf |
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| Cardinal, Mireille; Gunnlaugsdottir, Helga; Bjoernevik, Marit; Ouisse, Alexandra; Vallet, Jean-luc; Leroi, Francoise. |
| Samples of different brand names of cold-smoked salmon products were purchased in supermarkets in six different European countries (Belgium, Denmark, France, Germany, Italy and United Kingdom), to classify and select products of smoked salmon for preference establishment. From the 117 products obtained, 60 were selected to characterise the qualities of products available to European consumers. These 60 products of smoked salmon were then ordered directly from the producers in each country. Altogether 57 products were received and analysed. All samples were stored at 4 degreesC and then examined 2 and 3 weeks after production. For all samples, sensory evaluation, chemical (lipid, salt, phenol, TVB-N and trimethylamine content) and physical (texture, colour)... |
| Tipo: Text |
Palavras-chave: Sensory evaluation; Quality parameters; Salting; Smoking; Atlantic salmon. |
| Ano: 2004 |
URL: https://archimer.ifremer.fr/doc/2004/publication-658.pdf |
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| Prouzet, Patrick. |
| The general characteristics of the main salmon (Salmo salar L.) stocks in the Massif armoricain (Brittany and Lower Normandy), in the Loire-Allier and in the Adour-Gaves-Nive have been summarized. Due to the poor quality of the previous fishing statistics, there is no clear picture of the historical evolution of the salmon stock. However, a dramatic decrease in the endemic range of Atlantic salmon in France can be shown since the mid-18th century a nd more particularly during the last 50 years. The lack of precise informations describing the size of the catches and the levels of exploitation at sea and in the estuaries make it impossible to estimate the impact that exploitation has led on the evolution of salmon stocks. The mean age of salmon in freshwater... |
| Tipo: Text |
Palavras-chave: Saumon Atlantique; Salmo salar; Captures; Stocks; France; Atlantic salmon; Salmo salar; Catch records; Stocks; France. |
| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00135/24599/22627.pdf |
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| Ibrahim, A.; MacKinnon, B.M.; Burt, M.D.B.. |
| Smoltifying Atlantic salmon were treated for 6 weeks in freshwater with 0, 200, and 400 ppb zinc (as Zn SO4). After 6 weeks salmon were transferred to a salt water seapen and exposed to infection with Lepeophtheirus salmonis for 14 weeks. Zinc treatment resulted in some physiological changes consistent with increased stress, such as decreased leukocrit values, and increased plasma cortisol levels. Plasma glucose levels were significantly elevated in fish previously treated with zinc, but this was only evident after fish had been in a seapen, 14 weeks subsequent to treatment. Improved conversion of tetraiodothyronine to triiodothyronine, as well as no changes in interrenal cell nuclear diameters suggested that overall stress effects were low. Fish exposed... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Atlantic salmon; Zinc toxicity. |
| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/534403 |
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| Shinn, A.P.; Banks, B.A.; Tange, N.; Bron, J.E.; Sommerville, C.; Aoki, T.; Wootten, R.. |
| Genetic differentiation within the salmon louse Lepeophtheirus salmonis (Krøyer, 1837), was investigated by the sequencing of specific nucleotide regions. Partial sequences of the 18S ribosomal RNA gene and the ribosomal internal transcribed spacer (ITS-1) region from single sea lice were amplified by the polymerase chain reaction (PCR). Lice were collected from wild and farmed Atlantic salmon ( Salmo salar L., 1758) from nine selected localities around the Scottish coastline. A 0.9kb fragment of the 18S ribosomal RNA gene was amplified and compared for several samples of lice which showed no observable differences between the lice from different collection sites confirming the absence of cryptic species. The 454 nucleotide ITS-1 sequence showed... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Sea louse; Copepod; Crustacea; Atlantic salmon; Sequencing; 18S ribosomal DNA; Internal transcribed spacer; Population genetics. |
| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/534343 |
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| Registros recuperados: 17 | |
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