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| Registros recuperados: 919 | |
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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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| Drouineau, Hilaire; Mahevas, Stephanie; Bertignac, Michel; Duplisea, Daniel. |
| Drouineau, H., Mahevas, S., Bertignac, M., and Duplisea, D. 2010. A length-structured spatially explicit model for estimating hake growth and migration rates. - ICES Journal of Marine Science, 67: 1697-1709. |
| Tipo: Text |
Palavras-chave: Growth; Length-structured model; Merluccius merluccius; Migration; Spatial model. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00016/12714/9767.pdf |
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| Wellenreuther, Maren; Le Luyer, Jeremy; Cook, Denham; Ritchie, Peter A.; Bernatchez, Louis. |
| Identifying genes and pathways involved in domestication is critical to understand how species change in response to human-induced selection pressures, such as increased temperatures. Given the profound influence of temperature on fish metabolism and organismal performance, a comparison of how temperature affects wild and domestic strains of snapper is an important question to address. We experimentally manipulated temperature conditions for F1-hatchery and wild Australasian snapper (Chrysophrys auratus) for 18 days to mimic seasonal extremes and measured differences in growth, white muscle RNA transcription and hematological parameters. Over 2.2 Gb paired-end reads were assembled de novo for a total set of 33,017 transcripts (N50 = 2,804). We found... |
| Tipo: Text |
Palavras-chave: Domestication; Temperature; Transcriptomics; Growth; Sparidae. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00476/58788/61321.pdf |
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| Mazurie, Joseph; Foucart, Marie; Langlade, Aime; Bouget, Jean-francois; Fleury, Pierre-gildas; Joly, Jean-pierre; Martin, Anne-genevieve. |
| This study deals with rearing methods, growth and mortality performances, and problems encountered by the oyster farmers from Quiberon Bay (2800 ha of leases) : it relies on a survey achieved in july 2001, about 18 oyster farmers, and 2 diving campaigns (july and october 2001) on 2 years old oyster batches from the same farmers. The analysed enterprises vary in particular by the location and depth of their concession inside the bay, but also by their rearing scheme : a majority favours seedings with 18 month old oysters or more, according to prices and availability of oysters supplies. The duration until marketable size and mean mortalities seem to have increased since a preceding inquiry in 1986. The main constraint, affecting priorly the south border... |
| Tipo: Text |
Palavras-chave: Rearing practices; Density; Predators; Mortality; Growth; Bay of Quiberon; Crassostrea gigas; Cupped oyster; Pratiques culturales; Densité; Algues; Prédateurs; Mortalité; Croissance; Baie de Quiberon; Crassostrea gigas; Huître creuse. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/rapport-6103.pdf |
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| Suarez, J. A.; Gaxiola, G.; Mendoza, R.; Cadavid, S.; Garcia, G.; Alanis, G.; Suarez, A.; Faillace, J.; Cuzon, Gerard. |
| Fish meal (FM) has long been considered an essential ingredient for the formulation of shrimp feeds. Until recently, 12%FM was considered a minimum amount, below which weight gain would become reduced due to a reduction in feed intake. In order to test this perceived minimum value, an experiment was conducted on a long-term basis with 4 replicates. Four practical isonitrogenous and isoenergetic diets were formulated for Litopenaeus vannamei juveniles. Survival, weight gain, feed conversion ratio (FCR) and protein efficiency ratio were determined for 0, 6, 10 and 15% FM diets and a reference diet. Shrimp survival ranged from 84 to 86.5%. Shrimp fed a diet with 0% FM showed lower average weight and SGR compared to the other treatments (P<0.05). FCR of... |
| Tipo: Text |
Palavras-chave: Metabolism; Growth; Plant proteins; Substitution fish meal; L. vannamei. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6630.pdf |
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| Claireaux, Guy; Theron, Michael; Prineau, Michel; Dussauze, Matthieu; Merlin, Francois Xavier; Le Floch, Stephane. |
| The worldwide increasing recourse to chemical dispersants to deal with oil spills in marine coastal ecosystems is a controversial issue. Yet, there exists no adequate methodology that can provide reliable predictions of how oil and dispersant-treated oil can affect relevant organism or population-level performance. The primary objective of the present study was to examine and compare the effects of exposure to untreated oil (weathered Arabian light crude oil), chemically dispersed oil (Finasol, TOTAL-Fluides) or dispersant alone, upon the ability of fish for environmental adaptation. To reach that goal, we implemented high-throughput, non-lethal challenge tests to estimate individual hypoxia and heat tolerance as surrogate measures of their capacity to... |
| Tipo: Text |
Palavras-chave: Oil-spill; Dispersant; Fish; Temperature; Hypoxia; Survival; Growth; Environmental adaptation ability; Darwinian fitness. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00137/24831/23045.pdf |
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| Wilson, Jg. |
| Changes in the Tellina tenuis population in Dublin Bay, Ireland since 1977 are described. Population density at the monitoring site increased from 260 m(-2) (although a maximum density of 548 m(-2) was found nearby) in 1977 to a peak of 434 m(-2) in 1989. Densities recently have been the lowest recorded, around 170 m(-2). These changes do not seem to have been associated with any change in elevation of the site. The population structure has changed considerably, from one dominated by larger, older animals in 1977, when there did not seem to have been any significant recruitment for the previous two years, to one in which recruitment, if not in any great numbers, has at least been more or less regular, with the last two years (1993 and 1994) showing the... |
| Tipo: Text |
Palavras-chave: Tellina tenuis; Long-term; Population; Growth; Ireland. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00093/20396/18063.pdf |
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| Arnold, C. |
| An overview of the methods of producing red drum are discussed. Although red drum culture is new compared to the culture of other species there is much interest in the production both in earthen ponds and in recirculating intensive systems. Various strategies for both methods will be discussed. This includes stocking rates, optimum growth, temperature, salinity and growth rates of red drum (Sciaenops ocellatus). |
| Tipo: Text |
Palavras-chave: Salinity tolerance; Temperature effects; Growth. |
| Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/1989/acte-1480.pdf |
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| Jacq, E; Moal, Jeanne; Samain, Jean-francois; Corre, S; Daniel, J; Nicolas, Jean-louis; Cochard, Jean-claude; Fera, P. |
| Larval rearings were performed with seawater either freshly pumped or after storage in a pond. Concerning bacterial populations these waters were characterized by a high diversity, little sized bacteria whose few of them (1%) were cultivable on Zobell medium. In the tanks, the bacterial ecosystem was modified by the presence of antibiotics, larvae and algae: the diversity was lowered, the cellular volume was increased by a factor 2 to 5, 100% bacteria were cultivable and chloramphenicol resistant, and their metabolism changed. Taxonomic screening showed no differences among the two waters neither at the beginning nor at the end of the rearings. However, depending on the water (stored or not) differences were identified for bacterial physiology and... |
| Tipo: Text |
Palavras-chave: Marine aquaculture; Pond culture; Scallop culture; Ecology; Antibiotics; Organic matter; Grazing; Carbohydrates; Mathematical models; Modelling; Growth; Bacterial diseases; Biological production; Culture tanks; Larvae; Rearing. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-914.pdf |
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| Boufersaoui, Samira; Kassar, Abderrahmane; Mokrane, Zakia; Elleboode, Romain; Mahe, Kelig. |
| Background. Striped seabream, Lithognathus mormyrus (Linnaeus, 1758), is a bony fish, which has a high economic value on the Algerian coast. Because of the increasing fishing pressure, however, a close monitoring is recommended. The information about the biology of this species, occurring in the south-western Mediterranean Sea and especially in the north African coast, is very limited. The presently reported study provides new estimated data on age and growth parameters of striped seabream in Algeria. Materials and methods. A total of 449 specimens of L. mormyrus were sampled for 2 years (January 2013 to December 2014) from the commercial fishery in the central part of the Algerian coast. The samples were collected monthly. The fish ranged in size from... |
| Tipo: Text |
Palavras-chave: Lithognathus mormyrus; Otolith; Age; Growth; Algerian coast; Mediterranean Sea. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00473/58448/61028.pdf |
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| Boudry, Pierre; Collet, B; Mccombie, Helen; Ernande, Bruno; Morand, B; Heurtebise, Serge; Gerard, Andre. |
| In order to study individual growth variability and its relationship with survival in juvenile Crassostrea gigas, parental oysters were sampled at four sites located along the French Atlantic coast and bred under controlled hatchery conditions. Four groups of larvae were obtained by crossing five males and five females from each of the four sites, and a fifth group by crossing these 20 males and 20 females together in a pool. Larvae were reared under conditions allowing the maintenance of a maximum variability of size and gave five experimental groups. Oysters were individually monitored for growth and survival from 3 to 10 months after fertilization. The individual growth performances were relatively stable over time and no noticeable compensation for... |
| Tipo: Text |
Palavras-chave: Survival; Oysters; Growth; Crassostrea gigas; Aquaculture. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-467.pdf |
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| Robert, Rene; Pichot, Yves; Comps, Michel. |
| From 1988 to 1989, a study has been conducted pertaining to the growth of the flat oyster Ostrea edulis, as well as Marteilia refringens and Bonamia ostreae outbreaks. Commercial mono specific farming (flat oysters), with low density or mixed (flat and hollow oysters) along with higher density, has been taking place in the Arcachon basin oceanographic sectors, where main hydrobiological parameters were acquired simultaneously. The excellent growth of the flat oyster was witnessed in mono specific farming. However this growth was average in mixed farming, probably due to higher total oyster density and interspecies competition. Regardless of the type of farming, Marteilia refringens infection was very quick and may have been related to climatic bay water... |
| Tipo: Text |
Palavras-chave: Basin of Arcachon; Pathology; Bonamia ostreae; Marteilia refringens; Growth; Ostrea edulis; Bassin d'Arcachon; Pathologie; Bonamia ostreae; Marteilia refringens; Croissance; Ostrea edulis. |
| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/1990/rapport-1592.pdf |
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| Véron, Matthieu; Duhamel, Erwan; Bertignac, Michel; Pawlowski, Lionel; Huret, Martin; Baulier, Loic. |
| Age and size at maturation appear as key parameters governing the dynamics of a population as they affect growth rate, fecundity, and survival. The expression of such life history traits is determined by genetic make-up and modulated by environmental factors mainly through phenotypic plasticity. Moreover, fishing, besides decreasing population size and changing demographic composition can alter allelic frequencies through fisheries-induced evolution by selecting for some particular traits. In the Bay of Biscay, a decreasing trend in both sardine body condition and size-at-age has recently been pointed out at the population level. The Probabilistic Maturation Reaction Norm (PMRN) approach was applied to help disentangle phenotypic plasticity and genetic... |
| Tipo: Text |
Palavras-chave: Fisheries-induced evolution; Body condition; Phenotypic plasticity; Maturation; Growth; Sardina pilchardus; Bay of biscay. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00660/77203/78637.pdf |
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| Haure, Joel; Fortin, Adeline; Dupuy, Beatrice; Nourry, Max; Palvadeau, Hubert; Papin, Mathias; Penisson, Christian; Martin, Jean-louis. |
| Introduction: Marine farming in France is currently very widely dominated by oyster farming. French oyster production totals 148,467 tons, for a turnover of close to 280 million euros, making France the leading European producer. The two main species concerned are the cup oyster, Crassostrea gigas (140,000 tons) and the flat oyster, Ostrea edulis (2,000 tons), the production of which has collapsed since 1970 following successive epizootics of Marteilia refringens and Bonamia ostreae. French oyster farming is thus in a situation of quasi single-crop farming, with more than 90% of tonnage pertaining to the cup oyster (FAO data from 1993). This situation of quasi single-crop farming leads to the pessimistic observation that one hypothetical crisis in the... |
| Tipo: Text |
Palavras-chave: Growth; Ecophysiology; Oyster; Crassostrea Gigas; Eeproduction; Milieu Controle; Croissance; Triploide; Diploide; Ostreidae; Huitre; Crassostrea Gigas; Ecophysiologie; Reproduction. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/rapport-1509.pdf |
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| Goulletquer, Philippe; Joly, Jean-pierre; Gerard, Andre; Le Gagneur, Eric; Moriceau, Jacques; Peignon, Jean-marie; Heurtebise, Serge; Phelipot, Pascal. |
| Triploid oysters Crassllstrea gigas were: produced in 1990 by treating fertilized eggs with cytochalasin B (CS). Triploids, treated diploids, and controls were deployed early 1991 in a high carrying capacity ecosystem on the Eastern Coast of Normandy (France). A monthly monitoring in 1992 showed that triploids yielded significantly higher growth rate and biochemical composition. However, growth was more heterogeneous. No evidence was found for a length or weight bimodal frequency distribution within triploid groups after a 26 months rearing cycle. Triploids showed retardation of gametogenesis. Carbohydrates content in triploids remained almost constant (40%) from June to September. Their survival rates were significantly lower than controls. Moreover... |
| Tipo: Text |
Palavras-chave: Biochemical compostion; Survival; Carrying capacity; Triploid; Growth; Oysters; Crassostrea gigas; Composition biochimique; Survie; Capacité trophque; Triploïdes; Croissance; Huîtres; Crassostrea gigas. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/1996/publication-3088.pdf |
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| Fleury, Pierre-gildas; Cornette, Florence; Claude, Serge; Palvadeau, Hubert; Robert, Stephane; D'Amico, Florence; Le Gall, Patrik; Vercelli, Catherine; Pien, S. |
| The monitoring network IFREMER /REMORA is assessing, on a yearly basis, mortality, growth and quality criteria of two oyster batches ("juveniles" = one-year old ; and "adults" = two-years old), distributed among various stations of the main French oyster areas. Samplings are carried out in March, June, September and December. This network is a tool for trend estimations (geographic and chronological, on the national scale) ; it must not be considered as an accurate estimation of professional oyster ongrowings. In 2001, mortality mainly occured in Summer on "adults" in baie des Veys (Normandy) and on juveniles in Cancale and Pénerf (Brittany) and in Fouras and Marennes (Poitou-Charentes). With an average individual weigh of 59 g in December, 2001 has been a... |
| Tipo: Text |
Palavras-chave: Polydora; Quality; Growth; Mortality; Crassostrea gigas; Cupped (gigas) oyster; France; REMORA; Polydora; Qualité; Croissance; Mortalité; Crassostrea gigas; Huître creuse; France; REMORA. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/rapport-2438.pdf |
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| Registros recuperados: 919 | |
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