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| Registros recuperados: 517 | |
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| Taris, Nicolas; Baron, S; Sharbel, Tim; Sauvage, Christopher; Boudry, Pierre. |
| The analysis of parentage using microsatellite markers is of increasing importance, notably in aquaculture genetic research where communal rearing of mixed families can be used to reduce unwanted environmental variance. We present here an optimization of parental genotype assessment for larvae or adults of the Pacific oyster, Crassostrea gigas, using a multiplex system of three microsatellite loci. In conjunction with a simple DNA extraction protocol, this method enables high throughput analyses of parentage in C. gigas. Using this method, we successfully determined the parentage of 93% (1224 out of 1318) of the progeny in a factorial cross between 3 females and 10 males. The inability to genotype the remaining 7% was due to DNA degradation of larvae... |
| Tipo: Text |
Palavras-chave: Oysters; Aquaculture; Parental assignment; High throughput; Larval DNA extraction; Multiplex. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1814.pdf |
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| Filgueira, Ramon; Grant, Jon; Bacher, Cedric; Carreau, Michel. |
| Ecological modeling of dynamic systems such as marine environments may require detailed spatial resolution when the modeled area is greatly influenced by complex physical circulation. Therefore, the simulation of a marine ecosystem must be underlain by a physical model. However, coupling hydrodynamic and biogeochemical models is not straightforward. This paper presents a modeling technique that can be used to build generic and flexible fully-spatial physical-biogeochemical models to study coastal marine ecosystems using a visual modeling environment (VME). The model core is constructed in Simile, a VME that has the capacity to create multiple instances of submodels that can be interconnected, producing a fully-spatial simulation. The core is designed to... |
| Tipo: Text |
Palavras-chave: Physical-biogeochemical coupling; Marine spatial planning; Aquaculture; Simile. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00071/18231/15842.pdf |
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| Copp, G. H.; Godard, M. J.; Russell, I. C.; Peeler, E. J.; Gherardi, F.; Tricarico, E.; Miossec, Laurence; Goulletquer, Philippe; Almeida, D.; Britton, J. R.; Vilizzi, L.; Mumford, J.; Williams, C.; Reading, A.; Rees, E. M. A.; Merino-aguirre, R.. |
| Developed for carrying out risk assessments under the European Commission (EC) Council Regulation No 708/2007 concerning the use of alien and locally absent species in aquaculture (ASR), the European Non-native Species in Aquaculture Risk Assessment Scheme (ENSARS) is briefly summarised, and the ‘Organism’ module is applied to the 24 species listed in ASR's Annex IV. Four other ENSARS modules (Infectious Agent, Facility, Pathway, and Socio-economic) were used to assess two case study species (European catfish Silurus glanis L. and red swamp crayfish Procambarus clarkii Girard). No Annex IV species was categorised as low risk, 10 as moderately low risk, 12 as medium risk, two as moderately high risk and none as high risk. The results are discussed and... |
| Tipo: Text |
Palavras-chave: Aquaculture; Biological invasions; Decision support; ENSARS; EU legislation; Risk analysis. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00189/30032/29433.pdf |
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| Krause, Gesche; Brugere, Cecile; Diedrich, Amy; Ebeling, Michael W.; Ferse, Sebastian C. A.; Mikkelsen, Eirik; Perez, Jose; Stead, Selina M.; Stybel, Nardine; Troell, Max. |
| Tipo: Text |
Palavras-chave: Aquaculture; Socio-economic assessment; Human dimensions; Integrated analysis framework; Public participation. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00252/36301/34830.pdf |
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| Dhert, P.; Lavens, P.; Sorgeloos, P.. |
| A stress test is proposed for the evaluation of the physiological condition of fish larvae in nutritional studies. The test was used in a study of quantitative (n-3) highly unsaturated fatty acids (HUFA) requirements in larval <i>Lates calcarifer</i> and <i>Siganus guttatus</i>. It enabled to suggest fast intervention at reduced larval quality and allowed to prevent mass mortalities. The stress test offered valuable information for the quantification study of fatty acid requirements in marine fish larvae. In <i>Lates</i> demands for fatty acids were detected in metamorphosis. In <i>Siganus</i> on the other hand, the sensitivity of the larvae was considerably reduced after short (n-3) HUFA boosting of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Fry; Quality control; Tests. |
| Ano: 1992 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2761 |
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| Haffray, Pierrick; Enez, Florian; Bugeon, Jerome; Chapuis, Herve; Dupont-nivet, Mathilde; Chatain, Beatrice; Vandeputte, Marc. |
| Marker-based parentage assignment provides the opportunity to investigate factors of efficiency for mixed-family designs and factorial mating. In such designs, family size is both uncontrolled and small, which may be thought to limit the accuracy of estimated breeding values (EBVs). The objective of this work was to estimate the accuracy of EBVs of growth and quality traits in a large factorial mating design and in commercial breeding conditions. An expected six hundred full-sib families of rainbow trout Oncorhynchus mykiss (2042 fish in total) were produced by ten factorial matings of six dams with ten sires. Fish were phenotyped for body weight, carcass yield, fillet yield, fillet fat content and fillet colour, and family information was recovered using... |
| Tipo: Text |
Palavras-chave: Aquaculture; Salmonids; DNA parentage assignment; Sib selection; EBV accuracy. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00429/54062/55395.pdf |
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| Lazard, Jerome; Baruthio, Aurele; Mathe, Syndhia; Rey-valette, Helene; Chia, Eduardo; Aubin, Joel; Clement, Olivier; Morissens, Pierre; Mikolasek, Olivier; Legendre, Marc; Levang, Patrice; Blancheton, Jean-paul; Rene, Francois. |
| The new sustainable development data repository requires new analysis grids, in particular for factors accounted for in productive system typologies. This paper, based on the aquaculture example, analyses the diversity in aquaculture systems with respect to sustainable development. Various typologies are obtained by evaluating structural and functional approaches integrating variables related to production and regulation systems and to the territorial insertion of fish farms. Categories have been defined on a scale based on a set of five sites, which are representative of a wider range of aquaculture systems. Use of these categories goes beyond the local typologies and prepares a generic meta-typology classification for the systems. This generic... |
| Tipo: Text |
Palavras-chave: Typology; Sustainable development; Aquaculture. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6560.pdf |
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| Moehl, J.; Machena, C.. |
| The African Region consists of 48 countries and five island nations, most of which are practising some form of aquaculture, often at a very low level. Over half the countries report producing less than 100 mt annually. The largest producer is Nigeria (17 700 mt) followed by Madagascar (5 100 mt) and Zambia (4 700 mt). The 1997 combined aquaculture production of the region was 40 300 mt. Aquaculture is estimated to be 95 percent small scale, with fish ponds integrated into the mosaic of agricultural activities. Mean yield is approximated as 500 kg/ha/yr, although the range is wide, from less than a hundred to more than 10 000 kg/ha/yr. A typical scenario would be a 300 m2 pond producing 15 kg a year relying on family labour and on-farm inputs. There is... |
| Tipo: Proceedings Paper |
Palavras-chave: Fish Farming; Aquaculture; Sub-Saharan Africa; Development; Africa; Aquaculture. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/371 |
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| Pereira, Kayo Julio Cesar. |
| O presente artigo apresenta uma análise do papel da agricultura nos sistemas de produção das Reservas Amanã e Mamirauá, descrevendo sua trajetória recente em nove comunidades, e identificando as principais identidades produtivas. Predomina em todas as comunidades um sistema de produção complexo, formado por agricultura, pesca, caça e extrativismo, com a agricultura ou a pesca assumindo função protagônica, de acordo com a estratégia de geração de renda de cada família. Os sistemas agrícolas vêm passando por intenso processo de transformação, diretamente relacionado à intensificação do contato das comunidades com a vida citadina, com a implantação de políticas de conservação e manejo dos recursos naturais e com o incremento da importância dos produtos... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Farming Systems; Aquaculture. |
| Ano: 2011 |
URL: http://orgprints.org/22996/1/Pereira_Agricultores.pdf |
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| Cotrim, Décio Souza. |
| A presente dissertação de mestrado se concentrou na análise da comunidade de pescadores artesanais de Tramandaí-RS. A complexidade do objeto de estudo levou a opção metodológica do uso do enfoque sistêmico para a operacionalização da pesquisa A adaptação da teoria de sistemas agrários para o trabalho com pescadores foi o caminho escolhido. Desta forma, através da reconstituição da evolução e diferenciação de sistemas pesqueiros foi possível a identificação de quatro fases, ou sistemas pesqueiros, que constituíram os momentos de desenvolvimento comunitário com características próprias e diferenciais. No último sistema pesqueiro, o contemporâneo, foi realizada uma divisão tipo lógica dos atuais sistemas de produção na pesca e as suas descrições. Foram... |
| Tipo: Thesis |
Palavras-chave: Farm economics; Social aspects; Aquaculture. |
| Ano: 2008 |
URL: http://orgprints.org/21741/1/Cotrim_Agroecologia.pdf |
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| Le Berre, Jerome. |
| Introduction: This document is the End of Second Year internship report for Rennes University 1's Senior Math and Computer Science Modelisation Professional diploma. This two month internship was completed at the Brest IFREMER center at the Coastal Ecology department. IFREMER participates, in the course of its institutional missions, in observation and coastal sea surveillance, in order to improve on the knowledge, protection methods and restoration of the marine environment. Marine phytoplankton proliferation is an important study subject because of its potential cause for nuisance, for men, consumers of sea products as well as for the ecosystem. During Spring and Summer, shellfish become invariably unsuitable for consumption due to toxins produced by... |
| Tipo: Text |
Palavras-chave: Aquaculture; Growth; Phytoplanctonic algae; Mathematical models. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/rapport-1770.pdf |
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| Registros recuperados: 517 | |
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