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Summer mortality of Pacific oyster Crassostrea gigas : the Morest Project /
| Clasificación: | Libro Electrónico |
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| Otros Autores: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Versailles :
Éditions Quæ,
2008.
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| Colección: | Collection Synthèses (Versailles, France)
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Acknowledgements; Contents; Preface; Chapter 1 Evaluation of summer mortality risk factors in shellfish farming ecosystems; Introduction; The thermal risk factor; The pluviometric risk factor; The trophic risk factor; The sediment risk factor; Discussion -conclusion; Chapter 2 Mortality risks associated with physiological traits of oysters during reproduction; Introduction; Materials and methods; Gametogenesis, nutrition and mortalities; Metabolic needs in summer; The use of reserves over the summer period; Nutrition and energy balance during summer; Immune deficiency in summer.
- General conclusionChapter 3 Oyster summer mortality risks associated with environmental stress; Introduction; Experimental stress studies; Sources of disturbance and environmental stress examined with the 'bottom-rack ' comparison model; Conclusion; Chapter 4 The genetic basis of summer mortality in Pacific oyster spat and potential for improving survival ; Introduction:context and objectives; First generation:estimation of the genetic basis of spat survival in their first summer in the field.
- Second generation:divergent selection for high and low survival of spat in their first summer in the fieldThird generation:repeatability of the response to divergent selection for high or low spat survival in the first summer ; Fourth generation:repeatability of response to selection; Field survival performances in the second summer period; Laboratory studies of spat survival performance and correlations with field data; Discussion and prospects for future research; A review of the use of selection methods for shellfish improvement worldwide.
- Points for the creation of a collaborative selection program to improve oyster summer survival in France:Gigas+Appendix:Summary list of Morest generations and batches studied; Chapter 5 Phenotypic characteristics of 'R' and 'S' oyster lines, selected for resistance or susceptibility to summer ; Introduction; Differences in gametogenesis and reproductive effort between R and S oysters; Comparative energy balance of R and S oysters; Defense capacities of R and S oysters; Stress responses of R and S oysters; Aneuploidy levels of R and S oysters; R and S oyster responses to pathogenic agents.
- Differential gene expression between R and S oysters and the identification of physiological functions conferring resistance to summer mortalityGeneral discussion and conclusion; Chapter 6 Oyster summer mortality risks associated with pathogens; Introduction; Finding and identifying potential candidate pathogens; Pathogenicity and conditions of expression of infection; The search for bacterial virulence genes; Pathogenic agents and risk definition; Conclusion; Chapter 7 Temperature as a risk factor in oyster summer mortality; Introduction; Oyster physiology; The sediment and 19 C.