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A quantitative estimation of the energetic cost of brown ring disease in the Manila clam using Dynamic Energy Budget theory ArchiMer
Flye Sainte Marie, Jonathan; Jean, Fred; Paillard, Christine; Kooijman, Sebastiaan.
Brown ring disease (BRD) in the Manila clam, Ruditapes philippinarum, is a bacterial disease caused by the pathogen Vibrio tapetis. This disease induces the formation of a characteristic brown conchiolin deposit on the inner shell and is associated with a decrease in condition index indicating that the development of the disease affects the energy balance of the clam. A previous study showed that the energy budget of the host was affected by a decrease in filtration activity, and hypothesized that a second way to degrade the energy balance was the increase in maintenance costs associated to the cost of immune response and lesion repair. This paper focusses on this second way of degradation of the energy balance. A starvation experiment confirmed that the...
Tipo: Text Palavras-chave: Maintenance Cost; Dynamic Energy Budget Theory; Energetic Cost; Energy Budget; Brown Ring Disease; Manila Clam.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6787.pdf
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Modélisation bioénergétique de la croissance, du développement et de la reproduction d'un petit pélagique : l'anchois du golfe de Gascogne ArchiMer
Pecquerie, Laure.
Understanding the recruitment variability of fish populations is a major challenge in fishery sciences. In the present work, we explore a new approach to study the potential factors that determine this recruitment in the context of biophysical modelling. The adult spawning pattern might influence the survival of the larvae as it determines the environmental conditions they experience during this critical period. We apply our study to the Bay of Biscay anchovy Engraulis encrasicolus, which is a multiple-batch spawner. The objective of the study is to understand the effect of the environmental conditions experienced by an individual i) on the energy available for reproduction and ii) on the temporal distribution of the spawning events and its consequences...
Tipo: Text Palavras-chave: Inter individual variability; Environmental scenarios; Link fish metabolism otolith; Larval survival; Spawning windows; Engraulis encrasicolus; Dynamic Energy Budget theory; Life cycle; Bioenergetic; Modelling; Variabilité inter individuelle; Scénarios environnementaux; Lien métabolisme otolithe; Survie larvaire; Fenêtres de ponte; Engraulis encrasicolus; Energy Budget; Théorie Dynamic; Cycle de vie; Bioénergétique; Modélisation.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-3505.pdf
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Physiological responses of two ecologically important Kenyan mangrove crabs exposed to altered salinity regimes OceanDocs
De Wachter, B.; Gillikin, D.P.; Tack, J..
The potential long-term effects of altered salinity regimes on the bioenergetics of two ecologically important Kenyan mangrove crabs, Neosarmatium meinerti de Man, 1887 and Neosarmatium smithi H. Milne Edwards, 1853 were investigated in light of recent findings suggesting that groundwater redirection may alter salinity regimes in Kenyan mangroves. Although changes in groundwater may cause only small increases in salinities, these changes would be chronic and may impact crab populations already living above their optimal salinity. To assess potential impacts, fundamental physiological processes and hemolymph components were measured on animals acclimated to 16‰, 32‰, 48‰ and 65‰ for 4 weeks in a field laboratory. For comparative purposes, crabs were also...
Tipo: Journal Contribution Palavras-chave: Ecophysiology; Salinity Tolerance; Energy Budget; Osmoregulation; Sesarmidae; Crab fisheries.
Ano: 2004 URL: http://hdl.handle.net/1834/693
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