Consulta: subjectFacets:"Filter feeding"
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Data/hora: 11/06/2024 05:40:58

A comparative ecophysiological study of two infaunal filter-feeding bivalves: Paphia rhomboides and Glycymeris glycymeris
Provedor de dados: 5
Autores: Savina, Marie; Pouvreau, Stephane.
A comparative ecophysiological study was carried out in September and November 2002 for two bivalves, Paphia rhomboides and Glycymeris glycymeris, which are significantly harvested in the Western Channel (French coast). Individual measurements of clearance and respiration rates were performed for both species, in several experimental conditions of temperature and phytoplankton concentrations. Those conditions were chosen to be in the range of those commonly observed in the subtidal area of the Western Channel. The mean value of clearance rate and oxygen consumption obtained from continuous data recording did not reveal any significant influence of temperature in the investigated range, but a significant difference between P rhomboides and G. glycymeris....
Tipo: Text
Palavras-chave: Filter feeding; Bivalves; Glycymeris glycymeris; Paphia rhomboides; Scope for growth; Ecophysiology.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-379.pdf

Size-dependent variations on the nutritional pathway of Bathymodiolus azoricus demonstrated by a C-flux model
Provedor de dados: 5
Autores: Martins, Irene; Colaco, Ana; Dando, Paul R; Martins, I; Desbruyeres, Daniel; Sarradin, Pierre-marie; Marques, J; Serrao Santos, R.
Bathymodiolus azoricus is a mussel from vent fields in the south-west of the Azores Triple junction (Mid-Atlantic Ridge-MAR). Experimental evidence indicates that B. azoricus is a mixotrophic organism, which obtains energy from a dual endosymbiosis and filter-feeding. Yet the relative contribution of symbiosis and filter-feeding to B. azoricus nutrition is still unclear. To address this question, we developed and individual-based model which describes sulphide and methane uptake by endosymbionts, the energy gained through microbial oxidations, the transfer of energy from endosymbionts to B. azoricus, filter-feeding of particulate organic matter (POC) by B. azoricus and the energetic wastes of the mytilid with respiration. The model accounts for...
Tipo: Text
Palavras-chave: Carbon flux model; Organic matter; Size; Filter feeding; Endosymbiosis; Bathymodiolus azoricus.
Ano: 2008
URL: https://archimer.ifremer.fr/doc/2008/publication-4541.pdf