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Gennequin Cédric Hany Sara Tidahy Haingomalala Lucette Aouad Samer Estephane Jane Aboukaïs Antoine Abi-Aad Edmond 《Environmental science and pollution research international》2016,23(22):22744-22760
Environmental Science and Pollution Research - Hydrogen production by methane dry reforming is an important yet challenging process. A performing catalyst will favor the thermodynamic equilibrium... 相似文献
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Christine S. Couturier Alice Rouault David McKenzie Robert Galois Serge Robert Lucette Joassard Guy Claireaux 《Marine Biology》2007,152(4):803-814
The French Atlantic coast contains large highly productive intertidal mudflats that are colonised by juveniles of numerous
flatfish species, including the common sole (Solea solea, L.). These ecosystems are also heavily exploited by the shellfish farming industry. Intensive bivalve culture is associated
with substantial biodeposition (1–6 t-dw ha−1 day−1), which directly or indirectly contributes to increase exopolysaccharide (EPS) concentrations at the interface between water
column and seabed. EPS are long-chain molecules organised into colloids, which influence rheological properties of water,
particularly viscosity. Increased water viscosity had consequences for ventilatory activity of juvenile flatfish, whereby
the minimal pressure required to ventilate the medium increases directly with EPS concentration. Moreover, the critical EPS
concentration ([EPS]crit) at which water was no longer able to flow through the branchial basket ranged from almost nil to over 30 mg l−1, depending on species and size. [EPS]crit was lower in small individuals and individuals from species with high metabolic rates (turbot and plaice). These differences
may depend upon gill and bucco-branchial cavity morphometrics. The ventilatory workload of sole increased with viscosity to
a maximum at 2 mg EPS l−1. Viscosity might, therefore, be a limiting factor for flatfish post larvae, which colonise the intertidal mudflats, depending
upon their size and species. EPS concentrations in the field can reach 15 mg l−1. A selective effect is conceivable but remains to be estimated in the field. 相似文献
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