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| Tengberg, Anders; Hall, P; Andersson, U; Linden, B; Styrenius, O; Boland, G; De Bovee, F; Carlsson, B; Ceradini, S; Devol, A; Duineveld, G; Friemann, J; Glud, R; Khripounoff, Alexis; Leather, J; Linke, P; Lund Hansen, L; Rowe, G; Santschi, P; De Wilde, P; Witte, U. |
| We have compared 14 different sediment incubation chambers, most of them were used on bottom landers. Measurements of mixing time, pressure gradients at the bottom and Diffusive Boundary Layer thickness (DBL) were used to describe the hydrodynamic properties of the chambers and sediment-water solute fluxes of silicate (34 replicates) and oxygen (23 replicates) during three subsequently repeated incubation experiments on a homogenized, macrofauna-free sediment. The silicate fluxes ranged from 0.24 to 1.01 mmol m(-2) day(-1) and the oxygen fluxes from 9.3 to 22.6 mmol m(-2) day(-1). There was no statistically significant correlation between measured fluxes and the chamber design or between measured fluxes and hydrodynamic settings suggesting that type of... |
| Tipo: Text |
Palavras-chave: Comparative flux incubations; Hydrodynamic properties; Calibration; Benthic chambers. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-750.pdf |
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| Arzul, G; Panouse, M; Romana, A; Fiala, M; Razouls, S; De Bovee, F; Labat, J.p.. |
| As part of its nuclear program, E.D.F. put the C.N.E.X.O. in charge of the ecological study of a list of sites that had been considered for the implantation of nuclear power plants on the Mediterranean coast: PORT-la-N0UVELLE South, PORT-la-NOUVELLE North and FLEURY-sur-AUDE. The aim of this study is to compare, from an ecological point of view, the different sites during critical periods of the annual cycle: summer and spring. This report summarises the results of the two campaigns (ECOLION l and II) conducted on the area located between the Cap d'Agde and the Cap Leucate, and including the three studied sites. The study analysed the physicochemical parameters and the primary and secondary pelagic productions, and includes a qualitative and quantitative... |
| Tipo: Text |
Palavras-chave: Ecology; Ecolion; Cruise; Mediterranean sea; Ecologie; Ecolion; Campagne océanographique; Mer Méditerranée. |
| Ano: 1982 |
URL: http://archimer.ifremer.fr/doc/1982/rapport-3698.pdf |
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| Gremare, A; Amouroux, Jm; Cauwet, G; Charles, F; Courties, C; De Bovee, F; Dinet, A; Devenon, Jean-luc; Durrieu De Madron, X; Ferre, B; Fraunie, P; Joux, F; Lantoine, F; Lebaron, P; Naudin, Jj; Palanques, A; Pujo-pay, M; Zudaire, L. |
| A survey involving both permanent mooring and high frequency sampling was carried in the Bay of Banyuls-sur-Mer during the fall of 1999 to assess the effect of strong and unpredictable meteorological events on the functioning of a coastal Mediterranean ecosystem. A severe winter storm took place on 12 November, which generated waves with a significant height of 7 m and a sea surface rise of about 0.5 m. The near-bottom current speed at 24 m reached 30 cm s(-1). This storm induced a significant increase in total suspended matter through resuspension and then a subsequent increase in gross sedimentation rates. It also resulted in an increase of the proportion of refractory particulate organic matter in the water column. It also tended to increase nutrient... |
| Tipo: Text |
Palavras-chave: Impact à une tempête; Méditerranée nord-occidentale; Ecosystème côtier; Impact of storm; NW Mediterranean Sea; Coastal ecosystem. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00321/43265/42996.pdf |
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