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| Many, G; Durrieu De Madron, Xavier; Verney, Romaric; Bourrin, F; Renosh, Pr; Jourdin, F; Gangloff, A. |
| Regions Of Freshwater Influence (ROFI) are of particular interest in a source-to-sink approach in terms of sediment advection, settling, and deposition in the coastal zone. An experiment was carried out in the ROFI of the Rhône River in February 2016 to describe the properties of suspended particulate matter (SPM) during a flood event. A digital holographic camera (LISST-HOLO, 20–2000 μm) was used to estimate the variability of fine sediment floc properties (size, nature and shape) formed in the Rhône mouth. An automatic image toolbox was developed to classify the different constituents of the SPM (as diatoms, bubbles and flocs) and to describe the diversity of floc shapes existing in the material in suspension. We estimated the fractal dimension (DF3D),... |
| Tipo: Text |
Palavras-chave: Flocculation; Fractal dimension; Settling velocity; ROFI; Rhone. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00478/58952/61540.pdf |
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| Vassallo, P; Doglioli, Andrea; Rinaldi, F; Beiso, I. |
| Settled uneaten feed causes the most intense impact under sea cages, and settling velocity of the feed pellets represents a key parameter for waste dispersion models. Even if some data about physical properties of feed pellets have been published in the framework of salmonid rearing, there is a complete lack of information related to the Mediterranean Sea, as regards typical values of temperature, salinity and feed composition for Gilthead Sea Bream (Sparus aurata L.) and Sea Bass (Dicentrarchus labrax L.). In this study we try to fill this lack, determining dimensions, water adsorption properties, floating times and settling velocities of a typical growing sequence of pellets for the species mentioned above, under defined laboratory conditions reproducing... |
| Tipo: Text |
Palavras-chave: Waste dispersion; Mediterranean; Feed pellets; Water adsorption; Floating time; Settling velocity. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-4968.pdf |
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