Consulta: creatorFacets:"Alliot, E"
Registros recuperados: 2
Data/hora: 17/06/2024 11:10:35

Benthic microphytic activity at 2 mediterranean shellfish cultivation sites with reference to benthic fluxes
Provedor de dados: 5
Autores: Barranguet, C; Alliot, E; Plantecuny, Mr.
Microphytobenthos activity in coastal waters has been studied at two shellfish fanning sites: an oyster farm in Thau lagoon and a mussel farm in Carteau bay (NW Mediterranean coast). In both cases, shellfish are cultivated on ropes hanging from rigid structures (tables) in shallow waters (- 5 m). An ''under table'' station and an ''outside table'' (reference) station were chosen at each site. Oxygen and ammonia fluxes at the water-sediment interface were measured in dark and transparent benthic chambers. Chlorophyll a concentrations were two- to threefold higher in ''under table'' sediments than outside (260 mg Chl a m(-2) under the oyster table, 436 mg Chl a m(-2) under the mussel table in winter). Net oxygen fluxes were negative at all stations, except...
Tipo: Text
Palavras-chave: MICROPHYTOBENTHOS; FLUXES; PRIMARY PRODUCTION; SHELLFISH CULTIVATION.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00098/20884/18498.pdf

Measurement of benthic nutrient fluxes in mediterranean shellfish farms - a methodological approach
Provedor de dados: 5
Autores: Grenz, C; Plantecuny, Mr; Plante, R; Alliot, E; Baudinet, D; Berland, B.
Benthic chambers were used to investigate fluctuations in nutrient fluxes and oxygen changes when comparing two benthic biota. Muddy sediments located under mussel-cultivation ropes were compared with a station outside the mussels' influence. Biodeposition from the mussels results in a drastic increase in the nutrient fluxes. A standard procedure is established in order to give reliable comparisons between stations and seasons: as a rule it should include six-hour periods of incubation with sampling intervals of two hours and at least four benthic chambers - preferably six - at each station.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21373/18973.pdf