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Titolo:
WATER-TREATMENT OF LAND-BASED FISH FARM EFFLUENTS BY OUTDOOR CULTURE OF MARINE DIATOMS
Autore:
LEFEBVRE S; HUSSENOT J; BROSSARD N;
Indirizzi:
IFREMER,CNRS,CTR RECH ECOL MARINE & AQUACULTURE,BP 5 F-17137 LHOUMEAUFRANCE IFREMER,CNRS,CTR RECH ECOL MARINE & AQUACULTURE F-17137 LHOUMEAU FRANCE
Titolo Testata:
Journal of applied phycology
fascicolo: 3, volume: 8, anno: 1996,
pagine: 193 - 200
SICI:
0921-8971(1996)8:3<193:WOLFFE>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
SKELETONEMA-COSTATUM; PHYTOPLANKTON; SILICATE;
Keywords:
WATER TREATMENT; MARICULTURE; EFFLUENTS; PHYTOPLANKTON; DIATOMS; SKELETONEMA; CHAETOCEROS; MASS CULTURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
S. Lefebvre et al., "WATER-TREATMENT OF LAND-BASED FISH FARM EFFLUENTS BY OUTDOOR CULTURE OF MARINE DIATOMS", Journal of applied phycology, 8(3), 1996, pp. 193-200

Abstract

The feasibility of using fish farm effluents was evaluated as a source of inorganic nutrients for mass production of marine diatoms. Batch cultures were conducted from May to July 1995 in 16-L outdoor rectangular tanks, homogenized by gentle aeration (0.2 L(air) L(-1) h(-1)). The effluents from the two fish farms studied were both characterized byhigh concentrations of inorganic materials (NH4-N, PO4-P, Si(OH)(4)-Si) and were shown to support production of marine diatoms. Moreover, periodic measurements of inorganic matter levels in the cultures showedthat clearance was efficacious (90% in 3-5 days). Water purification efficiency and culture productivity were further increased through appropriate nutrient balancing. When effluents were limited in silicate, addition of Na2SiO3 induced a significant increase in both diatom biomass and nutrient removal efficiency. In this case, up to 720000 cell mL(-1) were produced dominated by Skeletonema costatum. By contrast, ineffluents loaded with silicate, adjustment of the N:P:Si ratio by NH4-N and PO4-P supplementation then gave increased biomass production. In this case, the maximum cell density found was 450000 cell mL(-1), dominated by Chaetoceros spp.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 19:47:59