Data/hora: 19/05/2024 20:49:05

Biblioteca(s): 	Embrapa Amapá.	
Data corrente: 	16/11/2021	
Data da última atualização: 	25/11/2021	
Autoria: 	LIMA, J. de F.; BASTOS, A. M.; SILVA DUARTE, S. S.; SANTOS, U. R. A. dos.	
Afiliação: 	JO DE FARIAS LIMA, CPAF-AP; ARGEMIRO MIDONÊS BASTOS, IFAP; STING SILVA DUARTE, UNIFAP. PPG em Biodiversidade Tropical; UCLÉDIA ROBERTA ALBERTO DOS SANTOS, UFSC. PPG em Aquicultura.	
Título: 	Are artificial semi-dry wetlands efficient in wastewater treatment from different fish densities and for lettuce production?	
Ano de publicação: 	2021	
Fonte/Imprenta: 	International Journal of Environmental Science and Technology, Oct. 2021.	
DOI: 	https://doi.org/10.1007/s13762-021-03703-6	
Idioma: 	Inglês	
Conteúdo: 	This study aimed to determine artifcial semi-dry wetlands' performance to wastewater treatment from fish farming and Lactuca sativa production in an aquaponics system. This trial model observed the effects of different stocking biomass on the growth rate of Colossoma macropomum and yield of two L. sativa varieties. A factorial design consisting of three fish density treatments in quadruplicate and two Lettuces variety was used. Nine hundred and sixty fingerlings with 8.35±0.91 g were stocked at three stocking biomass treatments in quadruplicate: 40 fingerlings or 334 g m-3; 80 fingerlings 668 g m-3; 120 fingerlings or 1002 g m-3. Delice American Lettuce and Purple Crested Lettuce were cultured in the semi-dry wetlands. The fnal mass (g), consumed food, feed conversion ratio, and yield of fngerling were statistically diferent between the tested densities, but survival did not. The artificial semi-dry wetlands were efcient on water treatment and the recovery of nutrients in all fsh densities trials, and it has potential as support for lettuce production. The recovery of nutrients was shown on the increment of the number of leaves, total fresh mass (g), and lettuces yield by area (kg m-2) in both varieties of plants tested. Precocious fowering in 30% of lettuce varieties, incidence of mealybug and whitefly, temperature and defciency of calcium and magnesium were factors that may have compromised the full lettuce development. The aquaponics system eficiently treated the fsh efuent at the densities tested, being appropriate for fish farming and lettuces production.	
Palavras-Chave: 	Biodiversity preservation; Intensive production; Sustainability of water.	
Thesagro: 	Colossoma Macropomum; Tambaqui.	
Thesaurus Nal: 	Water treatment.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/227809/1/CPAF-AP-2021-Are-artificial-semi-dry.pdf	
Registro original: 	Embrapa Amapá (CPAF-AP)	
Exemplares: 	CPAF-AP - (18396-1) - UPC - AP - DD -  -  -  - DIS