| Texto completo | |
| Autor(es): |
Belmudes, Dalton
;
Boaratti, Andre Z.
;
Mantoan, Paulo V. L.
;
Marques, Aline M.
;
Ferreira, Julia R. C.
;
Moraes-Valenti, Patricia
;
Flickinger, Dallas L.
;
Valenti, Wagner C.
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | FISHES; v. 10, n. 10, p. 15-pg., 2025-09-26. |
| Resumo | |
This study quantified nitrogen (N) inputs by water, feed, animals, and atmospheric gas and outputs by water, harvested animals, sediments, and gas emissions in earthen ponds used for the monoculture and integrated cultures of yellow-tail lambari (Astyanax lacustris), Amazon River prawn (Macrobrachium amazonicum), and curimbata (Prochilodus lineatus), and evaluated whether epibenthic species improve N retention in harvested biomass. Three systems with four replicates were tested, lambari monoculture (L), lambari-prawn (LP), and lambari-prawn-curimbata (LPC), stocked at 50, 25, and 13 individuals m(-2), respectively. Feed N was the major input (67-75%), followed by inlet water (19-30%). Harvested biomass represented 20-23% of total outputs, sediments 25-33%, and gaseous emissions 7-29%, while outlet water contributed <3%. N lost through seepage was highest in L (70.5 +/- 22.9 kg N ha(-1)). N-2 ebullition increased with benthic species, from 10.4 +/- 10.6 kg N ha(-1) (L) to 72.1 +/- 32.4 kg N ha(-1) (LPC). N recovered in lambari was 43.2 +/- 7.4 kg N ha(-1) in LPC, 36 +/- 8.6 in L, and 33 +/- 5.6 in LP. Considering all species, recovery of dietary N increased from 20.0 +/- 4.3% (L) to 35.0 +/- 5.9% (LPC), and recovery from all inputs rose from 13.0 +/- 2.2% to 18.0 +/- 3.4%. Integrated systems, particularly LPC, enhanced N retention in biomass and reduced environmental losses. (AU) | |
| Processo FAPESP: | 18/23993-9 - Balanço de energia no sistema de produção do lambari em monocultivo e em cultivos integrados com camarão-da-amazônia e curimbatá |
| Beneficiário: | Paulo Victor Leme Mantoan |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |
| Processo FAPESP: | 18/10363-7 - Balanço de nitrogênio no cultivo do lambari-do-rabo-amarelo em monocultivo e em cultivos integrados com o camarão-da-amazônia e com o curimbatá |
| Beneficiário: | Dalton Belmudes Neto |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |
| Processo FAPESP: | 18/15702-4 - Determinação das fontes de alimento em monocultivo de lambari-do-rabo-amarelo (Astyanax lacustris) e em cultivo integrado com camarão-da-amazônia (Macrobrachium amazonicum) e curimbatá (Prochilodus lineatus), utilizando isótopos estáveis |
| Beneficiário: | Andre Zuffo Boaratti |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |