Efecto del fotoperiodo y la razon camaron:macroalga en la remoción de nitrogeno amoniacal total por Gracilaria vermiculophylla, en cultivo con Litopenaeus vannamei, sin recambio de agua

Abstract

Efecto del fotoperiodo y la razón camarón:macroalga en la remoción de nitrógeno amoniacal total por Gracilaria vermiculophylla, en cultivo con Litopenaeus vannamei, sin recambio de agua ), N-NO 2 (0.145 ± 0.29 mg L -1 ) y N-NO 3 (3.13 ± 0.73 mg L -1 ) were registered in the biomass rate of 1:8. The highest growth rates of the macroalgae (3.07 ± 1.44% day -1 ) were recorded with 24:00 h photoperiod and biomass ratio 1:8. The highest rate of N incorporation (0.31 ± 0.12 mg N L -1 ) of the macroalgae occurred under the same conditions. Shrimp growth was similar to data reported in traditional recirculation systems. The integration of G. vermiculophylla without water exchange system was able to maintain the TAN and N-NO 2 under levels conditions for the growth of L. vannamei.

Water quality,Vibriodensity and growth of Pacific white shrimpLitopenaeus vannamei(Boone) in an integrated biofloc system with red seaweedGracilaria birdiae(Greville)

“…The TAN and NO 2 ‐N removal by Gracilaria in water with zero exchange has been shown to depend on the photoperiod (16:8 light/dark for TAN and 14:10 light/dark NO 2 ‐N), and the biomass ratio of shrimp:seaweed of 1:8 (Sánchez‐Romero et al . ). In the end of the experiment, the biomass ratios of shrimp:seaweed were 1:1.28 (IBS 2.5), 1:2.75 (IBS 5.0) and 4.36 (IBS 7.5), whereas light intensity was kept at ~1000 lux with a natural photoperiod.…”

“…The poor assimilation of nutrients (nitrogen and phosphorus) by shrimp can be compensated by the presence of red seaweed Gracilaria , which can turn wastes into biomass, significantly improving water quality in traditional systems (Huo, Xu, Wang, Zhang, Zhang, Wu, Chen & He ; Marinho‐Soriano, Azevedo, Trigueiro, Pereira & Carneiro ; Huo, Wu, Chai, Xu, Han, Dong & He ; Robledo, Navaro‐Angulo, Lozano & Freile‐Pelegrin ) and zero‐exchange systems (Sánchez‐Romero, Miranda‐Baeza, López‐Elías, Martínez‐Córdova, Tejeda‐Mansir & Márquez‐Ríos ; Brito, Arantes, Magnotti, Derner, Pchara, Olivera & Vinatea ). Seaweed may also improve shrimp growth and yield in semi‐intensive (Gamboa‐Delgado, Peña‐Rodríguez, Ricque‐Marie & Cruz‐Suárez ; Portillo‐Clark, Casillas‐Hernández, Servín‐Villegas & Magallón‐Barajas ) and intensive systems (Brito, Arantes et al .…”

Effects of two commercial feeds with high and low crude protein content on the performance of white shrimp Litopenaeus vannamei raised in an integrated biofloc system with the seaweed Gracilaria birdiae

“…No effect from the use of an integrated biofloc system was observed on dissolved inorganic nitrogen removal, probably due to a lower photoperiod (12:12 light/dark), and lower biomass rate of shrimp:seaweed (1.27 -1.79) than those used by Sánchez-Romero et al (2013) (12:12 light/dark and shrimp:seaweed 1:8), and higher TSS levels of about 500 mg/L as compared to Brito et al (2016), who used 223 to 253 mg/L.…”

Development of a Model to Simulate Nitrogen Dynamics in an Integrated Shrimp–Macroalgae Culture System with Zero Water Exchange

“…Limited studies in the scientific literature have focused on nitrogen dynamics in integrated recirculating aquaculture systems (RASs) determined by a modeling approach, and most of the related research included different biological and physical conditions than those studied here. Here, a comprehensive model including shrimp, macroalgae, and bacterial populations was developed and calibrated, and the parameters were obtained from an integrated culture of macroalgae and shrimp conducted by the authors Sánchez‐Romero et al (, ) and from parameters found in the literature and calibrated within the reported ranges (Tables and ).…”