Effects of white shrimp (Litopenaeus vannamei) and tilapia nilotica (Oreochromis niloticus var. Spring) in monoculture and co-culture systems on water quality variables and production in brackish low-salinity water earthen ponds during rainy and dry seasons

Abstract

Aim of study: To determine the effects of white shrimp (Litopenaeus vannamei) and tilapia nilotica (Oreochromis niloticus var. Spring) in monoculture and co-culture on water quality variables and production in earthen ponds during dry and rainy seasons.Area of study: A shrimp farm (total area 20 ha) at Chiripa, San Blas Nayarit, Northwest coast of Mexico (21° 37' 34.53 " N; 105° 18' 16.31" W).Material and methods: Two production cycles were performed in a completely randomized design consisting of two treatments and three replications each during rainy season (September-December) and dry season (February-May). Shrimp was the main crop and tilapia the secondary species.Main results: White shrimp (10 org/m2) can be co-cultured with Nile tilapia at a stocking high density (4 org/m2), leading to improved water quality and better utilization of nutrients in dry season than in rainy season. However, the shrimp’ highest weight was recorded in the tilapia-shrimp co-culture ponds during rainy season due to higher water temperature and better quality of live food. The mean individual weight, biomass and survival of the shrimp, in co-culture ponds were greater than those of the shrimp monoculture, in the two seasons studied.Research highlights: There was a trend towards greater concentration of nutrients in the water of the monoculture ponds and, lower dissolved oxygen and higher BOD5 in co-culture ponds in the dry season than in the rainy season.

Feasibility and compatibility of polyculture of Litopenaeus vannamei and Macrobrachium rosenbergii in the intertidal ponds

“…The variables of temperature, pH and DO during the experiment were within the appropriate intervals for the growth of tilapia and shrimp in monoculture and polyculture. The concentration of TN and TP showed no significant differences among different culture systems in this study, which was in agreement with the findings of Juárez‐Rosales et al, (2019) who recorded the same TN and TP between monoculture and polyculture system. in water originates from the faeces and excessive feed, damages the gills, increases oxygen consumption and affects shrimp growth (Chen & Kou, 1992).…”

“…The bulk of studies indicate that polyculture systems can influence the growth and yield of aquatic organisms (Fitzsimmons & Shahkar, 2017; Juárez‐Rosales et al, 2019; Ribeiro et al, 2012; Yuvaraj et al, 2009). The co‐culture ponds of shrimp and tilapia ( Oreochromis niloticus ) displayed higher biomass of the shrimp than those of the shrimp monoculture (Juárez‐Rosales et al, 2019). Polyculture Litopenaeus stylirostris and Siganus lineatus can also significantly increase total yield Luong et al, 2014).…”

EFFECTS OF POLY CULTURE SHRIMP, LitopenaeusvannameiWITH KEELED MULLET, Liza carinataAT DIFFERENT DENSITIES COMPARED TO THE MONOCULTURE SYSTEM ON PHYSICO-CHEMICAL WATER QUALITY

“…Improving pond water quality by controlling phytoplankton growth, reducing the accumulation of organic matter, antibacterial effect and the prevalence of viruses (Jatobá et al, 2011). Juarez-Rosales et al (2019) reported that the white shrimp (10 org/m 2 ) can be co-cultured with Nile tilapia at a stocking high density (4 org/m 2 ), leading to improved water quality.…”

Factores técnicos del manejo de la calidad agua y sedimento en policultivo camarón-tilapia en estanques

“…Estos beneficios se han logrado en los tres sistemas de co-cultivo conocidos (directo, en jaula y en co-cultivo integrado); otros autores resumen las ventajas en la disminución de los impactos ecológicos, las mejoras en el rendimiento y en la calidad del agua (24); de manera más específica y bajo determinadas condiciones, favorece la retención de nutrientes y disminuye de manera importante el nitrógeno que generan los cultivos acuícolas (1,28). La tilapia al cultivarla con camarones, juega un rol importante en la reducción de la biomasa de fitoplancton y promueve microalgas biorremediadoras (25).…”

“…En estudios se ha encontrado que es menor la diferencias en la sobrevivencia de la tilapia en monocultivo (84-87.6%) y policultivo (91.2-100%) en estanques de tierra (24). Los estanques de tierra naturales con aguas de alta calidad y baja salinidad permiten la sostenibilidad de una mayor densidad de población de tilapia (4 org/m 2 ) que los sistemas (Tabla 2) o estanques que carecen de sustrato (1.2 org/m 2 ) en el fondo (tanques de fibra de vidrio o cemento) (tabla 2) (24). En términos generales el policultivo tilapia-camarón tiene mayores ventajas técnicas en cultivos extensivos y semi-intensivos a nivel comercial.…”