Balances of carbon, nitrogen and phosphorus in multi-spacial and multi-trophic systems with nile tilapia and amazon river prawn.

• Grant number: 12/18593-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: January 01, 2013
• End date: March 10, 2015
• Field of knowledge: Agronomical Sciences - Fishery Resources and Fishery Engineering - Aquaculture
• Principal Investigator: Wagner Cotroni Valenti
• Grantee: Fernanda Seles David
• Host Institution: Centro de Aquicultura (CAUNESP). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The use of substrates in aquaculture systems provides additional spaces for periphyton settlement, which accumulates carbon, nitrogen and phosphorus. Thus, increasing periphyton community increases the availability of minerals for reared species. The analysis of balance is an important tool to best understand the nutrients cycle in the system by measuring the output of these nutrients and subtracting from the inputs and, and to assess and quantify these elements, was designed an experiment with twelve natural pounds stocked with 22 juveniles/m2 of freshwater prawn (Macrobrachium amazonicum) and 1.1 juveniles/m2 of tilapia (Oreochromis niloticus). These species have different feeding habits and spatial distribution, what makes them very appealing for a polyculture system. Dry extruded feed was offered twice a day for tilapias only, which represented the input of allochthonous organic matter. The experimental design was completely randomized with four replications and three treatments: (1) without substrate; (2) with substrate made of geotextile blanket; (3) with substrate made of bamboo. It was collected samples of water from ponds and rain, sediment, feed, periphyton, gas (dissolved in the water and released from sediment), and stocked and harvested animals to determine the carbon, nitrogen and phosphorus content. Thus, will be possible to determine those elements in each compartment biosystem. After the trial period ended, will be conducted analyzes of samples and then analyzing the data.

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RODRIGUES, CAIO G.; ENGLE, CAROLE; GARCIA NETO, BALTASAR F.; AMORIM, RAFAEL V.; VALENTI, WAGNER C.. The effect of choice of targeted market, production scale, and land tenure on the economics of integrated tilapia-prawn production. AQUACULTURE ECONOMICS & MANAGEMENT, v. 23, n. 2, p. 204-217, APR 3 2019. (12/18593-5)

DAVID, FERNANDA S.; PROENCA, DANILO C.; FLICKINGER, DALLAS L.; BUENO, GUILHERME WOLFF; VALENTI, WAGNER C.. Carbon budget in integrated aquaculture systems with Nile tilapia (Oreochromis niloticus) and Amazon river prawn (Macrobrachium amazonicum). AQUACULTURE RESEARCH, JUN 2021. (19/07948-6, 12/18593-5)

DAVID, FERNANDA S.; PROENCA, DANILO C.; VALENTI, WAGNER C.. Phosphorus Budget in Integrated Multitrophic Aquaculture Systems with Nile Tilapia, Oreochromis niloticus, and Amazon River Prawn, Macrobrachium amazonicum. JOURNAL OF THE WORLD AQUACULTURE SOCIETY, v. 48, n. 3, p. 402-414, JUN 2017. (12/18593-5)

DAVID, FERNANDA S.; PROENCA, DANILO C.; VALENTI, WAGNER C.. Nitrogen budget in integrated aquaculture systems with Nile tilapia and Amazon River prawn. AQUACULTURE INTERNATIONAL, v. 25, n. 5, p. 1733-1746, OCT 2017. (12/18593-5)

DAVID, FERNANDA S.; PROENCA, DANILO C.; FLICKINGER, DALLAS L.; BUENO, GUILHERME WOLFF; VALENTI, WAGNER C.. arbon budget in integrated aquaculture systems with Nile tilapia (Oreochromis niloticus) and Amazon river prawn (Macrobrachium amazonicum. AQUACULTURE RESEARCH, v. 52, n. 11, p. 5155-5167, NOV 2021. (12/18593-5, 19/07948-6)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

DAVID, Fernanda Seles. Balanço de nitrogênio, fósforo e carbono em sistema multiespacial e multitrófico de cultivo de tilápia-do-Nilo e camarão-da-Amazônia. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.