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Sustainability 2017, 9(4), 592; doi:10.3390/su9040592

Evaluation of a Semi-Intensive Aquaponics System, with and without Bacterial Biofilter in a Tropical Location

1
Centro de Investigación y de Estudios Avanzados del IPN-CINVESTAV, Km 6 Antigua Carretera a Progreso, C.P. 97310 Mérida, Mexico
2
Centro Regional Universitario de la Península de Yucatán, Universidad Autónoma Chapingo, Ex Hacienda Temozón Norte, C.P. 97310 Mérida, Mexico
*
Author to whom correspondence should be addressed.
Academic Editor: Shelley Burgin
Received: 25 November 2016 / Revised: 30 March 2017 / Accepted: 7 April 2017 / Published: 12 April 2017
(This article belongs to the Section Sustainable Agriculture, Food and Wildlife)
View Full-Text   |   Download PDF [680 KB, uploaded 12 April 2017]   |  

Abstract

This study compares the aquaponics Nile tilapia (Oreochromis niloticus)—pak choi (Brassica chinensis) system with and without a bacterial biofilter (BF and NBF) in a tropical location. The aim was to determine whether a semi-intensive aquaponics system NBF could offer a production alternative for small-scale farmers in this region, both technically and biologically. The Tilapia aquaponics culture was continuously recirculated and water was added (influent) and removed (effluent) from the plant aquaponics culture every 24 h. Total ammonia nitrogen (TAN) and nitrite nitrogen (NO2-N) were analysed in the plant aquaponics culture influent and effluent. At the end of the experiment the individual fresh total weight, dry total weight, edible weight, height and diameter of the pak choi plants were measured. None of the pak choi variables showed significant differences between treatments. TAN and NO2-N were higher in the NBF influent than in the BF influent. TAN and NO2-N in the effluent of both treatments were similar and lower than in the influent. The plant aquaponics culture therefore works as a biofilter and the NBF aquaponics system could be used for small-scale farmers in the tropics, with easier management and less costs than a BF aquaponics system. View Full-Text
Keywords: aquaculture integrated systems; Nile tilapia; pak choi; biological wastewater treatment; small-scale farmers; tropical aquaculture aquaculture integrated systems; Nile tilapia; pak choi; biological wastewater treatment; small-scale farmers; tropical aquaculture
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Silva, L.; Escalante, E.; Valdés-Lozano, D.; Hernández, M.; Gasca-Leyva, E. Evaluation of a Semi-Intensive Aquaponics System, with and without Bacterial Biofilter in a Tropical Location. Sustainability 2017, 9, 592.

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