Decoupled FLOCponics systems as an alternative approach to reduce the protein level of tilapia juveniles' diet in integrated agri-aquaculture production

Pinho, Sara M.; Lima, Jéssica Pacheco de; David, Luiz H.; Oliveira, Magdiel S.; Goddek, Simon; Carneiro, Dalton José; Keesman, Karel J.; Portella, Maria Célia

doi:10.1016/j.aquaculture.2021.736932

Cited by 15 publications

(4 citation statements)

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“…We hypothesize that the presence of solids in the AE could play a role in the availability of nutrients through mineralization over time. Additionally, the biological floc which is characteristic of the biofloc system could be a better source of nutrients than clear water systems, as was demonstrated by Pinho et al [15] which previously led to better growth of lettuce in a biofloc tilapia system [3]. We anticipated that pine bark, due to its organic nature would lead to enhanced mineralization and thus nutrient availability than perlite which is inorganic in such biofloc systems.…”

Section: Foliar Nutrient Analysis Of Cucumbers Affected By the Substrate And Densitymentioning

confidence: 80%

Performance of Greenhouse-Grown Beit Alpha Cucumber in Pine Bark and Perlite Substrates Fertigated with Biofloc Aquaculture Effluent

et al. 2021

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Using aquaculture effluent (AE) to fertigate plants is gaining popularity worldwide. However, in substrate-based systems, the choice of substrate is essential due to their effects on crop productivity. Differences in the retention of nutrients by substrates makes it necessary to assess suitability for use in AE. This study was conducted from January to July in 2016 and September to October in 2019 to evaluate greenhouse-grown Beit Alpha cucumber (Cucumis sativus L. ’Socrates’) performance fertigated with AE in pine bark or perlite substrates, grown either as one plant or two plants per pot. A 2 × 2 factorial arrangement in a randomized complete block design with four replications for each season was used. The substrate effect on yield in 2016 depended on the density and season. The pooled yield over seasons in 2016 showed pine bark had a significantly higher yield than perlite by 11% in one plant per pot but lowered by the same amount in two plants per pot. In 2019, pine bark significantly reduced the leachate pH in both plant densities and reduced the leachate EC by about 15% in two plants per pot. The foliar boron was occasionally below sufficiency whilst manganese was above sufficiency in pine bark due to its inherently low pH. We conclude that the effect of the substrates on cucumber yield fertigated with AE is dependent on the season and the number of plants per pot. Therefore, due to the local availability of pine bark, it could be a potential substitute for perlite especially when using one plant per pot for AE. In addition, pine bark could be used as an intermediate substrate to reduce the pH in AE for downstream use.

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Section: Foliar Nutrient Analysis Of Cucumbers Affected By the Substrate And Densitymentioning

confidence: 80%

Performance of Greenhouse-Grown Beit Alpha Cucumber in Pine Bark and Perlite Substrates Fertigated with Biofloc Aquaculture Effluent

et al. 2021

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“…Finally, it should be mentioned that as FLOCponics is a novel and emergent system, some papers were published after the settled literature search period for this review 176‐178 and many others are expected to be published in the next few years. It is, however, noteworthy that our group has been advancing research in this field and recently published the results of a study in which decoupled layout allowed reduction of critical issues related to FLOCponics systems, leading to similar lettuce growth and an 8% reduction in the Nile tilapia dietary crude protein compared to decoupled aquaponics using RAS 177 …”

Section: Challenges Of Flocponics Systemsmentioning

confidence: 99%

FLOCponics: The integration of biofloc technology with plant production

Pinho

Lima

David

et al. 2021

Reviews in Aquaculture

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FLOCponics is an alternative type of aquaponics that integrates biofloc technology (BFT) with soilless plant production. The aims of this paper are to present a detailed overview of the FLOCponics system's designs and performance, discuss their sustainability, highlight the current challenges, and give directions for future research. Data sources include papers containing the keywords bioflocs and hydroponics, aquaponics and/or plant production. In view of the small number of publications and the lack of standardization in experimental design and system setup, it was concluded that FLOCponics is still in its initial research stage. With respect to the animal and plant yields in FLOCponics, inconsistent results were found. Some investigations presented better or similar yield results in this system compared to traditional cultures, while others found the opposite. One of the key challenges of using FLOCponics is the effective control of solids. Refining the system's design was the main recommended improvement. Moreover, this paper highlights that the commercial application of FLOCponics will require extensive research that clarifies its technical and economic aspects, originating from experimental or pilot‐scale setups with characteristics similar to commercial production. This review provides and discusses information that can be useful for the effective development of FLOCponics, guiding further research to make FLOCponics commercially feasible and thus contributing to sustainable aquaculture production.

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“…In this sense, integrated multitrophic aquaculture is one of the most promising alternatives, as it concatenates the production of two or more species belonging to different trophic levels, all framed in the concept of the circular economy, making energy use more efficient and minimizing environmental impact (Knowler et al, 2020;Martinez-Cordova et al, 2022). Some of the most representative types of integrated multitrophic aquaculture include polyculture (Martıńez-Porchas et al, 2010), biofloc technology (systems based on microbial bioaugmentation as edible biomass) (Emerenciano et al, 2017), aquaponics (König et al, 2018, and recently, the integration of biofloc technology with soilless plant production, also known as FLOCponics (Pinho et al, 2021).…”

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confidence: 99%

Editorial: Advances and perspectives in integrated multi-trophic aquaculture

et al. 2023

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Aquaculture continues to be the agroindustry with the highest growth rate worldwide. While fisheries (in continental or marine waters) did not grow in practical terms over the last three decades, aquaculture production levels quadrupled from 1990 to 2020; furthermore, aquaculture represents around 50% of current world production of fish for direct human consumption, while also making a significant contribution to production of crustaceans, mollusks, and plants (FAO, 2022).Despite its undeniable contribution to the production of food, the creation of employment, and in general, the development of countries, aquaculture can produce negative impact when it is not developed sustainably. In this regard, the main form of impact lies in the adverse footprint of effluents on ecosystems, in turn causing selfdestructive effects for the activity itself, since (in addition to generating negative perceptions among society and the relevant government), the consequences, such as poor water quality and the spread of diseases, end up devastating production and profitability (Cao et al., 2007;Martıńez-Coŕdova et al., 2009;Martinez-Porchas and Martinez-Cordova, 2012).A significant advance toward sustainability in aquaculture could involve the integration of more than one species in production systems. In this sense, integrated multitrophic aquaculture is one of the most promising alternatives, as it concatenates the production of two or more species belonging to different trophic levels, all framed in the concept of the circular economy, making energy use more efficient and minimizing environmental impact (Knowler et al., 2020;Martinez-Cordova et al., 2022). Some of the most representative types of integrated multitrophic aquaculture include polyculture (Martıńez-Porchas et al., 2010), biofloc technology (systems based on microbial bioaugmentation as edible biomass) (Emerenciano et al., 2017), aquaponics (König et al., 2018, and recently, the integration of biofloc technology with soilless plant production, also known as FLOCponics (Pinho et al., 2021).

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Decoupled FLOCponics systems as an alternative approach to reduce the protein level of tilapia juveniles' diet in integrated agri-aquaculture production

Cited by 15 publications

References 41 publications

Performance of Greenhouse-Grown Beit Alpha Cucumber in Pine Bark and Perlite Substrates Fertigated with Biofloc Aquaculture Effluent

Performance of Greenhouse-Grown Beit Alpha Cucumber in Pine Bark and Perlite Substrates Fertigated with Biofloc Aquaculture Effluent

FLOCponics: The integration of biofloc technology with plant production

Editorial: Advances and perspectives in integrated multi-trophic aquaculture

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