Periphyton-based cage culture of Nile tilapia: An interesting model for small-scale farming

Garcia, Fabiana; Sabbag, Omar Jorge; Kimpara, Janaina Mitsue; Romera, Daiane Mompean; Sousa, N.S.; Onaka, Eduardo Makoto; Ramos, Igor Paiva

doi:10.1016/j.aquaculture.2017.07.024

Cited by 17 publications

(10 citation statements)

References 17 publications

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“…Nutrition-wise, periphyton has a long history of supporting fish production worldwide, as seen in culture ponds of freshwater fish like tilapia 32 – 34 , carp 35 , 36 , mosquitofish 37 and shrimps 33 , 38 , 39 and in brackish-water culture ponds for mullets 40 and milkfish 41 . In some cases, application of periphyton technology in culture ponds resulted in as much as a 40% saving in commercial aquafeed 42 .…”

Section: Introductionmentioning

confidence: 99%

Fishmeal replacement by periphyton reduces the fish in fish out ratio and alimentation cost in gilthead sea bream Sparus aurata

Savonitto

Barkan

Harpaz

et al. 2021

Sci Rep

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Aquaculture threatens natural resources by fishing down the sea to supply fishmeal. Alternative protein sources in aquafeeds can provide a solution, particularly those that are waste from other operations and thereby reduce feed production costs. Toward this goal, we examined the waste biomass of marine periphyton from biofilters of an integrated multi-trophic aquaculture (IMTA) system as a replacement for fishmeal in diets of gilthead seabream (Sparus aurata). Four isoproteic (41%) and isolipidic (16.7%) aquafeeds were formulated with increased content of periphyton and a corresponding decrease in fishmeal from 20 to 15, 10, or 0%. The growth and biochemical content of seabream fingerlings (initial body weight 10 g) were examined over 132 days. Replacing 50% of fishmeal by waste periphyton improved feed conversion ratio (1.2 vs. 1.35 in the control diet) without harming fish growth. The complete replacement of fishmeal with periphyton resulted in 15% slower growth but significantly higher protein content in the fish flesh (59 vs. 52% in the control diet). Halving fishmeal content reduced feed cost by US$ 0.13 kg−1 feed and saved 30% in the cost of conversion of feed to fish biomass (US$ 0.58 kg−1 produced fish vs. $0.83 in the control diet). Finally, the total replacement of fishmeal by waste periphyton in the diet reduced the fish in—fish out ratio to below 1 (0.5–0.9) as compared to 1.36 in the control diet. Replacing fishmeal with on-farm produced periphyton minimizes aquaculture footprint through the removal of excess nutrients in effluents and the use of waste biomass to reduce the ‘fish in’ content in aquafeeds and fish production costs. The present study demonstrates the great practical potential of this dual use of marine periphyton in enhancing the circular economy concept in sustainable fish production.

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Section: Introductionmentioning

confidence: 99%

Fishmeal replacement by periphyton reduces the fish in fish out ratio and alimentation cost in gilthead sea bream Sparus aurata

Savonitto

Barkan

Harpaz

et al. 2021

Sci Rep

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“…The experiment details are described in Garcia et al (2016). The production data used were obtained from Garcia et al (2016) and the economics data from Garcia et al (2017) (Table 1), all these data were submitted to the appropriate statistical analysis (two-way ANOVA) by these authors and represent real situations of commercial production.…”

Section: Systems Descriptionmentioning

confidence: 99%

“…However, intensive production of tilapia in cages prevails in São Paulo State, which traditionally employs high stocking densities (>80 kg/m 3 ) and large amounts of feed to achieve high productivity in small cages (Marengoni, 2006). Sometimes this type of farming has caused undesirable consequences, such as accumulation of nutrients in the sediment (Mallasen et al, 2012), the high cost of inputs for the manufacturing of feed (Ayroza et al, 2011;Garcia et al, 2017), outbreaks of diseases and the consequent use of therapeutic products which can result in residue accumulation in the environment and in the fish (Garcia et al, 2013;Monteiro et al, 2016;Maciel et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Improving the sustainability of tilapia cage farming in Brazil: An emergy approach

David

Pinho

Garcia

2018

Journal of Cleaner Production

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a b s t r a c tThe accelerated and disorderly expansion of aquaculture can lead to economic, social, and environmental problems. In this sense, it is necessary to prioritize the adoption of practices that aim for sustainable production. The aims of the present study were to identify the contributions from nature and economy in the system of tilapia cage farming. In addition, emergy accounting was utilized to evaluate whether the use of periphyton as a complementary food and the reduction of storage density improve the sustainability of this production system. Three different production managements were evaluated and compared: using traditional stocking density adopted by farmers (80 kg/m 3 ) with 100% of the daily recommended feed and without substrates for periphyton (TRAD); traditional stocking density (80 kg/ m 3 ) with 50% of the daily recommended feed and with substrates for periphyton (TDS); lower density (40 kg/m 3 ) with 50% of the daily recommended feed and with substrates for periphyton (LDS). We calculated using emergy accounting the transformity (Tr), renewability (%R), emergy yield ratio (EYR), emergy investment ratio (EIR), emergy loading ratio (ELR), emergy exchange ratio (EER), and emergy sustainability index (ESI) of the distinct production managements. The results showed that tilapia cage farming is highly dependent on resources from economy, and feed is mainly responsible for this. Thus, the decrease in stocking density and feed rate, combined with the use of periphyton, improved all emergy indices evaluated. This occurred because there was a decrease in the use of resources from economy and increase in the use of renewable natural resources. The study shows through the emergy accounting that the use of periphyton to feed cultured fish combined with a reduction in artificial feed use and a decrease in the stocking density should be encouraged to promote the sustainability on tilapia cage farming.Published by Elsevier Ltd.

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“…Los sustratos artificiales sumergidos en la columna de agua facilitan la formación de bio-películas que promueven la productividad natural (Asaduzzaman et al 2009;Azim et al 2002a;Milstein et al 2008;Thompson et al 2002). Los flóculos perifíticos presentan altos contenidos de proteína, ácidos grasos y vitaminas que contribuyen a satisfacer los requerimientos de los peces y mejorar los indicadores de productividad y parámetros ambientales (García et al 2011;Garcia et al 2017;Voltolina et al 2013).…”

Section: Introductionunclassified

Uso de perifiton en un sistema de policultivo en agro acuicultura integrada en la comunidad indígena de Jimaín (Colombia)

Durán-Izquierdo

Mindiola-Romo

Wills-Franco

et al. 2021

Rev. Med. Vet. Zoot.

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Los Sistemas de Agro Acuicultura Integrada (SAAI) han sido estudiados como opciónpara la producción de pescado en comunidades con recursos limitados. Así mismo, eluso de perifiton se ha convertido recientemente en una alternativa viable por el aportede alimento natural de bajo costo. El objetivo de este estudio fue evaluar el efecto delperifiton sobre el desempeño productivo del policultivo Piaractus sp. (cachama híbrida)y Prochilodus magdalenae (bocachico) en SAAI en la comunidad Indígena de Jimaín,Colombia. Se sembraron 1,5 alevinos de cachama híbrida y 1,5 bocachicos/m2, con pesopromedio de 0,49 ± 0,14 g y 1,83 ±1,61 g respectivamente, en seis estaques en tierra de90 m2, tres de los cuales contaron con varas de madera (3 varas/m2) para la fijación deperifiton. La duración del cultivo fue de 135 días. Los tratamientos (CS: con sustratoy SS: sin sustratos) recibieron una dieta suplementaria dos veces al día, calculada comoporcentaje de la biomasa con ajuste quincenal. Se realizaron biometrías quincenales. Losdatos productivos por especie y para el policultivo se evaluaron mediante ANOVA conun modelo lineal general (p < 0,05). Los datos de peso (g) y longitud estándar (cm) porespecie se evaluaron mediante un modelo mixto de medidas repetidas. No se encontraronefectos del sustrato sobre los parámetros productivos analizados tanto para cada especie,como para el policultivo. Se presentó interacción significativa para el peso del bocachicoel día 90 (CS: 74,7 y SS: 47,1). Según los resultados obtenidos, la utilización de perifitony el manejo en policultivo de especies nativas requiere más estudios.

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Periphyton-based cage culture of Nile tilapia: An interesting model for small-scale farming

Cited by 17 publications

References 17 publications

Fishmeal replacement by periphyton reduces the fish in fish out ratio and alimentation cost in gilthead sea bream Sparus aurata

Fishmeal replacement by periphyton reduces the fish in fish out ratio and alimentation cost in gilthead sea bream Sparus aurata

Improving the sustainability of tilapia cage farming in Brazil: An emergy approach

Uso de perifiton en un sistema de policultivo en agro acuicultura integrada en la comunidad indígena de Jimaín (Colombia)

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