Comparative life cycle assessment (LCA) of Tilapia in two production systems: semi-intensive and intensive

Yacout, Dalia M. M.; Soliman, Naglaa F.; Yacout, Mohamed

doi:10.1007/s11367-016-1061-5

Cited by 60 publications

(35 citation statements)

References 26 publications

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“…It should be noted though that there is significant variation in estimated the environmental impacts of food products, mainly caused by differences in; farming systems (e.g. Cao et al, 2011;Samuel-Fitwi et al, 2013;Yacout et al, 2016;Zehetmeier et al, 2014), production practices adopted in various countries and regions (e.g. Dangal et al, 2017;Pelletier et al, 2009;Ziegler, Hornborg, Valentinsson, et al, 2016), types of product or species (e.g.…”

Section: Discussionmentioning

confidence: 99%

A comparison of environmental and economic sustainability across seafood and livestock product value chains

et al. 2020

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Section: Discussionmentioning

confidence: 99%

A comparison of environmental and economic sustainability across seafood and livestock product value chains

et al. 2020

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“…The feed impact on aquaculture sustainability is poorly documented by emergy assessment. Some results by Life Cycle Analysis (LCA), another method of measuring sustainability, also show that feed is the main factor that negatively impacts aquaculture production (Wilfart et al, 2013;Yacout et al, 2016).…”

Section: Discussionmentioning

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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“…In contrast, fish feed formulation is said to be the most important contributor in fish production. Hence, the substitution of ingredients in feed formulation would be significant for reducing the environmental impacts resulting from fish feed [17,23].…”

Section: Analysis On Feeding Ingredientsmentioning

confidence: 99%

Life Cycle Assessment of Nile Tilapia (Oreochromis niloticus) Farming in Kenyir Lake, Terengganu

2020

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This study presents results from a life cycle assessment (LCA) conducted following the CML-IA method on caged aquaculture of Nile tilapia (Oreochromis niloticus) species at Como River, Kenyir Lake, Terengganu, Malaysia. In this study, the greenhouse gas (GHG) estimation, calculated based on the Intergovernmental Panel on Climate Change (IPCC) 2006 Guidelines, showed that 245.27 C eq (1.69 Kg) of nitrate oxide (N 2 O) was emitted from the lake. The determination of LCA was conducted using several inputs, namely N 2 O, compositions of fish feed, materials used to build fish cages (infrastructure), main materials used during operation and several databases, namely Agri-footprint, Ecoinvent 3, European Reference Life-Cycle Database (ELCD), and Industry Data 2.0. The results show that feed formulation is the major contributor to potential environmental impact in aquaculture farming, at 55%, followed by infrastructure at 33% and operation at 12%. The feed formulation consisting of 53% broken rice contributed to marine ecotoxicity (MET), while those consisting of 44% fish meal and 33% soybean meal contributed to abiotic depletion (ABD) and global warming (GW), respectively. It is recommended that the percentage of ingredients used in feed formulation in fish farming are further studied to reduce its impacts to the environment.

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Comparative life cycle assessment (LCA) of Tilapia in two production systems: semi-intensive and intensive

Cited by 60 publications

References 26 publications

A comparison of environmental and economic sustainability across seafood and livestock product value chains

A comparison of environmental and economic sustainability across seafood and livestock product value chains

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

Life Cycle Assessment of Nile Tilapia (Oreochromis niloticus) Farming in Kenyir Lake, Terengganu

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