Evaluation of energy-economic and environmental consequences in different fish production systems using a life cycle assessment approach

• Published in: Environmental and sustainability indicators 2023-06, Vol.18, p.100231, Article 100231
• Main Authors: Rasooli, Mohsen, Beheshti, Babak, Gholami Parashkoohi, Mohammad, Ghahdarijani, Mohamad
• Format: Article
• Language: English
• Subjects: Economic productivity; Energy use; Environmental impacts; Fish production
• ISSN: 2665-9727; 2665-9727
• DOI: 10.1016/j.indic.2023.100231

The present study assessment of energy use, economic productivity and environmental life cycle assessment (LCA) for different production of fish systems in Alborz province. Productivity indicators and the provision of necessary solutions in order to improve the values of energy and economic indices in fish breeding ponds have been implemented. For this purpose, information related to the two fish systems sites was collected by a questionnaire and direct reference to the site owners and administrators and reference to the records. Then, the amount of energy input and output of cold-water and hot-water fish was calculated. The results showed energy ratio (ER) (2.24), energy productivity (EP) (0.04 kg MJ−1), energy intensity (EI) (26.83 MJ kg−1) and net energy gain (NEG) (33222.16 MJ kg−1) of cold-water fish were reported to be more favorable. According to these results, among energy use inputs, fish feed and electricity are two factors that proper management of their consumption increases energy efficiency. The results of economic analysis showed the benefit-to-cost ratio was positive for cold-water fish (1.54) and hot-water fish (2.45). Productivity for cold-water and hot-water fish was 0.58 Kg $−1 and 0.52 Kg $−1, respectively. LCA results showed that damage assessment of human health, ecosystem quality and resources for cold-Water and hot-water fish production are (0.00041 and 0.00045) DALY, (4.04E-08 and 4.61E-08) species.yr and (0.076 and 0.087) USD2013, respectively. The results of cumulative exergy demand (CExD) also indicated that the energy form of non-renewable, fossil is significant for both types of fish. •Energy use analysis reported in different fish production systems.•Life cycle analysis was done by ReCiPe2016 method.•Electricity and fish feed are two factors that were significant in this study.•The environmental impacts were shown for hot-water higher than cold-water systems.