Establishing a benchmarking for fish farming - Profitability, productivity and energy efficiency of German, Danish and Turkish rainbow trout grow-out systems

Lasner, Tobias; Brinker, Alexander; Nielsen, Rasmus; Rad, Ferit

doi:10.1111/are.13144

Cited by 33 publications

(28 citation statements)

References 26 publications

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“…Differences in ep-EROI among systems also demonstrate the importance of fish in the system, mainly because fish have a higher percentage of edible meat than prawn (61% vs. 45%, respectively). The ep-EROI in this study (0.9e4.6%) were lower than those of other aquaculture fish, such as trout (9.1e14.1%) (Lasner et al, 2016) and salmon (7.8e17.8%) (Pelletier and Tyedmers, 2007), but they lay within the range (0.8e14.9%) of those of seafood caught with a variety of fishing techniques (V azquez-Rowe et al, 2014). Comparisons should be made carefully, since energy inputs to systems vary among studies, as do energy concentrations of protein (e.g.…”

Section: Rearing Systemscontrasting

confidence: 44%

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Life cycle assessment of fish and prawn production: Comparison of monoculture and polyculture freshwater systems in Brazil

Medeiros

Aubin

Camargo

2017

Journal of Cleaner Production

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This study applied life cycle assessment (LCA) to evaluate and compare environmental impacts of monoculture and polyculture systems in freshwater ponds. Two omnivorous native Brazilian species were used: the fish tambaqui (Colossoma macropomum) and the Amazon River prawn (Macrobrachium amazonicum). Four semi-intensive aquaculture systems (at an experimental level) were established and studied: monoculture of C. macropomum (MM), monoculture of M. amazonicum (MA), polyculture in which both species were free in the pond (PF), and polyculture in which C. macropomum was reared in a hapa cage and M. amazonicum was free in the pond (PH). The MM, PF and PH systems were fed fish feed, while MA was fed shrimp feed. Water was not renewed, but added only to replace losses from evaporation and seepage. Seven impact categories were analyzed: climate change, eutrophication, cumulative energy demand, land occupation, acidification, net primary production use and water dependence. Potential impacts of 1 kg of animal biomass produced by the systems were calculated, as was uncertainty in predictions based on uncertainty in data for the systems. Environmental impacts of each species in the polyculture systems were estimated using system expansion and different allocation approach: mass, energy and economic. PF and MM had the lowest impacts in all impact categories, while MA had the highest. When economic allocation was used, PF had lower impacts than MM per kg of C. macropomum. The rearing stage itself was the main contributor to eutrophication, land occupation and water dependence. However, feed was the main contributor to acidification and net primary production use in all systems. Only for PH was feed not the most significant contributor to climate change. Productivity and feed conversation ratio were key factors that defined the most efficient system from an environmental viewpoint. Our study demonstrated the advantage of rearing M. amazonicum in a polyculture instead of a monoculture, while no difference was found for C. macropomum. Changing the allocation approach revealed that aquaculture of M. amazonicum has lower impacts when the species is reared in polyculture systems. Moreover, aquaculture of native species remains in the early stages, and further development of its production chain may decrease its environmental impacts.

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Section: Rearing Systemscontrasting

confidence: 44%

“…Comparisons should be made carefully, since energy inputs to systems vary among studies, as do energy concentrations of protein (e.g. 16.7 MJ kg À1 (this study), 16.73 MJ kg À1 (V azquez-Rowe et al, 2014), 23.6 MJ kg À1 (Lasner et al, 2016;Pelletier and Tyedmers, 2007)).…”

Section: Rearing Systemsmentioning

confidence: 93%

Life cycle assessment of fish and prawn production: Comparison of monoculture and polyculture freshwater systems in Brazil

Medeiros

Aubin

Camargo

2017

Journal of Cleaner Production

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“…Природна їжа в переважній більшості випадків вирощування форелі в спеціально створених водоймах не відіграє особливого значення. Всі необхідні поживні речовини, мікроелементи та вітаміни форель отримує із згодованих кормів (Bozhyk et al, 2004;Martseniuk, 2008;Brinker et al, 2016).…”

Section: матеріал і методи дослідженьunclassified

Economic efficiency of growing commodity trout in farms in the Western Ukraine while feeding with forages Aller Aqua

2018

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Fish farming, as an agricultural sector, plays an important role in providing people with valuable food. In order to maintain fish stocks in reservoirs at the industrial level, the introduction of additional industrial species, as well as their hybrid forms, is important. Growing trout is promising in Ukraine, especially in the western region. The urgent task for modern freshwater fish farming in Ukraine is the restoration of effective development of trout fishing. An increase in the production of high-quality trout products in Ukraine will make it possible to significantly reduce imports of salmon fish. According to the working meeting of the trolling development team in Ukraine, held on September 6, trout growing in the Ukrainian market reached 6 thousand tons, while 10 thousand tons per year of grown trout is the absolute minimum that can be grown. In our country trout is not a traditional breeding object, its production is only 1.5% of all species of fish. The increase in the production trout fishing of products is possible due to the expansion of production areas, the integration of production processes, the transfer of experience from foreign producers, as well as investments in the fishing industry, which would allow small farms to supply domestic products to the market. An important moment in the development of profitable trout farms is the definition of the optimal commodity weight of trout. So in foreign trout fishing, small trout is not realized. Freshwater economies in Germany, Denmark, and Turkey face high feed costs and relatively low productivity. In the US, for example, during the year the trout reaches a mass of 410–450 g; in Japan, rainbow trout weighing 100–120 g is used as a landing material for garden cultivation in seawater, which is carried out from October to July next year at a water temperature of 8–14 °C. At the end of the period, the fish grown up to 2 kg. Growing rainbow trout as commercial fish in trout farms is organized with different terms of implementation, depending on the different weight of fish. Currently, trout is considered to be commodity in Ukraine with an average weight of 250–350 g. But given the current state of the market of fish products, it is not feasible to sell such fish because it does not show its food and taste preferences and does not have a commodity condition. Along with this, in the commodity trout weighing 500 g or more, except for meat, caviar are a valuable food product. Fishery productivity is a key indicator of the efficiency of farm fish farming and reflects the state of technology and production culture, and the level of management affects all economic performance of the fish industry. In modern trout fishing, traditional feeds are finally replaced with highly effective granulated dry feed mixes. Therefore, the purpose of our work was, based on a review of literary sources and analysis of the economic activity of the investigated farms, to give a general description of the forage for Aller Aqua, which is used for fish feeding, and to determine their effectiveness.

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“…The 2016 report on the economic performance of the EU aquaculture sector (STECF 2016) was the fifth of its kind and constitutes the most recent comprehensive overview of the information available on the production, economic value, structure and competitive performance of the aquaculture sector at the national and EU level (e.g. Bostock et al 2016, Jennings et al 2016, Lasner et al 2017). Because providing data on the freshwater aquaculture sector is optional under the DCF (and landlocked countries do not participate), not all EU member states provided data regarding their full national aquaculture sectors, so the reported DCF data were supplemented using production data held by the statistical office of the EU (Eurostat) to provide a more complete overview of the aquaculture sector for all 28 EU member states.…”

Section: Aquaculture and Fish Processing Sectorsmentioning

confidence: 99%

Collection and dissemination of fisheries data in support of the EU Common Fisheries Policy

Dörner¹,

Casey²,

Carvalho³

et al. 2018

Ethics. Sci. Environ. Polit.

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A systematic European Union (EU)-wide data framework for the collection of fisheries data in support of the EU Common Fisheries Policy (CFP) was first implemented in 2002. Since that time, EU data collection regulation has undergone 2 revisions in response to evolving policy needs. The European Commission's Joint Research Centre (JRC) is responsible for conducting research and providing advice on fisheries management under the CFP, and since 2005 has worked closely with the Scientific, Technical and Economic Committee for Fisheries (STECF). JRC and STECF have an open data policy, and aggregated data submitted by EU member states in response to data calls issued under the provisions of the data collection regulation are published via the website of the STECF. This paper provides an overview of the fisheries data activities carried out by the JRC in support of and in collaboration with the STECF and discusses some of the benefits and drawbacks of such activities.

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Establishing a benchmarking for fish farming - Profitability, productivity and energy efficiency of German, Danish and Turkish rainbow trout grow-out systems

Cited by 33 publications

References 26 publications

Life cycle assessment of fish and prawn production: Comparison of monoculture and polyculture freshwater systems in Brazil

Life cycle assessment of fish and prawn production: Comparison of monoculture and polyculture freshwater systems in Brazil

Economic efficiency of growing commodity trout in farms in the Western Ukraine while feeding with forages Aller Aqua

Collection and dissemination of fisheries data in support of the EU Common Fisheries Policy

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