Environmental impacts of plant-based salmonid diets at feed and farm scales

Boissy, Joachim; Aubin, Joël; Drissi, Abdeljalil; Werf, Hayo M.G. van der; Bell, Gordon J.; Kaushik, Sadasivam

doi:10.1016/j.aquaculture.2011.08.033

Cited by 109 publications

(124 citation statements)

References 25 publications

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“…This methodology has been used in numerous seafood LCAs for both fishing and aquaculture [32,33,44,52,[57][58][59][60][61][62]. The impact categories used in this study to determine the potential impact are abiotic depletion (AD), global warming (GW), ozone layer depletion (OLD), photochemical oxidation (PO), acidification (A) and eutrophication (E).…”

Section: Evaluation Of the Impact Of The Life Cyclementioning

confidence: 99%

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Life Cycle Assessment of Gilthead Seabream (Sparus aurata) Production in Offshore Fish Farms

Garcı́a¹,

Jiménez

Aguado‐Giménez

et al. 2016

Sustainability

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Abstract:Life cycle assessment is used in this study to evaluate the potential environmental impacts of producing gilthead seabream in an offshore sea farm exposed to storms in the Spanish Mediterranean Sea. The farming methods used can be considered as "basic" since no centralized or automatic food distribution system exists and there is no control system. This study aims to identify the main hotspots under these conditions and to propose and compare viable alternatives to them. Contribution analysis found that the component of the system with the greatest potential environmental impact (48% of the overall impact) was fish feed, especially the raw material used. Other contributory factors were the fuel consumed by the vessels operating in the farm (35%), the dumping of N and P in the environment due to the metabolism of the fish (12%), the cages and their anchorage system (5%). A sensitivity analysis showed that a significant reduction in potential environmental impact can be achieved by increasing feeding efficiency. Feed formulation in raw materials is also an important factor and could serve to diminish overall adverse effects. A balance needs to be found between productive performance (growth, survival and feed conversion rate), feed price and its influence on production costs and the overall environmental consequences.

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Section: Evaluation Of the Impact Of The Life Cyclementioning

confidence: 99%

“…Furthermore, information available in the literature for other marine species was reviewed [43,44,52]. This standard feed (FEED) is approximately 43% protein and 22% lipid.…”

Section: Feedmentioning

confidence: 99%

Life Cycle Assessment of Gilthead Seabream (Sparus aurata) Production in Offshore Fish Farms

Garcı́a¹,

Jiménez

Aguado‐Giménez

et al. 2016

Sustainability

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“…The concerns about the use of fishmeal and fish oil and their rising prices has led to investments in research to find alternative sources of cheaper and high-quality ingredients of plant and animal sources (De Silva and Hasan, 2007). As Pelletier and Tydemers (2007) and Boissy et al (2011) have pointed out, increasing plant materials in aquafeed, and even a total substitution of fishmeal and fish oil can lower environmental impact and decreases the pressure on wild fish stocks.…”

Section: Introductionmentioning

confidence: 99%

“…Feed compositions and different diets have also been explored (e.g. Boissy et al, 2011, Pelletier & Tydemers, 2007.…”

Section: Introductionmentioning

confidence: 99%

Untitled

Smárason

Ögmundarson

Árnason

et al. 2017

Turk. J. Fish. Aquat. Sci.

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This study utilized Life Cycle Assessment (LCA) to quantify the environmental impacts of 1 kg of live-weight Arctic char, cultivated in an Icelandic land-based aquaculture farm. The functional unit included assessments of three different feed types; standard feed with high inclusion levels of marine ingredients (Conv.), experimental feed with high inclusion levels of agricultural ingredients (ECO) and a hypothetical Black soldier fly larvae based feed (BSF). Results of the study indicated that the feed production causes the greatest environmental impacts from all feed types considered. The Black soldier fly based feed demonstrated the best environmental performance of the three feed types. Furthermore, it can be concluded that by increasing agriculture based ingredients at the cost of marine based ingredients, a better environmental performance can be reached. This study demonstrated the importance of feed production for aquaculture in terms of environmental impacts and showed that byoptimizing feed consumption, reducing the amount of fishmeal and fish oil and even creating new types of feed from novel ingredients, the overall impacts of aquaculture can be greatly reduced.

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“…Mollusc species (e.g., mussels and oysters) account for approximately 23% of global farmed seafood production and do not need to be fed, instead taking their nutrition from the surrounding environment (e.g., plankton & detritus), resources that are otherwise not directly exploitable by humans [6,71]. The efficiency in which the farmed fish utilize the feed (known as feed conversion ratio (FCR)) the quantities of fishmeal and fish oil contained in the feed, and the amount of wild fish used to produce the feed, are important factors determining the economic profitability and environmental impacts of aquaculture [2,8,17,19,[72][73][74][75]. For example, fishmeal and fish oil generally constitute 50%-75% by weight of carnivorous marine farmed finfish aquafeeds.…”

Section: Fishmeal and Oilmentioning

confidence: 99%

The Development of Sustainable Saltwater-Based Food Production Systems: A Review of Established and Novel Concepts

Gunning

Maguire

Burnell

2016

Water

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Abstract:The demand for seafood products on the global market is rising, particularly in Asia, as affluence and appreciation of the health benefits of seafood increase. This is coupled with a capture fishery that, at best, is set for stagnation and, at worst, significant collapse. Global aquaculture is the fastest growing sector of the food industry and currently accounts for approximately 45.6% of the world's fish consumption. However, the rapid development of extensive and semi-extensive systems, particularly intensive marine-fed aquaculture, has resulted in worldwide concern about the potential environmental, economic, and social impacts of such systems. In recent years, there has been a significant amount of research conducted on the development of sustainable saltwater-based food production systems through mechanical (e.g., recirculatory aquaculture (RAS) systems) methods and ecosystem-based approaches (e.g., integrated multi-trophic aquaculture (IMTA)). This review article will examine the potential negative impacts of monocultural saltwater aquaculture operations and review established (RAS) and novel (IMTA; constructed wetlands; saltwater aquaponics) saltwater-based food production systems and discuss their (potential) contribution to the development of sustainable and environmentally-friendly systems.

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Environmental impacts of plant-based salmonid diets at feed and farm scales

Cited by 109 publications

References 25 publications

Life Cycle Assessment of Gilthead Seabream (Sparus aurata) Production in Offshore Fish Farms

Life Cycle Assessment of Gilthead Seabream (Sparus aurata) Production in Offshore Fish Farms

Untitled

The Development of Sustainable Saltwater-Based Food Production Systems: A Review of Established and Novel Concepts

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