Sustainable Intensification of Aquaculture through Nutrient Recycling and Circular Economies: More Fish, Less Waste, Blue Growth

Campanati, Camilla; Willer, David F.; Schubert, Jasmin; Aldridge, David C.

doi:10.1080/23308249.2021.1897520

Cited by 64 publications

(47 citation statements)

References 337 publications

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“…Furthermore, fouling by U. pinnatifida of aquaculture systems is common as the macroalga thrives in the nutrient-rich side streams (Food and Agriculture Organization, 2020). Hence, harvesting and repurposing costly U. pinnitifida from aquaculture systems would support a beneficial circular economy (Campanati et al, 2021). The use of renewable natural resources, such as detritus of Ulva lactuca seaweed, also showed positive outcomes in the substitution of 50% microalgal diet for the production of C. gigas oysters (Omont et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

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Microencapsulated diets using thraustochytrids and macroalgae side streams for nursery rearing of Mytilus galloprovincialis spat

Campanati

Arantzamendi

Zorita

et al. 2022

J World Aquaculture Soc

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Global expansion of bivalve aquaculture can drive sustainable protein production. Inland culture of mussel spat can play an important role in supporting extensive mussel farming. Nursery culture of bivalves is, however, dependent on nutritious, costefficient, and more reliable diets for spat. The aim of this study was to assess the impact of dietary alternatives to commercial algal feeds (Shellfish Diet 1800) on the survival and growth of Mytilus galloprovincialis spat, widely farmed in Europe. Spat (6.8 ± 1.1 mm) were supplied with different diets for 6 weeks: commercial microalgal diet (A), microencapsulated feeds containing a 1:1 blend of the macroalga Undaria pinnatifida and the microalga Schizochytrium (BioBullets; BB), or commercial microalgae and BioBullets combined (ABB). Unsupplemented spat showed no growth and little change in body condition (CI). Spat fed microcapsules grew at comparable rates, and body condition rose at higher levels (shell growth rates: 8.5 ± 3.7 μm day À1 ; ΔCI: 6.1 ± 1.1%) relative to those fed commercial microalgae (8.5 ± 5.7 μm day À1 ; ΔCI: 3.3 ± 0.8%).Supplementing microencapsulated feeds with the commercial microalgal diet did not significantly improve growth

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Section: Discussionmentioning

confidence: 99%

“…Both algae present additional benefits as they can be sourced from the side streams of existing aquaculture systems, thus offering sustainability benefits through circular economies, which is a central goal in the future "blue growth" of global aquaculture (Campanati et al, 2021).…”

mentioning

confidence: 99%

Microencapsulated diets using thraustochytrids and macroalgae side streams for nursery rearing of Mytilus galloprovincialis spat

Campanati

Arantzamendi

Zorita

et al. 2022

J World Aquaculture Soc

Self Cite

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“…Moreover, they offer year-round fish growth and provide a high degree of environmental control [ 7 , 8 ]. RAS have great opportunities for waste management and nutrient recycling [ 9 ]. The lower flow rates of RAS compared to raceway systems, and the high stocking densities of RAS compared to ponds and cages lead to lesser, more concentrated effluents from the fish tanks, which can be treated more cost effectively [ 2 , 7 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

From Aquaculture to Aquaculture: Production of the Fish Feed Additive Astaxanthin by Corynebacterium glutamicum Using Aquaculture Sidestream

et al. 2023

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Circular economy holds great potential to minimize the use of finite resources, and reduce waste formation by the creation of closed-loop systems. This also pertains to the utilization of sidestreams in large-scale biotechnological processes. A flexible feedstock concept has been established for the industrially relevant Corynebacterium glutamicum, which naturally synthesizes the yellow C50 carotenoid decaprenoxanthin. In this study, we aimed to use a preprocessed aquaculture sidestream for production of carotenoids, including the fish feed ingredient astaxanthin by C. glutamicum. The addition of a preprocessed aquaculture sidestream to the culture medium did not inhibit growth, obviated the need for addition of several components of the mineral salt’s medium, and notably enhanced production of astaxanthin by an engineered C. glutamicum producer strain. Improved astaxanthin production was scaled to 2 L bioreactor fermentations. This strategy to improve astaxanthin production was shown to be transferable to production of several native and non-native carotenoids. Thus, this study provides a proof-of-principle for improving carotenoid production by C. glutamicum upon supplementation of a preprocessed aquaculture sidestream. Moreover, in the case of astaxanthin production it may be a potential component of a circular economy in aquaculture.

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“…7,8 Core issues at the global scale include reducing pressure on wild stocks caused by production of aquaculture feed, 9 decreasing the material and energy footprint of aquaculture, predicting effects of climate change on aquaculture production 10 and developing circular and integrated aquatic food systems. 11 At each scale, models can play an important role in addressing many of these issues, and developing them is of great relevance to translate EAA principles and recommendations into action. 4,12,13 Models can be used as research tools to describe complex real systems in conceptual objects, reveal system properties, establish research priorities, test scientific hypotheses and help design experiments.…”

Section: Introductionmentioning

confidence: 99%

“…the maximum density of cultured species that does not cause unacceptable ecological impacts 6 ) of hosting ecosystems 7,8 . Core issues at the global scale include reducing pressure on wild stocks caused by production of aquaculture feed, 9 decreasing the material and energy footprint of aquaculture, predicting effects of climate change on aquaculture production 10 and developing circular and integrated aquatic food systems 11 …”

Section: Introductionmentioning

confidence: 99%

Farm‐scale models in fish aquaculture – An overview of methods and applications

Chary

Brigolin

Callier

2022

Reviews in Aquaculture

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Models are important tools to address sustainability challenges associated with developing aquaculture at farm, regional and global scales. Farm-scale models (FSMs), which are integrated mathematical models developed to simulate farm operations, can quantify energy, mass or economic input flows and predict a variety of outputs such as fish biomass, waste and by-products. The variety of farming systems, equa-

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Sustainable Intensification of Aquaculture through Nutrient Recycling and Circular Economies: More Fish, Less Waste, Blue Growth

Cited by 64 publications

References 337 publications

Microencapsulated diets using thraustochytrids and macroalgae side streams for nursery rearing of Mytilus galloprovincialis spat

Microencapsulated diets using thraustochytrids and macroalgae side streams for nursery rearing of Mytilus galloprovincialis spat

From Aquaculture to Aquaculture: Production of the Fish Feed Additive Astaxanthin by Corynebacterium glutamicum Using Aquaculture Sidestream

Farm‐scale models in fish aquaculture – An overview of methods and applications

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