Nutritional contribution of seaweed Ulva lactuca single-cell detritus and microalgae Chaetoceros calcitrans to the growth of the Pacific oyster Crassostrea gigas

Omont, Alexia; Py, Clara; Gamboa‐Delgado, Julián; Nolasco-Soria, Héctor; Spanopoulos-Zarco, Milton; Peña‐Rodríguez, Alberto

doi:10.1016/j.aquaculture.2021.736835

Cited by 14 publications

(6 citation statements)

References 69 publications

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“…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%

“…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%

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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show abstract

“…Product diversification, improved biosecurity and social acceptability are additional characteristics associated with IMTA systems. 11,97 Concerns about the environmental impacts exerted by traditional aquaculture, such as the direct discharge of nutrient loads causing eutrophication, have been highlighted. 98 In contrast, IMTA systems can provide nutrient bioremediation capability by using taxa of lower trophic levels such as filter feeders and macroalgae to remove suspended organic matter and metabolic waste products, thereby promoting best management practices and mutual benefits to the co-cultured organisms.…”

Section: The Us Efulne Ss Of S Ia To E Xplore N Utrient Dynami C S In Integ R Ated Multi -Trophic Aquaculturementioning

confidence: 99%

“…By measuring diet-elicited isotopic changes over time, inferences can also be drawn about metabolic turnover rates and elemental residency times in tissue. 10,11 Additional useful applications consist in applying isotopic data to estimate the proportional contributions of specific dietary items to growth. For such end, a selection of two or more feeding items having different isotopic values can be used to conduct feeding assays to explore the assimilation of supplied nutrients.…”

Section: S Tab Le Isotope Analys Is -Prin Ciple Of Appli C Ati Onmentioning

confidence: 99%

Isotopic techniques in aquaculture nutrition: State of the art and future perspectives

Gamboa‐Delgado

2021

Reviews in Aquaculture

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Aquaculture production systems resemble small, confined ecosystems existing in compartments. However, from the point of view of thermodynamics, living organisms are open systems that only thrive with a constant supply of energy from the outside. Nutrients and energy flow in a dynamic process of inputs, retentions and outputs.The integral study of key components such as the suitability of dietary items and the nutritional physiology of cultured organisms has opened new research areas that in turn have led to higher production outputs. Concomitant with the latter, the farming of emergent, alternative species has also been favoured by this nutritional research. A vast number of analytical techniques and monitoring methods have shed light on the nutritional performance of experimental diets and feeding regimes designed for aquatic organisms at different life stages and growing under a variety of production

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“…One of the key attractiveness of using macroalgae is that they possess bioactive compounds and functional properties that can be conferred to the aquafeeds and the farmed aquatic animal, e.g., as immunomodulation, maintaining fish growth, and feed physical-chemical integrity (Figure 1; Gomez-Zavaglia et al, 2019). Inclusions of macroalgal ingredients have also been tested for crustaceans and echinoderms (Schleder et al, 2017;Omont et al, 2021;Xu et al, 2021). Besides supplying a source of dietary protein in aquafeeds, the proteins and peptides found in seaweeds have shown an extensive range of properties that include antihypertensive, antioxidative, and immune-supportive activities in fish (Harnedy and Fitzgerald, 2011).…”

Section: Introductionmentioning

confidence: 99%

Tracing the Trophic Fate of Aquafeed Macronutrients With Carbon Isotope Ratios of Amino Acids

2022

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To meet future seafood demands, ingredients derived from algae and other novel and sustainable sources are increasingly being tested and used as replacers to traditional aquafeed ingredients. Algal ingredients in particular are being promoted for their sustainability and their additional functional attributes in farmed aquatic animals. Test on algal supplemented aquafeeds typically focus on a suite of immunological and physiological indicators along with fish growth performance or muscle quality. However, to optimize the replacement of fish meal with algal derived ingredients, it is crucial to understand the metabolic fate in the algal macronutrients (carbohydrates, fats, and proteins), and their nutritional interactions with other ingredients after ingestion. Here, we assess the potential of using the emerging technology- stable carbon isotope (δ13C) analysis of single amino acids (AAs) as a nutritional biomarker in aquaculture. Applications of δ13CAA-based approaches in feeding trials show promise in closing the knowledge gap in terms of understanding how fish and other aquaculture taxa assimilate and metabolize algal derived macronutrients. Source diagnostic δ13C fingerprints among the essential AAs can trace the protein origins to broad phylogenetic groups such as red macroalgae, brown macroalgae, bacteria, and terrestrial plants. Among the non-essential AAs, δ13C patterns have the potential to inform about metabolic routing and utilization of dietary lipids and carbohydrates. Despite the potential of δ13CAA as a nutritional biomarker, the few applications to date in fish feeding trials warrant further development and implementation of δ13CAA-based approaches to improve understanding of protein origins and macronutrient metabolic routing.

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Nutritional contribution of seaweed Ulva lactuca single-cell detritus and microalgae Chaetoceros calcitrans to the growth of the Pacific oyster Crassostrea gigas

Cited by 14 publications

References 69 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

Isotopic techniques in aquaculture nutrition: State of the art and future perspectives

Tracing the Trophic Fate of Aquafeed Macronutrients With Carbon Isotope Ratios of Amino Acids

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