Growth, survival, body composition and amino acid profile of<i>Macrobrachium borellii</i>against the limitation of feeds with different C:N ratios with comments about application in integrated multi‐trophic aquaculture

Carvalho, Débora de Azevedo; Reyes, Paula; Williner, Verónica; Mora, M.; Viozzi, M. Florencia; Bonis, Cristián De; Collins, Pablo Agustín

doi:10.1111/are.14696

Cited by 7 publications

(10 citation statements)

References 55 publications

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“…In prawns, body N content and body mass influenced the N excretion, differing from crabs and anomurans. Contrary to what would be expected from the EST predictions, prawns mineralized higher N than the other species, even with higher body N content and after the consumption of diets that did not fulfill the protein requirement of this species to grow (~35%) [60]. A. uruguayana anomuran and T. borellianus crab released the intermediate and the lowest rates of N, respectively, showing the same trend in their respective amounts of body N; results that do not either align with EST predictions [8].…”

Section: Discussioncontrasting

confidence: 82%

“…These findings could be related to the natural diet and the carnization of crustaceans, since M. borellii have a more carnivorous trophic habit [54,57]. This species requires high protein content to achieve better growth parameters [60] and it is an uncarcinized decapod. These traits could contribute to a lower body C:N content compared to the other species, due to a higher ingestion of N-rich food items (higher trophic status) and to a less chitinous carapace.…”

Section: Discussionmentioning

confidence: 99%

“…It is made available under a preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in The copyright holder for this this version posted January 11, 2022. ; https://doi.org/10.1101/2022.01.11.475807 doi: bioRxiv preprint 5 components, they could vary during ontogeny and interspecifically, in addition to extrinsic factors [57][58][59]. The trophic habit of these organisms is an advantage in captivity conditions because it allows a good acceptance of artificial feed and enables experimental aquaculture research [60,61].…”

Section: Introductionmentioning

confidence: 99%

“…The use of native crustaceans in aquaculture systems is growing in South America [73][74][75][76][77]. The potentiality of using them as nutrient recycle organisms in fish production systems is high if we consider their wide trophic habits, the great acceptance of artificial feed, and the multiple uses of this by-product to add revenue to the production [60,78,79]. This approach is used to deal with the environmental burden of intensive farming and is coupled with the practice of integrated multitrophic aquaculture (IMTA), which consists in co-cultivating organisms of different trophic levels in the same system selected for their functions and complementary ecosystem services, connected by the transfer of matter and energy through water [80].…”

Section: Introductionmentioning

confidence: 99%

“…In the last case, trophic position should predict body composition because organisms should 5 components, they could vary during ontogeny and interspecifically, in addition to extrinsic factors [57][58][59]. The trophic habit of these organisms is an advantage in captivity conditions because it allows a good acceptance of artificial feed and enables experimental aquaculture research [60,61].…”

Section: Introductionmentioning

confidence: 99%

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Consumer-driven nutrient recycling of freshwater decapods: linking ecological theories and application in integrated multi-trophic aquaculture

Musin

Torres

Carvalho

2022

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The Metabolic Theory of Ecology (MET) and the Ecological Stoichiometry Theory (EST) are central and complementary in the consumer-driven recycling conceptual basis. The comprehension of physiological processes of organisms at different levels of organizations is essential to explore and predict nutrient recycling behavior in different scenarios, and to design integrated productive systems that efficiently use the nutrient inputs through an adjusted mass balance. We fed with fish-feed three species of decapods from different families and with aquacultural potential to explore the animal-mediated nutrient dynamic and its applicability in productive systems. We tested whether physiological (body mass, body elemental content), ecological (diet), taxonomic and experimental (time of incubation) variables predicts N and P excretion rates and ratios across and within taxa. We also analysed body mass and body elemental content independently as predictors of N and P excretion of decapods across, among and within taxa. Finally, we verified if body content scales allometrically across and within taxa and if differed among taxa. Body mass and taxonomic identity predicted nutrient excretion rates both across and within taxa. When physiological variables were analysed independently, body size best predicted nutrient mineralization in both scales of analyses. Regarding body elemental content, only body P content scaled negatively with body mass across taxa. Results showed higher N-requirements and lower C:N of prawns than anomurans and crabs. The role of crustaceans as nutrient recyclers depends mainly on the species and body mass, and should be considered to select complementary species that efficiently use feed resources. Prawns need more protein in their feed and might be integrated with fish of higher N-requirements, while crabs and anomurans, with fish of lower N-requirements. Our study contributed to the background of MTE and EST through empirical data obtained from decapods and provided useful information to achieve more efficient aquaculture integration systems.

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Section: Discussioncontrasting

confidence: 82%