Integrated Multi-Trophic Aquaculture (IMTA)

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Sustainable Aquaculture".

Deadline for manuscript submissions: 10 December 2025 | Viewed by 491

Special Issue Editors


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Guest Editor
Aquaculture Center, São Paulo State University (UNESP), Jaboticabal, SP, Brazil
Interests: fish; aquaculture production systems; shrimp farming; sustainable aquaculture

E-Mail Website
Guest Editor
Aquaculture Center, São Paulo State University (UNESP), Jaboticabal, SP, Brazil
Interests: sustainability; SDGs; bioeconomy; circular economy; aquaculture production systems; nutrient budget
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Special Issue Information

Dear Colleagues,

Aquaculture plays an incredibly important role in fulfilling the needs of our growing population. However, to truly embrace sustainability, we need to rethink existing practices and change some paradigms in the production of aquatic organisms. Innovations based on circularity and restorative and nutrient-sensitive aquaculture should be introduced. Transitioning from a linear economic model to a circular economy is a vital step towards enhancing sustainability and supporting the Sustainable Development Goals of the 2030 Agenda.

Integrating species with complementary ecosystem functions and needs within the same culture could provide a viable solution. Innovative systems associating autotrophic organisms, microbes, and suspension- and deposit-feeders with species fed manufactured diets can improve resource efficiency and promote circularity. In integrated systems, by-products, often regarded as worthless waste in monoculture, are utilized as inputs to support the production of other species instead of being discarded into the environment. Therefore, the integrated multi-trophic aquaculture (IMTA) systems, which include multi-spatial and multi-niche concepts, address the necessities of the modern world and have huge potential for expansion worldwide.

However, some technological bottlenecks still impair the establishment of commercial farms operating in IMTA, such as the proportion and stocking size of each of the combined species and the optimization of general management and harvesting. Research should be performed to improve the culture of different species in several countries, using the principles of circular bioeconomy. This will support technologies to achieve the Sustainable Development Goals (SDGs) of the 2030 Agenda.

This Special Issue aims to publish high-quality research on innovative integrated aquaculture systems that focus on the principles of circularity and restorative processes. Studies on the co-culture of aquatic species or the integration of aquatic and terrestrial species are welcome. This includes marine and freshwater systems combining macroalgae, fishes, crustaceans, and molluscs; aquaponics; rice-fish; rice-prawn; and others. In addition, studies focusing on all value chain elements, including processing, trade, and market, are appropriate. We welcome the submissions of original research articles, short communications, and reviews.

Prof. Dr. Patricia Moraes-Valenti
Prof. Dr. Wagner C. Valenti
Guest Editors

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Keywords

  • IMTA
  • integrated aquaculture
  • nutrient regeneration
  • restorative aquaculture
  • ecological and symbiotic aquaculture
  • aquamimicry
  • aquapony

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Published Papers (1 paper)

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Research

15 pages, 478 KB  
Article
Nitrogen Budget in Yellow-Tail Lambari Monoculture and Integrated Aquaculture
by Dalton Belmudes, Andre Z. Boaratti, Paulo V. L. Mantoan, Aline M. Marques, Julia R. C. Ferreira, Patricia Moraes-Valenti, Dallas L. Flickinger and Wagner C. Valenti
Fishes 2025, 10(10), 480; https://doi.org/10.3390/fishes10100480 - 26 Sep 2025
Viewed by 250
Abstract
This study quantified nitrogen (N) inputs by water, feed, animals, and atmospheric gas and outputs by water, harvested animals, sediments, and gas emissions in earthen ponds used for the monoculture and integrated cultures of yellow-tail lambari (Astyanax lacustris), Amazon River prawn [...] Read more.
This study quantified nitrogen (N) inputs by water, feed, animals, and atmospheric gas and outputs by water, harvested animals, sediments, and gas emissions in earthen ponds used for the monoculture and integrated cultures of yellow-tail lambari (Astyanax lacustris), Amazon River prawn (Macrobrachium amazonicum), and curimbata (Prochilodus lineatus), and evaluated whether epibenthic species improve N retention in harvested biomass. Three systems with four replicates were tested, lambari monoculture (L), lambari–prawn (LP), and lambari–prawn–curimbata (LPC), stocked at 50, 25, and 13 individuals m−2, respectively. Feed N was the major input (67–75%), followed by inlet water (19–30%). Harvested biomass represented 20–23% of total outputs, sediments 25–33%, and gaseous emissions 7–29%, while outlet water contributed <3%. N lost through seepage was highest in L (70.5 ± 22.9 kg N ha−1). N2 ebullition increased with benthic species, from 10.4 ± 10.6 kg N ha−1 (L) to 72.1 ± 32.4 kg N ha−1 (LPC). N recovered in lambari was 43.2 ± 7.4 kg N ha−1 in LPC, 36 ± 8.6 in L, and 33 ± 5.6 in LP. Considering all species, recovery of dietary N increased from 20.0 ± 4.3% (L) to 35.0 ± 5.9% (LPC), and recovery from all inputs rose from 13.0 ± 2.2% to 18.0 ± 3.4%. Integrated systems, particularly LPC, enhanced N retention in biomass and reduced environmental losses. Full article
(This article belongs to the Special Issue Integrated Multi-Trophic Aquaculture (IMTA))
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