Integrated multitrophic aquaculture (IMTA) as an environmentally friendly system for sustainable aquaculture: functionality, species, and application of biofloc technology (BFT)

Khanjani, Mohammad Hossein; Zahedi, Saeed; Mohammadi, Alireza

doi:10.1007/s11356-022-22371-8

Cited by 52 publications

(23 citation statements)

References 166 publications

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“…Similarly, in tank cultivation systems, the addition of M. edulis and Pacific oysters ( Magallana gigas , Thunberg, 1793) significantly reduced epiphyte fouling on S. latissima blades by ~50% through bivalve filter feeding [ 62 ]. Given the rise in integrated multi-trophic aquaculture (IMTA) systems [ 63 , 64 ], future research needs to assess how epibiont assemblages vary for different co-cultured species, to accurately assess the habitat value of the whole farm site [ 8 ].…”

Section: Discussionmentioning

confidence: 99%

Development and Diversity of Epibiont Assemblages on Cultivated Sugar Kelp (Saccharina latissima) in Relation to Farming Schedules and Harvesting Techniques

Corrigan

Brown

Tyler

et al. 2023

Life

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Seaweed farming in Europe is growing and may provide environmental benefits, including habitat provisioning, coastal protection, and bioremediation. Habitat provisioning by seaweed farms remains largely unquantified, with previous research focused primarily on the detrimental effects of epibionts, rather than their roles in ecological functioning and ecosystem service provision. We monitored the development and diversity of epibiont assemblages on cultivated sugar kelp (Saccharina latissima) at a farm in Cornwall, southwest UK, and compared the effects of different harvesting techniques on epibiont assemblage structure. Increases in epibiont abundance (PERMANOVA, F4,25 = 100.56, p < 0.001) and diversity (PERMANOVA, F4,25 = 27.25, p < 0.001) were found on cultivated kelps over and beyond the growing season, reaching an average abundance of >6000 individuals per kelp plant with a taxonomic richness of ~9 phyla per kelp by late summer (August). Assemblages were dominated by crustaceans (mainly amphipods), molluscs (principally bivalves) and bryozoans, which provide important ecological roles, despite reducing crop quality. Partial harvesting techniques maintained, or increased, epibiont abundance and diversity beyond the farming season; however, these kelp plants were significantly fouled and would not be commercially viable in most markets. This paper improves understanding of epibiont assemblage development at European kelp farms, which can inform sustainable, ecosystem-based approaches to aquaculture.

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Section: Discussionmentioning

confidence: 99%

Development and Diversity of Epibiont Assemblages on Cultivated Sugar Kelp (Saccharina latissima) in Relation to Farming Schedules and Harvesting Techniques

Corrigan

Brown

Tyler

et al. 2023

Life

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“…The introduction of species in integrated aquaculture is related to their ability to adapt according to system conditions and their interaction with other organisms [35]. In offshore systems, with low water turbidity and water renewal by currents, the integration of the macroalgae into the cultures shows better results.…”

Section: Discussionmentioning

confidence: 99%

“…Excess solids in the water can cause rapid oxygen depletion [36] and growth performance problems to the shrimp [5]. Some alternatives to control solids presented by Khanjani et al [35] would be the use of organic consumers in integrated cultivation. Thus, the solids would be controlled without the use of clarifiers and there would not be a large amount of solids deposited on the macroalgae.…”

Section: Discussionmentioning

confidence: 99%

Influence of Total Suspended Solids on the Growth of the Sea Lettuce Ulva lactuca Integrated with the Pacific White Shrimp Litopenaeus vannamei in a Biofloc System

Carvalho

Costa

Holanda

et al. 2023

Fishes

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A biofloc system is rich in nutrients, which favors the cultivation of macroalgae, but the influence of the system on the performance of macroalgae is unknown. The objective of this study was to analyze the feasibility of introducing the macroalgae Ulva lactuca into the culture of Litopenaeus vannamei in a biofloc system. The first experiment evaluated the influence of 400 mg L−1 and 30 mg L−1 solids concentration of the system in biofloc and von Stosch culture medium on macroalgae growth. In the second experiment, the densities of 1, 2, and 3 g L−1 of U. lactuca were cultivated in an integrated system with shrimp and monoculture treatment. Both experiments had 35 days of cultivation. There was no significant difference in macroalgae growth between the treatments with biofloc and von Stosch culture medium. In the integrated culture, the density of 1 g L−1 showed better nutrient absorption. Shrimp performance was not affected by macroalgae cultivation. In conclusion, the solids did not affect the growth of the macroalgae, and it could be cultivated in a biofloc system for nitrate uptake in integrated culture with shrimp.

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“…Under intensive aquaculture activities and due to the high density of farming, fish are usually exposed to a variety of stressful conditions, such as pathogen invasion, water quality deterioration, handling and confinement (Khanjani et al, 2022). The response to stress in fish is characterized by various physiological responses that lead to neuroendocrine activation and a subsequent cascade of metabolic and physiological changes (Petrovici et al, 2020;Plhalova et al, 2018Plhalova et al, , 2020Sadoul & Geffroy, 2019).…”

Section: Dietary Nanoliposome-coated Astaxanthin (Mg Kgmentioning

confidence: 99%

Effects of dietary nanoliposome‐coated astaxanthin on haematological parameters, immune responses and the antioxidant status of rainbow trout (Oncorhynchus mykiss)

Besharat,

Islami,

Soltani

et al. 2024

Veterinary Medicine & Sci

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BackgroundAstaxanthin is the most prevalent carotenoid in the marine environment and is widely used as an additive in formulated aquafeeds.ObjectivesA 60‐day feeding trial was conducted to consider the effect of dietary nanoliposome‐coated astaxanthin (NA) on haematological parameters, serum antioxidant activities and immune responses of rainbow trout, Oncorhynchus mykiss.MethodsA total of 450 healthy fish weighing 31.00 ± 2.09 g were randomly assigned in triplicate (30 fish per replicate) to 5 dietary treatments: 0 (control), 25.00, 50.00, 75.00, and 100.00 mg kg−1 NA.ResultsFish fed the diet supplemented with 50.00 mg kg−1 NA exhibited the highest values of red blood cells, white blood cells, haemoglobin and haematocrit of 1.64 ± 0.01 × 106 mm−3, 5.54 ± 0.21 × 103 mm−3, 8.73 ± 0.24 g dL−1 and 46.67% ± 0.88%, respectively, which were significantly higher than those fed the basal diet (p < 0.05). The lowest and highest percentages of lymphocytes (67.67% ± 0.33%) and neutrophils (27.33% ± 1.20%) were also obtained in fish fed 50.00 mg kg−1 NA compared to those fed the basal diet (p < 0.05). Fish receiving diet supplemented with 50.00 mg kg−1 NA revealed the highest serum activity in superoxide dismutase, catalase, glutathione peroxidase, lysozyme and alternative complement and the lowest level of total cholesterol, cortisol, aspartate aminotransferase and alanine aminotransferase than fish receiving the basal diet (p < 0.05). Serum immunoglobulin (Ig) and ACH50 contents significantly increased with increasing dietary NA supplementation to the highest values of 43.17 ± 1.46 and 293.33 ± 2.03 U mL−1, respectively, in fish fed diet supplemented with 50 mg kg−1 NA (p < 0.05).ConclusionsSupplementation of NA in rainbow trout diet at 50 mg kg−1 exhibited a positive effect on haematological parameters, antioxidant capacity and immune responses. Administration of such dosage can enhance rainbow trout immune responses against unfavourable or stressful conditions, for example disease outbreaks, hypoxic condition, thermal stress and sudden osmotic fluctuations, which usually happen in an intensive culture system.

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Integrated multitrophic aquaculture (IMTA) as an environmentally friendly system for sustainable aquaculture: functionality, species, and application of biofloc technology (BFT)

Cited by 52 publications

References 166 publications

Development and Diversity of Epibiont Assemblages on Cultivated Sugar Kelp (Saccharina latissima) in Relation to Farming Schedules and Harvesting Techniques

Development and Diversity of Epibiont Assemblages on Cultivated Sugar Kelp (Saccharina latissima) in Relation to Farming Schedules and Harvesting Techniques

Influence of Total Suspended Solids on the Growth of the Sea Lettuce Ulva lactuca Integrated with the Pacific White Shrimp Litopenaeus vannamei in a Biofloc System

Effects of dietary nanoliposome‐coated astaxanthin on haematological parameters, immune responses and the antioxidant status of rainbow trout (Oncorhynchus mykiss)

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