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Ivã Guidini Lopes

Ivã Guidini Lopes
Ingredient Odyssey - EntoGreen · I&D

Biologist, PhD in Aquaculture

About

19
Publications
6,697
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155
Citations
Introduction
Biologist with a PhD degree in Aquaculture (São Paulo State University - UNESP), with special focus on waste management methods such as composting and the treatment of organic waste using black soldier fly larvae. (UNESP).
Additional affiliations
February 2016 - February 2020
São Paulo State University
Position
  • PhD
Description
  • My PhD was developed with different waste management methods aiming to mitigate risks of aquaculture solid organic waste.
Education
December 2017 - March 2020
São Paulo State University
Field of study
  • Soil Fertility

Publications

Publications (19)
Article
Traditional farming practices are highly dependent on chemical fertilizers, which might deteriorate soils when used in the long term. In face of the increasing generation of biodegradable materials worldwide, the adoption of technologies that harvest nutrients from waste complies with the concepts of a circular economy. This study evaluated the eff...
Article
The aim of this study was to evaluate the potential agronomic value of black soldier fly larvae frass (BSFF) as an organic fertiliser in short-cycle crops, using lettuce as the test plant. Treatments consisted in applying different fertilisers (BSFF and mineral) at different doses and combinations. The experiment was carried out for 42 days and pla...
Poster
Full-text available
Poster presented at SETAC Europe 32nd Annual Meeting 2022, involved in the project ENTOSAFE.
Article
Full-text available
Inadequately treated biodegradable waste is considered an environmental, social and economic threat worldwide, which call for great attention. Waste treatment with larvae of the black soldier fly (BSF, Hermetia illucens) complies with the concepts of circular economy, as it enables the transformation of these wastes into marketable products, closin...
Article
Estimating mineralization rates is one of the best ways to predict N availability over time. However, different methods can lead to distinct predictions, especially when different production systems are used. The aim of this study was to compare biological and chemical methods commonly used to estimate the potentially available N in a soil cultivat...
Book
Full-text available
Cartilha técnica sobre a compostagem de resíduos animais da aquicultura e aplicação dos compostos orgânicos obtidos com o processo em culturas agrícolas Technical book about the composting process of animal wastes from aquaculture production and the application of composts in agriculture
Article
Full-text available
This study evaluated the impact of feeding regimes on process performance and inactivation of microorganisms during treatment of aquaculture waste with black soldier fly (BSF) larvae. In three treatments (T1–T3), a blend of reclaimed bread and aquaculture waste was used as substrate for BSF larvae. In T1, the substrate was inoculated with four subt...
Article
Ethanol production is responsible for the generation of significant amounts of vinasse, a liquid organic waste that contains high concentrations of nitrogen (N). Its direct application in the soil is widely performed in agriculture, but the vinasse N transformations that occurs in the soil remains poorly understood. This study aimed at evaluating N...
Article
Aquaculture is a fast-growing activity that is generating increasing volumes of organic waste such as fish carcasses, which must be managed. In a study evaluating black soldier fly (BSF) larvae composting of this waste stream, we tested 21 combinations of reclaimed bread waste and aquaculture waste (with replacement increments of 5%). The best trea...
Article
Full-text available
Agro-industrial wastes are commonly used as nitrogen sources in agriculture, and its availability depends on the dynamics of nitrogen mineralization. The pH has great effects on soil nitrogen dynamics; thus, we hypothesized that the increase of pH would increase nitrogen mineralization and nitrification. The aim of this study was to evaluate the ef...
Article
Full-text available
Soil pH is one of the properties that mostly influences nitrification rates, and can be used as a tool for controlling this process, seen that depending on its extent it may lead to nitrogen (N) losses and subsequent contaminations. The aims of this study were to evaluate mineralization and nitrification of two soils at different pH levels. The exp...
Article
Full-text available
Nutritional deficiencies during a fish’s larval stage may lead to the emergence of skeletal anomalies, since essential nutrients are involved in the osteogenic process. The aim of this study was to evaluate the effects of two weaning periods on appearance of skeletal anomalies and growth and pacu larvae (Piaractus mesopotamicus) during its initial...
Article
Full-text available
Aquaculture is a fast growing activity in Brazil and around the world, which generates large amounts of waste from fingerling production to the final consumer. Among several possibilities for the management of these wastes, windrow composting stands out as a simple and low-cost method. In this study, sixteen composting piles were assembled with woo...
Article
Full-text available
Climate changes driven by greenhouse gas emissions have been occurring in an accelerated degree, affecting environmental dynamics and living beings. Among all affected biomes, the Amazon is particularly subjected to adverse impacts, such as temperature rises and water acidification. This study aimed to evaluate the impacts of predicted climate chan...
Article
Full-text available
The GABA-A receptor agonist midazolam is a compound widely used as a tranquilizer and sedative in mammals and reptiles. It is already known that this benzodiazepine produces small to intermediate heart rate (HR) alterations in mammals, however, its influence on reptiles’ HR remains unexplored. Thus, the present study sought to verify the effects of...
Technical Report
Full-text available
This technical article have informations about the generation and management of organic wastes in fish farming activities.
Article
Full-text available
The dynamics of fish supply for the world population is passing through a moment of decreasing fisheries and increasing aquaculture production, which in Brazil is favored by wide availability of water resources, great variety of species, favorable climate and by increased demand for this protein source. Nevertheless, fish consumption by Brazilian p...

Questions

Question (1)
Question
Composting organic wastes involves several organisms, not only microorganisms (e.g. vermicomposting), therefore I'd like to know if the treatment using the larvae of the black soldier fly (Hermetia illucens) can also be defined as a composting process.

Projects

Project (1)
Project
The project aims at reducing environmental issues concerning inadequate disposal of organic wastes by fish farmers. We work in producing high-quality fertilizers using fish carcasses and bulking agents, with the aim of using it to increase soil fertility and recovering degraded soils.