Multidisciplinary, Aquatic Science, Animal Science and Zoology, Insect Science
28
Scopus Publications
Scopus Publications
Methylcellulose Bionanocomposite Films Incorporated with Zein Nanoparticles Containing Propolis and Curcumin for Functional Packaging Michael Ramos Nunes, Cleonice Gonçalves da Rosa, Gabriel Salvador, Sarah Cardoso de Oliveira Teixeira, Maria Clara Marinho da Costa, Aline da Rosa Almeida, Vanessa Valgas dos Santos, Ana Emília Siegloch, Fernando Domingo Zinger, Jaqueline Suave, Dachamir Hotza Polysaccharides, 2025 The increasing demand for sustainable alternatives to non-biodegradable plastic packaging is driving the development of active packaging based on biopolymers such as methylcellulose. In this study, innovative methylcellulose nanocomposite films incorporating zein nanoparticles loaded with propolis and curcumin were developed for active packaging applications. The zein nanoparticles revealed excellent physicochemical properties, with a zeta potential above 30 mV, suggesting adequate stability. Transmission electron microscopy confirmed nanoparticles containing curcumin and propolis with uniform sizes ranging from approximately 130 to 140 nm with low polydispersity. Release studies revealed that approximately 25% of the curcumin and 35% of the propolis were released from the nanoparticles within 24 h. The release mechanism was best described by the Korsmeyer–Peppas model, suggesting a sustained release profile. The nanoparticles reduced the hydrophobicity and rigidity of the films, as evidenced by a lower elastic modulus and higher percentage elongation, thereby suggesting greater flexibility. Fourier Transform Infrared Spectroscopy (FTIR) analysis revealed the incorporation of bioactive compounds in the polymer matrix. Differential scanning calorimetry (DSC) revealed the thermal parameters of the synthesized films. Furthermore, the films exhibited antibacterial and antioxidant activities, making them highly suitable for use as biodegradable active packaging.
Aquatic insects in subtropical streams: the role of different grassland ecosystems and local environmental descriptors TAINARA R. MENNA-BARRETO, ANA EMÍLIA SIEGLOCH, SANDRO SANTOS, TIAGO G. DOS SANTOS, MARCOS ANDRÉ P. VELLOSO, MARCIA REGINA SPIES Anais Da Academia Brasileira De Ciencias, 2024 Organisms can respond to environmental gradients from local to landscape features. Aquatic insects are particularly affected by watershed peculiarities due to their dependence on microhabitat conditions. However, these relationships are poorly understood in lotic ecosystems of subtropical grasslands, limiting water resources management and bioassessment proposals. Here, we investigated how local stream environment and variations in landscape types affect the assemblage structure of a bioindicator insect group, face to the spatial proximity of the sampled locations. We sampled immatures of Ephemeroptera, Plecoptera, and Trichoptera in streams along the Brazilian Pampa biome, recording environmental descriptors in different grassland ecosystem types. The structure of aquatic insect assemblages differed across grassland types, with specific dominant genera associated with each landscape. Spatially-structured water physicochemical descriptors explained a significant amount of variation in assemblage data. Our findings suggest that grassland ecosystem type delimitations capture ecological attributes, influencing watershed features important to EPT assemblage structuration. Moreover, we highlight the importance of niche-based process structuring EPT assemblages along grassland ecosystem types of Pampa biome. In addition, we encourage using aquatic insects in bioassessment of lotic waters to assess local and landscape environmental impacts. We strongly recommend considering the grassland ecosystem schedule for water resources management and bioassessment proposals.
Comparison of the drinking water standard for pesticides of the Brazil with other countries Dinoraide Mota de Oliveira, Lenita Agostinetto, Ana Emilia Siegloch Heliyon, 2023 The objective was to compare the types and concentrations of pesticides allowed in the water potability standard for human supply in Brazil with other countries considered to be the largest consumers of pesticides in dollars invested in purchase/trade. This is a descriptive and documentary study, with data collection in regulations available in official government websites in Brazil, USA, China, Japan, France, Germany, Canada, Argentina, India, Italy, and World Health Organization (WHO). Since Germany, France and Italy are part of the European Union (EU), the legislative resolution of the European Parliament was adopted. Pesticides number and maximum permitted values (MPV) differ between the countries and WHO. In the Brazilian ordinance there are forty pesticides, a number like the USA, Canada, China, and WHO, but that represents only 8% of the total pesticides registered for agricultural use in Brazil. When comparing the ordinance of Brazil with EU the values are only the same for Aldrin + Dieldrin. For other, amounts between 2 and 5000 times more are allowed in Brazil. Brazilian regulations do not establish a total value for the mixture of pesticides in water, only individual limits, which together can reach 1677.13 μg/L, while in EU standards it is only 0.5 μg/L. The study showed discrepancies of the pesticides allowed in water potability standard of the Brazil with other countries, but features 12 pesticides with the same concentrations as WHO guidelines, thus, a worldwide standardization in water potability regulations is necessary to promote health and reducing risk of exposure.
DISPOSAL OF PHARMACEUTICAL WASTE BY THE RURAL POPULATION Paulo Cesar Rausch, Lenita Agostinetto, Ana Emilia Siegloch Ambiente E Sociedade, 2023 Resumo O descarte inadequado de medicamentos vencidos e sobras de tratamentos podem contaminar o ambiente e comprometer a saúde humana, porém, a implementação da logística reversa para os medicamentos é um desafio aos municípios brasileiros. O objetivo deste estudo foi caracterizar o descarte de medicamentos pela população rural do município de Correia Pinto/SC. A pesquisa foi do tipo quantitativa descritiva-transversal, com coleta de dados a campo a partir da aplicação de um questionário a 156 moradores da área rural. Os resultados mostraram que o saneamento básico é precário, pois 64,7% das pessoas consomem água sem tratamento e não são atendidas pela coleta de resíduos, apesar de 94,9% utilizar a fossa séptica como tratamento do esgoto. Elevado percentual da população (63,43%) relataram a utilização diária de medicamentos. Cerca de 75% descartam as sobras do tratamento medicamentoso e os medicamentos vencidos de forma inadequada. Os dados levantados podem contribuir com as estratégias de implementação do sistema de logística reversa dos medicamentos domiciliares, além de mostrar as lacunas do saneamento básico rural.
12,500+ and counting: biodiversity of the Brazilian Pampa Bianca O. Andrade, William Dröse, Cassiana Alves de Aguiar, Elisa Teixeira Aires, Diego Janisch Alvares, Rosa Lia Barbieri, Claudio José Barros de Carvalho, Marie Bartz, Fernando Gertum Becker, Glayson Ariel Bencke, Anelise Beneduzi, Jorge Bernardo Silva, Betina Blochtein, Ilsi Iob Boldrini, Piter Kehoma Boll, Juçara Bordin, Rosa Mara Borges da Silveira, Márcio Borges Martins, Camila Bosenbecker, João Braccini, Bruna Braun, Rosângela Brito, George G. Brown, Henrique Mallmann Büneker, Cristiano Roberto Buzatto, Adriano Cavalleri, Sonia Zanini Cechin, Patrick Colombo, Reginaldo Constantino, Cíntia Fernanda da Costa, Marina S. Dalzochio, Marcelo Gehlen de Oliveira, Rafael Antunes Dias, Luana Amaral dos Santos, Adriane Da Fonseca Duarte, Juliano Lessa Pinto Duarte, Jaqueline Durigon, Mayara Escobar Da Silva, Priscila Porto Alegre Ferreira, Talita Ferreira, Juliano Ferrer, Viviane G. Ferro, Carla Suertegaray Fontana, Marcelo Duarte Freire, Thales Renato Ochotorena Freitas, Daniel Galiano, Marinês Garcia, Tiago Gomes Dos Santos, Lucas Roberto Pereira Gomes, Felipe Gonzatti, Marco Silva Gottschalk, Gustavo Graciolli, Camille E. Granada, Martin Grings, Pablo Santos Guimarães, Ingrid Heydrich, Samanta Iop, João André Jarenkow, Patrícia Jungbluth, Márcia Isabel Käffer, Lucas Augusto Kaminski, Diego Costa Kenne, Frederico Dutra Kirst, Tiago Kütter Krolow, Rodrigo Ferreira Krüger, Bruno Busnello Kubiak, Ana Maria Leal-Zanchet, Daniel Loebmann, Dióber Borges Lucas, Elaine Maria Lucas, André Luís Luza, Ibere Farina Machado, Bruno Madalozzo, Renan Maestri, Luiz R. Malabarba, Raúl Maneyro, Marco Antonio Tonus Marinho, Roberta Marques, Kimberly Da Silva Marta, Diego Da Silveira Martins, Giovana Da Silva Martins, Thiago Rambo Martins, Anderson Santos de Mello, Ramon Luciano Mello, Milton De Souza Mendonça Junior, Ana Beatriz Barros de Morais, Felipe F. F. Moreira, Leonardo Felipe Bairos Moreira, Luciano De A. Moura, Michelle Helena Nervo, Ricardo Ott, Patrícia Paludo, Luciane M. P. Passaglia, Eduardo Périco, Erika Sant'Anna Petzhold, Mateus M. Pires, Jean Lucas Poppe, Fernando Marques Quintela, Mateus Raguse-Quadros, Maria João Ramos Pereira, Samuel Renner, Felipe B. Ribeiro, José Ricardo Inacio Ribeiro, Everton Nei Lopes Rodrigues, Patrícia E. S. Rodrigues, Helena Piccoli Romanowski, Tatiana Petersen Ruschel, Suelen Da Silva Alves Saccol, Marcoandre Savaris, Fernanda Schmidt Silveira, Hermes José Schmitz, Ana Emilia Siegloch, Ricardo Russo Siewert, Pedro Joel Silva da Silva Filho, Aline G. Soares, Alexandre Somavilla, Patrícia Sperotto, Marcia Regina Spies, Flávia Pereira Tirelli, Alexandro Marques Tozetti, Laura Verrastro, Cleusa Vogel Ely, Ândrio Zafalon Da Silva, Caroline Zank, Edison Zefa, Gerhard E. Overbeck Frontiers of Biogeography, 2023 Knowledge on biodiversity is fundamental for conservation strategies. The Brazilian Pampa region, located in subtropical southern Brazil, is neglected in terms of conservation, and knowledge of its biodiversity is fragmented. We aim to answer the question: how many, and which, species occur in the Brazilian Pampa? In a collaborative effort, we built species lists for plants, animals, bacteria, and fungi that occur in the Brazilian Pampa. We included information on distribution patterns, main habitat types, and conservation status. Our study resulted in referenced lists totaling 12,503 species (12,854 taxa, when considering infraspecific taxonomic categories [or units]). Vascular plants amount to 3,642 species (including 165 Pteridophytes), while algae have 2,046 species (2,378 taxa) and bryophytes 316 species (318 taxa). Fungi (incl. lichenized fungi) contains 1,141 species (1,144 taxa). Animals total 5,358 species (5,372 taxa). Among the latter, vertebrates comprise 1,136 species, while invertebrates are represented by 4,222 species. Our data indicate that, according to current knowledge, the Pampa holds approximately 9% of the Brazilian biodiversity in an area of little more than 2% of Brazil’s total land. The proportion of species restricted to the Brazilian Pampa is low (with few groups as exceptions), as it is part of a larger grassland ecoregion and in a transitional climatic setting. Our study yielded considerably higher species numbers than previously known for many species groups; for some, it provides the first published compilation. Further efforts are needed to increase knowledge in the Pampa and other regions of Brazil. Considering the strategic importance of biodiversity and its conservation, appropriate government policies are needed to fund studies on biodiversity, create accessible and constantly updated biodiversity databases, and consider biodiversity in school curricula and other outreach activities.
First island species of Hyalella (Amphipoda, Hyalellidae) from Florianópolis, state of Santa Catarina, Southern Brazil CAROLINA RANGEL, AUREA LUIZA LEMES DA SILVA, ANA EMÍLIA SIEGLOCH, MÁRCIO LIMBERGER, DANIELA DA SILVA CASTIGLIONI Zootaxa, 2022 The Hyalella comprises a group of freshwater amphipods endemic to the Americas. In Brazil, the greatest diversity of species known so far is concentrated in the state of Rio Grande do Sul, but recently discoveries were made in the neighboring state of Santa Catarina. The present work describes the first island species of the genus Hyalella in Brazil and the fifth with occurrence in the state of Santa Catarina. The species was found in streams of two watersheds, located at the Monumento Natural Municipal da Lagoa do Peri, an important environmental protection area on the island of Florianópolis, Southern Brazil. Hyalella insulae n. sp. shows the following characters: inner face of propodus of gnathopod 1 with 7 serrate setae, gnathopod 2 with propodus ovate, peduncle of uropod 3 with 10 cuspidate setae, telson rectangular, wider than long, with 6 cuspidate setae and 2 plumose setae laterally close to each distal seta. H. insulae n. sp. differs from the other species with occurrence in Santa Catarina, H. catarinensis, H. rioantensis, H. sambaqui and H. lagoana, mostly concerning to the number and shape of setae of the gnathopods, uropods and telson. A comparison was also made with species from the neighboring states, Rio Grande do Sul and Paraná. The description of H. insulae n. sp. in the present study contributes to increasing the knowledge of the Hyalella diversity in the state of Santa Catarina, little known so far.
Pesticides and farmers’ health: an analysis of variables related to management and property ARYANE EVARISTO, DANIELLE O. PEDROSO, NILVA L.S. RECH, LARISSA M. BOMBARDI, BRUNA F. SILVA, ANA E. SIEGLOCH, LENITA AGOSTINETTO Anais Da Academia Brasileira De Ciencias, 2022 The objective is to verify the effects of pesticides on the health of farmers in the southern region of Brazil, as well as the possible symptoms and cases of intoxication. This study has a quantitative, descriptive and exploratory approach, carried out in 12 agricultural locations in the municipality of Serra Catarinense. This research was approved by the research ethics committee and was applied through a structured questionnaire to 79 farmers who grow grains in the conventional cultivation system. The pesticide most used by farmers was glyphosate, followed by acephate. Of the individuals, 21.5% reported that they had suffered poisoning by pesticides by the respiratory route (58.8%). In addition, 28% had three symptoms of intoxication, demonstrating possible probable cases of intoxication. And 41% of workers reported headaches as a predominant symptom in applications with the use of pesticides, followed by dizziness/vertigo (16%). Farmers who use PPE during the preparation of the pesticide spray are neither chronic diseases (p<0.003) nor psychological problems (p<0.000). All four individuals who had cancer, all also eat while applying pesticides (p<0.049). The exposure to pesticides causes changes in the organism of those exposed, using them more vulnerable to health problems.
Influence of microhabitat on diversity and distribution of Ephemeroptera, Plecoptera, and Trichoptera in subtropical forest streams Rafael Schmitt, Aurea Luiza Lemes da Silva, Luís Carlos Pinto de Macedo Soares, Mauricio Mello Petrucio, Ana Emília Siegloch Studies on Neotropical Fauna and Environment, 2020 The distribution of aquatic insects is influenced by several environmental features, especially water quality and substrate. Diversity and distribution of the aquatic community and the distribution of the feeding functional groups (FFGs) of Ephemeroptera, Plecoptera and Trichoptera (EPT) in four microhabitats from low-order streams on a subtropical island were analyzed. Samples were taken with a Surber sampler and environmental descriptors – water temperature (°C), dissolved oxygen (mg/L−1), electrical conductivity (µS.cm−1), depth (cm) and organic matter – were recorded. The distribution of EPT genera was analyzed by a Canonical Analysis of Principal Coordinates, and the relationship of EPT genera and FFGs with the microhabitats was studied using Indicators Species Analysis. Environmental features were analyzed using Redundancy Analysis and BIO-ENV. Results showed that the EPT community structure and FFGs differed between microhabitats in summer and winter, and their occurrence was associated with physical structure habitat and water quality. During the winter, there was a greater abundance of EPT genera, and the community was clearly distinguished among the four microhabitats. Moreover, there was an association of specific genera with particular substrates along the streams. The present study indicated that habitat structure is an important determinant of the EPT composition insects in subtropical streams.
Environmental drivers and composition of assemblages of immature odonates (Insecta) in a subtropical island in southern Brazil Mateus Marques Pires, Ana Emília Siegloch, Malva Isabel Medina Hernández, Maurício Mello Petrucio Acta Limnologica Brasiliensia, 2020 Aim Describe the diversity of immature stages of Odonata (Insecta) in streams from a subtropical island in southern Brazil and investigate the influence of environmental variables on the composition of their assemblages. Methods Eleven low-order streams (1st to 3rd order) were sampled in two conservation units located in the island of Santa Catarina (southern Brazil) between 2010 and 2012. Immature specimens of Odonata were collected using a Surber sampler. The influence of water abiotic parameters and habitat structure (mesohabitats: riffle vs. pool areas, microhabitats: litter vs. stone substrates) on the composition of Odonata was tested through the seasons using ordination diagrams and redundancy analysis. Results Nine odonate genera from seven families were recorded in the study region. The genera Desmogomphus, Epigomphus (Gomphidae), Heteragrion (Heteragrionidae) and Perilestes (Perilestidae) have their first records described for the state of Santa Catarina. Additionally, biological notes are provided for other odonate genera concerning substrate use. The composition of Odonata communities changed over the seasons and they were influenced by water temperature and velocity. Additionally, odonate composition differed significantly between microhabitats (substrate type) and mesohabitats (riffle vs. pool areas) in the streams studied. Conclusions The lower genera richness of Odonata recorded in the island of Santa Catarina in relation to other Brazilian subtropical streams is probably associated with the insular condition of the study region. This study also demonstrated that substrate (organic and inorganic) and mesohabitat (riffle and pool) types were important drivers of the composition of the fauna of immature odonates, evidencing the role of climate and habitat structure in influencing subtropical stream insect communities.
Concentration of aluminum, iron and manganese in urban rivers located in a coverage area of the Guarani Aquifer in Lages - SC Periodico Tche Quimica, 2019
Plant litter dynamics in the forest-stream interface: Precipitation is a major control across tropical biomes Alan M. Tonin, José F. Gonçalves, Paulino Bambi, Sheyla R. M. Couceiro, Lorrane A. M. Feitoza, Lucas E. Fontana, Neusa Hamada, Luiz U. Hepp, Vânia G. Lezan-Kowalczuk, Gustavo F. M. Leite, Aurea L. Lemes-Silva, Leonardo K. Lisboa, Rafael C. Loureiro, Renato T. Martins, Adriana O. Medeiros, Paula B. Morais, Yara Moretto, Patrícia C. A. Oliveria, Evelyn B. Pereira, Lidiane P. Ferreira, Javier Pérez, Mauricio M. Petrucio, Deusiano F. Reis, Renan S. Rezende, Nadia Roque, Luiz E. P. Santos, Ana E. Siegloch, Gabriela Tonello, Luz Boyero Scientific Reports, 2017
