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Trindade PAA, Brabo LDM, Andrades R, Azevedo-Santos VM, Andrade MC, Candore L, Cabigliera SB, Chelazzi D, Cincinelli A, Jeffres CA, Giarrizzo T. First record of plastic ingestion by a freshwater stingray. Sci Total Environ 2023; 880:163199. [PMID: 37004767 DOI: 10.1016/j.scitotenv.2023.163199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/15/2023] [Accepted: 03/28/2023] [Indexed: 05/27/2023]
Abstract
The abundance and dispersion of plastic particles in aquatic ecosystems has become pervasive resulting in the incorporation of these materials into food webs. Here we describe the first record of plastic ingestion by the freshwater white-blotched river stingray Potamotrygon leopoldi (Potamotrygonidae), an endemic and threatened species in the Xingu River, Amazon basin. Potamotrygonidae stingrays inhabit exclusively Neotropical rivers, occupying rocky substrate habitats and feeding mainly on benthic macroinvertebrates. The gastrointestinal tract of 24 stingrays were analyzed, 16 (66.6 %) of which contained plastic particles. In total, 81 plastic particles were recorded and consisted of microplastics (< 5 mm, n = 57) and mesoplastics (5-25 mm, n = 24). The plastic particles found were classified into fibers (64.2 %, n = 52) and fragments (35.8 %, n = 29). The predominant color was blue (33.3 %, n = 27), followed by yellow (18.5 %, n = 15), white (14.8 %, n = 12), black (13.6 %, n = 11), green (6.2 %, n = 5), transparent (4.9 %, n = 4), pink, grey and brown (2.5 %, n = 2, each) and orange (1.2 %, n = 1). No significant correlation was observed between the number of plastic particles and the body size. Eight types of polymers were identified in the plastic particles analyzed using 2D FTIR Imaging. The most frequent polymer was artificial cellulose fiber. This is the first report of plastic ingestion by freshwater elasmobranchs in the world. Plastic waste has become an emerging problem in aquatic ecosystems globally and our results provide an important datapoint for freshwater stingrays in the Neotropics.
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Affiliation(s)
- Paulo A A Trindade
- Grupo de Ecologia Aquática, Espaço Inovação do Parque de Ciência e Tecnologia Guamá (PCT Guamá), Belém, Pará, Brazil; Núcleo de Ecologia Aquática e Pesca da Amazônia-NEAP, Universidade Federal do Pará-UFPA, Belém, Pará, Brazil.
| | - Lúcio D M Brabo
- Grupo de Ecologia Aquática, Espaço Inovação do Parque de Ciência e Tecnologia Guamá (PCT Guamá), Belém, Pará, Brazil; Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil
| | - Ryan Andrades
- Grupo de Ecologia Aquática, Espaço Inovação do Parque de Ciência e Tecnologia Guamá (PCT Guamá), Belém, Pará, Brazil
| | - Valter M Azevedo-Santos
- Grupo de Ecologia Aquática, Espaço Inovação do Parque de Ciência e Tecnologia Guamá (PCT Guamá), Belém, Pará, Brazil; Programa de Pós-Graduação em Biodiversidade, Ecologia e Conservação, Universidade Federal do Tocantins-UFT, CEP 77500-000, Porto Nacional, Tocantins, Brazil; Faculdade Eduvale de Avaré, Avaré, São Paulo, Brazil
| | - Marcelo C Andrade
- Núcleo de Ecologia Aquática e Pesca da Amazônia-NEAP, Universidade Federal do Pará-UFPA, Belém, Pará, Brazil; Centro de Ciências Humanas, Naturais, Saúde e Tecnologia, Universidade Federal do Maranhão, 65200-000 Pinheiro, Maranhão, Brazil
| | - Laura Candore
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy
| | - Serena B Cabigliera
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy
| | - David Chelazzi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy
| | - Alessandra Cincinelli
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy
| | - Carson A Jeffres
- Center for Watershed Sciences, University of California, Davis, CA, USA
| | - Tommaso Giarrizzo
- Grupo de Ecologia Aquática, Espaço Inovação do Parque de Ciência e Tecnologia Guamá (PCT Guamá), Belém, Pará, Brazil; Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil
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Cunha FA, Sampaio I, Carneiro J, Vogt RC, Mittermeier RA, Rhodin AG, Andrade MC. A New South American Freshwater Turtle of the Genus Mesoclemmys from the Brazilian Amazon (Testudines: Pleurodira: Chelidae). Chelonian Conservation and Biology 2022. [DOI: 10.2744/ccb-1524.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fábio A.G. Cunha
- Programa de Pós-Graduação em Ecologia Aquática e Pesca/PPGEAP, Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará/UFPA, Campus Universitário do Guamá, Rua Augusto Corrêa, 01, Cep.: 66.075-110, Belém, Pará, Brazil [; andrade
| | - Iracilda Sampaio
- Laboratório de Genética e Biologia Molecular, Instituto de Estudos Costeiros, Universidade Federal do Pará/UFPA, Campus Bragança, Alameda Leandro Ribeiro, Cep.: 68.600-000, Bragança, Pará, Brazil [; ]
| | - Jeferson Carneiro
- Laboratório de Genética e Biologia Molecular, Instituto de Estudos Costeiros, Universidade Federal do Pará/UFPA, Campus Bragança, Alameda Leandro Ribeiro, Cep.: 68.600-000, Bragança, Pará, Brazil [; ]
| | - Richard C. Vogt
- Coordenação de Biodiversidade/CBIO, Instituto Nacional de Pesquisa da Amazônia/INPA, Av. André Araújo, 2936, Cep.: 69.067-375, Manaus, Amazonas, Brazil
| | | | - Anders G.J. Rhodin
- Chelonian Research Foundation, 564 Chittenden Drive, Arlington, Vermont 05250 USA []
| | - Marcelo C. Andrade
- Programa de Pós-Graduação em Ecologia Aquática e Pesca/PPGEAP, Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará/UFPA, Campus Universitário do Guamá, Rua Augusto Corrêa, 01, Cep.: 66.075-110, Belém, Pará, Brazil [; andrade
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Chuctaya J, Nitschke P, Andrade MC, Wingert J, Malabarba LR. A new species of Geophagus (Teleostei: Cichlidae): Naming a cichlid species widely known in the aquarium hobby as 'Geophagus sp. Tapajos red head'. J Fish Biol 2022; 101:1388-1404. [PMID: 36059085 DOI: 10.1111/jfb.15207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
A new species of Geophagus sensu stricto is described from the Tapajos River basin, Brazil, elevating the number of species of the genus to 21. The new species is of commercial importance and is known in the aquarist trade as Geophagus 'red head'. The new species is diagnosed using an integrative approach, based on mitochondrial DNA analysis along with morphological evidence. The new species is distinguished from all congeners by the absence of markings on the head, the bar pattern composed by nine vertical bars on the flanks and the presence of distinct longitudinal bands in the caudal fin. Additionally, it shows a genetic distance of at least 2.0% in cytochrome b gene sequences from its closest congeners. Molecular analysis including most genera of Cichlidae from South America corroborates that the new species belongs to the group of Geophagus sensu stricto.
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Affiliation(s)
- Junior Chuctaya
- Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Laboratorio de Ictiología, Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Pedro Nitschke
- Departamento de Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Marcelo C Andrade
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Belém, Brazil
- Centro de Ciências Humanas, Naturais, Saúde e Tecnologia, Universidade Federal do Maranhão, Pinheiro, Maranhão, Brazil
| | - Juliana Wingert
- Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luiz R Malabarba
- Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Keppeler FW, Andrade MC, Trindade PAA, Sousa LM, Arantes CC, Winemiller KO, Jensen OP, Giarrizzo T. Early impacts of the largest Amazonian hydropower project on fish communities. Sci Total Environ 2022; 838:155951. [PMID: 35588808 DOI: 10.1016/j.scitotenv.2022.155951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/04/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
Hydropower is a threat to freshwater fishes. Despite a recent boom in dam construction, few studies have assessed their impact on mega-diverse tropical rivers. Using a before-after study design, we investigated the early impacts of the Belo Monte hydroelectric complex, the third-largest hydropower project in the world, on fishes of the Xingu River, a major clear-water tributary of the lower Amazon. We explored impacts across different river sectors (upstream, reservoir, reduced flow sector, and downstream) and spatial scales (individual sectors vs. all sectors combined) using joint species distribution models and different facets of diversity (taxonomic, functional, and phylogenetic). After 5 years of the Belo Monte operation, species richness declined ~12% in lentic and ~16% in lotic environments. Changes in abundance were of less magnitude (<4%). Effects were particularly negative for species of the families Serrasalmidae (mainly pacus), Anostomidae (headstanders), Auchenipteridae, and Pimelodidae (catfishes), whereas no taxonomic group consistently increased in richness or abundance. The reservoir and downstream sectors were the most impacted, with declines of ~24-29% in fish species richness, overall reductions in fish body size and trophic level, and a change in average body shape. Richness and abundance also declined in the reduced river flow, and changes in size, shape, and position of fins were observed. Relatively minor changes were found in the upstream sector. Variation in functional and phylogenetic diversity following river impoundment was subtle; however, across sectors, we found a reduction in functional divergence, indicating a decline in the abundance of species located near the extremities of community functional space. This may be the first sign of an environmental filtering process reducing functional diversity in the region. Greater changes in flow and habitats are expected as hydropower operations ramp up, and continued monitoring is warranted to understand the full scope and magnitude of ecological impacts.
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Affiliation(s)
- Friedrich W Keppeler
- Center for Limnology, University of Wisconsin-Madison, Madison, WI, USA; Núcleo de Ecologia Aquática e Pesca da Amazônia, Federal University of Pará, Belém, Pará, Brazil.
| | - Marcelo C Andrade
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Federal University of Pará, Belém, Pará, Brazil
| | - Paulo A A Trindade
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Federal University of Pará, Belém, Pará, Brazil
| | - Leandro M Sousa
- Laboratório de Ictiologia de Altamira, Federal University of Pará, Altamira, Pará, Brazil
| | - Caroline C Arantes
- Division of Forestry and Natural Resources, West Virginia University, Morgantown, WV, USA
| | - Kirk O Winemiller
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX, USA
| | - Olaf P Jensen
- Center for Limnology, University of Wisconsin-Madison, Madison, WI, USA
| | - Tommaso Giarrizzo
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Federal University of Pará, Belém, Pará, Brazil; Instituto de Ciências do Mar (LABOMAR), Federal University of Ceará, Fortaleza, Brazil
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Azevedo-Santos VM, Brito MFG, Manoel PS, Perroca JF, Rodrigues-Filho JL, Paschoal LRP, Gonçalves GRL, Wolf MR, Blettler MCM, Andrade MC, Nobile AB, Lima FP, Ruocco AMC, Silva CV, Perbiche-Neves G, Portinho JL, Giarrizzo T, Arcifa MS, Pelicice FM. Plastic pollution: A focus on freshwater biodiversity. Ambio 2021; 50:1313-1324. [PMID: 33543362 PMCID: PMC8116388 DOI: 10.1007/s13280-020-01496-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/29/2020] [Accepted: 12/28/2020] [Indexed: 05/23/2023]
Abstract
Plastics are dominant pollutants in freshwater ecosystems worldwide. Scientific studies that investigated the interaction between plastics and freshwater biodiversity are incipient, especially if compared to the marine realm. In this review, we provide a brief overview of plastic pollution in freshwater ecosystems around the world. We found evidence of plastic ingestion by 206 freshwater species, from invertebrates to mammals, in natural or semi-natural ecosystems. In addition, we reported other consequences of synthetic polymers in freshwater ecosystems-including, for instance, the entanglement of animals of different groups (e.g., birds). The problem of plastic pollution is complex and will need coordinated actions, such as recycling programs, correct disposal, stringent legislation, regular inspection, replacement of synthetic polymers with other materials, and ecological restoration. Current information indicates that the situation in freshwater ecosystems may be as detrimental as the pollution found in the ocean, although highly underappreciated.
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Affiliation(s)
| | - Marcelo F G Brito
- Programa de Pós-Graduação Em Ecologia E Conservação, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Pedro S Manoel
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, São Paulo, Brazil
| | - Júlia F Perroca
- Laboratório de Biologia de Camarões Marinhos E de Água Doce (LABCAM), Universidade Estadual Paulista "Júlio de Mesquita Filho", Bauru, SP, Brazil
- Laboratório de Ecologia, Universidade Do Estado de Santa Catarina, Laguna, SC, Brazil
| | - Jorge Luiz Rodrigues-Filho
- Laboratório de Ecologia, Universidade Do Estado de Santa Catarina, Laguna, SC, Brazil
- Programa de Pós-Graduação Em Planejamento Territorial e Desenvolvimento Socioambiental, Universidade Do Estado de Santa Catarina, Laguna, SC, Brazil
| | - Lucas R P Paschoal
- Faculdade de Tecnologia Nilo de Stéfani (FATEC), Jaboticabal, SP, Brazil
| | | | - Milena R Wolf
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, São Paulo, Brazil
| | | | - Marcelo C Andrade
- Núcleo de Ecologia Aquática E Pesca da Amazônia and Laboratório de Biologia Pesqueira E Manejo Dos Recursos Aquáticos, Grupo de Ecologia Aquática, Universidade Federal Do Pará, 2651 Avenida Perimetral, Belém, PA, Brazil
| | - André B Nobile
- Ictiológica Consultoria Ambiental ME/LTDA, Botucatu, SP, Brazil
| | - Felipe P Lima
- Ictiológica Consultoria Ambiental ME/LTDA, Botucatu, SP, Brazil
| | - Ana M C Ruocco
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, São Paulo, Brazil
| | | | - Gilmar Perbiche-Neves
- Laboratório de Plâncton, Departamento de Hidrobiologia, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Jorge L Portinho
- Departamento de Ecologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Rio Claro, SP, Brazil
| | - Tommaso Giarrizzo
- Núcleo de Ecologia Aquática E Pesca da Amazônia and Laboratório de Biologia Pesqueira E Manejo Dos Recursos Aquáticos, Grupo de Ecologia Aquática, Universidade Federal Do Pará, 2651 Avenida Perimetral, Belém, PA, Brazil
| | - Marlene S Arcifa
- Departamento de Biologia, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Fernando M Pelicice
- Núcleo de Estudos Ambientais, Universidade Federal Do Tocantins, Porto Nacional, TO, Brazil
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Gonçalves M, Schmid K, Andrade MC, Andrades R, Pegado T, Giarrizzo T. Are the tidal flooded forests sinks for litter in the Amazonian estuary? Mar Pollut Bull 2020; 161:111732. [PMID: 33075695 DOI: 10.1016/j.marpolbul.2020.111732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/23/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Pollution in aquatic ecosystems is rapidly becoming one of the world's greatest ecological challenges. Given their intermediate position between terrestrial and marine environments, estuarine systems are especially vulnerable to human pollution. Amazonian estuaries have unique characteristics, such as heterogeneous landscape intercalating tracts of vegetation with sandbanks and beaches. In the present study, we provide the first qualitative and quantitative data on litter retention in an Amazonian estuary, comparing vegetated and bare substrate areas. Overall, 12,003 items were recovered, with a mean ± SD density and weight of 1.69 ± 2.16 items/m2 and 78.08 ± 93.11 g/m2, respectively. Plastic was the principal material (80.97%) found. The highest number of items was found in the vegetated habitats (73.11%), indicating these areas as the most affected by plastic pollution. Our findings provide important insights for future research planning and implementation of effective public policies for conservation and management of these important ecosystems.
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Affiliation(s)
- Myckey Gonçalves
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Av. Perimetral 2651, Terra Firme, 66077830 Belém, Pará, Brazil.
| | - Kurt Schmid
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Av. Perimetral 2651, Terra Firme, 66077830 Belém, Pará, Brazil
| | - Marcelo C Andrade
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Av. Perimetral 2651, Terra Firme, 66077830 Belém, Pará, Brazil
| | - Ryan Andrades
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Av. Perimetral 2651, Terra Firme, 66077830 Belém, Pará, Brazil; Laboratório de Ictiologia, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, Goiabeiras, 29075-910 Vitória, Espírito Santo, Brazil
| | - Tamyris Pegado
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Av. Perimetral 2651, Terra Firme, 66077830 Belém, Pará, Brazil
| | - Tommaso Giarrizzo
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Av. Perimetral 2651, Terra Firme, 66077830 Belém, Pará, Brazil
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Silva GMF, Andrade MC, Silva BRM, Palheta IS, Gonçalves LB, Rocha RM, Ferreira MAP. Has a river dam affected the life-history traits of a freshwater prawn? Ecol Evol 2020; 10:6536-6548. [PMID: 32724531 PMCID: PMC7381555 DOI: 10.1002/ece3.6388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 04/22/2020] [Accepted: 04/24/2020] [Indexed: 12/03/2022] Open
Abstract
In recent years, species richness and diversity in aquatic ecosystems has declined as environments are increasingly impacted by anthropic actions. Freshwater prawns are well adapted to survive in a disturbed and heterogeneous environment. For instance, Amazon river prawn (Macrobrachium amazonicum) populations vary in migratory behavior between rivers and estuaries, depending on factors such as dams. However, there is limited information on the influence of environmental conditions on life-history traits of this species, which we investigate here using two distinct and unconnected aquatic systems, a dammed river and an estuary, in the eastern Brazilian Amazon. The biological characteristics of M. amazonicum populations in the two environments were compared and related to environmental parameters, which differed significant differences between the two environments and between seasons. Dissolved oxygen, precipitation, and temperature varied most significantly with the seasons in both the estuary and river. M. amazonicum prawns in the estuary were larger and heavier than those in the river during rainy periods. The mass-length ratios and condition factor varied significantly between the M. amazonicum populations in the estuary and river, with negative allometric growth (grows faster in length than in weight) predominating in both populations, and condition factor was better in the estuary for males and in the river for females. The relative frequencies of occurrence of the different female maturation stages and the male morphotypes were related to precipitation and turbidity in both environments and also to salinity in the estuary. In these two distinct aquatic systems, the abiotic parameters determined by the seasonal precipitation cycle profoundly influenced the development of this crustacean, despite its ecological plasticity. Overall, the study showed that river damming triggered environmental changes in the freshwater river ecosystem and played a key role in determining the life-history characteristics of M. amazonicum in these contrasting aquatic systems.
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Affiliation(s)
- Gicelle M. F. Silva
- Laboratório de Imunohistoquímica e Biologia do DesenvolvimentoUniversidade Federal do ParáBelémBrazil
- Laboratório de Ultra Estrutura CelularUniversidade Federal do ParáBelémBrazil
| | - Marcelo C. Andrade
- Laboratório de Biologia Pesqueira e Manejo dos Recursos AquáticosGrupo de Ecologia AquáticaBelémBrazil
| | - Breno R. M. Silva
- Laboratório de Imunohistoquímica e Biologia do DesenvolvimentoUniversidade Federal do ParáBelémBrazil
| | - Ingrid S. Palheta
- Laboratório de Imunohistoquímica e Biologia do DesenvolvimentoUniversidade Federal do ParáBelémBrazil
| | | | - Rossineide M. Rocha
- Laboratório de Imunohistoquímica e Biologia do DesenvolvimentoUniversidade Federal do ParáBelémBrazil
- Laboratório de Ultra Estrutura CelularUniversidade Federal do ParáBelémBrazil
| | - Maria A. P. Ferreira
- Laboratório de Imunohistoquímica e Biologia do DesenvolvimentoUniversidade Federal do ParáBelémBrazil
- Laboratório de Ultra Estrutura CelularUniversidade Federal do ParáBelémBrazil
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Ota RP, Machado VN, Andrade MC, Collins RA, Farias IP, Hrbek T. Integrative taxonomy reveals a new species of pacu (Characiformes: Serrasalmidae: Myloplus) from the Brazilian Amazon. Neotrop ichthyol 2020. [DOI: 10.1590/1982-0224-20190112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT Pacus of the genus Myloplus represent a formidable taxonomic challenge, and particularly so for the case of M. asterias and M. rubripinnis, two widespread and common species that harbor considerable morphological diversity. Here we apply DNA barcoding and multiple species discovery methods to find candidate species in this complex group. We report on one well-supported lineage that is also morphologically and ecologically distinct. This lineage represents a new species that can be distinguished from congeners by the presence of dark chromatophores on lateral-line scales, which gives the appearance of a black lateral line. It can be further diagnosed by having 25-29 branched dorsal-fin rays (vs. 18-24), 89-114 perforated scales from the supracleithrum to the end of hypural plate (vs. 56-89), and 98-120 total lateral line scales (vs. 59-97). The new species is widely distributed in the Amazon basin, but seems to have a preference for black- and clearwater habitats. This ecological preference and black lateral line color pattern bears a striking similarity to the recently described silver dollar Metynnis melanogrammus.
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Azevedo-Santos VM, Gonçalves GRL, Manoel PS, Andrade MC, Lima FP, Pelicice FM. Plastic ingestion by fish: A global assessment. Environ Pollut 2019; 255:112994. [PMID: 31541837 DOI: 10.1016/j.envpol.2019.112994] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/30/2019] [Accepted: 07/31/2019] [Indexed: 05/24/2023]
Affiliation(s)
- Valter M Azevedo-Santos
- Departamento de Zoologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, São Paulo, Brazil.
| | - Geslaine R L Gonçalves
- Departamento de Zoologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, São Paulo, Brazil
| | - Pedro S Manoel
- Departamento de Zoologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, São Paulo, Brazil
| | - Marcelo C Andrade
- Pós-Graduação em Ecologia Aquática e Pesca, and Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Felipe P Lima
- Laboratório de Biologia e Ecologia de Peixes, Departamento de Morfologia, Instituto de Biociências (IBB), Campus de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Botucatu, São Paulo, Brazil
| | - Fernando M Pelicice
- Núcleo de Estudos Ambientais, Universidade Federal do Tocantins, Porto Nacional, Tocantins, Brazil
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Andrade MC, Winemiller KO, Barbosa PS, Fortunati A, Chelazzi D, Cincinelli A, Giarrizzo T. First account of plastic pollution impacting freshwater fishes in the Amazon: Ingestion of plastic debris by piranhas and other serrasalmids with diverse feeding habits. Environ Pollut 2019; 244:766-773. [PMID: 30388680 DOI: 10.1016/j.envpol.2018.10.088] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 10/17/2018] [Accepted: 10/18/2018] [Indexed: 06/08/2023]
Abstract
Reported here is the first evidence of plastic ingestion by freshwater fishes in the Amazon. Plastic bags, bottles, fishing gear, and other products are entering Amazonian water bodies and degrade into meso- and micro-plastic particles that may be ingested, either directly or indirectly via food chains, by fishes. Examination of stomach contents from 172 specimens of 16 serrasalmid species from lower Xingu River Basin revealed consumption of plastic particles by fishes in each of three trophic guilds (herbivores, omnivores, carnivores). Overall, about one quarter of specimens and 80% of species analyzed had ingested plastic particles ranging from 1 to 15 mm in length. Fourier transform infrared spectroscopy indicated 12 polymer types, including 27% identified as polyethylene, 13% polyvinyl chloride, 13% polyamide, 13% polypropylene, 7% poly(methyl methacrylate), 7% rayon, 7% polyethylene terephtalate, and 13% a blend of polyamide and polyethylene terephtalate. Dimensions of ingested plastic particles varied among trophic guilds, even though the frequency and mass of ingested particles were not significantly different among fishes with different feeding habits.
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Affiliation(s)
- Marcelo C Andrade
- Programa de Pós-Graduação em Ecologia Aquática e Pesca, and Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática, 2651 Avenida Perimetral, 66040-830, Universidade Federal do Pará, Belém, PA, Brazil.
| | - Kirk O Winemiller
- Program in Ecology and Evolutionary Biology, Department of Wildlife and Fisheries Sciences, and Winemiller Aquatic Ecology Lab, 454 Throckmorton Street, TX, 77840, Texas A&M University, College Station, USA
| | - Priscilla S Barbosa
- Programa de Pós-Graduação em Ecologia Aquática e Pesca, and Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática, 2651 Avenida Perimetral, 66040-830, Universidade Federal do Pará, Belém, PA, Brazil
| | - Alessia Fortunati
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Florence, Italy
| | - David Chelazzi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Florence, Italy; CSGI, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Florence, Italy
| | - Alessandra Cincinelli
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Florence, Italy; CSGI, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Florence, Italy
| | - Tommaso Giarrizzo
- Programa de Pós-Graduação em Ecologia Aquática e Pesca, and Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática, 2651 Avenida Perimetral, 66040-830, Universidade Federal do Pará, Belém, PA, Brazil
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11
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Andrade MC, López-Fernández H, Liverpool EA. New Myloplus from Essequibo River basin, Guyana, with discussion on the taxonomic status of Myleus pacu (Characiformes: Serrasalmidae). Neotrop ichthyol 2019. [DOI: 10.1590/1982-0224-20190026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT A new species in the serrasalmid genus Myloplus is described from the middle Mazaruni River, Essequibo River basin, Guyana. The new species is similar to Myleus pacu and Myloplus planquettei in its silver to purplish black coloration and its overall morphology, and has a putative syntopic distribution with those species. The new species is, however, readily distinguishable from the other two by meristic counts of the unpaired fins and by differences in color pattern, primarily in males. Additionally, we provide comments on Myleus pacu and other species that have been confounded under that name.
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Andrade MC, Jégu M, Buckup PA, Netto-Ferreira AL. A new Myleus species (Characiformes: Serrasalmidae) from the Rio Tapajós basin, Brazil. J Fish Biol 2018; 92:1902-1914. [PMID: 29624697 DOI: 10.1111/jfb.13628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Myleus pachyodus, a new serrasalmid species, is described from the Rio Teles Pires and Rio Jamanxim, both tributaries of the Rio Tapajós in Mato Grosso and Pará states, Brazil. The new species differs from all congeners by having a remarkable ontogenetic thickening of the teeth shifting from slender incisiform in juveniles to thick bulky teeth at standard length ≥ 100 mm, whereas congeners present slender, antero-posteriorly flat teeth throughout all life stages. The new species further differs from congeners by having 18-20 branched dorsal-fin rays, by the lack of a diastema between contralateral outer series of premaxillary teeth and by the presence of 16-25 prepelvic spines, with the anteriormost spine never reaching the vertical through the pectoral-fin origin.
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Affiliation(s)
- M C Andrade
- Laboratório de Ictiologia do Grupo de Ecologia Aquática, and Programa de Pós-Graduação em Ecologia Aquática e Pesca, Instituto de Ciências Biológicas, Universidade Federal do Pará, Avenida Perimetral, 2651, Terra-Firme, 66077-830, Belém, PA, Brazil
| | - M Jégu
- Laboratoire d'Icthyologie, Biologie des Organismes et Ecosystèmes Aquatiques, Institut de Recherche pour le Développement, Muséum National d'Histoire Naturelle, CP26, 43 Rue Cuvier, 75231, Paris, Cedex 05, France
| | - P A Buckup
- Departamento de Vertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, 20940-040, Rio de Janeiro, RJ, Brazil
| | - A L Netto-Ferreira
- Laboratório de Ictiologia, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, 91501-970, Porto Alegre, RS, Brazil
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13
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Machado VN, Collins RA, Ota RP, Andrade MC, Farias IP, Hrbek T. One thousand DNA barcodes of piranhas and pacus reveal geographic structure and unrecognised diversity in the Amazon. Sci Rep 2018; 8:8387. [PMID: 29849152 PMCID: PMC5976771 DOI: 10.1038/s41598-018-26550-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 05/10/2018] [Indexed: 11/25/2022] Open
Abstract
Piranhas and pacus (Characiformes: Serrasalmidae) are a charismatic but understudied family of Neotropical fishes. Here, we analyse a DNA barcode dataset comprising 1,122 specimens, 69 species, 16 genera, 208 localities, and 34 major river drainages in order to make an inventory of diversity and to highlight taxa and biogeographic areas worthy of further sampling effort and conservation protection. Using four methods of species discovery-incorporating both tree and distance based techniques-we report between 76 and 99 species-like clusters, i.e. between 20% and 33% of a priori identified taxonomic species were represented by more than one mtDNA lineage. There was a high degree of congruence between clusters, with 60% supported by three or four methods. Pacus of the genus Myloplus exhibited the most intraspecific variation, with six of the 13 species sampled found to have multiple lineages. Conversely, piranhas of the Serrasalmus rhombeus group proved difficult to delimit with these methods due to genetic similarity and polyphyly. Overall, our results recognise substantially underestimated diversity in the serrasalmids, and emphasise the Guiana and Brazilian Shield rivers as biogeographically important areas with multiple cases of across-shield and within-shield diversifications. We additionally highlight the distinctiveness and complex phylogeographic history of rheophilic taxa in particular, and suggest multiple colonisations of these habitats by different serrasalmid lineages.
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Affiliation(s)
- Valeria N Machado
- Laboratório de Evolução e Genétic Animal, Departamento de Genética, Universidade Federal do Amazonas, Av., General Rodrigo Otávio Jordão, 3000, 69077-000, Manaus, AM, Brazil
| | - Rupert A Collins
- Laboratório de Evolução e Genétic Animal, Departamento de Genética, Universidade Federal do Amazonas, Av., General Rodrigo Otávio Jordão, 3000, 69077-000, Manaus, AM, Brazil.
- School of Biological Sciences, University of Bristol, Life Sciences Building, 24 Tyndall Avenue, Bristol, BS8 1TQ, UK.
| | - Rafaela P Ota
- Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2936, CP 2223, Petrópolis, 69080-971, Manaus, AM, Brazil
| | - Marcelo C Andrade
- Programa de Pós-Graduação em Ecologia Aquática e Pesca, Instituto de Ciências Biológicas, Universidade Federal do Pará, Av. Perimetral, 2651, Terra Firme, 66040-830, Belém, PA, Brazil
| | - Izeni P Farias
- Laboratório de Evolução e Genétic Animal, Departamento de Genética, Universidade Federal do Amazonas, Av., General Rodrigo Otávio Jordão, 3000, 69077-000, Manaus, AM, Brazil
| | - Tomas Hrbek
- Laboratório de Evolução e Genétic Animal, Departamento de Genética, Universidade Federal do Amazonas, Av., General Rodrigo Otávio Jordão, 3000, 69077-000, Manaus, AM, Brazil.
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Andrade MC, Sousa LM, Ota RP, Jégu M, Giarrizzo T. Redescription and Geographical Distribution of the Endangered Fish Ossubtus xinguense Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River. PLoS One 2016; 11:e0161398. [PMID: 27662358 PMCID: PMC5035070 DOI: 10.1371/journal.pone.0161398] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 08/04/2016] [Indexed: 12/05/2022] Open
Abstract
The monotypic species Ossubtus xinguense was originally described based on scarce material putatively divided into juveniles and adults. Ossubtus xinguense has a restricted distribution and was previously known only from a few rapids downstream of the city of Altamira, in the Volta Grande stretch of the Middle Xingu River. Until recently, the species was rare in museums because its habitat (large rapids) is difficult to sample. Large-scale collecting efforts targeting rapids throughout the Xingu River basin have yielded an abundance of new material. Based on an analysis of the type series and freshly preserved specimens, we redescribe O. xinguense and provide detailed osteological descriptions along with comments about its relationships within Serrasalmidae. Furthermore, we expand the geographical distribution of the species and discuss its conservation status.
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Affiliation(s)
- Marcelo C. Andrade
- Universidade Federal do Pará, Cidade Universitária Professor José Silveira Netto, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia Aquática e Pesca, Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Belém, PA, Brazil
| | - Leandro M. Sousa
- Universidade Federal do Pará, Campus Universitário de Altamira, Faculdade de Ciências Biológicas, Laboratório de Ictiologia, Altamira, PA, Brazil
| | - Rafaela P. Ota
- Instituto Nacional de Pesquisas da Amazônia, Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Manaus, AM, Brazil
| | - Michel Jégu
- Institut de Recherche Pour le Développement, Biologie des Organismes et Ecosystèmes Aquatiques, Laboratoire d’Icthyologie, Muséum national d’Histoire naturelle, Paris, France
| | - Tommaso Giarrizzo
- Universidade Federal do Pará, Cidade Universitária Professor José Silveira Netto, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia Aquática e Pesca, Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Belém, PA, Brazil
- Universidade Federal do Pará, Campus Universitário de Altamira, Faculdade de Ciências Biológicas, Laboratório de Ictiologia, Altamira, PA, Brazil
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Andrade MC, Jégu M, Giarrizzo T. Tometes kranponhah and Tometes ancylorhynchus (Characiformes: Serrasalmidae), two new phytophagous serrasalmids, and the first Tometes species described from the Brazilian Shield. J Fish Biol 2016; 89:467-494. [PMID: 26725331 DOI: 10.1111/jfb.12868] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 11/05/2015] [Indexed: 06/05/2023]
Abstract
Two new species of Tometes from the Brazilian Shield rapids are described. Tometes kranponhah is endemic to the Xingu River basin, whereas Tometes ancylorhynchus occurs both in the Xingu and the Tocantins-Araguaia River basins. The two species are sympatric in the Xingu drainages and have many similarities in morphology and colouration. Major diagnostic differences are the dark pigmentation on the opercle of T. kranponhah and its distinct snout shape and arrangement of premaxillary teeth. In addition, T. kranponhah is a large fish that is abundant in the Xingu River, whereas T. ancylorhynchus is a medium-sized fish for which there are few records.
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Affiliation(s)
- M C Andrade
- Universidade Federal do Pará, Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Av. Perimetral 2651, 66040-830, Belém, PA, Brazil
- Programa de Pós-Graduação em Ecologia Aquática e Pesca, Universidade Federal do Pará, Av. Augusto Corrêa 1, 66075-110, Belém, PA, Brazil
| | - M Jégu
- Institut de Recherche pour le Développement, Biologie des Organismes et Ecosystèmes Aquatiques, Laboratoire d'Icthyologie, Muséum national d'Histoire naturelle, CP26, 43 rue Cuvier, 75231, Paris Cedex 05, France
| | - T Giarrizzo
- Universidade Federal do Pará, Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Av. Perimetral 2651, 66040-830, Belém, PA, Brazil
- Programa de Pós-Graduação em Ecologia Aquática e Pesca, Universidade Federal do Pará, Av. Augusto Corrêa 1, 66075-110, Belém, PA, Brazil
- Programa de Pós-Graduação em Biodiversidade e Conservação, Universidade Federal do Pará, Av. Cel. José Porfírio 2515, 68372-010, Altamira, PA, Brazil
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Andrade MC, Jégu M, Giarrizzo T. A new large species of Myloplus (Characiformes, Serrasalmidae) from the Rio Madeira basin, Brazil. Zookeys 2016:153-67. [PMID: 27110164 PMCID: PMC4829807 DOI: 10.3897/zookeys.571.5983] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Accepted: 01/19/2016] [Indexed: 11/12/2022] Open
Abstract
Myloplus zorroi sp. n. is described from the Rio Madeira Basin in Amazonia. The new species had been treated as an undescribed Tometes species because of the absence of a marked abdominal keel and few small spines forming its prepelvic serrae, features commonly found in the species of the Myleus clade of the Serrasalmidae (species of genera Myleus, Mylesinus, Ossubtus and Tometes) and also in species of Utiaritichthys. Myloplus zorroi sp. n. shares the following characters with its congeners and Utiaritichthys: molariform teeth (versus incisiform teeth in Myleus clade members); a labial row of premaxillary teeth separated from lingual row by an internal gap (versus absence of internal gap between premaxillary teeth rows); and an ascending process of premaxilla wide from its base to the tip (versus ascending process tapering from its base to the tip). Like other Myloplus species, Myloplus zorroi sp. n. differs from Utiariticthys by having a deeper body, approximately 60% of standard length (versus usually less than 50% of standard length). Considering all the morphological evidence, including the presence of 13-19 low spines forming the prepelvic serrae in Myloplus zorroi sp. n. versus more than 20 high spines forming a marked prepelvic keel in other species of Mylopus, the new species is here assigned to Myloplus. Comparisons of the new species with nominal species of Myloplus, representatives of the Myleus clade, and other related taxa are provided.
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Affiliation(s)
- Marcelo C Andrade
- Universidade Federal do Pará, Cidade Universitária Prof. José Silveira Netto. Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática. Avenida Perimetral, 2651, Terra Firme, 66077830. Belém, PA, Brazil; Programa de Pós-Graduação em Ecologia Aquática e Pesca. Universidade Federal do Pará, Instituto de Ciências Biológicas. Cidade Universitária Prof. José Silveira Netto. Avenida Augusto Corrêa, 1, Guamá, 66075110. Belém, PA, Brazil
| | - Michel Jégu
- Institut de Recherche pour le Développement, Biologie des Organismes et Ecosystèmes Aquatiques, UMR BOREA, Laboratoire d´Icthyologie, Muséum national d'Histoire naturelle, MNHN, CP26, 43 rue Cuvier, 75231 Paris Cedex 05, France
| | - Tommaso Giarrizzo
- Universidade Federal do Pará, Cidade Universitária Prof. José Silveira Netto. Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática. Avenida Perimetral, 2651, Terra Firme, 66077830. Belém, PA, Brazil; Programa de Pós-Graduação em Ecologia Aquática e Pesca. Universidade Federal do Pará, Instituto de Ciências Biológicas. Cidade Universitária Prof. José Silveira Netto. Avenida Augusto Corrêa, 1, Guamá, 66075110. Belém, PA, Brazil; Programa de Pós-Graduação em Biodiversidade e Conservação. Universidade Federal do Pará, Faculdade de Ciências Biológicas. Avenida Cel. José Porfírio, 2515, São Sebastião, 68372010. Altamira, PA, Brazil
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Andrade MC, Jesus AJS, Giarrizzo T. Length-weight relationships and condition factor of the eaglebeak pacu Ossubtus xinguense Jégu, 1992 (Characiformes, Serrasalmidae), an endangered species from Rio Xingu rapids, northern Brazil. BRAZ J BIOL 2015; 75:102-5. [PMID: 26691082 DOI: 10.1590/1519-6984.01214bm] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 09/06/2014] [Indexed: 11/22/2022] Open
Abstract
This study reports on the length-weight relationships and condition factor for the endangered rheophilic fish Ossubtus xinguense Jégu from Rio Xingu rapids. This species is threatened by construction of the third largest hydroelectric in the world, the Belo Monte dam close to the city of Altamira, northern Brazil. Specimens were collected in the dry season between July 2012 and September 2012. Male specimens have body length larger than females, atypical in serrasalmid fishes, and different length-weight relationships were found between adult and juvenile specimens. This study presents the first biological characteristics for O. xinguense.
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Affiliation(s)
- M C Andrade
- Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Universidade Federal do Pará, Belém, PA, Brazil
| | - A J S Jesus
- Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Universidade Federal do Pará, Belém, PA, Brazil
| | - T Giarrizzo
- Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Universidade Federal do Pará, Belém, PA, Brazil
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Andrade MC, Giarrizzo T, Jegu M. Tometes camunani (Characiformes: Serrasalmidae), a new species of phytophagous fish from the Guiana Shield, rio Trombetas basin, Brazil. Neotrop ichthyol 2013. [DOI: 10.1590/s1679-62252013000200008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new species of Serrasalmidae, Tometes camunani, is described from the upper drainages of the rio Trombetas basin, Pará State, Brazil. The new species is distinguished from its congeners by having neurocranium with a slight concavity at the level of the frontal bone (vs. concavity absent, dorsal profile of neurocranium straight). It can be further distinguished from its congeners by having teeth with central cusp taller and acute (vs. central cusp shorter and with rounded edge in T. trilobatus), a terminal mouth (vs. upturned mouth in T. lebaili), and 12-26 prepelvic spines (vs. 0-9 in T. makue). The new species is strictly rheophilic like other species of Tometes, and occurs exclusively in the rapids of shield rivers, complex and fragile biotopes that are threatened by anthropogenic activities. An identification key to the species of the Myleus group is provided
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Affiliation(s)
| | | | - Michel Jegu
- Museum National d'Histoire Naturelle, France
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Mangia CMF, Martins AFCF, Loretti AP, Sousa RM, Andrade MC. Adverse events associated with long-term ketamine use in pediatric septic shock. Crit Care 2011. [PMCID: PMC3124159 DOI: 10.1186/cc10157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Mangia CMF, Jose LPS, Monteiro FL, Fernandes AT, Biasi P, Menezes F, Lima EL, Oliveira C, Bueno F, Paiva P, Andrade MC. Influence of vasopressor agent in pediatric septic shock mortality. Crit Care 2011. [PMCID: PMC3124166 DOI: 10.1186/cc10164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Mangia CMF, Kissoon N, Branchini OA, Andrade MC, Kopelman BI, Carcillo J. Epidemiology of hospitalized pediatric bacterial sepsis in Brazil: a trend analysis from 1992 to 2006. Crit Care 2011. [PMCID: PMC3124172 DOI: 10.1186/cc10170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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22
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Mangia CMF, Sousa RM, Loretti AP, Martins AFCF, Oliveira NF, Lima EL, Andrade MC. Hyponatremia severe and symptomatic in a critically ill infant. Crit Care 2011. [PMCID: PMC3124210 DOI: 10.1186/cc10208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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23
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Andrade MC, Albernaz MJS, Araújo MSS, Santos BP, Teixeira-Carvalho A, Faria AMC, Martins-Filho OA. Short-term administration of ethanol in mice deviates antigen presentation activity towards B cells. Scand J Immunol 2009; 70:226-37. [PMID: 19703012 DOI: 10.1111/j.1365-3083.2009.02289.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Alcohol has a variety of short- and long-term effects on cell-mediated and humoral immune response. Herein, we have characterized the impact of high-dose EtOH administration on phenotypic and functional features of murine APC subsets, including dendritic cell (DC), macrophages and B cells. Impaired cytokine synthesis and Leishmania-phagocytosis was observed in peritoneal macrophages following EtOH administration. Moreover, EtOH exposure led to decreased levels of splenic myeloid DC and increased percentage of macrophages with no changes in splenic lymphoid DC and B cells. Adverse effects of short-term EtOH administration also resulted in impaired OVA-endocytosis by DC and macrophages. In contrast, EtOH consumption upregulates OVA-internalization by B cells. These changes on APC hierarchy may play a role shifting the fate of the immune response after EtOH ingestion. In addition to an overall downregulation of Toll-like receptor-TLR-4 expression by splenic APC, a downregulation of TLR-2 expression in macrophages was observed. Moreover, EtOH exposure altered the expression of co-signalling molecules on splenic APC, downregulating CD40 on macrophages and upregulating CD80 on B cells, with no impact on DC subsets. The net result of changes in TLR-mediated and co-stimulatory signals may determine the altered immunological status induced by acute consumption of alcohol. A direct impact of high-dose EtOH administration in the activation status of splenic CD4(+) T cells was observed. Together, our results demonstrated that short-term high-dose EtOH administration has differential impact on APC populations, downregulating splenic macrophages and DC activity but up-regulating B lymphocyte function as APC, and ultimately yielding a micro-environment that led to increased activation of CD4(+) T cells.
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Affiliation(s)
- M C Andrade
- Laboratório de Biomarcadores de Diagnóstico e Monitoração, Centro de Pesquisas René Rachou, FIOCRUZ, Belo Horizonte, 30190-002 MG, Brazil.
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Anibal FF, Rogerio AP, Malheiro A, Machado ER, Martins-Filho OA, Andrade MC, Soares EG, Medeiros AI, Faccioli LH. Impact of MK886 on Eosinophil Counts and Phenotypic Features in Toxocariasis. Scand J Immunol 2007; 65:344-52. [PMID: 17386025 DOI: 10.1111/j.1365-3083.2007.01911.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Experimental toxocariasis was used as a model of eosinophil migration. Mice inoculated with 200 Toxocara canis eggs were treated with the leukotriene inhibitor MK886 (1 mg/kg/day). Eosinophils were counted in peripheral blood (PB), peritoneal cavity (PC) and bronchoalveolar lavage fluid (BALF) samples on post-infection days 3, 6, 12, 18, 24 and 36. Eosinophil expression of Mac-1 and VLA-4 was analysed in PB and PC samples. We found that T. canis infection induced systemic eosinophilia from post-infection day 3, peaking on days 6, 12 and 24 in PB, PC and BALF samples respectively. Eosinophilia was more pronounced in PB and PC samples than in BALF samples, and MK886 downregulated eosinophilia to varying degrees in the different sample types. In PB and PC samples, T. canis infection caused early upregulation of Mac-1 with late changes in the VLA-4 profile, whereas MK886 had opposite effects. The distinct time-dependent eosinophilia peaks and differential involvement of leukotrienes in integrin expression demonstrate that, despite the systemic eosinophilia triggered by T. canis infection, inflammatory responses vary by compartment.
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Affiliation(s)
- F F Anibal
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
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Andrade MC, Menezes JS, Cassali GD, Martins-Filho OA, Cara DC, Faria AMC. Alcohol-induced gastritis prevents oral tolerance induction in mice. Clin Exp Immunol 2006; 146:312-22. [PMID: 17034584 PMCID: PMC1942068 DOI: 10.1111/j.1365-2249.2006.03207.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2006] [Indexed: 11/26/2022] Open
Abstract
Despite several reports on the immunological relationship between inflammatory bowel diseases and immunoregulatory mechanisms in the gut, systematic studies addressing the impact of inflammatory processes in the gastric mucosa on events, such as oral tolerance, are still limited. Herein, we report the establishment of a novel murine model of gastritis induced by short-term administration of ethanol. The major immumological features of this clinical entity are characterized, as well as its impact on the induction of oral tolerance. Our data demonstrate that ethanol ingestion during 4 consecutive days triggered an acute inflammatory reaction in the stomach referred as ethanol-induced gastritis and characterized by hyperaemia, oedema and mixed mononuclear/polymorphonuclear cell infiltrate. Besides local immunological changes, such as high levels of gastric interleukin (IL)-4 and interferon (IFN)-gamma, systemic alterations are also observed, including increased IL-4 synthesis, enhanced levels of serum IgE and absence of IL-10 production by spleen cells. Moreover, ethanol-induced gastritis prevents oral tolerance induction to ovalbumin (OVA) as demonstrated by unaltered anti-OVA humoral and cellular immune responses in treated animals. Tissue eosinophilia after footpad immunization with OVA suggests that oral treatment with ethanol induced an allergic-type reaction. Taken together, our findings indicate that short-term ethanol ingestion is associated with gastric inflammatory events able to break immunoregulatory mechanisms that maintain mucosal homeostasis and oral tolerance.
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Affiliation(s)
- M C Andrade
- Departamento de Bioquímica e Imunologia, ICB, UFMG, Belo Horizonte MG, Brazil
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Muniz AMS, Manfio EF, Andrade MC, Nadal J. Principal component analysis of vertical ground reaction force: a powerful method to discriminate normal and abnormal gait and assess treatment. Conf Proc IEEE Eng Med Biol Soc 2006; 2006:2683-2686. [PMID: 17946131 DOI: 10.1109/iembs.2006.259820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This study aims at testing the application of principal component analysis (PCA) in the ground reaction force (GRF) in discriminating the gait pattern between normal and abnormal subjects, and assessing the rehabilitation treatment. The sample was composed by 31 subjects, organized into two groups: a control group (CG) of 25 normal and a group (FG) of six patients with lower limb fractures, which was considered before (FGB) and after (FGA) a treadmill physiotherapeutic treatment. The vertical component of GRF data was collected with an instrumentized treadmill. PCA method was applied and the first two coefficients (PCC) were obtained for the three groups. The region of CG values was separated in the PCC plane with the elliptical area of displacement and with a linear threshold between CG and FGB obtained by stepwise logistic regression. Results show that all values of FGA moved towards CG region from the corresponding FGB position, indicating the potential power of PCA in discriminating between normal and abnormal gait and objectively evaluating the effects of rehabilitation treatment.
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Affiliation(s)
- A M S Muniz
- Biomed. Eng. Program, Fed. Univ. of Rio de Janeiro.
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Saldanha JCS, Gargiulo DL, Silva SS, Carmo-Pinto FH, Andrade MC, Alvarez-Leite JI, Teixeira MM, Cara DC. A model of chronic IgE-mediated food allergy in ovalbumin-sensitized mice. Braz J Med Biol Res 2004; 37:809-16. [PMID: 15264023 DOI: 10.1590/s0100-879x2004000600005] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Food allergy is most frequently the result of IgE-mediated hypersensitivity reactions. Here, we describe a chronic model in which some of the intestinal and systemic consequences of continuous egg white solution ingestion by ovalbumin-sensitized eight-week-old BALB/c mice, 6 animals per group, of both sexes, were investigated. There was a 20% loss of body weight that began one week after antigen exposure and persisted throughout the experiment (3 weeks). The sensitization procedure induced the production of anti-ovalbumin IgG1 and IgE, which were enhanced by oral antigen exposure (129% for IgG1 and 164% for IgE, compared to sensitization values). Intestinal changes were determined by jejunum edema at 6 h (45% Evans blue extravasation) and by a significant eosinophil infiltration with a peak at 48 h. By day 21 of continuous antigen exposure, histological findings were mild, with mast cell hyperplasia (100%) and increased mucus production (483%). Altogether, our data clearly demonstrate that, although immune stimulation was persistently occurring in response to continuous oral antigen exposure, regulatory mechanisms were occurring in the intestinal mucosa, preventing overt pathology. The experimental model described here reproduces the clinical and pathological changes of mild chronic food allergy and may be useful for mechanistic studies of this common clinical condition.
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Affiliation(s)
- J C S Saldanha
- Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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Abstract
The gut mucosa is a major site of contact with antigens from food and microbiota. Usually, these daily contacts with natural antigens do not result in inflammatory reactions; instead they result in a state of systemic hyporesponsiveness named oral tolerance. Inflammatory bowel diseases (IBD) are associated with the breakdown of the immunoregulatory mechanisms that maintain oral tolerance. Several animal models of IBD/colitis are available. In mice, these include targeted disruptions of the genes encoding cytokines, T cell subsets or signaling proteins. Colitis can also be induced by intrarectal administration of chemical substances such as 2,4,6-trinitrobenzene sulfonic acid in 50% ethanol. We report here a novel model of colitis induced by intrarectal administration of 50% ethanol alone. Ethanol-treated mice develop an inflammatory reaction in the colon characterized by an intense inflammatory infiltrate in the mucosa and submucosa of the large intestine. They also present up-regulation of both interferon gamma (IFN-gamma) and interleukin-4 (IL-4) production by cecal lymph node and splenic cells. These results suggest a mixed type of inflammation as the substrate of the colitis. Interestingly, cells from mesenteric lymph nodes of ethanol-treated mice present an increase in IFN-gamma production and a decrease in IL-4 production indicating that the cytokine balance is altered throughout the gut mucosa. Moreover, induction of oral tolerance to ovalbumin is abolished in these animals, strongly suggesting that ethanol-induced colitis interferes with immunoregulatory mechanisms in the intestinal mucosa. This novel model of colitis resembles human IBD. It is easy to reproduce and may help us to understand the mechanisms involved in IBD pathogenesis.
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Affiliation(s)
- M C Andrade
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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Andrade MC. [Demographic growth and the urban network of the Northeast]. Rev Geogr Inst Panam Geogr Hist 2002:103-14. [PMID: 12178404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Abstract
In order to determine the best type of rabies vaccine to use as a booster, 78 serological samples from singly vaccinated cattle were analyzed by counterimmunoelectrophoresis technique. The animals were divided into several groups, received the first vaccine dose with modified live virus vaccine (ERA strain) and were revaccinated with inactivated virus or modified live virus vaccines. Boosters were given at 2, 4, 8, 12 and 16 weeks following first vaccination. Results showed high titres in the cases of booster with inactivated vaccine. In all cases, however, detectable antibody titres declined quickly.
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Affiliation(s)
- A N Oliveira
- Centro de Controle de Zoonoses Paulo Dacorso Filho, Rio de Janeiro, RJ, 23550-050, Brasil.
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Abstract
In order to evaluate the immune response produced by rabies vaccines in new world nonhuman primates, thirty marmosets (Callithrix sp) were divided into five groups of six individuals and submitted to five different antirabies vaccination schemes using two distinct commercially available animal vaccines. The first was produced in suckling mouse brain (Fuenzalida and Palacios), and the second in NIL-2 cell culture. Post-vaccine serological monitoring was carried out periodically. The results showed that the Fuenzalida and Palacios vaccine was not able to protect the animals when using a single dose or even with a booster. But when submitted to a vaccination routine similar to that used for humans, the marmosets showed detectable antibodies, and only one succumbed to rabies after being challenged. In addition, the vaccine produced in NIL-2 cell culture induced high antibody levels in all vaccinated animals and all animals survived the viral challenge.
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Affiliation(s)
- M C Andrade
- Laboratório de Biologia Animal, Empresa de Pesquisa Agropecuária do Estado do Rio de Janeiro, Niterói, RJ, Brasil.
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Andrade MC, Quinto BM, Carmona AK, Ribas OS, Boim MA, Schor N, Casarini DE. Purification and characterization of angiotensin I-converting enzymes from mesangial cells in culture. J Hypertens 1998; 16:2063-74. [PMID: 9886898 DOI: 10.1097/00004872-199816121-00031] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Previous analysis of the angiotensin I-converting enzyme (ACE) gene in this laboratory showed that primary mesangial cells in culture are able to express ACE mRNA. Moreover, ACE is produced as an ectoenzyme and as a secreted form of the enzyme, indicating a potential effect of local angiotensin II production on glomerular microcirculation. The aim of this study was to purify and characterize the secreted and intracellular ACE forms from mesangial cells in culture. METHODS AND RESULTS Medium from Wistar rats mesangial cells was collected (third passage), incubated for 20 h with RPMI without fetal bovine serum and concentrated 29 times in an Amicon concentrator. The concentrated medium was submitted to gel filtration on an AcA-34 column and two peaks (ACE1, mol. wt 130 000 and ACE2, 60000) with ACE on activity Hippuryl-His-Leu and Z-Phe-His-Leu were separated. The mesangial cells were collected and ACE enzyme was extracted using Triton X-114, followed by centrifugation and concentration. The supernatant was submitted to the same chromatography as described above and two peaks with ACE activity (ACEInt1, mol. wt 130000 and ACEInt2, 68000) were separated. The purified ACE were inhibited by enalaprilat and captopril, two potent competitive inhibitors of ACE and by EDTA, using Hippuryl-His-Leu as a substrate. The Km values were 2 mM for ACE1 and ACE2 and 3 mM for ACEInt1 and ACEInt2. The enzymes ACE1 and ACE2 presented an optimum pH of 8.0 and ACEInt1 and ACEInt2 an optimum pH of 7.5. CONCLUSION The activities of full-length wild-type and N-domain ACE were characterized by the ratio of the hydrolysis of Z-Phe-His-Leu/Hippuryl-His-Leu, which was 1 and 4, respectively. The ratios found for ACE1, ACE2, ACEInt1 and ACEInt2 in the present study were similar to those described above, suggesting that mesangial cells, besides showing the presence of intracellular ACE, are able to secret both full-length wild-type ACE and N-domain ACE. Thus, they may potentially have an effect, not only on bradykinin and angiotensin I (ACE wild-type), but also on substance P, luteinizing hormone-releasing hormone and Met-enkephalin to interfere with glomerular haemodynamics and with the renal microcirculation.
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Affiliation(s)
- M C Andrade
- Department of Medicine, EPM, UNIFESP, São Paulo, SP, Brazil
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