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1. The ichthyofauna of upper rio Capivari: defining conservation strategies based on the composition and distribution of fish species

Author

Paulo dos Santos Pompeu, Liana Sisi dos Reis, Cíntia Veloso Gandini, Rafael Couto Rosa de Souza, and Jana Menegassi del Favero

Subjects
Conservation units, Altitudinal gradients, Rio Grande, Reserve design, Zoology, QL1-991
Abstract

Although the rio Capivari basin is recognized as an area of great importance for the ichthyofauna, it lacks virtually every basic requirement for the definition of appropriate conservation strategies, since not even its species composition is known. The objective of this work is to determine the composition and distribution of fish species in the upper rio Capivari basin, relating them to the local physical features, and to evaluate the effectiveness of proposed conservations units, delimited based on areas of native vegetation remains, on the conservation of local ichthyofauna. During 2007, 50 different watercourses were sampled with gillnets, cast nets and kick nets. A total of 1308 individuals belonging to 41 species were captured. Degree of conservation, altitude and width were the parameters that best explained fish species richness. Considering the recently proposed boundaries for potential conservation units in the region only 15 or 20 out of 41 species would be found in the State Park and Environmental Protection Area respectively. In practice, the proposed conservation units would not be effective tools for fish conservation, since it would be located in mountainous areas of high altitude, of headwaters streams and where few species are found. In such context, the conservation of specific stretches of larger rivers is critical.

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2. Influence of environmental variables on stream fish fauna at multiple spatial scales

Author

Nara Tadini Junqueira, Diego Rodrigues Macedo, Rafael Couto Rosa de Souza, Robert Mason Hughes, Marcos Callisto, and Paulo Santos Pompeu

Subjects
Disturbed sites, Fish assemblages, Land use, Partial CCA, Physical habitat, Zoology, QL1-991
Abstract

ABSTRACT Effects of environmental variables at different spatial scales on freshwater fish assemblages are relatively unexplored in Neotropical ecosystems. However, those influences are important for developing management strategies to conserve fish diversity and water resources. We evaluated the influences of site- (in-stream) and catchment-scale (land use and cover) environmental variables on the abundance and occurrence of fish species in streams of the Upper Araguari River basin through use of variance partitioning with partial CCA. We sampled 38 1st to 3rd order stream sites in September 2009. We quantified site variables to calculate 11 physical habitat metrics and mapped catchment land use/cover. Site and catchment variables explained > 50% of the total variation in fish species. Site variables (fish abundance: 25.31%; occurrence: 24.51%) explained slightly more variation in fish species than catchment land use/cover (abundance: 22.69%; occurrence: 18.90%), indicating that factors at both scales are important. Because anthropogenic pressures at site and catchment scales both affect stream fish in the Upper Araguari River basin, both must be considered jointly to apply conservation strategies in an efficient manner.

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3. Neotropical freshwater fisheries : A dataset of occurrence and abundance of freshwater fishes in the Neotropics

Author

Lívia Helena Tonella, Renata Ruaro, Vanessa Salete Daga, Diego Azevedo Zoccal Garcia, Oscar Barroso Vitorino, Tatiana Lobato‐de Magalhães, Roberto Esser dos Reis, Fabio Di Dario, Ana Cristina Petry, Michael Maia Mincarone, Luciano Fogaça de Assis Montag, Paulo Santos Pompeu, Adonias Aphoena Martins Teixeira, Alberto Luciano Carmassi, Alberto J. Sánchez, Alejandro Giraldo Pérez, Alessandra Bono, Aléssio Datovo, Alexander S. Flecker, Alexandra Sanches, Alexandre Lima Godinho, Alexandre Matthiensen, Alexandre Peressin, Alexandre Wagner Silva Hilsdorf, Alexéia Barufatti, Alice Hirschmann, Aline Jung, Allan K. Cruz‐Ramírez, Alline Braga Silva, Almir Manoel Cunico, Amanda Saldanha Barbosa, Amauri de Castro Barradas, Ana Carolina Lacerda Rêgo, Ana Clara Sampaio Franco, Ana Paula Lula Costa, Ana Paula Vidotto‐Magnoni, Anderson Ferreira, Anderson Kassner Filho, André Batista Nobile, André Lincoln Barroso Magalhães, André Teixeira da Silva, Andréa Bialetzki, Andréa Cristina dos Santos Maroclo Gomes, Andrezza Bellotto Nobre, Armando Cesar Rodrigues Casimiro, Arturo Angulo Sibaja, Arthur Alexandre Capelli dos Santos, Átila Rodrigues de Araújo, Augusto Frota, Bárbara Angélio Quirino, Beatriz Moreira Ferreira, Bianca Weiss Albuquerque, Bruna Arbo Meneses, Brunno Tolentino Oliveira, Bruno Augusto Torres Parahyba Campos, Bruno Bastos Gonçalves, Bruno Busnello Kubiak, Bruno da Silveira Prudente, Bruno Gorini de Araujo Passos Pacheco, Bruno Kazuo Nakagawa, Bruno Tayar Marinho do Nascimento, Calebe Maia, Camila Cantagallo Devids, Carla Ferreira Rezende, Carla Muñoz‐Mendoza, Carlos A. Peres, Carlos Alberto de Sousa Rodrigues Filho, Carlos Alberto Santos de Lucena, Carlos Alexandre Fernandes, Carlos Benhur Kasper, Carlos Donascimiento, Carmino Emidio, Carolina Carrillo‐Moreno, Carolina Machado, Carolina Pera, Caroline Hartmann, Catherine M. Pringle, Cecília Gontijo Leal, Céline Jézéquel, Chris Harrod, Clarissa Alves da Rosa, Claudio Quezada‐Romegialli, Crisla Maciel Pott, Crislei Larentis, Cristiane A. S. Nascimento, Cristina da Silva Gonçalves, Cristina Jaques da Cunha, Cristina Moreira Pisicchio, Daniel Cardoso de Carvalho, Daniel Galiano, Daniel Gomez‐Uchida, Daniel Oliveira Santana, Daniel Salas Johnson, Danielle Katharine Petsch, Danielly Torres Hashiguti de Freitas, Dayani Bailly, Débora Ferreira Machado, Débora Reis de Carvalho, Dhyego Hamilton Topan, Diego Cañas‐Rojas, Diego da Silva, Diogo Freitas‐Souza, Dilermando Pereira Lima‐Júnior, Diovani Piscor, Djalma Pereira Moraes, Douglas Viana, Dyego Leonardo Ferraz Caetano, Éder André Gubiani, Edson K. Okada, Eduardo Cazuni do Amaral, Eduardo Meneguzzi Brambilla, Eduardo Ribeiro Cunha, Elaine Antoniassi Luiz Kashiwaqui, Elise Amador Rocha, Elisete Ana Barp, Elmary da Costa Fraga, Elvira D'Bastiani, Eugenia Zandonà, Eurizângela Pereira Dary, Evanilde Benedito, Everardo Barba‐Macías, Evelyn Vanessa Calvache Uvidia, Fabiana Luques Fonseca, Fabiane Silva Ferreira, Fábio Lima, Fábio Maffei, Fábio Porto‐Foresti, Fabrício Barreto Teresa, Fabrício de Andrade Frehse, Fagner Júnior M. Oliveira, Felipe Pessoa da Silva, Felipe Pontieri de Lima, Fernanda Dotti do Prado, Fernando Camargo Jerep, Fernando Emmanuel Gonçalves Vieira, Fernando Gertum Becker, Fernando Rogério de Carvalho, Flávio Kulaif Ubaid, Francisco Keilo Teixeira, Francisco Provenzano Rizzi, Francisco Severo‐Neto, Francisco Villamarín, Franco Teixeira de Mello, Friedrich Wolfgang Keppeler, Gabriel de Avila Batista, Gabriel de Menezes Yazbeck, Giancarlo Tesitore, Gilberto Nepomuceno Salvador, Gita Juan Soteroruda Brito, Giulianna Rondineli Carmassi, Gregório Kurchevski, Guillermo Goyenola, Hasley Rodrigo Pereira, Helen Jamille Fernandes Silva Alvez, Helena Alves do Prado, Henrique Ledo Lopes Pinho, Híngara Leão Sousa, Hugo Bornatowski, Hugo de Oliveira Barbosa, Ibon Tobes, Igor de Paiva Affonso, Igor Raposo Queiroz, Irma Vila, Iván Vinicio Jácome Negrete, Ivo Gavião Prado, Jean Ricardo Simões Vitule, Jessé Figueiredo‐Filho, Jessica Antúnez Gonzalez, Jéssica Caroline de Faria Falcão, Jéssica Vieira Teixeira, Jimmy Pincheira‐Ulbrich, Jislaine Cristina da Silva, João Antonio de Araujo Filho, João Fernando Marques da Silva, João Gabriel Genova, João Gabriel Ribeiro Giovanelli, João Vitor Perin Andriola, Jonatas Alves, Jonathan Valdiviezo‐Rivera, Jorge Brito, Jorge Iván Sánchez Botero, Jorge Liotta, Jorge Luis Ramirez, Jorge Reppold Marinho, José Luís Olivan Birindelli, Jose Luis Costa Novaes, Joseph E. Hawes, Josiane Ribolli, Juan Francisco Rivadeneira, Juan Jacobo Schmitter‐Soto, Juliana Camara Assis, Juliana Paulo da Silva, Juliana Silveira dos Santos, Juliana Wingert, Juliana Wojciechowski, Juliano André Bogoni, Juliano Ferrer, Julio César Jut Solórzano, Júlio César Sá‐Oliveira, Jussara Oliveira Vaini, Kamila Contreras Palma, Karine Orlandi Bonato, Karla Dayane de Lima Pereira, Kassiano dos Santos Sousa, Kevin Giancarlo Borja‐Acosta, Laís Carneiro, Larissa Faria, Leonardo Brito de Oliveira, Leonardo Cardoso Resende, Leonardo Ferreira da Silva Ingenito, Leonardo Oliveira Silva, Leydiane Nunes Rodrigues, Lida Guarderas‐Flores, Lidiane Martins, Lorena Tonini, Lorrana Thaís Máximo Durville Braga, Louise Cristina Gomes, Lucas de Fries, Lucas Gonçalves da Silva, Lucas Ribeiro Jarduli, Luciano Benedito Lima, Luciano Gomes Fischer, Luciano Lazzarini Wolff, Luciano Neves dos Santos, Luis Artur Valões Bezerra, Luisa Maria Sarmento Soares, Luisa Resende Manna, Luiz Fernando Duboc, Luiz Guilherme dos Santos Ribas, Luiz Roberto Malabarba, Marcelo Fulgêncio Guedes Brito, Marcelo Rennó Braga, Marcelo Silva de Almeida, Maria Cecília Sily, Maria Claudene Barros, Maria Histelle Sousa do Nascimento, Maria Laura de Souza Delapieve, Maria Teresa Fernandez Piedade, Marina Tagliaferro, Mário Cesar Cardoso de Pinna, Mario H. Yánez‐Muñoz, Mário Luís Orsi, Marlon Ferraz da Rosa, Marlos Bastiani, Marta Severino Stefani, Martha Buenaño‐Carriel, Martha Elena Valdez Moreno, Mateus Moreira de Carvalho, Mateus Tavares Kütter, Matheus Oliveira Freitas, Mauricio Cañas‐Merino, Mauricio Cetra, Mauricio Herrera‐Madrid, Mauricio Mello Petrucio, Mauro Galetti, Miguel Ángel Salcedo, Miguel Pascual, Milton Cezar Ribeiro, Milza Celi Fedatto Abelha, Mônica Andrade da Silva, Mônica Pacheco de Araujo, Murilo Sversut Dias, Naiara Guimaraes Sales, Naraiana Loureiro Benone, Natane Sartor, Nelson Ferreira Fontoura, Nicholas Silvestre de Souza Trigueiro, Nicolás Álvarez‐Pliego, Oscar Akio Shibatta, Pablo A. Tedesco, Pablo Cesar Lehmann Albornoz, Pablo Henrique Fernandes Santos, Pâmela Virgolino Freitas, Patricia Calegari Fagundes, Patrícia Domingues de Freitas, Patricio Mena‐Valenzuela, Paul Tufiño, Paula Araujo Catelani, Paula Peixoto, Paulo Ilha, Pedro De Podestà Uchôa de Aquino, Pedro Gerhard, Pedro Hollanda Carvalho, Pedro Jiménez‐Prado, Pedro Manoel Galetti, Pedro Paulino Borges, Pedro Peixoto Nitschke, Pedro Sartori Manoel, Phamela Bernardes Perônico, Philip Teles Soares, Pitágoras Augusto Piana, Priscila de Oliveira Cunha, Priscila Plesley, Rafael Couto Rosa de Souza, Rafael Rogério Rosa, Rana W. El‐Sabaawi, Raoni Rosa Rodrigues, Raphael Covain, Raquel Coelho Loures, Raul Rennó Braga, Reginaldo Ré, Rémy Bigorne, Renata Cassemiro Biagioni, Renato Azevedo Matias Silvano, Renato Bolson Dala‐Corte, Renato Tavares Martins, Ricardo Rosa, Ricardo Sartorello, Rodrigo de Almeida Nobre, Ronald D. Bassar, Ronaldo César Gurgel‐Lourenço, Ronaldo Fernando Martins Pinheiro, Ronaldo Leal Carneiro, Rosa Florido, Rosana Mazzoni, Rosane Silva‐Santos, Rosiane de Paula Santos, Rosilene Luciana Delariva, Sandra Maria Hartz, Sebastien Brosse, Sérgio Luiz Althoff, Shaka Nóbrega Marinho Furtado, Sidnei Eduardo Lima‐Junior, Silvia Yasmin Lustosa Costa, Solange Arrolho, Sonya K. Auer, Sybelle Bellay, Taís de Fátima Ramos Guimarães, Talitha Mayumi Francisco, Tatiane Mantovano, Tatyana Gomes, Telton Pedro Anselmo Ramos, Thaís de Assis Volpi, Thais Moura Emiliano, Thiago Augusto Pedroso Barbosa, Thiago José Balbi, Thiago Nascimento da Silva Campos, Thiago Teixeira Silva, Thiago Vinícius Trento Occhi, Thiely Oliveira Garcia, Tiago Magalhães da Silva Freitas, Tiago Octavio Begot, Tony Leandro Rezende da Silveira, Ueslei Lopes, Uwe Horst Schulz, Valéria Fagundes, Valéria Flávia Batista da Silva, Valter M. Azevedo‐Santos, Vanessa Ribeiro, Vanessa Graciele Tibúrcio, Vera Lúcia Lescano de Almeida, Victoria J. Isaac‐Nahum, Vinicius Abilhoa, Vinicius Farias Campos, Vinicius Tavares Kütter, Vivian de Mello Cionek, Viviane Prodocimo, Wagner Vicentin, Waldney Pereira Martins, Walna Micaelle de Moraes Pires, Weferson Júnio da Graça, Welber Senteio Smith, Wesley Dáttilo, Windsor Efren Aguirre Maldonado, Yuri Gomes Ponce de Carvalho Rocha, Yzel Rondon Súarez, and Zilda Margarete Seixas de Lucena

Subjects
biodiversity hotspot, ichthyology, Landschapsarchitectuur en Ruimtelijke Planning, Landscape Architecture and Spatial Planning, conservation, species distribution, Neotropical region, occurrence, Ecology, Evolution, Behavior and Systematics, data paper
Abstract

The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for freshwater fishes. Our NEOTROPICAL FRESHWATER FISHES data set is the first to produce a large-scale Neotropical freshwater fish inventory, covering the entire Neotropical region from Mexico and the Caribbean in the north to the southern limits in Argentina, Paraguay, Chile, and Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, for the 4225 species, represented by occurrence and abundance data. The number of species for the most numerous orders are as follows: Characiformes (1289), Siluriformes (1384), Cichliformes (354), Cyprinodontiformes (245), and Gymnotiformes (135). The most recorded species was the characid Astyanax fasciatus (4696 records). We registered 116,802 distribution records for native species, compared to 1802 distribution records for nonnative species. The main aim of the NEOTROPICAL FRESHWATER FISHES data set was to make these occurrence and abundance data accessible for international researchers to develop ecological and macroecological studies, from local to regional scales, with focal fish species, families, or orders. We anticipate that the NEOTROPICAL FRESHWATER FISHES data set will be valuable for studies on a wide range of ecological processes, such as trophic cascades, fishery pressure, the effects of habitat loss and fragmentation, and the impacts of species invasion and climate change. There are no copyright restrictions on the data, and please cite this data paper when using the data in publications.

Published
2023

4. Ecological separation by ecomorphology and swimming performance between two congeneric fish species

Author

Rafael Couto Rosa de Souza and Paulo Santos Pompeu

Subjects
0106 biological sciences, environmental pressure, biology, Ecology, Water flow, Ecomorphology, 010604 marine biology & hydrobiology, Peduncle (anatomy), Fish fin, habitat use, biology.organism_classification, 010603 evolutionary biology, 01 natural sciences, Habitat, Sympatric speciation, lcsh:Zoology, morphology, Freshwater fish, Characidium, Animal Science and Zoology, lcsh:QL1-991, human activities, intraspecific differences
Abstract

The high diversity of freshwater fish species reflects a great morphological plasticity. Understanding the relationship between swimming capacity, morphology and habitat use may be important to predict the chances of finding a species at an anthropized environment. The swimming capacity and morphological aspects of two sympatric species of Characidium, and for which spatial segregation in different hydraulic habitats is known, were compared in this study. Twenty-one individuals of Characidium fasciatum Reinhardt, 1867 and 23 individuals of Characidium cf. zebra Eigenmann, 1909 were captured and used for the evaluation of the swimming capacity and ecomorphological attributes. The swimming capacity of each species was obtained by measuring critical and relative velocities. A total of 12 ecomorphological attributes correlated with habitat use and swimming characteristics were also compared. The Mann-Whitney mean test showed that the swimming capacity of C. fasciatum was greater than that of C. cf. zebra, and the standard length of the individuals explained 12.42% of the variation in their capacity to withstand water flow. Both species were morphologically distinct in the relative length of the caudal peduncle, ventral flattening index and the relative area of the pectoral fin. The relative area of the pectoral fin alone accounted for 16.71% of the differences in the ability to resist the water flow and which were not explained by body length. Our results showed that two species differed in the ecomorphological space and in their swimming capacity, supporting the hypothesis that the greater the hydrodynamism, the better a fish is able to withstand the water flow, and that this capacity is correlated with the morphological characteristics linked to the swimming activity of the fish.

Published
2020

6. FISH DIVERSITY DOWNSTREAM OF HYDROPOWER PLANTS OF THE UPPER PARANÁ RIVER BASIN, BRAZIL

Author

Ivo Gavião Prado, Mateus Moreira Carvalho, Ana Carolina Lacerda Rêgo, Thiago Teixera Silva, Alexandre Lima Godinho, Raoni Rosa Rodrigues, Rafael Couto Rosa de Souza, and Átila Rodrigues Araújo

Subjects
Fishery, Downstream (manufacturing), business.industry, Parana river, Environmental science, %22">Fish , Structural basin, business, Hydropower
Published
2016

8. Influence of environmental variables on stream fish fauna at multiple spatial scales

Author

Marcos Callisto, Paulo Santos Pompeu, Rafael Couto Rosa de Souza, Nara Tadini Junqueira, Diego Rodrigues Macedo, and Robert M. Hughes

Subjects
0106 biological sciences, Partial CCA, Fauna, Drainage basin, STREAMS, Aquatic Science, Biology, Fish assemblages, 010603 evolutionary biology, 01 natural sciences, Physical habitat, Abundance (ecology), lcsh:Zoology, Ecosystem, lcsh:QL1-991, Ecology, Evolution, Behavior and Systematics, Disturbed sites, geography, geography.geographical_feature_category, Land use, Ecology, 010604 marine biology & hydrobiology, biology.organism_classification, Habitat, Freshwater fish, Animal Science and Zoology
Abstract

Effects of environmental variables at different spatial scales on freshwater fish assemblages are relatively unexplored in Neotropical ecosystems. However, those influences are important for developing management strategies to conserve fish diversity and water resources. We evaluated the influences of site- (in-stream) and catchment-scale (land use and cover) environmental variables on the abundance and occurrence of fish species in streams of the Upper Araguari River basin through use of variance partitioning with partial CCA. We sampled 38 1st to 3rd order stream sites in September 2009. We quantified site variables to calculate 11 physical habitat metrics and mapped catchment land use/cover. Site and catchment variables explained > 50% of the total variation in fish species. Site variables (fish abundance: 25.31%; occurrence: 24.51%) explained slightly more variation in fish species than catchment land use/cover (abundance: 22.69%; occurrence: 18.90%), indicating that factors at both scales are important. Because anthropogenic pressures at site and catchment scales both affect stream fish in the Upper Araguari River basin, both must be considered jointly to apply conservation strategies in an efficient manner. RESUMO Os efeitos das variáveis ambientais em diferentes escalas espaciais sobre as assembleias de peixes de água doce ainda é um tema pouco explorado na região Neotropical. Entretanto é um assunto de extrema relevância, pois gera subsídios para definições de estratégias de manejo e conservação de ictiofauna e dos recursos hídricos. Nós avaliamos a influência de variáveis ambientais em escalas local (dentro do rio) e da paisagem (uso e cobertura do solo) na abundância e ocorrência das espécies de peixes de riachos da bacia do alto rio Araguari através da partição da variância usando CCA parcial. Um total de 38 riachos de até 3ª ordem foi amostrado em setembro de 2009. Nós quantificamos variáveis locais para calcular 11 métricas de hábitats físicos e mapeamos o uso e cobertura do solo. O conjunto de dados (variáveis locais e da paisagem) explicou mais de 50% da variação total nas espécies de peixes. Variáveis em escala local (abundância: 25,31%; ocorrência: 24,51%) explicaram levemente uma maior variação nas assembleias de peixes do que o uso e cobertura do solo (abundância: 22,69%; ocorrência: 18,90%), indicando que os fatores em ambas as escalas de estudo são importantes. Uma vez que a influência antrópica em diferentes escalas afeta as espécies de peixes em riachos da bacia do alto rio Araguari, ambas devem ser consideradas juntamente para a adoção de estratégias de conservação de uma forma racional.

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