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Journal articles on the topic 'Neotropical ichthyofauna'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Agostinho, Angelo Antonio, Luiz Carlos Gomes, Domingo Rodriguez Fernandez, and Harumi Irene Suzuki. "Efficiency of fish ladders for neotropical ichthyofauna." River Research and Applications 18, no. 3 (2002): 299–306. http://dx.doi.org/10.1002/rra.674.

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2

Souza, Carla Patrícia de, Carlos Alberto de Sousa Rodrigues-Filho, Francisco Antônio Rodrigues Barbosa, and Rafael Pereira Leitão. "Drastic reduction of the functional diversity of native ichthyofauna in a Neotropical lake following invasion by piscivorous fishes." Neotropical Ichthyology 19, no. 3 (2021): 1–18. https://doi.org/10.1590/1982-0224-2021-0033.

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Souza, Carla Patrícia de, Rodrigues-Filho, Carlos Alberto de Sousa, Barbosa, Francisco Antônio Rodrigues, Leitão, Rafael Pereira (2021): Drastic reduction of the functional diversity of native ichthyofauna in a Neotropical lake following invasion by piscivorous fishes. Neotropical Ichthyology (e210033) 19 (3): 1-18, DOI: 10.1590/1982-0224-2021-0033, URL: http://dx.doi.org/10.1590/1982-0224-2021-0033

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3

Thomaz, Andréa T., and L. Lacey Knowles. "Flowing into the unknown: inferred paleodrainages for studying the ichthyofauna of Brazilian coastal rivers." Neotropical Ichthyology 16, no. 3 (2018): 1–13. https://doi.org/10.1590/1982-0224-20180019.

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Thomaz, Andréa T., Knowles, L. Lacey (2018): Flowing into the unknown: inferred paleodrainages for studying the ichthyofauna of Brazilian coastal rivers. Neotropical Ichthyology 16 (3): 1-13, DOI: 10.1590/1982-0224-20180019

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4

Duarte, Alice Carters, Marina Gomes Leonardo, Leandro Melo de Sousa, and Alberto Akama. "COMPARATIVE ANALYSIS OF ICHTHYOFAUNAL RICHNESS IN A NEOTROPICAL REGION: DIVING, VISUAL CENSUS AND TRADITIONAL FISH COLLECTING TECHNIQUES." Oecologia Australis 29, no. 01 (2025): 18–33. https://doi.org/10.4257/oeco.2025.2901.02.

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The Neotropical region harbors unique biodiversity and a vast wealth of fish species. Inventories of river basins are essential for assessing environmental impacts. In this study, we analyzed the use of diving and visual census data as complementary tools for inventorying rheophilic ichthyofauna in the Tocantins River. Compared with traditional methods, diving and visual censuses register exclusive and shared species, increasing the efficiency of detecting fish diversity in rapids. We observed that Characiformes were predominantly sampled using traditional methods whereas diving and visual cen

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5

Orlandi-Neto, Aymar, Rafael Vieira Amorim, Rosilene Luciana Delariva, Antonio Fernando Monteiro Camargo, Rosicleire Veríssimo-Silveira, and Igor Paiva Ramos. "Structure and composition of ichthyofauna associated with cage fish farming and compared to a control area after severe drought in a Neotropical reservoir." Neotropical Ichthyology 20, no. 3 (2022): 1–17. https://doi.org/10.1590/1982-0224-2021-0141.

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Orlandi-Neto, Aymar, Amorim, Rafael Vieira, Delariva, Rosilene Luciana, Camargo, Antonio Fernando Monteiro, Veríssimo-Silveira, Rosicleire, Ramos, Igor Paiva (2022): Structure and composition of ichthyofauna associated with cage fish farming and compared to a control area after severe drought in a Neotropical reservoir. Neotropical Ichthyology (e210141) 20 (3): 1-17, DOI: 10.1590/1982-0224-2021-0141, URL: http://dx.doi.org/10.1590/1982-0224-2021-0141

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6

de, Brito Victor, and Paulo Andreas Buckup. "The fish fauna of the upper Piraí drainage, a transposed mountain river system in southeastern, Brazil." Check List 15, no. (1) (2019): 235–47. https://doi.org/10.15560/15.1.235.

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An annotated checklist of the ichthyofauna from the upper Piraí river drainage is provided. The Piraí river was a major right-bank tributary of the Paraíba do Sul river, but it has been artificially diverted to the coastal Guandu river system in southeastern Brazil to generate electric power and water for the metropolitan area of Rio de Janeiro. Based on our field sampling of 23 sites, 32 species belonging to 24 genera and 12 families were collected in 6 headwater tributaries of the Piraí river between 2009 and 2016. <em>Phalloceros harpagos</em> (Lucinda, 2008), <e

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7

Brejão, Gabriel Lourenço, Pedro Gerhard, and Jansen Zuanon. "Functional trophic composition of the ichthyofauna of forest streams in eastern Brazilian Amazon." Neotropical Ichthyology 11, no. 2 (2013): 361–73. https://doi.org/10.1590/S1679-62252013005000006.

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Brejão, Gabriel Lourenço, Gerhard, Pedro, Zuanon, Jansen (2013): Functional trophic composition of the ichthyofauna of forest streams in eastern Brazilian Amazon. Neotropical Ichthyology 11 (2): 361-373, DOI: 10.1590/S1679-62252013005000006, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200361&lng=en&tlng=en

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8

Teixeira-Leite, Clara V., and Marcelo Vianna. "Building a baseline: a survey of the composition and distribution of the ichthyofauna of Guanabara Bay, a deeply impacted estuary." Neotropical Ichthyology 21, no. 2 (2023): 1–34. https://doi.org/10.1590/1982-0224-2022-0068.

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Teixeira-Leite, Clara V., Vianna, Marcelo (2023): Building a baseline: a survey of the composition and distribution of the ichthyofauna of Guanabara Bay, a deeply impacted estuary. Neotropical Ichthyology (e220068) 21 (2): 1-34, DOI: 10.1590/1982-0224-2022-0068, URL: http://dx.doi.org/10.1590/1982-0224-2022-0068

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9

Lima, Felipe P. de, André B. Nobile, Diogo Freitas-Souza, Edmir D. Carvalho, and Ana P. Vidotto-Magnoni. "Can dams affect the trophic structure of ichthyofauna? A long-term effects in the Neotropical region." Iheringia, Série Zoologia 108 (September 17, 2018): 1–10. https://doi.org/10.1590/1678-4766e2018030.

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Lima, Felipe P. de, Nobile, André B., Freitas-Souza, Diogo, Carvalho, Edmir D., Vidotto-Magnoni, Ana P. (2018): Can dams affect the trophic structure of ichthyofauna? A long-term effects in the Neotropical region. Iheringia, Série Zoologia (e2018030) 108: 1-10, DOI: 10.1590/1678-4766e2018030, URL: http://dx.doi.org/10.1590/1678-4766e2018030

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10

Andreoli Bize, Julieta, and Luis Fernández. "Invasion alert: new record of the exotic Gambusia holbrooki Girard, 1859 in the Puna Austral region, Northwestern of Argentina." Neotropical Biology and Conservation 14, no. 2 (2019): 291–95. http://dx.doi.org/10.3897/neotropical.14.e36535.

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We report the first record of Gambusia holbrooki Girard, 1859 at elevations above 1,615 m in the Puna Austral, Provincia Catamarca, Argentina. This fish was introduced by intentional release. The Puna is characterized by an endorheic system, where the exotic species would cause a negative impact on the aquatic fauna by predation of eggs and larvae of native fish. Unfortunately, Argentinian conservation policies are directed to protect exotic fish before endemic ichthyofauna.

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11

Bulla, Cíntia Karen, Luiz Carlos Gomes, Leandro Esteban Miranda, and Angelo Antonio Agostinho. "The ichthyofauna of drifting macrophyte mats in the Ivinhema River, upper Paraná River basin, Brazil." Neotropical Ichthyology 9, no. 2 (2011): 403–9. https://doi.org/10.1590/S1679-62252011005000021.

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Bulla, Cíntia Karen, Gomes, Luiz Carlos, Miranda, Leandro Esteban, Agostinho, Angelo Antonio (2011): The ichthyofauna of drifting macrophyte mats in the Ivinhema River, upper Paraná River basin, Brazil. Neotropical Ichthyology 9 (2): 403-409, DOI: 10.1590/S1679-62252011005000021, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200018&lng=en&tlng=en

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12

Smith, Welber Senteio, Flavia Conceição de Paiva, Luis Gustavo Nogueira de Carvalho, et al. "Extreme events and ichthyofauna: case report of a neotropical river." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 19 (October 29, 2024): 1–18. http://dx.doi.org/10.4136/ambi-agua.3011.

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The increasing frequency and intensity of extreme weather events and their impact on aquatic ecosystems and fish species is concerning. This manuscript reports and analyzes two events, a drought in 2019 and a flood in 2024, providing valuable insights into the consequences of these events. The rescue of 269 individuals of 19 fish species during the 2019 drought highlights the significant impact of the extreme conditions on the ichthyofauna. Rising temperatures, isolation, and habitat fragmentation must have posed severe challenges for the fish species during this period. On the other hand, the

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13

Luz-Agostinho, Karla D. G., Luis M. Bini, Rosemara Fugi, Angelo A. Agostinho, and Jr Horácio F. Júlio. "Food spectrum and trophic structure of the ichthyofauna of Corumbá reservoir, Paraná river Basin, Brazil." Neotropical Ichthyology 4, no. 1 (2006): 61–68. https://doi.org/10.1590/S1679-62252006000100005.

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Luz-Agostinho, Karla D. G., Bini, Luis M., Fugi, Rosemara, Agostinho, Angelo A., Júlio Jr, Horácio F. (2006): Food spectrum and trophic structure of the ichthyofauna of Corumbá reservoir, Paraná river Basin, Brazil. Neotropical Ichthyology 4 (1): 61-68, DOI: 10.1590/S1679-62252006000100005, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000100005&lng=en&tlng=en

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14

Volcan, Matheus, Luis Lanés, Ândrio Gonçalves, Alinca Fonseca, and Maximiano Cirne. "The fish fauna of the Corrientes stream basin, Patos lagoon system, state of Rio Grande do Sul, southern Brazil." Check List 8, no. (1) (2012): 77–82. https://doi.org/10.15560/8.1.077.

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The fish sampled in this study were captured in seasonal collections samplings, conducted between May 2006 and February 2007 in 15 stretches of the Corrientes stream basin, Patos lagoon system, Rio Grande do Sul state, Brazil. A total of 8088 specimens were collected, belonging to nine orders, 24 families and 68 species. In general, the ichthyofauna in this basin has the same pattern recognized for Neotropical rivers with predominance of Characiformes and Siluriformes orders and a high representative of the Characidae and Loricariidae families.

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15

Gonçalves, Cristina da Silva, and Francisco Manoel de Souza Braga. "Changes in ichthyofauna composition along a gradient from clearwaters to blackwaters in coastal streams of Atlantic forest (southeastern Brazil) in relation to environmental variables." Neotropical Ichthyology 10, no. 3 (2012): 675–84. https://doi.org/10.1590/S1679-62252012000300022.

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Gonçalves, Cristina da Silva, Braga, Francisco Manoel de Souza (2012): Changes in ichthyofauna composition along a gradient from clearwaters to blackwaters in coastal streams of Atlantic forest (southeastern Brazil) in relation to environmental variables. Neotropical Ichthyology 10 (3): 675-684, DOI: 10.1590/S1679-62252012000300022, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300022&lng=en&tlng=en

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16

Ferraz, João D., Armando C. R. Casimiro, Diego A. Z. Garcia, et al. "Taxonomic loss and functional reduction over time in the ichthyofauna of the Taquaruçu Reservoir, lower Paranapanema River, Southern Brazil." Neotropical Ichthyology 19, no. 3 (2021): 1–20. https://doi.org/10.1590/1982-0224-2020-0143.

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Ferraz, João D., Casimiro, Armando C. R., Garcia, Diego A. Z., Pereira, Alan D., Jarduli, Lucas R., Almeida, Fernanda S. de, Orsi, Mário L. (2021): Taxonomic loss and functional reduction over time in the ichthyofauna of the Taquaruçu Reservoir, lower Paranapanema River, Southern Brazil. Neotropical Ichthyology (e200143) 19 (3): 1-20, DOI: 10.1590/1982-0224-2020-0143, URL: http://dx.doi.org/10.1590/1982-0224-2020-0143

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17

Albert, James S., Victor A. Tagliacollo, and Fernando Dagosta. "Diversification of Neotropical Freshwater Fishes." Annual Review of Ecology, Evolution, and Systematics 51, no. 1 (2020): 27–53. http://dx.doi.org/10.1146/annurev-ecolsys-011620-031032.

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Neotropical freshwater fishes (NFFs) constitute the most diverse continental vertebrate fauna on Earth, with more than 6,200 named species compressed into an aquatic footprint <0.5% of the total regional land-surface area and representing the greatest phenotypic disparity and functional diversity of any continental ichthyofauna. Data from the fossil record and time-calibrated molecular phylogenies indicate that most higher taxa (e.g., genera, families) diversified relatively continuously through the Cenozoic, across broad geographic ranges of the South American platform. Biodiversity data f

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18

Silva, Augusto Luís Bentinho, Giancarlo Arraes Galvão, Aline Alves Ferreira da Rocha, et al. "Ichthyofauna on the move: fish colonization and spread through the São Francisco Interbasin Water Transfer Project." Neotropical Ichthyology 21, no. 1 (2023): 1–31. https://doi.org/10.1590/1982-0224-2022-0016.

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Silva, Augusto Luís Bentinho, Galvão, Giancarlo Arraes, Rocha, Aline Alves Ferreira da, Gutierre, Silvia Maria Millan, Santos, Geiza Rodrigues dos, Costa, Bruno Dourado Fernandes da, Pereira, Luiz Cezar Machado, Nicola, Patricia Avello (2023): Ichthyofauna on the move: fish colonization and spread through the São Francisco Interbasin Water Transfer Project. Neotropical Ichthyology (e220016) 21 (1): 1-31, DOI: 10.1590/1982-0224-2022-0016, URL: http://dx.doi.org/10.1590/1982-0224-2022-0016

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19

Silva, Márcio, Brisa Costa, Telton Ramos, Paulo Auricchio, and Sergio Lima. "Ichthyofauna of the Gurgueia River, Parnaíba River basin, northeastern Brazil." Check List 11, no. (5) (2015): 1–8. https://doi.org/10.15560/11.5.1765.

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The Gurgueia River in southern Piauí state, Brazil, is the largest affluent on the right margin of the Parnaíba River basin. This study aimed to inventory the Gurgueia River ichthyofauna, and contribute to the knowledge of fish diversity in Northeastern Brazil. We sampled 71 locations throughout the Gurgueia sub-basin between 2006 and 2014, which resulted in 90 fish species representing 67 genera, 26 families and six orders, including two non-native species. Six species are newly recorded for the Parnaíba basin (<em>Hasemania nana, Hemigrammus brevis, H. guyanensis, H. ora, Corydoras </em>sp.

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20

Matavelli, Rodrigo, Aldenise Campos, João do Vale, Nivaldo Piorski, and Paulo Pompeu. "Ichthyofauna sampled with tadpoles in northeastern Maranhão state, Brazil." Check List 11, no. (1) (2015): 1–6. https://doi.org/10.15560/11.1.1550.

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The Neotropic region has high fish diversity associated with freshwater habitats. However, for Maranhão state, most publications on the ichthyofauna concentrate on coastal or estuarine ecosystems. In this study, species of fish were sampled in lentic and lotic habitats in Cerrado areas (Cerradão phytophysiognomy) and in restinga areas (Atlantic Forest phytophysiognomy) in northeastern Maranhão state between January and July 2010. Thirteen species from 10 families and 6 orders were captured. Species richness was highest for the orders Characiformes and Gymnotiformes. Our results are the first r

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21

Volcan, Matheus Vieira, Luis Esteban Krause Lanés, Ândrio Cardozo Gonçalves, Alinca Peres da Fonseca, and Maximiano Pinheiro Cirne. "The fish fauna of the Corrientes stream basin, Patos lagoon system, state of Rio Grande do Sul, southern Brazil." Check List 8, no. 1 (2012): 077. http://dx.doi.org/10.15560/8.1.077.

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The fish sampled in this study were captured in seasonal collections samplings, conducted between May 2006 and February 2007 in 15 stretches of the Corrientes stream basin, Patos lagoon system, Rio Grande do Sul state, Brazil. A total of 8088 specimens were collected, belonging to nine orders, 24 families and 68 species. In general, the ichthyofauna in this basin has the same pattern recognized for Neotropical rivers with predominance of Characiformes and Siluriformes orders and a high representative of the Characidae and Loricariidae families.

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22

Novaes, JLC, SIL Moreira, CEC Freire, MMO Sousa, and RS Costa. "Fish assemblage in a semi-arid Neotropical reservoir: composition, structure and patterns of diversity and abundance." Brazilian Journal of Biology 74, no. 2 (2014): 290–301. http://dx.doi.org/10.1590/1519-6984.14712.

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The aim of this study was to analyse the composition, structure and spatial and temporal patterns of diversity and abundance of the ichthyofauna of the Santa Cruz Reservoir in semi-arid Brazil. Data were collected quarterly at eight sampling locations on the reservoir between February 2010 and November 2011 using gillnets from 12- to 70-mm mesh that were left in the water for 12h00min during the night. We evaluated the composition, structure and assemblage descriptors (Shannon-Wiener diversity index and equitability, respectively) and catch per unit effort by the number (CPUEn) and biomass (CP

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23

Bartolette, Renata, Carolina Santos Vieira, Amille Ferreira Lima Santos, et al. "The ichthyofauna in the influence area of the Lajeado reservoir, Tocantins state, Brazil." Check List 13, no. 3 (2017): 2156. http://dx.doi.org/10.15560/13.3.2156.

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Five rivers and 13 streams in the influence area of the Lajeado reservoir (upper-middle Tocantins River) were sampled in 5 expeditions. A total of 194 fish species were recorded and with the Characiformes and Siluriformes predominant, following the observed pattern for the Neotropical region. As expected, the families with greater richness were Characidae, Loricariidae and Cichlidae. Three species listed as Endangered were collected: Mylesinus paucisquamatus Jégu & Santos, 1988, Melanorivulus litteratus (Costa, 2010) and Paratrygon aiereba (Müller & Henle, 1841).

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Pimentel, Caio R., Luiz A. Rocha, Bart Shepherd, et al. "Mesophotic ecosystems at Fernando de Noronha Archipelago, Brazil (South-western Atlantic), reveal unique ichthyofauna and need for conservation." Neotropical Ichthyology 18, no. 4 (2020): 1–17. https://doi.org/10.1590/1982-0224-2020-0050.

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Pimentel, Caio R., Rocha, Luiz A., Shepherd, Bart, Phelps, Tyler A. Y., Joyeux, Jean-Christophe, Martins, Agnaldo S., Stein, Carlos Eduardo, Teixeira, João B., Gasparini, João Luiz, Reis-Filho, José Amorim, Garla, Ricardo C., Francini-Filho, Ronaldo B., Delfino, Stephanie D. T., Mello, Thayná J., Giarrizzo, Tommaso, Pinheiro, Hudson T. (2020): Mesophotic ecosystems at Fernando de Noronha Archipelago, Brazil (South-western Atlantic), reveal unique ichthyofauna and need for conservation. Neotropical Ichthyology (e200050) 18 (4): 1-17, DOI: 10.1590/1982-0224-2020-0050, URL: http://dx.doi.org/10.1

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25

Carvalho Pereira, Miziane de. "Ichthyofauna of the Middle Tocantins River, Imperatriz, Maranhão, Brazil." International Journal of Agriculture and Biology 33, no. 02 (2024): 330212. https://doi.org/10.17957/ijab/15.2272.

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Fish represent more than half of the vertebrate species in the world. In the Tocantins River, the second largest river by water flow in Brazil, there are a minimum of 520 species of fish. This work aims to list the diversity of the ichthyofauna present in the Cacau River, a tributary of the Tocantins River, which flows into the municipality of Imperatriz, Maranhão. The collections took place over a period of one year, every first week of the month, both in the rainy season (November to April) and in the dry season (May to October). The specimens were captured using cast nets and gillnets with

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Bartolette, Renata, Carolina Vieira, amille Santos, et al. "The ichthyofauna in the influence area of the Lajeado reservoir, Tocantins state, Brazil." Check List 13, no. (3) (2017): 1–14. https://doi.org/10.15560/13.3.2156.

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Five rivers and 13 streams in the influence area of the Lajeado reservoir (upper-middle Tocantins River) were sampled in 5 expeditions. A total of 194 fish species were recorded and with the Characiformes and Siluriformes predominant, following the observed pattern for the Neotropical region. As expected, the families with greater richness were Characidae, Loricariidae and Cichlidae. Three species listed as Endangered were collected: <em>Mylesinus paucisquamatus </em>Jégu & Santos, 1988, <em>Melanorivulus litteratus</em> (Costa, 2010) and <em>Paratrygon aiereba </em>(Müller & Henle, 18

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Castro, Ricardo Macedo Corrêa e. "EVOLUÇÃO DA ICTIOFAUNA DE RIACHOS SUL-AMERICANOS (CASTRO, 1999) REVISITADO APÓS MAIS DE DUAS DÉCADAS." Oecologia Australis 25, no. 02 (2021): 231–45. http://dx.doi.org/10.4257/oeco.2021.2502.02.

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A little more than 20 years after the first publication of Castro (1999), the knowledge of the South American freshwater ichthyofauna, especially that of Brazil, has increased dramatically. This increase occurred both in terms of knowledge of its taxonomic diversity - in 1999, based on various sources in the scientific literature, a total of 2,800 species of South American freshwater fish was estimated, and a total of near 3,500 species it is currently known from Brazil alone - as to the knowledge of its evolution and also ecology. Consequently, all the hypotheses originally proposed in that p

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Sanches, B. O., R. M. Hughes, D. R. Macedo, M. Callisto, and G. B. Santos. "Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir." Brazilian Journal of Biology 76, no. 1 (2016): 185–93. http://dx.doi.org/10.1590/1519-6984.16614.

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Abstract We assessed the fish assemblage structure and composition of Nova Ponte Reservoir (Araguari River, Upper Paraná Basin, Brazil). We observed significant differences in abundance (p = 0.0003), richness (p = 0.0005) and diversity (p = 0.02) between lacustrine and riverine zones of the reservoir. Nine species were significantly more abundant in the riverine region: Astyanax altiparanae, Astyanax gr. fasciatus, Galeocharax knerii, Hoplias intermedius, Hypostomus sp., Leporinus friderici, Leporinus obtusidens, Pimelodus maculatus and Schizodon nasutus. The results indicated a longitudinal g

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29

Malabarba, Maria C., Luiz R. Malabarba, and Hernán López-Fernández. "On the Eocene cichlids from the Lumbrera Formation: additions and implications for the Neotropical ichthyofauna." Journal of Vertebrate Paleontology 34, no. 1 (2014): 49–58. http://dx.doi.org/10.1080/02724634.2013.830021.

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30

Marques, Cindy, Fernando Quintela, Fabiano Corrêa, and Daniel Loebmann. "The ichthyofauna of limnic systems in Quaternary deposits of extreme southern Brazil." ZooKeys 638 (December 7, 2016): 85–104. https://doi.org/10.3897/zookeys.638.9199.

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The Quaternary in the state of Rio Grande do Sul (RS), southern Brazil, is geologically represented by the coastal plain and was originated by successive events of Pleistocene-Holocene marine transgressions and the occurrence of alluvial deposits. This paper aimed to characterize the fish assemblage occurring in a swampy Quaternary area adjacent to Lagoa Pequena, a lacustrine system connected to the west margin of the Laguna dos Patos estuary. A checklist is also provided of the ichthyofauna so far recorded in limnic systems of Quaternary deposits in the state of Rio Grande do Sul. A total of

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Santos, Hersília de Andrade e., Paulo dos Santos Pompeu, and Carlos Barreira Martinez. "Swimming performance of the migratory Neotropical fish Leporinus reinhardti (Characiformes: Anostomidae)." Neotropical Ichthyology 5, no. 2 (2007): 139–46. http://dx.doi.org/10.1590/s1679-62252007000200007.

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The fishways built in Latin America were mainly based on those used in the northern hemisphere for passing salmonids upstream. However, the swimming capacity in terms of speed and endurance is a major factor concerning the design of a fishway, and this information is not available for migratory neotropical fish species. Therefore, studies on swimming performance of neotropical species is fundamental. The aim of this study was to estimate the critical, sustained and prolonged speeds for the piau-três-pintas Leporinus reinhardti, and to evaluate the influence of water temperature on the swimming

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32

Pereira, Poliana Ribeiro, Carlos Sérgio Agostinho, Rafael José de Oliveira, and Elineide Eugênio Marques. "Trophic guilds of fishes in sandbank habitats of a Neotropical river." Neotropical Ichthyology 5, no. 3 (2007): 399–404. http://dx.doi.org/10.1590/s1679-62252007000300019.

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The objective of this study was to characterize the trophic structure of the community of fishes exploiting riverine sandbank habitats. Collections were carried out during the period of October 1999 to December 2003, on six sand banks in the upper and middle portions of the Tocantins River drainage basin in central Brazil. The availability of food resources was evaluated based on the volume of the items present in the stomachs of all species. A total of 2,127 stomachs of fish belonging to 50 species were analyzed. Nine main trophic guilds grouped the local ichthyofauna according to diet. Aquat

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Mendes, Izabela, Heron Hilário, Daniel Teixeira, and de Carvalho Daniel Cardoso. "Challenges in assessing the Neotropical fishes using DNA metabarcoding." ARPHA Conference Abstracts 4 (March 4, 2021): e65093. https://doi.org/10.3897/aca.4.e65093.

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Species richness is a metric of biodiversity usually used in fish community assessment for monitoring programs. This metric is often obtained using traditional fisheries methods that rely on capture of target organisms, resulting in underestimation of fish species. DNA metabarcoding has been recognized as a powerful noninvasive alternative tool for fish biomonitoring and management. Despite the increasing popularity of this method for the assessment of aquatic megadiverse ecosystems, its implementation for studying the highly diverse Neotropical ichthyofauna still presents some challenges. One

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Reia, Lais, da Costa e. Silva Gabriel S., James R. Garcia-Ayala, F. Vicensotto Ana Maria P., and Ricardo C. Benine. "Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil." Check List 16, no. (3) (2020): 711–28. https://doi.org/10.15560/16.3.711.

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The ribeirão Sucuri, a tributary of the rio Tietê, and part of the upper rio Paraná basin, is located in the municipality of Pongaí, São Paulo state. The ichthyofauna of ribeirão Sucuri was sampled at nine collection sites in May 2018. Our study captured 408 specimens representing five orders, 11 families, and 35 species. Among the species collected, two have not been previously reported from the rio Tietê basin: Eigenmannia guairaca Peixoto, Dutra & Wosiacki, 2015 and Hoplias misionera Rosso, Mabragaña, González-Castro, Delpiani, Avigliano, Schenone & Días de Astarloa, 2016. Additiona

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Caetano, Dyego Leonardo Ferraz, Rafael Rogério Rosa, Verônica Rodrigues de Moraes, Daniela Ribas Jané, and Alexandre Fernandes Oliveira da Silva. "Influence of an artificial dam on the fish assemblage of a Neotropical stream." Acta Scientiarum. Biological Sciences 38, no. 3 (2016): 305. http://dx.doi.org/10.4025/actascibiolsci.v38i3.31943.

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The objective of this study was to evaluate the influence of a dam on the ecological parameters of the fish assemblages of a stream of second order of the upper Paraná River basin, southern Brazil. Samplings of abiotic data and ichthyofauna occurred quarterly between September 2012 and June 2013. Were collected 3,128 individuals in six orders, eight families and 13 species. The Cluster analysis (Jaccard) based on species composition indicated the separation of the sampling units into two groups, demonstrating the dissimilarity between upstream and downstream units. The artificial dam was chara

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Gandini, Cíntia Veloso, Francisco Alexandre Costa Sampaio, and Paulo Santos Pompeu. "Hydropeaking effects of on the diet of a Neotropical fish community." Neotropical Ichthyology 12, no. 4 (2014): 795–802. http://dx.doi.org/10.1590/1982-0224-20130151.

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The impact of hydropeaking by dams is still poorly understood. Studying the diet of fish subjected to that variation allows us to test the following hypotheses: 1) seasonal and daily changes in river flow, causes changes in the use of the feeding resources; 2) species presenting larger differences in diet between seasons will be those with larger diet changes due to hydropeaking; 3) hydropeaking effects will be more evident in species feeding on items that can be more affected by variable flows. Fish diet collected from the Grande River, downstream from Itutinga Dam, in January and July 2010,

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HUBERT, NICOLAS, FABRICE DUPONCHELLE, JESUS NUÑEZ, CARMEN GARCIA-DAVILA, DIDIER PAUGY, and JEAN-FRANÇOIS RENNO. "Phylogeography of the piranha genera Serrasalmus and Pygocentrus: implications for the diversification of the Neotropical ichthyofauna." Molecular Ecology 16, no. 10 (2007): 2115–36. http://dx.doi.org/10.1111/j.1365-294x.2007.03267.x.

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Silva-Oliveira, Cárlison, André Luiz Colares Canto, and Frank Raynner Vasconcelos Ribeiro. "Stream ichthyofauna of the Tapajós National Forest, Pará, Brazil." ZooKeys 580 (April 12, 2016): 125–44. https://doi.org/10.3897/zookeys.580.6659.

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The fish fauna of freshwater streams in the Tapajos National Forest was surveyed and a list of species is presented. The sampling was conducted from 2012 to 2013 during the dry season. Fish were collected with dip nets and seine nets in 22 streams of 1<sup>st</sup> to 3<sup>rd</sup> order. Sampling resulted in 3035 specimens belonging to 117 species, 27 families and six orders. The most abundant species were Bryconops aff. melanurus, Hemigrammus belottii, and Hemigrammus analis. Four undescribed species were recognized, one of which is known only from the area of this study. A significant diss

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Makrakis, Sergio, Theodore Castro-Santos, Maristela Cavicchioli Makrakis, Ricardo Luiz Wagner, and Maurício Spagnolo Adames. "Culverts in paved roads as suitable passages for Neotropical fish species." Neotropical Ichthyology 10, no. 4 (2012): 763–70. http://dx.doi.org/10.1590/s1679-62252012000400009.

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Improperly installed or poorly maintained culverts can pose a serious threat to fish by disrupting their habitat and endangering spawning success. Road culverts that are not designed for fish passage frequently can become obstacles. This can be especially problematic for migratory species, but can lead to fragmentation of resident populations as well. This study evaluated 40 culverts of 29 sites within a 25-km radius from Toledo city, Paraná State, southern Brazil, with respect to their likely effects on movement of the local ichthyofauna. We collected data on the shape and length of culverts,

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da, Costa Igor David, dos Santos Nunes Natalia Neto, and Zalmon Ilana Rosental. "Ichthyofauna associated with sandy beaches of the rio Machado, tributary of the rio Madeira, northern Brazil." Check List 17, no. (6) (2021): 1593–600. https://doi.org/10.15560/17.6.1593.

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The rio Machado is an large tributary of the rio Madeira, and investigations of the ichthyofauna are urgent given the current high threat of habitat loss on account of a hydroelectric plant under construction. Our inventory quantified 9,544 specimens, representing four orders and 38 species. Our study provides an unprecedented list of fish species from a poorly studied South American basin. This basin, which is considered one of the world’s biodiversity hotspots, presents high endemism, few cases of co-existence of phylogenetically related lineages, low species diversity, and few species

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Nobile, André B., Diogo Freitas-Souza, Francisco J. Ruiz-Ruano, et al. "DNA metabarcoding of Neotropical ichthyoplankton: Enabling high accuracy with lower cost." Metabarcoding and Metagenomics 3 (September 5, 2019): e35060. https://doi.org/10.3897/mbmg.3.35060.

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Knowledge of ichthyoplankton dynamics is extremely important for conservation management as it can provide information about preferential spawning sites, reproductive period, migratory routes and recruitment success, which can be used to guide management and conservation efforts. However, identification of the eggs and larvae of Neotropical freshwater fish is a difficult task. DNA barcodes have emerged as an alternative and highly accurate approach for species identification, but DNA barcoding can be time-consuming and costly. To solve this problem, we aimed to develop a simple protocol based

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Montoya‐Burgos, J. I. "Historical biogeography of the catfish genus Hypostomus (Siluriformes: Loricariidae), with implications on the diversification of Neotropical ichthyofauna." Molecular Ecology 12, no. 7 (2003): 1855–67. http://dx.doi.org/10.1046/j.1365-294x.2003.01857.x.

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Valdiviezo-Rivera, Jonathan, Carolina Carrillo-Moreno, and Claudia Koch. "Species and geographic distribution of Mylossoma Eigenmann & Kennedy, 1903 from Ecuador." Check List 16, no. (2) (2020): 317–22. https://doi.org/10.15560/16.2.317.

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A review of the species of the genus <em>Mylossoma </em>Eigenmann & Kennedy, 1903 found in the Ecuadorian Cis-Andean region was conducted. Two species were recognized: <em>M. albiscopum</em> (Cope, 1872) from the Putumayo, Napo, and Tigre river basins and <em>M. aureum</em> (Agassiz, 1829) from the Napo river basin. A map of geographical distribution and radiographs for both species are provided. Historical records of <em>M. duriventre</em> (Cuvier, 1818) were not confirmed in this geographical distribution.

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Melo, Bruno F., Ricardo C. Benine, Ricardo Britzke, Cecile S. Gama, and Claudio Oliveira. "An inventory of coastal freshwater fishes from Amapá highlighting the occurrence of eight new records for Brazil." ZooKeys 606 (July 21, 2016): 127–40. https://doi.org/10.3897/zookeys.606.9297.

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The Amazon Basin occupies a vast portion of northern South America and contains some of the highest species richness in the world. The northern Brazilian state of Amapá is delimited by the Amazonas River to the south, the Oyapock River to the northern boundary with French Guyana, and the Atlantic northeastern coast to Amazon estuary. Despite several expeditions to the Amazon in recent decades, little is known about the freshwater ichthyofauna from Amapá, with records limited to local inventories and species descriptions. This paper presents a compilation of the freshwater fish diversity sample

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Masson, Ignacio, Andrea Bertora, Juan José Rosso, et al. "Longitudinal patterns in water quality and fish assemblage structure in a low-gradient, temperate Neotropical stream disrupted by a point-source urban effluent." Limnetica 43, no. 1 (2023): 1. http://dx.doi.org/10.23818/limn.43.08.

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Low-gradient, prairie streams from the Pampa Plain, Argentina, constitute the southernmost geographic occurrence for many Neotropical fish species. Fish assemblages in Neotropical streams have shown drastic responses to the modification of habitat and water quality. Under this scenario it could be hypothesized that the water quality will be influenced by the anthropic activities and the natural conditions and that the ichthyofauna will be responsive. Therefore, understanding the functioning of these ecosystems is crucial for their conservation in a world with ever-growing anthropic pressures.

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Ferrareze, M., and M. G. Nogueira. "Impact assessment of the introduction of Cichla kelberi in a large Neotropical reservoir and its lateral lagoons (Upper Paraná River Basin, Brazil)." Brazilian Journal of Biology 75, no. 4 (2015): 1018–26. http://dx.doi.org/10.1590/1519-6984.05814.

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Abstract This study aimed to understand how the introduction of Cichla kelberi in Rosana Reservoir (Paranapanema River) affected the native ichthyofauna. Data on the structure of the small fish fauna assemblage were obtained before and after the introduction of this carnivorous species. Samplings were carried out in February and September of 2004, previously to the register of Cichla kelberi in the reservoir, and after its introduction, November of 2004, January, March, May and August of 2005, February and June of 2006, February and July of 2007, February and October of 2008 and February of 20

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Diniz, Paulo Baltazar, Hatus de Oliveira Siqueira, Tâmer de Oliveira Faleiros, et al. "Fishes from lakes and tributaries of the Rio Santa Bárbara, Sapucaí‑Mirim/Grande hydrographic basin, São Paulo, Brazil." Check List 15, no. (4) (2019): 629–40. https://doi.org/10.15560/15.4.629.

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Rio Santa Bárbara, a small tributary of the Rio Sapucaí-Mirim, has undergone severe human intervention over the past 80 years. We surveyed the ichthyofauna of this river, some surrounding lakes, and the Rio Potreiro, a tributary. Four campaigns were carried out, 2 in the dry season and 2 in the rainy season. We found 920 specimens at 12 sites and included 32 species belonging to 6 orders and 16 families. The order Characiformes was found to be best represented in our study, followed by the orders Cichliformes and Siluriformes. The family Characidae was the most numerous, followed

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Araújo, FG, ABI Santos, and RJ Albieri. "Assessing fish assemblages similarity above and below a dam in a Neotropical reservoir with partial blockage." Brazilian Journal of Biology 73, no. 4 (2013): 727–36. http://dx.doi.org/10.1590/s1519-69842013000400007.

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Damming rivers disrupts the water flow and changes the ichthyofauna organisation. We investigated an impoundment with permanent connection and homogeneous environmental conditions between the zones above and below the dam. Temperature was comparatively higher during wet season irrespective of zone, and both zones had higher dissolved oxygen, conductivity and transparency in the dry season. A total of 1687 individuals comprising 27 species were collected in the downriver zone, while the reservoir had 879 individuals and 23 species. Each zone had different fish assemblage composition and structu

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Silva, Thiago Buosi, and Virgínia Sanches Uieda. "Preliminary data on the feeding habits of the freshwater stingrays Potamotrygon falkneri and Potamotrygon motoro (Potamotrygonidae) from the Upper Paraná River basin, Brazil." Biota Neotropica 7, no. 1 (2007): 221–26. http://dx.doi.org/10.1590/s1676-06032007000100027.

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Stingrays of the Potamotrygonidae family are a singular group of Neotropical ichthyofauna. Although ancient reports exist about the group, there are still many questions that need to be clarified, such as the biology of the species that occur in the Paraná-Paraguay River system. In the present work, the diet of Potamotrygon falkneri and Potamotrygon motoro, captured in the Upper Paraná River, downstream from the Engenheiro Souza Dias Hydroelectric Power Station (UHE Jupiá), was analyzed. Both species showed a diversified diet, consisting of 14 food items, including Mollusca, Crustacea, Insecta

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Barbosa, Maria. "Description of two new species of the catfish genus Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the coastal river basins, southeastern Brazil." Vertebrate Zoology 63 (December 18, 2013): 269–75. https://doi.org/10.3897/vz.63.e31442.

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Two new species of catfish genus Trichomycterus are described from southeastern Brazil. Trichomycterus mimosensis new species is diagnosed by the number of pectoral-fin rays, the first pectoral-fin ray prolonged as a filament, the length of the pectoral-fin filament, the length of the dorsal-fin base, the morphology of the metapterygoid, the length of the maxillary barbel, the morphology of the hypobranchial 1, the width and depth of the head, the depth of the caudal peduncle, the shape of the head and caudal fin, and the colour pattern. Trichomycterus gasparinii new species is diagnosed by th

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