Ecology, Evolution, Behavior and Systematics, Aquatic Science
52
Scopus Publications
1132
Scholar Citations
19
Scholar h-index
29
Scholar i10-index
Scopus Publications
What determines trophic niche breadth? A global analysis of freshwater fishes using isospaces Friedrich Wolfgang Keppeler, Tommaso Giarrizzo, Carmen G. Montaña, Alphonse Adite, Şenol Akın, Ronaldo Angelini, Caroline C. Arantes, Evanilde Benedito, Thethela Bokhutlo, Rana El-Sabaawi, Alexandre Garcia, Ivan Gonzalez-Bergonzoni, David Hoeinghaus, Joel Hoffman, Olaf P. Jensen, Erik Jeppesen, R. Keller Kopf, Craig A. Layman, Edwin Orlando Lopez, Bryan M. Maitland, Shin-ichiro S. Matsuzaki, Jill A. Olin, Gordon Paterson, Yasmin Quintana, Carlos Eduardo de Rezende, Ashley Trudeau, Paulo A. Trindade, Thomas F. Turner, Eugenia Zandona, Kirk O. Winemiller Reviews in Fish Biology and Fisheries, 2026
Phylogenetic diversity of stream fishes reflects habitat variation, while functional diversity responds to human impacts Bruno E. Soares, Gabriel Nakamura, Fernando G. Carvalho, Mauricio R. Reis, Maria D. L. Lucena, Tiago O. Begot, Friedrich W. Keppeler, Leandro Juen, Luciano F. A. Montag Ecosphere, 2026 Human‐induced land‐use changes are a major driver of biodiversity loss in Amazonian freshwater ecosystems, while natural variation among aquatic environments also shapes community structure. We assessed how local habitat variables and land‐use impacts influence the functional and phylogenetic diversity of stream fish assemblages across 71 Amazonian streams. We quantified indices of functional diversity (functional richness, evenness, and divergence) and phylogenetic diversity (phylogenetic richness, mean phylogenetic distance, and nearest taxon distance), and evaluated their associations with environmental variables using generalized linear models. Our results revealed that human impacts in riparian zones were positively associated with functional richness but negatively associated with functional divergence, suggesting the addition of functionally similar species in disturbed environments. In contrast, phylogenetic diversity responded primarily to habitat heterogeneity: coarse litter was negatively associated with phylogenetic diversity, whereas undercut banks were positively associated with it, indicating that structural complexity supports phylogenetically diverse assemblages. Our findings emphasize the importance of habitat heterogeneity and riparian integrity to conserve evolutionary history and ecological functions in Amazonian streams.
Importance and spatial patterns of invisible fisheries in Amazonian clear-water rivers as revealed by fisher knowledge and collaboration Renato A. M. Silvano, Kaluan C. Vieira, Paula E. R. Pereyra, Luís H. Tomazoni‐Silva, Ivan A. Alves, Jaqueline G. Bezerra, Márcia C. F. Dutra, Friedrich W. Keppeler, Carolina B. Nunes, Cristiane V. Cunha, Gustavo Hallwass Conservation Biology, 2026 The Brazilian Amazon contains the world's most diverse fish assemblages. These assemblages can be affected by freshwater fisheries, which provide food and income for riverine people, and by accelerating environmental change. We collaborated with local fishers to provide a comprehensive assessment of the spatial patterns of fish use in 3 clear‐water rivers in the Brazilian Amazon: the Tapajos, Trombetas, and Tocantins. We interviewed 638 fishers in 39 communities about fish use for domestic consumption or sale, daily catches per fisher, and catch per unit effort (CPUE). We then assessed the influence of river identity, protected areas (PAs), forest cover, and landscape complexity (independent variables) on catches and CPUE estimated from interviews (response variables) through linear models. We also analyzed data from participatory catch monitoring in 21 communities along the Tapajos River (5668 fish landings). Twenty‐one fish species were the most harvested and cited by interview respondents, 16 of which were migratory fishes, accounting for 82% of catches in the Tapajos River. According to fishers, daily fish catches per fisher were higher outside PAs (effect size 0.33) than inside, whereas CPUE was higher inside PAs than outside (−0.27). Catches were negatively associated with forest cover (−0.20), whereas river landscape complexity was positively associated with fish catch (0.96) and CPUE (0.66). These results can support management strategies, from regional to large scales, by reinforcing the relevance of PAs in clear‐water rivers and showing the influence of landscape on fish catches. Our collaboration with fishers provided robust baseline data that can be used to inform inclusive, precautionary, and adaptive policies for conservation of threatened rivers.
A multidriver assessment of beach litter accumulation rates Lucio Brabo, Henrique Araújo de Oliveira, Tamyris Pegado, Ryan Andrades, Friedrich Wolfgang Keppeler, Manoela de Araujo Sampaio, Francisco José Mariano Vasconcelos, Alexandre David Dantas, Regina Kátia Saraiva Carneiro, Kelly Ferreira Cottens, Nelson Guillermo Rangel-Buitrago, Tarin Frota Mont'Alverne, Marcelo Oliveira Soares, Tommaso Giarrizzo Marine Pollution Bulletin, 2026
Ecological succession of fishes in a large Amazonian off river reservoir Friedrich Wolfgang Keppeler, Marcos Augusto Mendes Rocha, Paulo Arthur de Abreu Trindade, Eurico Mesquita Noleto-Filho, José Amorim Reis-Filho, Jenny J. Morales-Parrado, Valter M. Azevedo-Santos, Ronaldo Angelini, Tommaso Giarrizzo Scientific Reports, 2025 Converting river flows into reservoirs is a major disturbance that triggers ecological succession, altering the functional and phylogenetic structure of aquatic communities. However, this process in off-river reservoirs remains understudied, despite its potential implications for biodiversity conservation. Here, we investigated fish assemblage colonization and establishment in a recently created off-river intermediate reservoir (IR) within the Belo Monte Hydroelectric Complex in the Amazon. Fish were sampled over seven years in the IR and compared to the main reservoir (MR) and a more pristine sector upstream (UP). Biodiversity in the IR increased over time, alongside shifts in species composition, traits, and phylogenetic structure. Dominance of large and benthic-rheophilic species rose, and the proportion of adults increased, indicating improved reproductive potential. These changes were likely influenced by environmental filtering, dispersal limitations, and resource scarcity during the initial years post-formation. Over time, the IR became more similar to the MR than the UP, reflecting species decay similarity and environmental resemblance between reservoirs. Dissimilarity between the IR and river sectors diminished as succession progressed. Our results suggest IR may serve as a refuge for endemic and rare rheophilic fish, supporting fish stocks for riverine communities and offering a conservation tool amid hydropower development and climate change. The true test of the IR’s value for local biodiversity will unfold as it ages, making consistent monitoring of the IR essential to assess its long-term ecological impact.
Same data, different analysts: variation in effect sizes due to analytical decisions in ecology and evolutionary biology Elliot Gould, Hannah S. Fraser, Timothy H. Parker, Shinichi Nakagawa, Simon C. Griffith, Peter A. Vesk, Fiona Fidler, Daniel G. Hamilton, Robin N. Abbey-Lee, Jessica K. Abbott, Luis A. Aguirre, Carles Alcaraz, Irith Aloni, Drew Altschul, Kunal Arekar, Jeff W. Atkins, Joe Atkinson, Christopher M. Baker, Meghan Barrett, Kristian Bell, Suleiman Kehinde Bello, Iván Beltrán, Bernd J. Berauer, Michael Grant Bertram, Peter D. Billman, Charlie K. Blake, Shannon Blake, Louis Bliard, Andrea Bonisoli-Alquati, Timothée Bonnet, Camille Nina Marion Bordes, Aneesh P. H. Bose, Thomas Botterill-James, Melissa Anna Boyd, Sarah A. Boyle, Tom Bradfer-Lawrence, Jennifer Bradham, Jack A. Brand, Martin I. Brengdahl, Martin Bulla, Luc Bussière, Ettore Camerlenghi, Sara E. Campbell, Leonardo L. F. Campos, Anthony Caravaggi, Pedro Cardoso, Charles J. W. Carroll, Therese A. Catanach, Xuan Chen, Heung Ying Janet Chik, Emily Sarah Choy, Alec Philip Christie, Angela Chuang, Amanda J. Chunco, Bethany L. Clark, Andrea Contina, Garth A. Covernton, Murray P. Cox, Kimberly A. Cressman, Marco Crotti, Connor Davidson Crouch, Pietro B. D’Amelio, Alexandra Allison de Sousa, Timm Fabian Döbert, Ralph Dobler, Adam J. Dobson, Tim S. Doherty, Szymon Marian Drobniak, Alexandra Grace Duffy, Alison B. Duncan, Robert P. Dunn, Jamie Dunning, Trishna Dutta, Luke Eberhart-Hertel, Jared Alan Elmore, Mahmoud Medhat Elsherif, Holly M. English, David C. Ensminger, Ulrich Rainer Ernst, Stephen M. Ferguson, Esteban Fernandez-Juricic, Thalita Ferreira-Arruda, John Fieberg, Elizabeth A. Finch, Evan A. Fiorenza, David N. Fisher, Amélie Fontaine, Wolfgang Forstmeier, Yoan Fourcade, Graham S. Frank, Cathryn A. Freund, Eduardo Fuentes-Lillo, Sara L. Gandy, Dustin G. Gannon, Ana I. García-Cervigón, Alexis C. Garretson, Xuezhen Ge, William L. Geary, Charly Géron, Marc Gilles, Antje Girndt, Daniel Gliksman, Harrison B. Goldspiel, Dylan G. E. Gomes, Megan Kate Good, Sarah C. Goslee, J. Stephen Gosnell, Eliza M. Grames, Paolo Gratton, Nicholas M. Grebe, Skye M. Greenler, Maaike Griffioen, Daniel M. Griffith, Frances J. Griffith, Jake J. Grossman, Ali Güncan, Stef Haesen, James G. Hagan, Heather A. Hager, Jonathan Philo Harris, Natasha Dean Harrison, Sarah Syedia Hasnain, Justin Chase Havird, Andrew J. Heaton, María Laura Herrera-Chaustre, Tanner J. Howard, Bin-Yan Hsu, Fabiola Iannarilli, Esperanza C. Iranzo, Erik N. K. Iverson, Saheed Olaide Jimoh, Douglas H. Johnson, Martin Johnsson, Jesse Jorna, Tommaso Jucker, Martin Jung, Ineta Kačergytė, Oliver Kaltz, Alison Ke, Clint D. Kelly, Katharine Keogan, Friedrich Wolfgang Keppeler, Alexander K. Killion, Dongmin Kim, David P. Kochan, Peter Korsten, Shan Kothari, Jonas Kuppler, Jillian M. Kusch, Malgorzata Lagisz, Kristen Marianne Lalla, Daniel J. Larkin, Courtney L. Larson, Katherine S. Lauck, M. Elise Lauterbur, Alan Law, Don-Jean Léandri-Breton, Jonas J. Lembrechts, Kiara L’Herpiniere, Eva J. P. Lievens, Daniela Oliveira de Lima, Shane Lindsay, Martin Luquet, Ross MacLeod, Kirsty H. Macphie, Kit Magellan, Magdalena M. Mair, Lisa E. Malm, Stefano Mammola, Caitlin P. Mandeville, Michael Manhart, Laura Milena Manrique-Garzon, Elina Mäntylä, Philippe Marchand, Benjamin Michael Marshall, Charles A. Martin, Dominic Andreas Martin, Jake Mitchell Martin, April Robin Martinig, Erin S. McCallum, Mark McCauley, Sabrina M. McNew, Scott J. Meiners, Thomas Merkling, Marcus Michelangeli, Maria Moiron, Bruno Moreira, Jennifer Mortensen, Benjamin Mos, Taofeek Olatunbosun Muraina, Penelope Wrenn Murphy, Luca Nelli, Petri Niemelä, Josh Nightingale, Gustav Nilsonne, Sergio Nolazco, Sabine S. Nooten, Jessie Lanterman Novotny, Agnes Birgitta Olin, Chris L. Organ, Kate L. Ostevik, Facundo Xavier Palacio, Matthieu Paquet, Darren James Parker, David J. Pascall, Valerie J. Pasquarella, John Harold Paterson, Ana Payo-Payo, Karen Marie Pedersen, Grégoire Perez, Kayla I. Perry, Patrice Pottier, Michael J. Proulx, Raphaël Proulx, Jessica L Pruett, Veronarindra Ramananjato, Finaritra Tolotra Randimbiarison, Onja H. Razafindratsima, Diana J. Rennison, Federico Riva, Sepand Riyahi, Michael James Roast, Felipe Pereira Rocha, Dominique G. Roche, Cristian Román-Palacios, Michael S. Rosenberg, Jessica Ross, Freya E. Rowland, Deusdedith Rugemalila, Avery L. Russell, Suvi Ruuskanen, Patrick Saccone, Asaf Sadeh, Stephen M. Salazar, Kris Sales, Pablo Salmón, Alfredo Sánchez-Tójar, Leticia Pereira Santos, Francesca Santostefano, Hayden T. Schilling, Marcus Schmidt, Tim Schmoll, Adam C. Schneider, Allie E. Schrock, Julia Schroeder, Nicolas Schtickzelle, Nick L. Schultz, Drew A. Scott, Michael Peter Scroggie, Julie Teresa Shapiro, Nitika Sharma, Caroline L. Shearer, Diego Simón, Michael I. Sitvarin, Fabrício Luiz Skupien, Heather Lea Slinn, Grania Polly Smith, Jeremy A. Smith, Rahel Sollmann, Kaitlin Stack Whitney, Shannon Michael Still, Erica F. Stuber, Guy F. Sutton, Ben Swallow, Conor Claverie Taff, Elina Takola, Andrew J. Tanentzap, Rocío Tarjuelo, Richard J. Telford, Christopher J. Thawley, Hugo Thierry, Jacqueline Thomson, Svenja Tidau, Emily M. Tompkins, Claire Marie Tortorelli, Andrew Trlica, Biz R. Turnell, Lara Urban, Stijn Van de Vondel, Jessica Eva Megan van der Wal, Jens Van Eeckhoven, Francis van Oordt, K. Michelle Vanderwel, Mark C. Vanderwel, Karen J. Vanderwolf, Juliana Vélez, Diana Carolina Vergara-Florez, Brian C. Verrelli, Marcus Vinícius Vieira, Nora Villamil, Valerio Vitali, Julien Vollering, Jeffrey Walker, Xanthe J. Walker, Jonathan A. Walter, Pawel Waryszak, Ryan J. Weaver, Ronja E. M. Wedegärtner, Daniel L. Weller, Shannon Whelan, Rachel Louise White, David William Wolfson, Andrew Wood, Scott W. Yanco, Jian D. L. Yen, Casey Youngflesh, Giacomo Zilio, Cédric Zimmer, Gregory Mark Zimmerman, Rachel A. Zitomer BMC Biology, 2025 Although variation in effect sizes and predicted values among studies of similar phenomena is inevitable, such variation far exceeds what might be produced by sampling error alone. One possible explanation for variation among results is differences among researchers in the decisions they make regarding statistical analyses. A growing array of studies has explored this analytical variability in different fields and has found substantial variability among results despite analysts having the same data and research question. Many of these studies have been in the social sciences, but one small "many analyst" study found similar variability in ecology. We expanded the scope of this prior work by implementing a large-scale empirical exploration of the variation in effect sizes and model predictions generated by the analytical decisions of different researchers in ecology and evolutionary biology. We used two unpublished datasets, one from evolutionary ecology (blue tit, Cyanistes caeruleus, to compare sibling number and nestling growth) and one from conservation ecology (Eucalyptus, to compare grass cover and tree seedling recruitment). The project leaders recruited 174 analyst teams, comprising 246 analysts, to investigate the answers to prespecified research questions. Analyses conducted by these teams yielded 141 usable effects (compatible with our meta-analyses and with all necessary information provided) for the blue tit dataset, and 85 usable effects for the Eucalyptus dataset. We found substantial heterogeneity among results for both datasets, although the patterns of variation differed between them. For the blue tit analyses, the average effect was convincingly negative, with less growth for nestlings living with more siblings, but there was near continuous variation in effect size from large negative effects to effects near zero, and even effects crossing the traditional threshold of statistical significance in the opposite direction. In contrast, the average relationship between grass cover and Eucalyptus seedling number was only slightly negative and not convincingly different from zero, and most effects ranged from weakly negative to weakly positive, with about a third of effects crossing the traditional threshold of significance in one direction or the other. However, there were also several striking outliers in the Eucalyptus dataset, with effects far from zero. For both datasets, we found substantial variation in the variable selection and random effects structures among analyses, as well as in the ratings of the analytical methods by peer reviewers, but we found no strong relationship between any of these and deviation from the meta-analytic mean. In other words, analyses with results that were far from the mean were no more or less likely to have dissimilar variable sets, use random effects in their models, or receive poor peer reviews than those analyses that found results that were close to the mean. The existence of substantial variability among analysis outcomes raises important questions about how ecologists and evolutionary biologists should interpret published results, and how they should conduct analyses in the future.
Brazil’s hypocrisy at COP30 José Amorim Reis-Filho, Tommaso Giarrizzo, Friedrich Wolfgang Keppeler, Eurico Noleto-Filho, Marcelo Oliveira Soares, Valter M. Azevedo-Santos, Guilherme O. Longo, Mariana Bender, Rafael A. Magris, Philip M. Fearnside Science, 2025
Looks Can Be Deceiving: Morphological Traits Are Weakly Associated With the Isotopic Niches of Freshwater Fishes Julian D. Olden, Friedrich W. Keppeler, Timothy D. Jardine, Stéphanie Boulêtreau, Chris Harrod, Michelle C. Jackson, Angus R. McIntosh, Marie‐Elodie Perga, Josie South, Pablo Tedesco, Chloé Vagnon, Julien Cucherousset Global Ecology and Biogeography, 2025 AimFueled by the emergence of global‐scale databases, fish morphological traits are now routinely used as a proxy for trophic ecology when estimating functional diversity. Yet, a rigorous empirical validation of trophic‐morphology relationships is lacking. This study offers a global test of whether species' morphology is associated with a known indicator of trophic ecology, stable isotope ratios of carbon and nitrogen.LocationWorldwide.Time Period1992–2023.Major Taxa StudiedFreshwater fishes (Actinopterygii).MethodsIsotope‐morphology relationships were examined using δ13C and δ15N values from 811 fish communities and ten species‐level morphological traits with direct relevance for foraging behaviour (body length, body shape, and position of the mouth, eyes and fins) for 1282 species. Associations were assessed with Multiple Regression on Distance Matrices and Multivariate Generalised Linear Models (MGLM). Analyses were repeated at the individual level for five fish species.ResultsSpecies morphological similarities explained, on average, 10% of the variation in stable isotope values for fish communities, with > 6% of the communities exhibiting statistically significant associations. The MGLM explained 53% of the variation in δ13C and 48% in δ15N, with approximately 97% and 77% of this variation, respectively, attributed to the site identity (random effect), not the morphological traits. Individual traits contributed minimally (each < 1% variation explained), except for oral gape length (8.3%) and maximum body length (4.7%). Herbivores had significantly weaker isotope‐morphology correlations than omnivores and carnivores for δ15N, while no significant differences were observed for δ13C. At the individual level, morphology explained 0% to 16% of isotopic variation within populations, averaging 4%.Main ConclusionsWeak isotope‐morphology relationships for freshwater fishes may arise from the influence of a host of biological, environmental, or methodological factors, or may truly indicate a fundamental disconnection between morphological traits measured at the species level and the trophic niche of populations that are manifested in food webs. Ecologists should recognise the limitations of assuming morphological traits are ‘functional’ in the sense that they can offer a reasonable proxy of a species' trophic ecology at large scales.
Testing food web theory in a large lake: The role of body size in habitat coupling in Lake Michigan Bryan M. Maitland, Harvey A. Bootsma, Charles R. Bronte, David B. Bunnell, Zachary S. Feiner, Kari H. Fenske, William W. Fetzer, Carolyn J. Foley, Brandon S. Gerig, Austin Happel, Tomas O. Höök, Friedrich W. Keppeler, Matthew S. Kornis, Ryan F. Lepak, A. Scott McNaught, Brian M. Roth, Benjamin A. Turschak, Joel C. Hoffman, Olaf P. Jensen Ecology, 2024
NEOTROPICAL FRESHWATER FISHES: A dataset of occurrence and abundance of freshwater fishes in the Neotropics 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, Zilda Margarete Seixas de Lucena Ecology, 2023
War serves as excuse for Amazon destruction Paulo Arthur A. Trindade, Juliana S. Araújo, Valter M. Azevedo-Santos, Friedrich W. Keppeler, Tommaso Giarrizzo, Philip M. Fearnside Science, 2022
Introduction: Fishes of the Brazilian Amazon Friedrich W. Keppeler, Renato A. M. Silvano Fish and Fisheries in the Brazilian Amazon People Ecology and Conservation in Black and Clear Water Rivers, 2020
Studied Regions and Methodology Gustavo Hallwass, Pedro Peixoto Nitschke, Friedrich W. Keppeler Fish and Fisheries in the Brazilian Amazon People Ecology and Conservation in Black and Clear Water Rivers, 2020
Atlas of Fish of Tapajós and Negro Rivers III: Perciformes and Other Fish Groups Renato A. M. Silvano, Pedro P. Nitschke, Kaluan C. Vieira, Paula Nagl, Astrid T. R. Martínez, Márcia C. F. Dutra, Friedrich W. Keppeler, Junior A. Chuctaya, Marcelo C. Andrade Fish and Fisheries in the Brazilian Amazon People Ecology and Conservation in Black and Clear Water Rivers, 2020
Atlas of Fish of Tapajós and Negro Rivers I: Characiformes Renato A. M. Silvano, Pedro P. Nitschke, Kaluan C. Vieira, Paula Nagl, Astrid T. R. Martínez, Junior A. Chuctaya, Márcia C. F. Dutra, Friedrich W. Keppeler, Anaís R. P. Rowedder, Marcelo C. Andrade Fish and Fisheries in the Brazilian Amazon People Ecology and Conservation in Black and Clear Water Rivers, 2020
Atlas of Fish of Tapajós and Negro Rivers II: Gymnotiformes and Siluriformes Renato A. M. Silvano, Pedro P. Nitschke, Kaluan C. Vieira, Paula Nagl, Astrid T. R. Martínez, Márcia C. F. Dutra, Friedrich W. Keppeler, Junior A. Chuctaya, Henrique N. Oliveira, Marcelo C. Andrade Fish and Fisheries in the Brazilian Amazon People Ecology and Conservation in Black and Clear Water Rivers, 2020
What determines trophic niche breadth? A global analysis of freshwater fishes using isospaces FW Keppeler, T Giarrizzo, CG Montaña, A Adite, Ş Akın, R Angelini, ... Reviews in Fish Biology and Fisheries 36 (1), 13 , 2026 2026
Phylogenetic diversity of stream fishes reflects habitat variation, while functional diversity responds to human impacts BE Soares, G Nakamura, FG Carvalho, MR Reis, MDL Lucena, TO Begot, ... Ecosphere 17 (4), e70629 , 2026 2026
Importance and spatial patterns of invisible fisheries in Amazonian clear‐water rivers as revealed by fisher knowledge and collaboration RAM Silvano, KC Vieira, PER Pereyra, LH Tomazoni‐Silva, IA Alves, ... Conservation Biology 40 (1), e70164 , 2026 2026 Citations: 2
A multidriver assessment of beach litter accumulation rates L Brabo, HA de Oliveira, T Pegado, R Andrades, FW Keppeler, ... Marine Pollution Bulletin 223, 119083 , 2026 2026 Citations: 1
Participatory monitoring with VA'A canoes identifies key environmental factors driving microplastic distribution AD Dantas, L Brabo, TM Garcia, FW Keppeler, R Andrades, T Pegado, ... Marine Pollution Bulletin 223, 119030 , 2026 2026 Citations: 2
Brazil’s hypocrisy at COP30 JA Reis-Filho, T Giarrizzo, FW Keppeler, E Noleto-Filho, MO Soares, ... Science 390 (6775), 794-795 , 2025 2025 Citations: 3
Looks Can Be Deceiving: Morphological Traits Are Weakly Associated With the Isotopic Niches of Freshwater Fishes JD Olden, FW Keppeler, TD Jardine, S Boulêtreau, C Harrod, MC Jackson, ... Global Ecology and Biogeography 34 (9), e70124 , 2025 2025 Citations: 2
Ecological succession of fishes in a large Amazonian off river reservoir FW Keppeler, MAM Rocha, PA de Abreu Trindade, EM Noleto-Filho, ... Scientific Reports 15 (1), 22616 , 2025 2025
Growing Cities and Shrinking Fish? Potential Urbanization Effects on Fish and Fisheries in Tropical Rivers RAM Silvano, FW Keppeler, G Hallwass Ecology of Tropical Cities, Volume I: Natural and Social Sciences Applied to … , 2025 2025
Growing Cities and Shrinking Fish? RAM Silvano, FW Keppeler, G Hallwass Ecology of Tropical Cities, Volume I: Natural and Social Sciences Applied to … , 2025 2025
Same data, different analysts: variation in effect sizes due to analytical decisions in ecology and evolutionary biology E Gould, HS Fraser, TH Parker, S Nakagawa, SC Griffith, PA Vesk, ... BMC biology 23 (1), 35 , 2025 2025 Citations: 120
The projected impacts of climate change and fishing pressure on a tropical marine food web R Angelini, MAL Lima, AS Lira, F Lucena-Frédou, T Frédou, A Bertrand, ... Marine Environmental Research 204, 106909 , 2025 2025 Citations: 7
Monitoramento inteligente de peixes amazônicos: detecção e classificação com aprendizado profundo em passagens de peixes FLS NOGUEIRA, T GIARRIZZO, E NOLETO, LM SOUSA, FW KEPPELER, ... 2025
Testing food web theory in a large lake: The role of body size in habitat coupling in Lake Michigan BM Maitland, HA Bootsma, CR Bronte, DB Bunnell, ZS Feiner, KH Fenske, ... Ecology 105 (10), e4413 , 2024 2024 Citations: 12
Use of long-term underwater camera surveillance to assess the effects of the largest Amazonian hydroelectric dam on fish communities K Schmid, FW Keppeler, FRM da Silva, JH da Silva Santos, ... Scientific Reports 14 (1), 22366 , 2024 2024 Citations: 3
Coastal wetland restoration through the lens of Odum's theory of ecosystem development FW Keppeler, AS Engel, LM Hooper‐Bùi, PC López‐Duarte, CW Martin, ... Restoration Ecology 32 (3), e14072 , 2024 2024 Citations: 9
Foodwebai: Creating and augmenting food webs with natural language models EM Noleto Filho, FW Keppeler, JA Reis-Filho, T Giarrizzo, N Keenlyside, ... Preprint URL: https://foodwebai. shinyapps. io/foodweb, doi 10 , 2024 2024 Citations: 2
Explorando a biodiversidade do rio Xingu: apresentação e validação de um novo equipamento de amostragem de DNA ambiental BG BAHIANA, T GIARRIZZO, FW KEPPELER 2024
From fisher tales to scientific evidence: revealing the significance of estuarine and mangrove habitats as nursery grounds for juveniles of the largest Atlantic Ocean snapper FRM da Silva, EM Noleto Filho, ML Gallina, FW Keppeler, M Loiola, ... Frontiers in Marine Science 10, 1292788 , 2023 2023 Citations: 9
MOST CITED SCHOLAR PUBLICATIONS
Same data, different analysts: variation in effect sizes due to analytical decisions in ecology and evolutionary biology E Gould, HS Fraser, TH Parker, S Nakagawa, SC Griffith, PA Vesk, ... BMC biology 23 (1), 35 , 2025 2025 Citations: 120
The relationship between trophic level and body size in fishes depends on functional traits FW Keppeler, CG Montaña, KO Winemiller Ecological Monographs 90 (4), e01415 , 2020 2020 Citations: 105
Land cover, riparian zones, and instream habitat influence stream fish assemblages in the eastern Amazon LFA Montag, KO Winemiller, FW Keppeler, H Leão, NL Benone, ... Ecology of Freshwater Fish, 1-13 , 2019 2019 Citations: 95
Early impacts of the largest Amazonian hydropower project on fish communities FW Keppeler, MC Andrade, PAA Trindade, LM Sousa, CC Arantes, ... Science of the Total Environment 838, 155951 , 2022 2022 Citations: 66
The morphology–diet relationship and its role in the coexistence of two species of annual fishes FW Keppeler, LEK Lanés, AS Rolon, C Stenert, P Lehmann, M Reichard, ... Ecology of Freshwater Fish 24 (1), 77-90 , 2015 2015 Citations: 65
Influence of protected areas on fish assemblages and fisheries in a large tropical river FW Keppeler, G Hallwass, RAM Silvano Oryx 51 (2), 268–279 , 2017 2017 Citations: 64
Ecological influences of human population size and distance to urban centres on fish communities in tropical lakes FW Keppeler, AC de Souza, G Hallwass, A Begossi, MC de Almeida, ... Aquatic Conservation: Marine and Freshwater Ecosystems, 1-14 , 2018 2018 Citations: 49
NEOTROPICAL FRESHWATER FISHES: A dataset of occurrence and abundance of freshwater fishes in the Neotropics LH Tonella, R Ruaro, VS Daga, DAZ Garcia, OB Vitorino, ... Ecology 104 (4), e3713 , 2023 2023 Citations: 45
Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape FW Keppeler, JA Olin, PC López‐Duarte, MJ Polito, LM Hooper‐Bùi, ... Limnology and Oceanography Letters 6 (6), 360-368 , 2021 2021 Citations: 39
Abundance variations and life history traits of two sympatric species of Neotropical annual fish (Cyprinodontiformes: Rivulidae) in temporary ponds of southern Brazil LEK Lanés, FW Keppeler, L Maltchik Journal of Natural History 48 (31-32), 1971-1988 , 2014 2014 Citations: 35
Food web modeling indicates the potential impacts of increasing deforestation and fishing pressure in the Tapajós River, Brazilian Amazon L Capitani, R Angelini, FW Keppeler, G Hallwass, RAM Silvano Regional Environmental Change 21 (2), 42 , 2021 2021 Citations: 31
What makes a good catch? Effects of variables from individual to regional scales on tropical small-scale fisheries FW Keppeler, G Hallwass, F Santos, LHT da Silva, RAM Silvano Fisheries Research 229, 105571 , 2020 2020 Citations: 31
Functional and trophic diversity of fishes in the Mekong-3S river system: comparison of morphological and isotopic patterns CG Montaña, C Ou, FW Keppeler, KO Winemiller Environmental Biology of Fishes 103 (2), 185-200 , 2020 2020 Citations: 29
Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis Y Quintana, FW Keppeler, KO Winemiller Ecology 104 (5), e4024 , 2023 2023 Citations: 28
Abundance, sex-ratio, length–weight relation, and condition factor of non-annual killifish Atlantirivulus riograndensis (Actinopterygii: Cyprinodontiformes: Rivulidae) in Lagoa … LEK Lanés, FW Keppeler, L Maltchik Acta Ichthyologica et Piscatoria 42, 247-252 , 2012 2012 Citations: 26
Can ancestry and morphology be used as surrogates for species niche relationships? FW Keppeler, KO Winemiller Ecology and evolution 10 (13), 6562-6578 , 2020 2020 Citations: 22
The role of deterministic factors and stochasticity on the trophic interactions between birds and fish in temporary floodplain ponds FW Keppeler, DA Cruz, G Dalponti, RP Mormul Hydrobiologia 773 (1), 225-240 , 2016 2016 Citations: 22
Effects of hydrology on fish diversity and assemblage structure in a Texan coastal plains river LM Bower, FW Keppeler, ER Cunha, Y Quintana, DE Saenz, ... Transactions of the American Fisheries Society , 2019 2019 Citations: 19
Is There a Relationship between Fish Cannibalism and Latitude or Species Richness? LS Pereira, FW Keppeler, AA Agostinho, KO Winemiller PLoS ONE 12 (1), 1-14 , 2017 2017 Citations: 19
Seasonal variation in fish trophic networks in two clear-water streams in the Central Llanos region, Venezuela CC Peterson, FW Keppeler, DE Saenz, LM Bower, KO Winemiller Neotropical Ichthyology 15 (2), e160125 , 2017 2017 Citations: 17
