@article {5630, title = {Age and growth of the Amazonian migratory catfish Brachyplatystoma rousseauxii in the Madeira River basin before the construction of dams}, journal = {Neotropical Ichthyology}, volume = {16}, year = {2018}, pages = {e170130, 2018}, abstract = {

The goliath catfish Brachyplatystoma rousseauxii has crucial economical and ecological functions in the Amazon basin. Although its life history characteristics have been studied in the Amazon, there is little information in the Madeira River basin, which holds genetically distinct populations and where dams were recently built. Using fish collected in Bolivia, Brazil and Peru, this study provides a validation of growth rings deposition and details the growth patterns of B. rousseauxii in the Madeira before the dams{\textquoteright} construction. Age structure and growth parameters were determined from 497 otolith readings. The species exhibits two growth rings per year and sampled fish were between 0 and 16 years old. In the Brazilian portion of the basin, mainly young individuals below 5 years old were found, whereas older fish (\> 5 years) were caught only in the Bolivian and Peruvian stretches, indicating that after migrating upstream to reproduce, adults remain in the headwaters of the Madeira River. Comparing with previous publications, B. rousseauxii had a slower growth and 20 cm lower maximum standard length in the Madeira River than in the Amazon River. This study provides a baseline for future evaluation of changes in population dynamics of the species following dams closure.

Palabras clave:\ Amazon; Biannual rings; Goliath catfish; Life cycle; Otolith

}, doi = {10.1590/1982-0224-20170130}, author = {Hauser, Marilia and Doria, C R C and Melo, L and Santos, A and Ayala, D and Nogueira, L and Amadio, S. A. and Fabr{\'e}, N and Torrente-Vilara, Gislene and Garc{\'\i}a V{\'a}squez, A and Renno, Jean-Francois and Carvajal-Vallejos, F M and Alonso, J-C and N{\'u}{\~n}ez-Rodr{\'\i}guez, Jes{\'u}s and Fabrice Duponchelle} } @article {4796, title = {DNA Metabarcoding of Amazonian Ichthyoplankton Swarms}, journal = {PLoSOne}, volume = {Jan 17;12}, year = {2017}, month = {01/2017}, pages = {:e0170009}, abstract = {

Tropical rainforests harbor extraordinary biodiversity. The Amazon basin is thought to hold 30\% of all river fish species in the world. Information about the ecology, reproduction, and recruitment of most species is still lacking, thus hampering fisheries management and successful conservation strategies. One of the key understudied issues in the study of population dynamics is recruitment. Fish larval ecology in tropical biomes is still in its infancy owing to identification difficulties. Molecular techniques are very promising tools for the identification of larvae at the species level. However, one of their limits is obtaining individual sequences with large samples of larvae. To facilitate this task, we developed a new method based on the massive parallel sequencing capability of next generation sequencing (NGS) coupled with hybridization capture. We focused on the mitochondrial marker cytochrome oxidase I (COI). The results obtained using the new method were compared with individual larval sequencing. We validated the ability of the method to identify Amazonian catfish larvae at the species level and to estimate the relative abundance of species in batches of larvae. Finally, we applied the method and provided evidence for strong temporal variation in reproductive activity of catfish species in the Ucayal{\'\i} River in the Peruvian Amazon. This new time and cost effective method enables the acquisition of large datasets, paving the way for a finer understanding of reproductive dynamics and recruitment patterns of tropical fish species, with major implications for fisheries management and conservation.

}, author = {Maggia, M. E. and Vigouroux, Y. and Renno, Jean-Francois and Fabrice Duponchelle and Desmarais, E and Jesus Nu{\~n}ez-Rodriguez and Garc{\'\i}a-D{\'a}vila, C and Carvajal-Vallejos, F M and Paradis, Emmanuel and Martin, Jean-Fran{\c c}ois and Mariac, C{\'e}dric} } @article {3290, title = {Fish-AMAZBOL: a database on freshwater fishes of the Bolivian Amazon}, journal = {Hyrobiologia}, volume = {732}, year = {2014}, month = {07/2014}, pages = {pp. 19-27}, abstract = {The Bolivian part of the Amazon Basin contains a mega diverse and well-preserved fish fauna. Since the last decade, this fish fauna has received an increasing attention from scientists and the national authorities as fishes represent one of the most important sources of proteins for local human communities. However, this fish fauna still remains poorly documented. Here, we present a database for fishes from the Bolivian Amazon. To build the database, we conducted an extensive literature survey of native and non-native (exotic) fishes inhabiting all major sub-drainages of the Bolivian Amazon. The database, named Fish-AMAZBOL, contains species lists for 13 Amazonian hydrological units, covering 100\% of the Bolivian Amazon and approximately 65\% (722,137 km2) of the all territory. Fish-AMAZBOL includes 802 valid species, 12 of them being non-native, that have been checked for systematic reliability and consistency. To put this number in perspective, this represents around 14\% of the all Neotropical ichthyofauna and around 6\% of all strictly freshwater fishes inhabiting the planet. This database is currently the most comprehensive database of native and non-native fish species richness available so far for the Bolivian Amazon.}, keywords = {Amazon River basin, Bolivia, Checklist, Freshwater fishes, Madera River, South America}, doi = {10.1007/s10750-014-1841-5}, url = {http://link.springer.com/article/10.1007/s10750-014-1841-5}, author = {Carvajal-Vallejos, F M and R{\'e}my Bigorne and Zeballos Fernandez, Am{\'e}rica J. and Sarmiento, Jaime and Barrera Soraya and Yunoki, T and Marc Pouilly and Zubieta Jos{\'e} and De La Barra, Evans and Michel J{\'e}gu and Maldonado, Mabel and Van Damme, Paul and C{\'e}spedes, Ricardo and Thierry Oberdorff} } @article {3445, title = {Genetic structure in the Amazonian catfish Brachyplatystoma rousseauxii: influence of life history strategies.}, journal = {Genetica}, volume = {142}, year = {2014}, month = {2014 Aug}, pages = {323-36}, abstract = {

The Dorado or Plateado (Gilded catfish) Brachyplatystoma rousseauxii (Pimelodidae, Siluriformes) is a commercially valuable migratory catfish performing the largest migration in freshwaters: from the Amazonian headwaters in the Andean foothills (breeding area) to the Amazon estuary (nursery area). In spite of its importance to inform management and conservation efforts, the genetic variability of this species has only recently begun to be studied. The aim of the present work was to determine the population genetic structure of B. rousseauxii in two regions: the Upper Madera Basin (five locations in the Bolivian Amazon) and the Western Amazon Basin (one regional sample from the Uyucal{\'\i}-Napo-Mara{\~n}on-Amazon basin, Peru). Length polymorphism at nine microsatellite loci (284 individuals) was used to determine genetic variability and to identify the most probable panmictic units (using a Bayesian approach), after a significant departure from Hardy-Weinberg equilibrium was observed in the overall dataset (Western Amazon\ +\ Upper Madera). Bayesian analyses revealed at least three clusters in admixture in the five locations sampled in the Bolivian Amazon, whereas only two of these clusters were observed in the Western Amazon. Considering the migratory behaviour of B. rousseauxii, different life history strategies, including homing, are proposed to explain the cluster distribution. Our results are discussed in the light of the numerous threats to the species survival in the Madera basin, in particular dam and reservoir construction.

}, issn = {1573-6857}, doi = {10.1007/s10709-014-9777-2}, author = {Carvajal-Vallejos, F M and Fabrice Duponchelle and Desmarais, E and Cerqueira, F and Sophie Qu{\'e}rouil and Jesus Nu{\~n}ez-Rodriguez and Garc{\'\i}a, C and Renno, J-F} } @book {3281, title = {Peces de Bolivia/Bolivian Fishes}, year = {2014}, pages = {211 pages}, publisher = {Plural editores}, organization = {Plural editores}, address = {La Paz, Bolivia}, abstract = {

Desde la última década, el creciente interés por parte de científicos y autoridades nacionales ha dado lugar a avances considerables en el conocimiento de los peces de Bolivia, llegando a una lista de más de 900 especies. Esta riqueza representa el 7 \% de todas las especies de agua dulce descritas en el mundo, haciendo de Bolivia uno de los países con mayor diversidad de peces.

Este libro, primero de su categoría en Bolivia, presenta una compilación de informaciones sobre una centena de especies de peces, entre las más conocidas o notables, incluyendo fotos, informaciones sobre sus rasgos biológicos y mapas de distribución.

Está dirigido a quienes quieren descubrir o conocer más sobre los peces de Bolivia y la biodiversidad en general. Esperamos que el presente trabajo resalte la necesidad de preservar la singularidad que representan las aguas bolivianas con su diversa fauna, y que ayude al pueblo boliviano a conocer mejor y valorar su patrimonio natural.

Since the last decade, an increasing attention from scientists and national authorities has led to significant advances in our knowledge of Bolivian fishes. To date, more than 900 fish species are known to inhabit Bolivian waters. This richness represents 7 \% of all freshwater fish species described worldwide, making Bolivia one of the most species rich countries.

This book, first of its kind for Bolivia, presents a compilation of information on the most well-known species, including pictures, details on life history traits and maps of distribution. We hope this book will participate in demonstrating the need to preserve the uniqueness that represents the Bolivian waters and their diverse fish fauna, and helping Bolivian people in discovering their natural heritage.

}, issn = {9789995415747}, author = {Sarmiento, Jaime and R{\'e}my Bigorne and Carvajal-Vallejos, F M and Maldonado, Mabel and Leciak, Elisabeth and Thierry Oberdorff} }