@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 {5632, title = {Metabarcoding by Capture using a Single COI Probe (MCSP) to identify and quantify fish species in plankton swarms}, journal = {PLoS ONE }, volume = {13}, year = {2018}, pages = {e0202976}, abstract = {

The ability to determine the composition and relative frequencies of fish species in large ichthyoplankton swarms could have extremely important ecological applications However, this task is currently hampered by methodological limitations. We proposed a new method for Amazonian species based on hybridization capture of the COI gene DNA from a distant species (Danio rerio), absent from our study area (the Amazon basin). The COI sequence of this species is approximately equidistant from all COI of Amazonian species available. By using this sequence as probe we successfully facilitated the simultaneous identification of fish larvae belonging to the order Siluriformes and to the Characiformes represented in our ichthyoplankton samples. Species relative frequencies, estimated by the number of reads, showed almost perfect correlations with true frequencies estimated by a Sanger approach, allowing the development of a quantitative approach. We also proposed a further improvement to a previous protocol, which enables lowering the sequencing effort by 40 times. This new Metabarcoding by Capture using a Single Probe (MCSP) methodology could have important implications for ecology, fisheries management and conservation in fish biodiversity hotspots worldwide. Our approach could easily be extended to other plant and animal taxa.

}, doi = {https://doi.org/10.1371/journal.pone.0202976}, url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0202976}, author = {Mariac, C{\'e}dric and Vigouroux, Y. and Fabrice Duponchelle and Garc{\'\i}a-D{\'a}vila, C and Nu{\~n}ez L. and Desmarais, E and Renno, Jean-Francois} } @book {5650, title = {Peces de consumo de la Amazon{\'\i}a Peruana}, year = {2018}, pages = {218}, edition = {Instituto de Investigaciones de la Amazon{\'\i}a Peruana (IIAP), Iquitos, Per{\'u}}, author = {Garc{\'\i}a-D{\'a}vila, C and Sanchez, H. and Flores, M and Mejia, J. and Angulo, C. and Castro-Ruiz, D. and Estivals, G. and Garcia, Aurea and Vargas, G. and Nolorbe, C. and Jesus Nu{\~n}ez-Rodriguez and Mariac, C{\'e}dric and Fabrice Duponchelle and Renno, Jean-Francois} } @article {7034, title = {Use of an acoustic telemetry array for fine scale fish behaviour assessment of captive Paiche, Arapaima gigas, breeders}, journal = {Aquaculture Research}, volume = {49}, year = {2018}, month = {Jan-06-2018}, pages = {2296 - 2304}, doi = {10.1111/are.2018.49.issue-610.1111/are.13692}, url = {http://doi.wiley.com/10.1111/are.2018.49.issue-6}, author = {Jesus Nu{\~n}ez-Rodriguez and Vela D{\'\i}az, Antonia and Bazan-Albitez, Roger and Rebaza Alfaro, Carmela and Koua, Daniel and N{\'u}{\~n}ez, Lucie and Testi, Baptiste and Renno, Jean-Francois and Duponchelle, Fabrice and Pella, Herv{\'e}} } @article {5628, title = {Use of an acoustic telemetry array for fine scale fish behaviour assessment of captive Paiche, Arapaima gigas, breeders}, journal = {Aquaculture Research }, volume = {49}, year = {2018}, pages = {2296-2304}, abstract = {

As\ Arapaima gigas\ is one of the most valuable species for the growing production of Amazonian aquaculture, knowledge of its reproductive behaviour and its application to increase reproduction success in captivity is of great importance as no hormonal spawning induction technique exists for this species. An acoustic positioning system (LOTEK Inc.) was used to observe the interactions of adult fish to better understand the formation of mating pairs. Fish were placed in a 4,500\ m2\ aquaculture pond over a 6-month period in the IIAP field station of Pucallpa, Per{\'u}. This paper describes the methodological protocols used to set up and test the hydrophone array and presents the methodology used for the analysis of the huge amount of collected data. This methodology is illustrated by the analysis of a 6-day period for a mating pair that showed a spawning event. The results indicated that male and female occupied mostly one preferential area in one pond edge where the nesting area is located. Different activity patterns were observed during the spawning event, with male and female being closer during the spawning day. The results also showed that male travelled less distance than female during the studied period. Finally these results demonstrated the suitability of such equipment to monitor fish interactions at fine spatial (sub meter) and temporal (5\ s) scales in confined environments like aquaculture ponds.

}, doi = {doi.org/10.1111/are.13692}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/are.13692}, author = {Jesus Nu{\~n}ez-Rodriguez and Vela Diaz, A. and Bazan-Albitez, R and Koua, D and Nu{\~n}ez L. and Testi, B. and Renno, Jean-Francois and Duponchelle, F and Pella, H} } @article {5033, title = {Description of a new maternal larvophilic mouth-brooding cichlid species, Apistogramma megastoma sp. n. (Teleostei: Perciformes: Geophaginae), from Loreto, Peru}, journal = {Vertebrate Zoology }, volume = {67}, year = {2017}, author = {R{\"o}mer, Uwe and R{\"o}mer, CI and Estivals, G and Vela Diaz, A. and Fabrice Duponchelle and Garcia Davila, C and Hahn, I and Renno, Jean-Francois} } @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 {5034, title = {Tempo and Rates of diversification in the South American Cichlid Genus Apistogramma (Teleostei: Perciformes: Cichlidae)}, journal = {PLoS ONE }, volume = {in press}, year = {2017}, author = {Tougard, C and Garcia Davila, C and R{\"o}mer, U and Fabrice Duponchelle and Cerqueira, F and Guinand, B and Angulo Ch{\'a}vez, C and Salas, V and Sophie Qu{\'e}rouil and Sirvas Cornero, S and Renno, Jean-Francois} } @article {4280, title = {Trans-Amazonian natal homing in giant catfish}, journal = {Journal of Applied Ecology}, volume = {53}, year = {2016}, pages = {1511-1520}, abstract = {

1.Knowledge of fish migration is a prerequisite to sustainable fisheries management and preservation, especially in large international river basins. In particular, understanding whether a migratory lifestyle is compulsory or facultative, and whether adults home to their natal geographic area is paramount to fully appraise disruptions of longitudinal connectivity resulting from damming.2.In the Amazon, the large migratory catfishes of the Brachyplatystoma genus are apex predators of considerable interest for fisheries. They are believed to use the entire length of the basin to perform their life cycle, with hypothesized homing behaviours. Here we tested these hypotheses, using the emblematic B. rousseauxii as a model species.3.We sampled adults close to major breeding areas in the Amazon basin (upper Madeira and upper Amazonas) and assessed their lifetime movements by measuring variations in 87Sr/86Sr along transverse sections of their otoliths (ear stones) using laser ablation multicollector mass spectrometry (LA-MC-ICPMS).4.We demonstrate that larvae migrate downstream from the Andean piedmont to the lower Amazon, where they grow over a protracted period before migrating upstream as adults. Contrary to prevailing inferences, not all fish spend their nursery stages in the Amazon estuary. By contrast, the passage in the lower or central Amazon seems an obligate part of the life cycle. We further evidence that most adults home to their natal geographic area within the Madeira sub-basin. Such long-distance natal homing is exceptional in purely freshwater fishes.5.Synthesis and applications. By using otolith microchemistry, we were able to demonstrate a seemingly compulsory basin-wide migratory life cycle of large Amazonian catfishes. This makes them the organisms performing the longest migrations (\>8000 km) in fresh waters. This exceptional life history is already jeopardized by two dams recently built in the Madeira River, which block a major migration route and access to a substantial part of their spawning grounds. Major impacts can be anticipated from the current and forthcoming hydroelectric development in the Amazon basin, not only on the populations and fisheries of this apex predator, but also on Amazonian food webs through trophic cascades.This article is protected by copyright. All rights reserved.

}, keywords = {87Sr/86Sr ratios, Amazon, anthropogenic activities, Brachyplatystoma spp, freshwater fish, giant catfish, hydroelectric dams, Migration, otoliths}, issn = {1365-2664}, doi = {10.1111/1365-2664.12665}, url = {http://dx.doi.org/10.1111/1365-2664.12665}, author = {Fabrice Duponchelle and Marc Pouilly and Pecheyran, Christophe and Hauser, Marilia and Renno, Jean-Francois and Panfili, Jacques and Darnaude, Audrey M. and Garc{\'\i}a-Vasquez, Aurea and Carvajal-Vallejos, Fernando and Carmen Garc{\'\i}a-D{\'a}vila and Doria, Carolina and B{\'e}rail, Sylvain and Donard, Ariane and Sondag, Francis and Santos, Roberto V. and Jesus Nu{\~n}ez-Rodriguez and Point, David and Labonne, Maylis and Baras, Etienne} } @article {4398, title = {Movement patterns and home range of wild and re-stocked Arapaima gigas (Schinz, 1822) monitored by radio-telemetry in Lake Imiria, Peru}, journal = {Journal of Applied Ichthyology}, volume = {31}, year = {2015}, pages = {10{\textendash}18}, issn = {1439-0426}, doi = {10.1111/jai.12972}, url = {http://dx.doi.org/10.1111/jai.12972}, author = {Jesus Nu{\~n}ez-Rodriguez and Fabrice Duponchelle and Cotrina-Doria, M. and Renno, Jean-Francois and Ch{\'a}vez Veintemilla, C and Rebaza, C. and Deza, S. and Garc{\'\i}a-D{\'a}vila, C and Chu-Koo, F and Salvador Tello and Baras, Etienne} } @article {4552, title = {Opinion Paper: how vulnerable are Amazonian freshwater fishes to ongoing climate change?}, journal = {Journal of Applied Ichthytology}, volume = {31}, year = {2015}, pages = {4-9}, author = {Thierry Oberdorff and J{\'e}z{\'e}quel, C{\'e}line and Campero, Melina and Carvajal-Vallejos, Fernando and Cornu, Jean-Fran{\c c}ois and Dias, Murilo S and Fabrice Duponchelle and Maldonado, Mabel and H. Ortega and Renno, Jean-Francois and Pablo Tedesco} } @article {4400, title = {Re-description of Apistogramma payaminonis Kullander, 1986, with descriptions of two new cichlid species of the genus Apistogramma (Teleostei, Perciformes, Geophaginae) from northern Peru}, journal = {Vertebrate Zoology}, volume = {65}, year = {2015}, pages = {287-314}, author = {R{\"o}mer, Uwe and Soares, D. P. and Garc{\'\i}a-D{\'a}vila, C. and Fabrice Duponchelle and Renno, Jean-Francois and Hanh, I.} } @article {4399, title = {Using barcoding of larvae for investigating the breeding seasons of pimelodid catfishes from the Mara{\~n}on, Napo and Ucayali rivers in the Peruvian Amazon}, journal = {Journal of Applied Ichthyology}, volume = {31}, year = {2015}, pages = {40{\textendash}51}, issn = {1439-0426}, doi = {10.1111/jai.12987}, url = {http://dx.doi.org/10.1111/jai.12987}, author = {Garc{\'\i}a-D{\'a}vila, C. and Castro-Ruiz, Diana and Renno, Jean-Francois and Chota-Macuyama, Werner and Carvajal-Vallejos, Fernando and Sanchez, H. and Angulo, C. and Nolorbe, C. and Alvarado, J. and Estivals, G and Jesus Nu{\~n}ez-Rodriguez and Fabrice Duponchelle} }