@article {7100, title = {Unmasking continental natal homing in goliath catfish from the upper Amazon}, journal = {Freshwater Biology}, volume = {65}, year = {2020}, month = {Jul-02-2020}, pages = {325 - 336}, issn = {0046-5070}, doi = {10.1111/fwb.v65.210.1111/fwb.13427}, url = {https://onlinelibrary.wiley.com/toc/13652427/65/2}, author = {Hauser, Marilia and Duponchelle, Fabrice and Hermann, Theodore W. and Limburg, Karin E. and Castello, Leandro and Stewart, Donald J. and Torrente-Vilara, Gislene and Garc{\'\i}a-Vasquez, Aurea and Garc{\'\i}a-D{\'a}vila, Carmen and Marc Pouilly and Pecheyran, Christophe and Ponzevera, Emmanuel and Renno, Jean-Fran{\c c}ois and Moret, Arthur S. and Doria, Carolina R. C.} } @article {7102, title = {Variacion de la amplitud del nicho isotopico de tres especies de peces en un gradiente de disponibilidad de recursos}, journal = {Ecologia en Bolivia}, volume = {55}, year = {2020}, pages = {6{\textendash}15}, author = {Echeverr{\'\i}a, Aldo and Marc Pouilly and Rejas, Danny} } @article {7104, title = {Commercial traceability of Arapaima spp. fisheries in the Amazon basin: can biogeochemical tags be useful?}, year = {2019}, author = {Santos, Roberto and Hauser, Marilia and Duponchelle, Fabrice and Carvajal, Fernando and Pecheyran, Christophe and B{\'e}rail, Sylvain and Marc Pouilly and Pereira, Luciana} } @article {6107, title = {Seasonal oxygen isotope variations in freshwater bivalve shells as recorders of Amazonian rivers hydrogeochemistry}, journal = {Isotopes in Environmental and Health Studies}, year = {2019}, pages = {1-15}, type = {Journal Article}, abstract = {

Freshwater bivalve shell oxygen isotope values (δ18OS) may act as a recorder of river δ18O variations that can then be interpreted in terms of hydrology (e.g. precipitation{\textendash}evaporation balance, precipitation and river discharge patterns). We investigated the potential of this proxy measured across the hinge of South American unionid shells: Anodontites elongatus collected in Peru and A. trapesialis in Brazil. The isotopic signatures were reproducible between individuals of the same species. A. trapesialis clearly showed a strong δ18OS cyclicity in accordance with its growth patterns while A. elongatus presented less clear δ18OS with lower amplitude. We confirm that the deposition of successive growth lines and increments is annual, with growth line corresponding to the wet season. Also, we suggest that low amplitude of δ18OS in the A. elongatus shells indicates a habitat close to the river while large amplitude of δ18OS cycles observed in A. trapesialis shells would reflect a floodplain lake habitat, seasonally disconnected from the river and thus subjected to higher seasonal fluctuations in water δ18O. Considering these promising first results, future studies could be directed towards the use of fossil shells to reconstruct the past and present hydrological and geochemical conditions of the Amazon.

}, keywords = {Amazon basin, freshwater bivalve shells, hydroclimate, isotope ecology, isotope hydrology, oxygen isotopes}, issn = {1025-6016 1477-2639}, doi = {10.1080/10256016.2019.1666120}, url = {https://hal.archives-ouvertes.fr/hal-02314885v1}, author = {Gaillard, Blandine and Claire E. Lazareth and Lestrelin, Hugo and Dufour, Elise and Santos, Roberto V. and Carlos E.C. Freitas and Marc Pouilly} } @article {7036, title = {Shedding light on the migratory patterns of the Amazonian goliath catfish, Brachyplatystoma platynemum , using otolith 87 Sr/ 86 Sr analyses}, journal = {Aquatic Conservation: Marine and Freshwater Ecosystems}, volume = {29}, year = {2019}, month = {Aug-03-2020}, pages = {397 - 408}, issn = {1052-7613}, doi = {10.1002/aqc.v29.310.1002/aqc.3046}, url = {https://onlinelibrary.wiley.com/toc/10990755/29/3}, author = {Hauser, Marilia and Doria, Carolina R.C. and Santos, Roberto V. and Garc{\'\i}a-Vasquez, Aurea and Marc Pouilly and Pecheyran, Christophe and Ponzevera, Emmanuel and Torrente-Vilara, Gislene and B{\'e}rail, Sylvain and Panfili, Jacques and Darnaude, Audrey and Renno, Jean-Fran{\c c}ois and Garc{\'\i}a-D{\'a}vila, Carmen and Jesus Nu{\~n}ez-Rodriguez and Ferraton, Franck and Vargas, Gladys and Duponchelle, Fabrice} } @article {7103, title = {Shedding light on the migratory patterns of the Amazonian goliath catfish, Brachyplatystoma platynemum, using otolith 87Sr/86Sr analyses}, journal = {Aquatic Conservation: Marine and Freshwater Ecosystems}, volume = {29}, year = {2019}, pages = {397{\textendash}408}, doi = {doi.org/10.1002/aqc.3046}, url = {https://onlinelibrary.wiley.com/doi/full/10.1002/aqc.3046}, author = {Hauser, Marilia and Doria, Carolina RC and Santos, Roberto V and Garc{\'\i}a-Vasquez, Aurea and Marc Pouilly and Pecheyran, Christophe and Ponzevera, Emmanuel and Torrente-Vilara, Gislene and B{\'e}rail, Sylvain and Panfili, Jacques and others} } @article {5922, title = {Trophic ecology of speckled peacock bass Cichla temensis Humboldt 1821 in the middle Negro River, Amazon, Brazil}, journal = {Ecology of Freshwater Fish}, volume = {27}, year = {2018}, pages = {1076{\textendash}1086}, doi = {10.1111/eff.12416}, url = {https://doi.org/10.1111/eff.12416}, author = {Jamerson Aguiar-Santos and Pieter A. P. deHart and Marc Pouilly and Carlos E.C. Freitas and Fl{\'a}via K. Siqueira-Souza} } @article {5923, title = {The unique functioning of a pre-Columbian Amazonian floodplain fishery}, journal = {Scientific Reports}, volume = {8}, year = {2018}, doi = {10.1038/s41598-018-24454-4}, url = {https://doi.org/10.1038/s41598-018-24454-4}, author = {Rumsa{\"\i}s Blatrix and Bruno Roux and Philippe B{\'e}arez and Gabriela Prestes-Carneiro and Marcelo Amaya and Jose Luis Aramayo and Leonor Rodrigues and Umberto Lombardo and Jose Iriarte and Jonas Gregorio de Souza and Mark Robinson and Cyril Bernard and Marc Pouilly and M{\'e}lisse Dur{\'e}cu and Carl F. Huchzermeyer and Mashuta Kalebe and Alex Ovando and Doyle McKey} } @article {4677, title = {Present-day African analogue of a pre-European Amazonian floodplain fishery shows convergence in cultural niche construction}, journal = {Proceedings of the National Academy of Sciences}, year = {2016}, abstract = {

Erickson [Erickson CL (2000) Nature 408 (6809):190{\textendash}193] interpreted features in seasonal floodplains in Bolivia{\textquoteright}s Beni savannas as vestiges of pre-European earthen fish weirs, postulating that they supported a productive, sustainable fishery that warranted cooperation in the construction and maintenance of perennial structures. His inferences were bold, because no close ethnographic analogues were known. A similar present-day Zambian fishery, documented here, appears strikingly convergent. The Zambian fishery supports Erickson{\textquoteright}s key inferences about the pre-European fishery: It allows sustained high harvest levels; weir construction and operation require cooperation; and weirs are inherited across generations. However, our comparison suggests that the pre-European system may not have entailed intensive management, as Erickson postulated. The Zambian fishery{\textquoteright}s sustainability is based on exploiting an assemblage dominated by species with life histories combining high fecundity, multiple reproductive cycles, and seasonal use of floodplains. As water rises, adults migrate from permanent watercourses into floodplains, through gaps in weirs, to feed and spawn. Juveniles grow and then migrate back to dry-season refuges as water falls. At that moment fishermen set traps in the gaps, harvesting large numbers of fish, mostly juveniles. In nature, most juveniles die during the first dry season, so that their harvest just before migration has limited impact on future populations, facilitating sustainability and the adoption of a fishery based on inherited perennial structures. South American floodplain fishes with similar life histories were the likely targets of the pre-European fishery. Convergence in floodplain fish strategies in these two regions in turn drove convergence in cultural niche construction.

}, doi = {10.1073/pnas.1613169114}, url = {http://www.pnas.org/content/early/2016/12/09/1613169114.abstract}, author = {McKey, Doyle B. and Dur{\'e}cu, M{\'e}lisse and Marc Pouilly and Bearez, Philippe and Ovando, Alex and Kalebe, Mashuta and Carl F. Huchzermeyer} } @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 {4215, title = {Which factors determine the altitudinal distribution of tropical Andean riverine fishes?}, journal = {Revista de Biologia Tropical}, volume = {64}, year = {2016}, month = {03/2016}, pages = {173-192}, abstract = {

Abstract: Which factors determine the altitudinal distribution of tropical Andean riverine fishes?

Altitudinal gradients represent an appropriate system to assess whether there is a relationship between richness patterns, environmental variables, and the ecological processes that determine the species type and number inhabiting a given area. In mountain streams freshwater fishes, the most prevalent relationship is a monotonic decrease in species richness with elevation. The objective of this study was to evaluate four hypotheses that can explain the negative relationship between local fish species richness and altitude, 1) the hypothesis of decreasing energy availability, 2) the hypothesis of increasing climate severity, 3) the hypothesis of habitat diversity, and 4) the hypothesis of isolation by physical severity of the environment. Fish and macro-invertebrates were col- lected following standard methods from 83 sites (between 200-4 000 meters) of two river basins in the Bolivian Amazon. The first hypothesis was tested by analyzing relationships between the density of macro-invertebrates, the richness of invertivorous fish species and altitude; while the second and third hypotheses were assessed by a multiple regression analysis (GLM) between fish species richness and several local and regional factors. Besides, assemblage dissimilarity between sites along the altitudinal gradient was analyzed using βsim and βness indices. Fish richness decreases linearly with increasing altitude. The density of macro-invertebrates tends to increase at higher altitudes, contrary to invertivorous fish species richness, suggesting that energy availability is not a limiting factor for fish species colonization. The GLM explained 86 \% of the variation in fish species richness, with a significant contribution of water temperature, maximum slope in the river mainstem, and stream width. There is a higher species turnover (βsim) between sites at low elevation. Inversely, βness shows higher values in the upper parts, corresponding to change in assemblages mainly due to species loss. Taken together, these results suggest that climatic and physical severities create strong barriers to colonization, further explaining the decrease in fish richness along the altitudinal gradient.

}, issn = {ISSN-0034-7744}, author = {E. De La Barra and J. Zubieta and G. Aguilera and M. Maldonado and Marc Pouilly and Thierry Oberdorff} } @article {4679, title = {Trophic opportunism of central Amazon floodplain fish}, journal = {Freshwater Biology}, volume = {60}, year = {2015}, pages = {1659{\textendash}1670}, author = {Jean-Michel Mortillaro and Marc Pouilly and Wach, M and Carlos E.C. Freitas and Gwena{\"e}l Abril and Tarik Meziane} } @article {4678, title = {Which factors determine the altitudinal distribution of tropical Andean riverine fishes?}, journal = {Revista de Biolog{{\'\i}a Tropical/International Journal of Tropical Biology and Conservation}, volume = {64}, year = {2015}, pages = {157{\textendash}176}, author = {De La Barra, Evans and Zubieta, Jos{\'e} and Aguilera, Gast{\'o}n and Maldonado, Mabel and Marc Pouilly and Oberdorff, Thierry} } @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 {3326, title = {Geographical origin of Amazonian freshwater fishes fingerprinted by $^{8}$$^{7}$Sr/$^{8}$$^{6}$Sr ratios on fish otoliths and scales.}, journal = {Environ Sci Technol}, volume = {48}, year = {2014}, month = {2014 Aug 19}, pages = {8980-7}, abstract = {

Calcified structures such as otoliths and scales grow continuously throughout the lifetime of fishes. The geochemical variations present in these biogenic structures are particularly relevant for studying fish migration and origin. In order to investigate the potential of the (87)Sr/(86)Sr ratio as a precise biogeochemical tag in Amazonian fishes, we compared this ratio between the water and fish otoliths and scales of two commercial fish species, Hoplias malabaricus and Schizodon fasciatus, from three major drainage basins of the Amazon: the Madeira, Solim{\~o}es, and Tapaj{\'o}s rivers, displaying contrasted (87)Sr/(86)Sr ratios. A comparison of the (87)Sr/(86)Sr ratios between the otoliths and scales of the same individuals revealed similar values and were very close to the Sr isotopic composition of the local river where they were captured. This indicates, first, the absence of Sr isotopic fractionation during biological uptake and incorporation into calcified structures and, second, that scales may represent an interesting nonlethal alternative for (87)Sr/(86)Sr ratio measurements in comparison to otoliths. Considering the wide range of (87)Sr/(86)Sr variations that exist across Amazonian rivers, we used variations of (87)Sr/(86)Sr to discriminate fish origin at the basin level, as well as at the sub-basin level between the river and savannah lakes of the Beni River (Madeira basin).

}, issn = {1520-5851}, doi = {10.1021/es500071w}, author = {Marc Pouilly and Point, David and Sondag, Francis and Henry, Manuel and Santos, Roberto V} }