The Fishes of the Amazon: Distribution and Biogeographical Patterns, with a Comprehensive List of Species

Dagosta, Fernando César Paiva; Pinna, Mário de

doi:10.1206/0003-0090.431.1.1

Cited by 215 publications

(255 citation statements)

References 258 publications

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“…The sampled region is composed by a complex fluvial system river system with channels, holes, paranas and lakes that integrate both black and clearwater environments such as igapós and campinaranas, as well as a vast floodplain area enriched by alluvial deposits of whitewater rivers such as the Amazonas and Madeira rivers (Cavallini 2014). The Madeira river drains one-third of the Amazonian lowlands and is the richest tributary of Amazonas river (Dagosta & Pinna 2019). Therefore, the confluence of Madeira and Amazonas rivers just upstream the studied area and the proximity to Urubu and Uatumã rivers may explain the high number of fish species recorded in this study, due the hydrological connectivity and biological exchanges among these lowland aquatic environments, mainly in high waters.…”

Section: Discussionmentioning

confidence: 72%

“…The associated channels and wetlands support high values of primary and secondary productivity (Junk 2013). This complex landscape harbors the highest diversity of freshwater fishes in the world, with more than 2,700 species currently considered valid (Dagosta & Pinna 2019). During the rain forest annual flooded pulse, the combination of flat terrain and variable rivers and streams discharge allows the presence of large areas of wetlands and floodplain forest (Junk 1970), resulting in a dynamic complex of seasonally flooded areas with marked ecological importance (Junk et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Smaller species, despite their high contribution of biomass and richness are subsampled, resulting in lack of knowledge to be filled with future studies (Barletta et al 2010). Still, some rivers, like Urubu, remains poorly understood in terms of ichthyofauna composition, with few reports of species occurrence in the basin, rare cases of endemism and little information about species distribution (Dagosta & Pinna 2019). Thus, the aim of this investigation is to present an inventory of the ichthyofauna from watercourses from Urubu and Amazonas drainages near Itacoatiara.…”

Section: Introductionmentioning

confidence: 99%

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Ichthyofauna from tributaries of Urubu and Amazonas rivers, Amazonas State, Brazil

et al. 2020

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The Amazonas River basin comprises the world's highest fish species diversity. Anthropogenic interferences in aquatic environments represent a pressure over the maintenance of ecological stability and biodiversity. We inventoried the ichthyofauna of 13 disturbed/modified tributaries of Urubu and Amazonas rivers in the region of the middle Amazon River, between June 2018 and March 2019. A total of 164 species were captured, represented by 11 orders, 37 families and 96 genera. Characiformes was the richest order, followed by Cichliformes and Siluriformes. The most representative families in number of species were Cichlidae, Serrasalmidae, and Characidae. Hemigrammus levis was the most abundant species, and Acarichthys heckelii the most common, registered in all sampled sites. In the present study, species with economic interest were collected, as well as many species recently described and one still waiting for formal description, identified provisionally as Moenkhausia aff. colletii. Therefore, the high fish diversity registered, even in disturbed environments in Middle Amazonas River, denotes the makeable ecological importance of this region for fishes resources and supports the necessity of evaluation of other aquatic environments in the region, as well as the potential impacts on composition, maintenance, and survival of ichthyofauna in environments directly affected by human activities.Resumo: A bacia do rio Amazonas compreende a maior diversidade de espécies de peixes do mundo. Interferências antropogênicas em ambientes aquáticos representam uma pressão sobre a manutenção da estabilidade ecológica e da biodiversidade. Inventariamos a ictiofauna de 13 afluentes perturbados/modificados dos rios Urubu e Amazonas na região do médio do rio Amazonas, entre junho de 2018 e março de 2019. Foram capturadas 164 espécies no total, representadas por 11 ordens, 37 famílias e 96 gêneros. Characiformes foi a ordem mais rica, seguida por Cichliformes e Siluriformes. As famílias mais representativas em número de espécies foram Cichlidae, Serrasalmidae e Characidae. Hemigrammus levis foi a espécie mais abundante e Acarichthys heckelii a mais comum, registrada em todos os locais amostrados. No presente estudo foram coletadas espécies de interesse econômico, bem como muitas espécies recentemente descritas e uma ainda aguardando descrição formal, identificada provisoriamente como Moenkhausia aff. colletii. Portanto, a alta diversidade de peixes registrada, mesmo em ambientes perturbados no médio rio Amazonas, denota a importância ecológica marcante dessa região para os recursos pesqueiros e suporta a necessidade de avaliação de outros ambientes aquáticos da região, bem como os possíveis impactos na composição, manutenção e sobrevivência da ictiofauna em ambientes diretamente afetados pelas atividades humanas. Palavras-chave: Diversidade da ictiofauna, Impactos ambientais, Inventário, Peixes amazônicos. Pereira, RS. et al.

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Section: Discussionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ichthyofauna from tributaries of Urubu and Amazonas rivers, Amazonas State, Brazil

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“…The Xingu River basin encompasses the fourth largest catchment area of the Amazon. It is known for its high fish biodiversity, with an estimated 600 species, 10% of them endemic to this river basin with many remaining to be described [11][12][13][14]. Several ethnic groups inhabit a mosaic of indigenous lands in a large part of the basin, contributing greatly to a slower rate of deforestation than is seen in unprotected Xingu basin headwaters [15][16][17].…”

Section: Discussionmentioning

confidence: 99%

A New Multi-Temporal Forest Cover Classification for the Xingu River Basin, Brazil

Kalácska

Lucanus

Sousa

et al. 2019

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We describe a new multi-temporal classification for forest/non-forest classes for a 1.3 million square kilometer area encompassing the Xingu River basin, Brazil. This region is well known for its exceptionally high biodiversity, especially in terms of the ichthyofauna, with approximately 600 known species, 10% of which are endemic to the river basin. Global and regional scale datasets do not adequately capture the rapidly changing land cover in this region. Accurate forest cover and forest cover change data are important for understanding the anthropogenic pressures on the aquatic ecosystems. We developed the new classifications with a minimum mapping unit of 0.8 ha from cloud free mosaics of Landsat TM5 and OLI 8 imagery in Google Earth Engine using a classification and regression tree (CART) aided by field photographs for the selection of training and validation points.

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“…This compilation, covering a time span of almost two hundred years (1834-2019), currently comprises 2,406 valid native freshwater fish species recorded from 590 different sources representing more than 235,064 occurrence records (232,936 georeferenced and 2,128 non-georeferenced) and 21,500 sampled localities (hereafter called sampling sites). Two parallel compilation efforts on the distribution of freshwater fish species in the Amazon Basin have been recently released 17,18 . The field guide book from van der Sleen and Albert 17 delivers a general view of the current knowledge of fish ecology and distribution maps at the genus level only.…”

Section: Background and Summarymentioning

confidence: 99%

A database of freshwater fish species of the Amazon Basin

et al. 2020

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the amazon Basin is an unquestionable biodiversity hotspot, containing the highest freshwater biodiversity on earth and facing off a recent increase in anthropogenic threats. The current knowledge on the spatial distribution of the freshwater fish species is greatly deficient in this basin, preventing a comprehensive understanding of this hyper-diverse ecosystem as a whole. Filling this gap was the priority of a transnational collaborative project, i.e. the AmazonFish project -https://www.amazon-fish.com/. Relying on the outputs of this project, we provide the most complete fish species distribution records covering the whole Amazon drainage. The database, including 2,406 validated freshwater native fish species, 232,936 georeferenced records, results from an extensive survey of species distribution including 590 different sources (e.g. published articles, grey literature, online biodiversity databases and scientific collections from museums and universities worldwide) and field expeditions conducted during the project. This database, delivered at both georeferenced localities (21,500 localities) and sub-drainages grains (144 units), represents a highly valuable source of information for further studies on freshwater fish biodiversity, biogeography and conservation.Scientific Data | (2020) 7:96 | https://doi.collections from Peru 25,26 and by initiating sampling campaigns in detected gaps in Colombia, Peru and Brazil. All these spatial gaps in the database will also be prioritized in future updates through literature and web-based sources checking. Researchers holding fish distribution data from any of the current gaps or under-sampled areas (Fig. 2) and that wish to share these data are welcome to join the project. This information will be included with the complete source, after validation, in the next update of the database.

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The Fishes of the Amazon: Distribution and Biogeographical Patterns, with a Comprehensive List of Species

Abstract: Introduction. Material and Methods. Results and Discussion.

Cited by 215 publications

References 258 publications

Ichthyofauna from tributaries of Urubu and Amazonas rivers, Amazonas State, Brazil

Ichthyofauna from tributaries of Urubu and Amazonas rivers, Amazonas State, Brazil

A New Multi-Temporal Forest Cover Classification for the Xingu River Basin, Brazil

A database of freshwater fish species of the Amazon Basin

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