The fish fauna of streams in the Madeira-Purus interfluvial region, Brazilian Amazon

Barros, Daniela de França; Zuanon, Jansen; Mendonça, Fernando Pereira de; Santo, Helder Mateus Viana Espírito; Galuch, André Vieira; Albernaz, Ana Luisa

doi:10.15560/11022

Cited by 20 publications

(22 citation statements)

References 17 publications

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“…Inventories of ichthyofauna for the western Amazon region are scarce. Among those that have been conducted in the rio Madeira basin, we highlight the study by Perin et al (2007), which recorded 48 fish species in an urban area of Rondônia; the study by Camargo and Giarrizzo (2007), which recorded 133 species in 23 streams and three rivers of the Marmelos Preservation Area; and the study by Barros et al (2011), which recorded 78 species in 22 streams in the Madeira-Purus interfluvial region. Despite the different sampling methodologies employed among these studies, they clearly demonstrate the great fish diversity in the rio Madeira basin, with a high percentage of species yet to be found and described.…”

Section: Resultsmentioning

confidence: 93%

The stream fish fauna from the rio Machado basin, Rondônia State, Brazil

Casatti

Pérez‐Mayorga

Carvalho

et al. 2013

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The rio Machado (also known as Ji-Paraná) is a tributary of the rio Madeira in the Amazon basin. Currently, the rio Madeira contains the greatest fish species richness of the world, with approximately 1,000 species. The present study presents the fish inventory from streams of the rio Machado basin. In total, 75 stream reaches, 80 meter-length, randomly selected, were sampled in 2011 (August to October) and 2012 (June to July). Overall, 22,875 fish in eight orders, 32 families, 89 genera, and 140 species were collected. Richness estimators indicate that almost 90% of the expected richness was registered. The great majority of specimens (52.2%) was represented by small sized piabas such as Serrapinnus aff. notomelas, Moenkhausia collettii, Serrapinnus microdon, and Hemigrammus melanochrous. Of the total richness, 25 species were restricted to 9°00’ S and 10°00’ S; among them, 14 were exclusive to the lower portion of the basin, which exhibits the larger proportion of native vegetation covering.

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Section: Resultsmentioning

confidence: 93%

The stream fish fauna from the rio Machado basin, Rondônia State, Brazil

Casatti

Pérez‐Mayorga

Carvalho

et al. 2013

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“…The fish assemblage composition in streams of Eastern Amazon followed the known pattern for Neotropical streams, as well as for Amazon streams, showing a higher Characiformes richness, followed by Siluriformes (Dias et al ., ; Barros et al ., ; Bordignon et al ., ; Datry et al ., ). The higher abundance of Ituglanis amazonicus and Pimelodella sp.…”

Section: Discussionmentioning

confidence: 98%

Effects of reduced‐impact logging on physical habitat and fish assemblages in streams of Eastern Amazonia

et al. 2016

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Summary Reduced‐impact logging (RIL) has been considered as the main activity of forestry management in the Amazon. However, little is known of the effects of RIL on the region's ecosystems or in their biodiversity, and such information would be useful to inform forest management. Accordingly, this study aimed to investigate the effects of RIL on physical habitat and fish assemblages in Eastern Amazonia streams. We predicted that changes caused by RIL affect stream habitat, leading to a loss of diversity and changes in species composition with a predominance of generalist species. We sampled 13 streams in basins dominated by native vegetation without evidence of logging activity (unlogged areas) and 23 in areas that had been logged at different times between 2001 and 2011. Stream physical habitat structure was characterized using a standardized protocol, and the abundance, richness and composition of fish assemblages were assessed. Biotic and abiotic data were compared between unlogged and logged areas, and among streams in areas with different logging years. The relationship between the stream habitat structure and fish assemblages was assessed using a distance‐based linear model using a forward procedure, followed by application of the Akaike information criterion. Variations in tree canopy cover, channel morphology, water temperature and dissolved oxygen and conductivity accounted for most of the differences in habitat characteristics between unlogged and logged areas. A total of 53 fish species was collected, belonging to 20 families and 6 orders. Fish abundances did not vary consistently between streams in unlogged areas and those that had undergone RIL, and showed minor evidence of species‐specific changes in response to logging years. Likewise, there were no obvious differences in species richness, composition and biomass between logged and unlogged sites, regardless of logging years. RIL in Eastern Amazonia is performed in compliance with technical guidelines, but this practice has resulted in changes in stream physical habitat. Nonetheless, in the headwater streams that we sampled, the effects of RIL on fish assemblages were minor.

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“…The number of species recorded (117) is one of the highest among known fish faunas in streams of the 1 st to 3 rd order in the Amazon drainage (e.g. Mendonça et al 2005; Montag et al 2008; De-Oliveira et al 2009; Dias et al 2009; Barros et al 2011). However, the richness of species should be higher and reach up to 183 species.…”

Section: Discussionmentioning

confidence: 99%

“…Most noteworthy are those aimed at surveying the ichthyofauna (e.g. De Oliveira et al 2009; Barros et al 2011; Raiol et al 2012; Pedroza et al 2012), studies with focus on ecology that have tested the influence of environmental factors on the assemblage structure (e.g. Mendonça et al 2005; Espirito-Santo et al 2008; Dias et al 2009), studies on natural history (e.g.…”

Section: Introductionmentioning

confidence: 99%

Stream ichthyofauna of the Tapajós National Forest, Pará, Brazil

Silva-Oliveira¹,

Canto²,

Ribeiro³

2016

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The fish fauna of freshwater streams in the Tapajos National Forest was surveyed and a list of species is presented. The sampling was conducted from 2012 to 2013 during the dry season. Fish were collected with dip nets and seine nets in 22 streams of 1st to 3rd order. Sampling resulted in 3035 specimens belonging to 117 species, 27 families and six orders. The most abundant species were Bryconops aff. melanurus, Hemigrammus belottii, and Hemigrammus analis. Four undescribed species were recognized, one of which is known only from the area of this study. A significant dissimilarity was observed in fish species composition among drainage systems. This is the first survey of the stream ichthyofauna in the Tapajós National Forest, and it presents relevant information for future studies and decision-making in the management and conservation of fish fauna in this conservation unit.

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The fish fauna of streams in the Madeira-Purus interfluvial region, Brazilian Amazon

Cited by 20 publications

References 17 publications

The stream fish fauna from the rio Machado basin, Rondônia State, Brazil

The stream fish fauna from the rio Machado basin, Rondônia State, Brazil

Effects of reduced‐impact logging on physical habitat and fish assemblages in streams of Eastern Amazonia

Stream ichthyofauna of the Tapajós National Forest, Pará, Brazil

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