Catálogo de los peces de la cuenca Iténez (Bolivia y Brasil)

Jégu, Michel; Queiroz, Luiz J. De; Terrazas, Jimena Camacho; Torrente‐Vilara, Gislene; Carvajal‐Vallejos, Fernando M.; Pouilly, Marc; Yunoki, Takayuki; Zuanon, Jansen

doi:10.4000/books.irdeditions.18546

Cited by 2 publications

(2 citation statements)

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“…En el caso de Rivulus, actualmente con una sola especie encontrada en Cuba, las especies presentes en Bolivia que pertenecían a este género han sido reubicadas dentro de Melanorivulus y Anablepsoides (Costa 2011). Jégu et al (2012) entre las especies con identificación válida registradas en la cuenca del río Iténez en Bolivia y Brasil incluyen seis especies de rivúlidos. Para dos de estas especies, Neofundulus guaporensis Costa 1988 y Trigonectes macrophthalmus, se citan referencias que respaldan su presencia unicamente en las localidades tipo que se encuentran en la parte brasilera de la cuenca.…”

Section: Inventarios Y Diversidad En Boliviaunclassified

Rivulids (Rivulidae: Cyprinodontiformes) of Bolivia: knowledge status and updated inventory

Drawert

2023

NHAC

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The state of knowledge regarding rivulids in Bolivia is still limited and has some significant gaps. With the aim of synthesizing and systematizing the available information, which is often scattered, a monographic review is presented that examines the knowledge status of the Rivulidae family and provides an updated inventory of the species present in the country, based on valid records supported by voucher specimens deposited in scientific collections. The presence of 31 species of the Rivulidae family in Bolivian territory is confirmed, distributed across 10 genera and belonging to two subfamilies: Cynolebiinae and Rivulinae. Furthermore, it is validated that 58% (18 species) are endemic to Bolivia, while 25.8% (8 species) have a highly restricted distribution and are recorded only from their type localities. In the context of Bolivia, this work provides a solid foundation for future research and significantly contributes to the knowledge, and therefore the conservation, of this paradigmatic group of fish.

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Section: Inventarios Y Diversidad En Boliviaunclassified

Rivulids (Rivulidae: Cyprinodontiformes) of Bolivia: knowledge status and updated inventory

Drawert

2023

NHAC

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“…The Brazilian Shield is formed by Tertiary rocks, predominantly granite and basalt, that successive weathering and erosion shaped into hills and plateaus that descend from the south to the north, varying between 300 and 100 m covered in lateritic soil (Figure 1). To the south, the pre-Andean plains, also called the Chaco-Benian plains, are flat expanses of accumulated Quaternary alluvial deposits (gravel, sand, clays and silt), below 300 m. Therefore, fed by tributaries of both lithologies, the Guaporé river is a place of exchange in fish fauna where 619 species have been identified (Jégu et al, 2012; Maldonado and Goitia, 2012).…”

Section: Environmental Settingmentioning

confidence: 99%

Archaeological history of Middle Holocene environmental change from fish proxies at the Monte Castelo archaeological shell mound, Southwestern Amazonia

et al. 2020

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Monte Castelo, an archeological shell mound located on the southwestern periphery of the Amazon basin, is an artificial forest island occupied from the Middle to late-Holocene, and it contains one of the longest, continuous sequences of human occupation anywhere in the basin. Analysis of fish remains investigates fluctuations in the fish communities that are markers of changes in the paleoenvironment. The 8112 taxonomically identified remains document diagnostic taxa that are drought-tolerant (armoured catfishes, swamp-eels and tiger fishes) and from swampy environments, indicating probable occupation during low-waters periods. The results from Monte Castelo contrasts with the use of shell mounds as refuges from high-water season floods, a dominant hypothesis. A considerable shift in the nature of the fish spectrum occurred around 4000 BP with increased diversity; the number of taxa jumps from 18 to 48. The Middle Holocene occupations, from 6000 to 4000 BP, reflect long-term stability in drought-tolerant taxa collaborating with paleoecological evidence of dryer conditions. The post 4000 BP introduction of small-sized cichlids and characins suggests an initial exploitation of flooded forests. Archeological fish remains corroborate paleoenvironmental records of increased precipitation between the Middle and Late-Holocene. The probable replacement of some savanna areas by forest vegetation, and the accompanying alteration of aquatic landscapes, is documented through the presence/absence of certain taxa in Monte Castelo’s occupations. This suggests new economic strategies and the exploitation of new ecological niches, as the fish remains correspond to approximately 80% of the vertebrate fauna throughout the archeological sequence.

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Catálogo de los peces de la cuenca Iténez (Bolivia y Brasil)

Abstract: Águas do iténez ou guaporé. Recursos aquáticos de um patrimônio binacional (Bolívia e Brasil)

Cited by 2 publications

References 64 publications

Rivulids (Rivulidae: Cyprinodontiformes) of Bolivia: knowledge status and updated inventory

Rivulids (Rivulidae: Cyprinodontiformes) of Bolivia: knowledge status and updated inventory

Archaeological history of Middle Holocene environmental change from fish proxies at the Monte Castelo archaeological shell mound, Southwestern Amazonia

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