The river flood pulse, benthic biofilm, and the nutrition of Prochilodus lineatus

Bowen, Stephen H.

doi:10.1007/s10641-022-01211-1

Cited by 4 publications

(2 citation statements)

References 61 publications

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“…After leaving floodplain lakes, displacement to nearby smaller rivers could reduce predation risk (Godinho & Pompeu, 2003). Although detritus is a hyperabundant and widely available resource in Neotropical Basins (Bowen, 2022), P. costatus exhibits strong fidelity to feeding sites (Lopes et al, 2018). Therefore, to optimise growth, a gradual movement toward larger distant rivers to find suitable productive areas could reduce energy expenditure (Lucas & Baras, 2001b).…”

Section: Discussionmentioning

confidence: 99%

Small rivers, great importance: Refuge and growth sites of juvenile migratory fishes in the upper São Francisco Basin, Brazil

Moreira

Peressin

2022

Fisheries Management Eco

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Studies of migratory fish species in Neotropical Basins have generally focused on adult fishes, especially on their reproductive migration, whereas sites of growth and refuge of juveniles remain poorly investigated. We aimed to evaluate if smaller rivers play a role in the life cycle of these species. We used 13 rivers of different sizes in the upper São Francisco Basin, Brazil. We found that smaller rivers, especially when draining regions close to floodplains, were the first places where juveniles moved after leaving floodplain lakes. We also found that individuals moved downstream as they grew, and were found in increasingly larger rivers that were more distant from floodplains. Currently, the best-known strategy for conservation of neotropical migratory fishes is the maintenance of free-flowing stretches encompassing necessary habitats for life cycle completion. We conclude that small tributaries near floodplain regions are also needed in these protected free-flowing river systems.

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Section: Discussionmentioning

confidence: 99%

Small rivers, great importance: Refuge and growth sites of juvenile migratory fishes in the upper São Francisco Basin, Brazil

Moreira

Peressin

2022

Fisheries Management Eco

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“…Flooding in these areas enables the river to connect with perennial marginal lagoons and create temporary lagoons, that are completely dry during the dry season. The connection of the river with marginal lagoons provides additional resources, high-quality food for adult fish (Bowen, 2022), and increases the spatiotemporal heterogeneity of habitats, contributing to the maintenance of high biodiversity (Ward et al, 1999;Wootton, 1992;Pompeu & Godinho, 2006).…”

Section: Introductionmentioning

confidence: 99%

Fish assemblage and current status of the upper São Francisco River basin floodplain

Moreira,

Peressin,

Lopes

et al. 2023

Acta Limnol. Bras.

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Aim This study aimed to evaluate whether the upper São Francisco River basin floodplain is still used as a nursery by migratory fish and present the current status of the area’s ichthyofauna after almost 40 years since the only survey was conducted in the region. Methods Sampling occurred in seven perennial lagoons and six temporaries from São Francisco River or its direct tributaries using gillnets and trawls. Temperature, pH, and transparency of each lagoon were measured. The estimated richness was calculated, and the fish assemblage from both perennial and temporary lagoons was compared using NMDS and ANOSIM. Results Forty species were captured, of which four were non-native and three were migratory. Although there was a low abundance of migratory species, most captured individuals were juveniles. Moreover, the perennial lagoons showed higher species richness. Conclusions After almost 40 years, the floodplain lagoons of the upper São Francisco basin remain important for the recruitment of migratory species and harbor an impressive proportion of fish fauna in the upper São Francisco area. However, the reduction of migratory species and the presence of non-natives may be a sign of the degradation of these environments, emphasizing the need for conservation measures in this area.

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Feeding patterns of the Neotropical cichlid, Australoheros acaroides (Hensel, 1870), in southern Brazil

Corrêa,

Pires de Oliveira,

Emidio Junior

et al. 2024

Studies on Neotropical Fauna and Environment

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The river flood pulse, benthic biofilm, and the nutrition of Prochilodus lineatus

Cited by 4 publications

References 61 publications

Small rivers, great importance: Refuge and growth sites of juvenile migratory fishes in the upper São Francisco Basin, Brazil

Small rivers, great importance: Refuge and growth sites of juvenile migratory fishes in the upper São Francisco Basin, Brazil

Fish assemblage and current status of the upper São Francisco River basin floodplain

Feeding patterns of the Neotropical cichlid, Australoheros acaroides (Hensel, 1870), in southern Brazil

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