Effects of long and short flooding years on the feeding ecology of piscivorous fish in floodplain river systems

Hydrobiologia ◽  
2017 ◽  
Vol 795 (1) ◽  
pp. 65-80 ◽  
Author(s):  
Larissa Strictar Pereira ◽  
Luiz Fernando Caserta Tencatt ◽  
Rosa Maria Dias ◽  
Anielly Galego de Oliveira ◽  
Angelo Antonio Agostinho
Keyword(s):  
Feeding Ecology ◽  
River Systems ◽  
Piscivorous Fish ◽  
Floodplain River

An integrated model to predict and prevent hypoxia in floodplain-river systems

2021 ◽  
Vol 286 ◽  
pp. 112213
Author(s):  
Luke M. Mosley ◽  
Todd Wallace ◽  
Joel Rahman ◽  
Tom Roberts ◽  
Matt Gibbs
Keyword(s):  
Integrated Model ◽  
River Systems ◽  
Floodplain River

scholarly journals Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river

2009 ◽  
Vol 7 (2) ◽  
pp. 267-274 ◽  
Author(s):  
Carmen G. Montaña ◽  
Kirk O. Winemiller
Keyword(s):  
Leaf Litter ◽  
Feeding Ecology ◽  
Aquatic Insects ◽  
Hydrological Cycle ◽  
Woody Debris ◽  
Stomach Contents ◽  
Main Channel ◽  
Fish Scales ◽  
Floodplain River ◽  
Venezuelan Llanos

Feeding behavior and habitat use of two species of pike cichlids, or mataguaros, (Crenicichla lugubris and C. aff. wallacii) were studied in the río Cinaruco, a floodplain river in the Venezuelan llanos. We examined 309 individuals of C. lugubris and 270 individuals of C. aff. wallacii from both the main channel and lagoons throughout the falling-water phase of the annual hydrological cycle. Crenicichla lugubris was common within habitats that contained rocks or woody debris, whereas C. aff. wallacii was more abundant in lagoons than the main channel, especially within shallow areas containing leaf litter. Although we did not capture C. aff. wallacii in rocky shoals, they sometimes were observed in these habitats. Crenicichla lugubris was larger than C. aff. wallacii (198.4 mm and 44.6 mm, respectively). Analysis of stomach contents showed that larger specimens (> 100 mm SL) C. lugubris fed mostly on small fishes (e. g. characids, cichlids), but juveniles (< 100 mm SL) consumed mostly aquatic insects, fish scales, and shrimps. Crenicichla aff. wallacii fed on aquatic insects and other invertebrates associated with leaf litter substrates.

MGB-IPH model for hydrological and hydraulic simulation of large floodplain river systems coupled with open source GIS

2017 ◽  
Vol 94 ◽  
pp. 1-20 ◽  
Author(s):  
Paulo Rógenes Monteiro Pontes ◽  
Fernando Mainardi Fan ◽  
Ayan Santos Fleischmann ◽  
Rodrigo Cauduro Dias de Paiva ◽  
Diogo Costa Buarque ◽  
...  
Keyword(s):  
Open Source ◽  
River Systems ◽  
Hydraulic Simulation ◽  
Floodplain River ◽  
Open Source Gis ◽  
Large Floodplain River

Feeding ecology and prey preferences of a piscivorous fish in the Lagoa do Peixe National Park, a Biosphere Reserve in Southern Brazil

2011 ◽  
Vol 93 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Fabiano Corrêa ◽  
Marlucy Coelho Claudino ◽  
Rodrigo Ferreira Bastos ◽  
Sônia Huckembeck ◽  
Alexandre Miranda Garcia
Keyword(s):  
Feeding Ecology ◽  
National Park ◽  
Biosphere Reserve ◽  
Southern Brazil ◽  
Piscivorous Fish ◽  
Prey Preferences

Influence of fisheries on the spatio-temporal feeding ecology of gulls along the western Iberian coast

2020 ◽  
Author(s):  
JG Calado ◽  
SN Veríssimo ◽  
VH Paiva ◽  
R Ramos ◽  
PT Vaz ◽  
...  
Keyword(s):  
Feeding Ecology ◽  
Spatio Temporal

Lithostratigraphy of the Palaeoproterozoic Hekpoort Formation (Pretoria Group, Transvaal Supergroup), South Africa

2020 ◽  
Vol 123 (4) ◽  
pp. 655-668
Author(s):  
N. Lenhardt ◽  
W. Altermann ◽  
F. Humbert ◽  
M. de Kock
Keyword(s):  
South Africa ◽  
Bushveld Complex ◽  
Sedimentary Rocks ◽  
Type Locality ◽  
Large Igneous Province ◽  
Braided River ◽  
River Systems ◽  
The West ◽  
Igneous Province ◽  
Transvaal Supergroup

Abstract The Palaeoproterozoic Hekpoort Formation of the Pretoria Group is a lava-dominated unit that has a basin-wide extent throughout the Transvaal sub-basin of South Africa. Additional correlative units may be present in the Kanye sub-basin of Botswana. The key characteristic of the formation is its general geochemical uniformity. Volcaniclastic and other sedimentary rocks are relatively rare throughout the succession but may be dominant in some locations. Hekpoort Formation outcrops are sporadic throughout the basin and mostly occur in the form of gentle hills and valleys, mainly encircling Archaean domes and the Palaeoproterozoic Bushveld Complex (BC). The unit is exposed in the western Pretoria Group basin, sitting unconformably either on the Timeball Hill Formation or Boshoek Formation, which is lenticular there, and on top of the Boshoek Formation in the east of the basin. The unit is unconformably overlain by the Dwaalheuwel Formation. The type-locality for the Hekpoort Formation is the Hekpoort farm (504 IQ Hekpoort), ca. 60 km to the west-southwest of Pretoria. However, no stratotype has ever been proposed. A lectostratotype, i.e., the Mooikloof area in Pretoria East, that can be enhanced by two reference stratotypes are proposed herein. The Hekpoort Formation was deposited in a cratonic subaerial setting, forming a large igneous province (LIP) in which short-termed localised ponds and small braided river systems existed. It therefore forms one of the major Palaeoproterozoic magmatic events on the Kaapvaal Craton.

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