Results 41 to 50 of about 2,451 (208)

Periphytic algal community in lentic environments of the Upper Paraná River floodplain: seasonal and spatial variation

Acta Limnologica Brasiliensia, 2018
Aim: This study aimed to evaluate the influence of seasonal variation in the hydrological regime and of limnological variables on species richness of periphytic algae in lakes of the Upper Paraná River floodplain.
Kisay Lorena Adame, Barbara Dunck, Liliana Rodrigues   +2 more
doaj   +1 more source

Miocene to Quaternary Tectonostratigraphic Evolution of the Northern Section of the Burdur‐Fethiye Shear Zone, South‐Western Türkiye

Geological Journal, EarlyView.
New zircon ages reveal that lacustrine sedimentation initiated in the Late Miocene (Messinian), revising earlier Pliocene age assignments. The study results support the interpretation of the northern BFSZ as a broad left‐lateral transtensional shear zone rather than a discrete sinistral fault or simple extensional graben array.
İrem Elitez, Gürsel Sunal, Cenk Yaltırak, İsak Yılmaz   +3 more
wiley   +1 more source

Carbon accumulation in Amazonian floodplain lakes: A significant component of Amazon budgets?

Limnology and Oceanography Letters, 2017
The Amazon floodplains cover approximately 10% of the Amazon Basin and are composed of predominantly anoxic sediments that may store large amounts of carbon. Our study combines 210Pb derived sedimentation rates from four recently analyzed sediment cores (
Luciana M. Sanders, Kathryn H. Taffs, Debra J. Stokes, Christian J. Sanders, Joseph M. Smoak, Alex Enrich‐Prast, Paul A. Macklin, Isaac R. Santos, Humberto Marotta   +8 more
doaj   +1 more source

Effect of local and regional factors on the structure of the fish communities associated with aquatic macrophyte stands in oxbow lakes on the Amazon floodplain [PDF]

Anais da Academia Brasileira de Ciências
The Amazon floodplain is home to an extremely high diversity of fish, with lakes playing an important role in the establishment of this biological richness.
RONALDO S. DA SILVA, JEAN CARLO G. ORTEGA, TIAGO RICARDO F. JACÓ, GUILHERME S. CABRAL, FABIANO CORRÊA, LUCENA R. VIRGILIO, LUCIANO F.A. MONTAG   +6 more
doaj   +1 more source

Evaluation of fisheries management strategies using a biotic integrity index in floodplain lakes in the lower Solimões River, Amazonas, Brazil

Acta Amazonica, 2022
Fisheries is an important activity in the Amazon basin and potentially has a high impact on ichthyofauna. With the aim of achieving sustainability in fisheries of target species, protected areas were established within a fisheries management framework ...
Bruna de Souza ANDRADE, Carlos Edwar de Carvalho FREITAS, Maria Letizia PETESSE, Flávia Kelly SIQUEIRA-SOUZA   +3 more
doaj   +1 more source

Ichnology of the Rhätsandstein in the Exter Formation (Triassic), Germany

Geological Journal, EarlyView.
Trace fossils from the Rhätsandstein of southern Germany record repeated colonization of high‐energy shallow‐marine substrates before the Triassic–Jurassic transition. The assemblage reflects environmental and preservational controls on ichnodiversity.
Daniel Sedorko, James H. Nebelsick
wiley   +1 more source

Ecomorphological correlates of twenty dominant fish species of Amazonian floodplain lakes

Brazilian Journal of Biology
Fishes inhabiting Amazonian floodplain lakes exhibits a great variety of body shape, which was a key advantage to colonize the several habitats that compose these areas adjacent to the large Amazon rivers.
F. K. Siqueira-Souza, C. Bayer, W. H. Caldas, D. C. Cardoso, K. C. Yamamoto, C. E. C. Freitas   +5 more
doaj   +1 more source

Length-weight relationships of ornamental fish from floodplain lakes in the Solimões River basin (Iranduba, Amazonas, Brazil)

Revista Colombiana de Ciencia Animal Recia, 2019
This research reports the LWR of ornamental fish from floodplain lakes of the Solimões River basin. The fish were caught in the Paciência island (a fluvial island) in two lakes Sacambú and Cacau using purse seine 7 m × 4 m and mesh size = 3 mm, once ...
André Sampaio, Jamerson Aguiar-Santos, Hélio Anjos, Carlos Freitas, Flávia Siqueira-Souza   +4 more
doaj   +1 more source

Annual and Seasonal Rainfall Variability in Mozambique During the Nineteenth Century

International Journal of Climatology, EarlyView.
This paper presents the first annually and seasonally resolved reconstructions of nineteenth‐century rainfall variability for Mozambique derived from the analysis of extensive documentary evidence. It reveals spatially heterogeneous rainfall patterns with recurrent multi‐year droughts, episodic extreme wet events, and a strong coherence between ...
David J. Nash, Matthew J. Hannaford, Bárbara Direito   +2 more
wiley   +1 more source

Perception of Amazonian fishers regarding environmental changes as causes of drastic events of fish mortality

Brazilian Journal of Biology, 2022
Events of catastrophic fish mortality in the lakes of the Amazonian floodplains are not uncommon. They are generally associated with thermal inversion of the water column, which is provoked by cold air masses that originate from the south of the ...
J. A. C. Pinheiro, V. V. C. Gonçalves, H. S. Pereira, T. J. P. Fraxe, J. M. Oka, F. Siqueira-Souza, C. E. C. Freitas   +6 more
doaj   +1 more source