Results 111 to 120 of about 3,971,160 (346)

Wind and trophic status explain within and among‐lake variability of algal biomass

Limnology and Oceanography Letters, 2018
Phytoplankton biomass and production regulates key aspects of freshwater ecosystems yet its variability and subsequent predictability is poorly understood.
J. Rusak, Andrew J. Tanentzap, Jennifer Klug, K. Rose, S. Hendricks, Eleanor Jennings, Alo Laas, Donald C. Pierson, Elizabeth Ryder, Robyn L. Smyth, D. White, L. Winslow, Rita Adrian, Rita Adrian, L. Arvola, E. Eyto, H. Feuchtmayr, M. Honti, V. Istvánovics, Ian D. Jones, C. Mcbride, Silke R. Schmidt, Silke R. Schmidt, D. Seekell, P. Staehr, Guangwei Zhu   +25 more
semanticscholar   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

The Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis, Keila Xavier Magalhães, Thiago Nilton A. Pereira, Janice Muriel‐Cunha, Alberto Akama   +4 more
wiley   +1 more source

Comparative algological and bacteriological examinations on biofilms developed on different substrata in a shallow soda lake [PDF]

, 2008
According to the European Water Framework Directives, benthic diatoms of lakes are a tool for ecological status assessment. In this study, we followed an integrative sample analysis approach, in order to find an appropriate substratum for the water ...
A Cattaneo, A Cattaneo, A Poulicková, A. K. Borsodi, AS Rosemarin, B Massieux, C Schnitchen, CE Christie, D Eminson, European Parliament, G. Várbíró, Gy. Záray, H Utermöhl, J Podani, J Preston-Mafham, J Seele, J Tison, JA Grimes, JL Garland, JL Garland, JM Burkholder, JWG Lund, K Kralj, K Kröpfl, K. T. Kiss, K. É. Szabó, L King, P. Vladár, RG Wetzel, S Blanco, T Kohonen, U Anthoni, YS Park, É Ács, É Ács, É. Kiss, Éva Ács   +36 more
core   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

Effect of habitat degradation on competition, carrying capacity, and species assemblage stability [PDF]

, 2017
In human-impacted rivers, nutrient pollution has the potential to disrupt biodiversity organisation and ecosystem functioning, prompting calls for effective monitoring and management.
Calizza, Edoardo, Careddu, Giulio, Costantini, Maria Letizia, Rossi, Loreto   +3 more
core   +1 more source

THE PERMISSIBLE INPUT OF BIOGENIC ELEMENTS TO WATER BODIES WITH SLOWED AND MODERATE WATER EXCHANGE

Водное хозяйство России: проблемы, технологии, управление, 2020
The article presents the outputs of researches on determination of permissible input of biogenic matter to water bodies with different types of moderate and slowed water exchange: that is phytoplankton, phytoplankton/macrophyte, and macrophyte types. We
Aleksandr N. Popov
doaj   +1 more source

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

The Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia, Sandriely F. Marcondes, Mayara S. Siqueira, Taynara R. F. Leão, Robson A. Rodrigues, Karine N. N. Farias, André L. N. Silva, Karin Virgínia Kuibida, Lilian Franco‐Belussi, Carlos E. Fernandes   +9 more
wiley   +1 more source

Biogeographic analysis of the Tortugas Ecological Reserve: Examining the refuge effect following reserve establishment [PDF]

, 2004
Almost 120 days at sea aboard three NOAA research vessels and one fishing vessel over the past three years have supported biogeographic characterization of Tortugas Ecological Reserve (TER).
Burke, John S., Burton, Michael L., Currin, Carolyn A., Field, Donald W., Fonseca, Mark S., Hare, Jonathan A., Kenworthy, W. Judson, Uhrin, Amy V.   +7 more
core  

Dietary breadth and trophic position of introduced European catfish Silurus glanis in the River Tarn (Garonne River basin), southwest France [PDF]

, 2010
Although being a widely introduced and successfully established species, the European catfish Silurus glanis L. (the world’s third largest freshwater fish) remains poorly studied in its introduced areas.
Crivelli, Alain Jean, Cucherousset, Julien, Céréghino, Régis, Kopp, Dorothée, Santoul, Frédéric, Syväranta, Jari   +5 more
core   +4 more sources

Monitoring the trophic status of reservoirs

, 1987
The current situation of regional, rather' than national, problems of eutrophication in standing waters has been widely aired in recent reports. A reliable, quantitative data base is a prerequisite to future trend monitoring, a concensus view of those reports. The objective of this report is to establish requirements, methodology and a minimal data set
Hilton, J., Carrick, T.R., Rigg, E., Lishman, J.P., George, D.G., Hewitt, D.   +5 more
openaire   +1 more source