Results 51 to 60 of about 5,195 (227)

The influence of xenobiotics in river sediment on the reproduction and survival of Daphnia magna, 1820, Straus Influência de xenobióticos no sedimento de rio sobre a reprodução e a sobrevivência de Daphnia magna, 1820, Straus

Acta Limnologica Brasiliensia, 2012
AIM: The Taquari River, a tributary of Guaíba Lake, is a major economic and environmental source for Rio Grande do Sul, a state located in the far south of Brazil; METHODS: This study evaluated the interference of sediment from this river in the ...
Silvana Pereira Gonçalves, Fabiane Lucheta, Viviane Kelin de Souza, Nara Regina Terra   +3 more
doaj  

A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation

Journal of Limnology, 2015
The primary factor that governs the size and species composition of zooplankton is still a controversial issue and temperature is considered the main factor responsible for latitudinal differences.
Marlene S. Arcifa, Tânia C. dos Santos Ferreira, Claudia Fileto, Maria S. Maioli Castilho-Noll, Taís C. Bunioto, Walter J. Minto   +5 more
doaj   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

Boreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein, Thomas Kasper, Alexis Badai Samudra, Martin Theuerkauf, Markus Lothar Fischer, Neda Rahimzadeh, Maria Sekar Proborukmi, Sonja Rigterink, Agnieszka Gruszczyńska, Christian Zeeden, Simon Parfitt, David John Horne, Lucy Roberts, Dustin White, Lisa Brogmus, Hans von Suchodoletz, Tobias Lauer, Marcel Weiss, David Colin Tanner, Brigitte Urban   +19 more
wiley   +1 more source

Population ecology of marine cladocerans in Tolo Harbour, Hong Kong. [PDF]

, 2010
Li, Cheuk Yan Vivian.Thesis (M.Phil.)--Chinese University of Hong Kong, 2010.Includes bibliographical references (leaves 89-99).Abstracts in English and Chinese.Abstract (in English) --- p.IAbstract (in Chinese) --- p.IIIAcknowledgements --- p.IVTable

core  

Polyploidy and clonal diversity in an arctic cladoceran [PDF]

Heredity, 1995
Genome size determinations were coupled with allozyme and mtDNA studies to gain insights into the origin of polyploidy and clonal diversity in populations of Daphnia tenebrosa from Churchill, Manitoba. Allozymic variation at five enzyme loci allowed the detection of 32 clones.
France Dufresne, Paul D N Hebert
openaire   +1 more source

Disentangling the Drivers of a Piscivorous Intra‐Annual Cohort and the Contributions of Three Cohorts to Early‐Year Class Strength in Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Using pikeperch (Sander lucioperca) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength.
Million Tesfaye, Tomáš Jůza, Marek Šmejkal, Katerina Soukalová, Daniel Bartoň, Petr Blabolil, Martin Čech, Josef Hejzlar, Marie Prchalová, Milan Muška, Michal Tušer, Luboš Kočvara, Zuzana Sajdlová, Vladislav Draštík, Carlos Martinez, Karlos Ribeiro de Moraes, Milan Říha, Mojmír Vašek, Radka Symonová, Marek Brabec, Jan Kubečka, Allan T. Souza   +21 more
wiley   +1 more source

Aquatic risk assessment for carbaryl - recovery of cladocerans

, 2004
In EUFRAM case study 1, aquatic risk assessment for carbaryl, the risk assessment was differentiated according to ecophysiology and habitat of the species.
Hommen, U.
core   +1 more source

Exposure to toxic Microcystis via intact cell ingestion and cell crude extract differently affects small-bodied cladocerans

, 2022
Cyanobacterial blooms are increasingly common in aquatic environments worldwide. These microorganisms cause concern due to their ability to produce cyanotoxins.
Moura, Ariadne do Nascimento, Reis Molica, Renato Jose, Palmeira Vilar, Mauro Cesar, Amorim, CIHELIO, de Aquino Santos, Alane Silva   +4 more
core   +1 more source

Competencia en Cladocera: implicancias de la sobreposición en el uso de los recursos tróficos Competition in Cladocera: implications of the trophic resources use overlap

Revista Chilena de Historia Natural, 2000
A pesar que numerosa evidencia demuestra el uso de diferentes estrategias de alimentación entre cladóceros, la clásica descripción de una conducta alimentaria pasiva ha conducido a una subestimación de la sobreposición de nicho trófico sobre sus patrones
GINGER MARTINEZ, VIVIAN MONTECINO
doaj  

Long-Term Responses of Crustacean Zooplankton to Hydrological Alterations in the Danube Inland Delta: Patterns of Biotic Homogenization and Differentiation

Diversity
Our study addresses how large-scale hydrological alterations shape zooplankton biodiversity in floodplain ecosystems, which are highly sensitive to changes in river connectivity.
Pavel Beracko, Igor Kokavec, Igor Matečný   +2 more
doaj   +1 more source