Results 1 to 10 of about 5,836 (156)

Description of Flexiglena gen. nov. and new members of Discoplastis and Euglenaformis (Euglenida). [PDF]

J Phycol, 2021
Environmental sampling in Poland and the United States and phylogenetic analyses based on 567 sequences of four genes (155 sequences of nuclear SSU rDNA, 139 of nuclear LSU rDNA, 135 of plastid‐encoded SSU rDNA, and 138 of plastid‐encoded LSU rDNA) resulted in description of the new genus Flexiglena, which has been erected by accommodating Euglena ...
Łukomska-Kowalczyk M, Chaber K, Fells A, Milanowski R, Zakryś B.   +4 more
europepmc   +2 more sources

Excrétion de carbone organique par le phytoplancton lémanique [PDF]

Swiss Journal of Hydrology, 1986
The release of soluble organic carbon by the phytoplankton in the trophogenic layer of Lake Geneva has been investigated by14C method from March to November 1984. The carbon excretion rate varied from 0.01 to 0.5 mg C·m−3·h−1 and depended primarily upon the rate of its photosynthetic assimilation.
Feuillade, M., Dufour, P., Feuillade, J., Pelletier, J.P.   +3 more
openaire   +4 more sources

Microparticles from dental calculus disclose paleoenvironmental and palaeoecological records. [PDF]

Ecol Evol
Dental calculus analysis reveals evidence about past dietary ecology and plant diversity. This multi‐proxy study focuses on pollen and non‐pollen palynomorphs. We detected plants referable to woody habitats and warm‐temperate climates. Clues about past ecological and environmental issues of Central Italy were found.
D'Agostino A, Di Marco G, Rolfo MF, Alessandri L, Marvelli S, Braglia R, Congestri R, Berrilli F, Fuciarelli MF, Ferracci A, Canini A, Gismondi A.   +11 more
europepmc   +2 more sources

Ecologie du phytoplancton du lac Kivu [PDF]

Tropicultura, 2008
Speciation within the African Coffee Pathogen. Cet article analyse s'il est avantageux d'utiliser le compost au lieu de l'engrais minéral pour produire la laitue dans la zone urbaine et péri-urbaine de Yaoundé.
Sarmento, H.
doaj   +3 more sources

Harmful micro-algal blooms and local environmental conditions of the coastal fringe: Moroccan Mediterranean coasts as a case study [PDF]

E3S Web of Conferences, 2021
The dynamic study of harmful phytoplankton, conducted from June 2013 to May 2014, has tracked the evolution of the microalgae community at four sites located along the Moroccan western Mediterranean coast.
Sitel Ferdaous, Rijalebled Belahcen, Er-Raioui Hassan   +2 more
doaj   +1 more source

Shifts in growth light optima among diatom species support their succession during the spring bloom in the Arctic

Journal of Ecology, Volume 110, Issue 6, Page 1356-1375, June 2022., 2022
Our results suggest that Arctic diatoms species photoadaptation strategy is tuned to the light environment of the habitats in which they dominate and indeed drives the seasonal taxonomic succession. Abstract Diatoms of the Arctic Ocean annually experience extreme changes of light environment linked to photoperiodic cycles and seasonal variations of the
Dany Croteau, Thomas Lacour, Nicolas Schiffrine, Philippe‐Israël Morin, Marie‐Hélène Forget, Flavienne Bruyant, Joannie Ferland, Augustin Lafond, Douglas A. Campbell, Jean‐Éric Tremblay, Marcel Babin, Johann Lavaud   +11 more
wiley   +1 more source

Taxing interacting externalities of ocean acidification, global warming, and eutrophication

Natural Resource Modeling, Volume 34, Issue 3, August 2021., 2021
Abstract We model a stylized economy dependent on agriculture and fisheries to study optimal environmental policy in the face of interacting external effects of ocean acidification, global warming, and eutrophication. This allows us to capture some of the latest insights from research on ocean acidification.
Martin C. Hänsel, Jeroen C. J. M. van den Bergh   +1 more
wiley   +1 more source

Diatomáceas de rios da bacia hidrográfica Litorânea, PR, Brasil: Coscinodiscophyceae e Fragilariophyceae Diatoms from Litorânea watershed rivers, Paraná State, Brazil: Coscinodiscophyceae and Fragilariophyceae

Acta Botânica Brasílica, 2005
Realizou-se o inventário florístico das diatomáceas pertencentes às classes Coscinodiscophyceae e Fragilariophyceae de rios da bacia hidrográfica Litorânea do Paraná.
Monaliza Landucci, Thelma A. Veiga Ludwig   +1 more
doaj   +1 more source

Impact du zooplancton métazoaire sur le phytoplancton et les protozoaires ciliés dans le réservoir Sahela (Maroc) [PDF]

, 2002
L'impact du zooplancton métazoaire sur le phytoplancton et les protozoaires ciliés a été mesuré durant la période de juillet à décembre 1999 dans le réservoir Sahela sous climat méditerranéen semi-aride.Les expériences ont été réalisées à l'aide de ...
Alaoui-Mhamdi, M., Atiki, I., Derraz, K., El Alami, R.   +3 more
core   +1 more source

Evaluation of the sampling methods applied to phycoperiphyton studies in the Ratones River estuary, Brazil Avaliação dos métodos de coleta aplicados no estudo do ficoperifíton no estuário do rio Ratones, SC, Brasil

Acta Limnologica Brasiliensia, 2010
AIM: The present study aimed on testing the efficiency of four sampling methods for identification and quantification applied in studies on the biodiversity and spatial-temporal distribution of the phycoperiphyton in the Ratones River estuary; METHODS ...
Bianca Vettorato, Roselane Laudares-Silva, Dávia Talgatti, Mariângela Menezes   +3 more
doaj   +1 more source