Results 111 to 120 of about 12,499 (209)

Effects of climate on size structure and functioning of aquatic food webs [PDF]

, 2010
In aquatic food webs, the role of body size is notoriously strong. It is also well known that temperature has an effect on body size. For instance, Bergmann’s rule states that body size increases from warm to cold climates.
Lacerot, G.
core  

Influence of substratum surface roughness on periphytic algal community structure in a shallow tropical reservoir Influência da rugosidade do substrato sobre a estrutura da comunidade de algas perifíticas em reservatório raso tropical

Acta Limnologica Brasiliensia, 2012
AIM: This study aimed to evaluate the algal periphytic community structure on substrates with differing surface roughness in early and longer-term colonization; METHODS: Periphyton was sampled after 30 days (June 24 to July 24, 2008) and 5 days (July 07 ...
Mariane Lima de Souza, Carla Ferragut
doaj  

Decrease of diatom biovolume in biofilms exposed to arsenic

, 2015
La pollution par l’arsenic est un problème mondial. Les eaux (de surface et souterraines) en sont la voie principale de contamination. Nous avons mené une expérience visant à étudier les effets de ce métal sur les descripteurs fonctionnels et structurels des communautés de diatomées benthiques (Barral-Fraga et al., 2015).
Barral Fraga, L., Morin, Soizic, Guasch, H.   +2 more
openaire   +1 more source

Nitrate, water temperature, conductivity, and transparency drive littoral phytoplankton species composition and biovolume in two reservoirs in the Xingu river

Water Biology and Security
Ecological interactions in the littoral zone maintain water quality, biodiversity, and ecological services in freshwater ecosystems. Phytoplankton occupy a central position in the ecosystem due to their sensitivity to environmental changes and ecological
Dilailson Araújo de Souza, Francieli de Fátima Bomfim, Daniela Santana Nunes, Thiago Bernardi Vieira, Juliana Feitosa Felizzola, Karina Dias-Silva   +5 more
doaj   +1 more source

Planktonic Cyanobacteria of the tropical karstic lake Lagartos from the Yucatan Peninsula, Mexico

Revista de Biología Tropical, 2013
The tropical karstic lakes on the Mexican Caribbean Sea coast are numerous. However, there is an enormous gap of knowledge about their limnological conditions and micro-algae communities. In the present study, surface water samples were collected monthly
Francisco Valadez, Gabriela Rosiles-González, Antonio Almazán-Becerril, Martin Merino-Ibarra   +3 more
doaj  

Lack of correlation between in vitro and within patient measures of P. aeruginosa biofilms in cystic fibrosis

Heliyon
Current in vitro biofilm modelling of the opportunistic pathogen, Pseudomonas aeruginosa (PA) in people with cystic fibrosis (PwCF) is limited in its ability to mimic the complexities of the cystic fibrosis (CF) lung environment.
Amanda J. Morris, Yvonne CW. Yau, William H. DePas, Valerie J. Waters   +3 more
doaj   +1 more source

Reproducibility of Biovolumetric Parameters in Community Reconstruction [PDF]

, 1984
Author Institution: Department of Geological Sciences, Wright State UniversityCriticisms have been raised about the inadequacies of methods in community paleoecological analysis.
Wiedman, L. A.
core  

The Gulf Stream position influences the functional composition of phytoplankton in El Gergal reservoir (Spain) [PDF]

, 2012
The latitudinal position of the north-wall of the Gulf Stream influences the climatic conditions in the Atlantic North and Western Europe. Southerly movements of the Gulf Stream (low Gulf Stream Index values, GSI) typically induce unstable meteorological
Blanco, José María, Escot, Carmelo, George, D. Glen, Lucena, Juan, Moreno Ostos, Enrique, Palomino Torres, Roberto L., Rodríguez, Jaime, Rodríguez, Valeriano   +7 more
core  

Study on primary production with emphasis on phytoplankton biovolume and chlorophyll-a in the southern Caspian Sea-Goharbaran region

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017
Phytoplankton biovolume and concentration of chlorophyll a are of major concerns in estimating the primary production in aquatic ecosystems. The objective of the present study was to estimate the concentration of chlorophyll a and its relation to ...
A. Makhlogh; H. Narollahzadeh Saravi; F. Eslami; A. Keyhansani; F. Vahedi
doaj  

Investigating exudate- and habitat-mediated effects of phytoplankton on lake bacterial community dynamics [PDF]

Correlated patterns of abundance, activity, and composition are commonly observed between phytoplankton and bacterial communities. There are a number of potential explanations for correlated dynamics.
Paver, Sara F.
core