Search results for "epilithon"

showing 2 items of 2 documents

A STUDY ON THE POSSIBLE EFFECT OF TWO CRAYFISH SPECIES ON EPILITHIC ALGAE IN A MOUNTAIN STREAM FROM CENTRAL SPAIN

2006

The effects on epilithic algae of increasing densities of two crayfish species, Austropotamobius italicus and Pacifastacus leniusculus, the latter recently introduced in Spain, have been monitored using riverine enclosures, within a large experimental study on crayfish-macrobenthos interactions in a mountain stream. A 3-month test was carried out for each species using crayfish densities comprising between 0-5 individuals/m2 kept in 1-m2 enclosures. Epilithon was sampled periodically within the enclosures and chlorophyll a, b and c were measured by spectrophotometry. Neither statistically significant positive nor negative effects were observed on algal abundance (Chl concentrations) during …

chlorophyllslcsh:SH1-691Chlorophyll abiologyEcologyepilithonAquatic Sciencebiology.organism_classificationCrayfishPacifastacuslcsh:Aquaculture. Fisheries. Anglingchemistry.chemical_compoundPacifastacus leniusculuschemistryAlgaeAustropotamobius italicusAbundance (ecology)Animal Science and ZoologyAustropotamobius italicusMountain streamBulletin Français de la Pêche et de la Pisciculture
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Stability and endemicity of benthic diatom assemblages from different substrates in a maritime stream on Byers Peninsula, Livingston Island, Antarcti…

2013

16 páginas, 3 tablas, 9 figuras.

geographyCommunity turnovergeography.geographical_feature_categorySpecies associationbiologyEcologyEpilithonGlobal warmingClimate changeGeologyDisturbanceOceanographybiology.organism_classificationDiatomPeninsulaDominance (ecology)Cosmopolitan distributionClimate changeHydrologyEndemismEcology Evolution Behavior and SystematicsBenthic diatomGeology
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