Search results for "rataseläimet"

showing 2 items of 2 documents

Unexpected increases in rotifer resting egg abundances during the period of contamination of Lake Orta

2016

<p>Despite their ecological importance and rapid response to environmental changes, rotifers are rarely included in palaeolimnological studies. Here, we describe changes in abundance (ABD) and morphotype (MTs) diversity of rotifer resting eggs in the sediments of deep subalpine Lake Orta, Italy, covering a period prior to (pre-) 1926, during long-term ammonia and metal pollution from a rayon factory, and subsequent recovery of water quality. Following the pollution and bacterial oxidation of the ammonia, Lake Orta became the largest and deepest acid lake in Europe. Recovery of water quality followed both a ban on the discharge of industrial wastes, and a liming intervention in 1989 an…

0106 biological sciencesPollutionmedia_common.quotation_subjectta1172Copper and ammonia pollution; Diapause; Lake Orta; Paleo-ecotoxicology; Rotifera;RotiferaRotifer010501 environmental sciencesAquatic ScienceLake Orta01 natural sciencesZooplanktonAnimal sciencerataseläimetAbundance (ecology)copper and ammonia pollution.lcsh:Physical geographylcsh:Environmental sciences0105 earth and related environmental sciencesWater Science and Technologymedia_commonlcsh:GE1-350EcologybiologyEcology010604 marine biology & hydrobiologylcsh:Geography. Anthropology. RecreationBrachionusbiology.organism_classification6. Clean waterDiapausepaleo-ecotoxicologydiapausecopper and ammonia pollutionCopper and ammonia pollutionCladoceralcsh:G13. Climate actionta1181Water qualityPaleo-ecotoxicologyEutrophicationlcsh:GB3-5030
researchProduct

Trematode cercariae as prey for zooplankton: effect on fitness traits of predators.

2019

AbstractRemoval of parasite free-living stages by predators has previously been suggested an important factor controlling parasite transmission in aquatic habitats. Experimental studies of zooplankton predation on macroparasite larvae are, however, scarce. We tested whether trematode cercariae, which are often numerous in shallow waters, are suitable prey for syntopic zooplankters. Feeding rates and survival of freshwater cyclopoids (Megacyclops viridis, Macrocyclops distinctus), calanoids (Arctodiaptomus paulseni), cladocerans (Sida crystallina) and rotifers Asplanchna spp., fed with cercariae of Diplostomum pseudospathaceum, a common fish trematode, were studied. In additional long-term e…

0301 basic medicinecopepodsSnailsRotiferareproduktioPredation0302 clinical medicineeye flukerataseläimetloisetCercariaTrophic levelLarvafood webbiologyparasite transmissionplanktonvesiekosysteemit030108 mycology & parasitologyFood webDiplostomumInfectious DiseaseshankajalkaisetTrematodaArctodiaptomusFood Chain030231 tropical medicineCladoceransZoologyZooplanktonZooplanktonfreshwater ecosystemrotifersCopepodatoukat03 medical and health sciencesAnimalsAnalysis of VarianceimumadotAquatic animalbiology.organism_classificationmortalityPredatory Behaviorvesikirputta1181MacroparasiteAnimal Science and ZoologyParasitologyravintoverkotParasitology
researchProduct