Sökning: "aquatic toxicology"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden aquatic toxicology.

  1. 1. Distribution and Long-term Effects of the Environmental Neurotoxin β-N-methylamino-L-alanine (BMAA) : Brain changes and behavioral impairments following developmental exposure

    Författare :Oskar Karlsson; Eva Brittebo; Nils Gunnar Lindquist; Erika Roman; Sandra Ceccatelli; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ALS PDC; Guam; Developmental neurotoxicity; Brain growth spurt; Behavior; Nonprotein amino acid; Excitotoxic; Cyanobacteria; Apoptosis; BMAA; environmental toxin; Algal blooming; Algblomning; algtoxin; alggift; hjärnutveckling; Toxicology; Toxikologi; Toxicology; Toxikologi;

    Sammanfattning : Many cyanobacteria are reported to produce the nonprotein amino acid β-N-methylamino-L-alanine (BMAA). Cyanobacteria are extensively distributed in terrestrial and aquatic environments and recently BMAA was detected in temperate aquatic ecosystems, e.g. the Baltic Sea. LÄS MER

  3. 2. Transcriptional biomarkers of toxicity – powerful tools or random noise? : An applied perspective from studies on bivalves

    Författare :Gustaf Magnus Oskar Ekelund Ugge; Olof Berglund; Annie Jonsson; Helena Westerdahl; Mikael Ejdebäck; Bruno Nunes; Högskolan i Skövde; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Biomarkers; Bivalves; Bivalvia; Ecotoxicology; Environmental toxicology; Environmental risk assessment; RT-qPCR; qPCR; Quantitative PCR; Systematic review; Meta-analysis; Dose-response relationships; Concentration-response relationships; Heavy metals; Metals; General toxicity; Copper; Duck mussel; Anodonta anatina; Freshwater; Gene transcription; Biomarkörer; Musslor; Bivalvia; Ekotoxikologi; Miljötoxikologi; Miljöriskbedömning; RT-qPCR; qPCR; Kvantitativ PCR; Systematic review; Metaanalys; Dos-responssamband; Koncentration-responssamband; Tungmetaller; Metaller; Allmän toxicitet; Koppar; Allmän dammussla; Anodonta anatina; Sötvatten; Gentranskription; Ekologisk modellering; Ecological Modelling Group; Biomarkörer; Musslor; Bivalvia; Ekotoxikologi; Miljötoxikologi; Miljöriskbedömning; RT-qPCR; qPCR; Kvantitativ PCR; Systematic review; Metaanalys; Dos-responssamband; Koncentration-responssamband; Tungmetaller; Metaller; Allmän toxicitet; Koppar; Allmän dammussla; Anodonta anatina; Sötvaten; Gentranskription; Biomarkers; Bivalves; Ecotoxicology; Environmental toxicology; Environmental risk assessment; Quantitative PCR; Meta-analysis; Dose-response relationships; Concentration-response relationships; Heavy metals; Metals; General toxicity; Copper; Duck mussel; Freshwater; Gene transcription;

    Sammanfattning : Aquatic organisms are constantly at risk of being exposed to potentially harmful chemical compounds of natural or anthropogenic origin. Biological life can for instance respond to chemical stressors by changes in gene expression, and thus, certain gene transcripts can potentially function as biomarkers, i.e. LÄS MER

  4. 3. Chlorinated Paraffins: improved understanding of their bioaccumulation and toxicity in Daphnia magna

    Författare :Mafalda Castro; Magnus Breitholtz; Anna Sobek; Elena Gorokhova; Lillemor Asplund; Martin Scheringer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chlorinated paraffins; POPs; bioaccumulation; toxicity; ecotoxicology; aquatic toxicology; daphnia magna; liposomes; passive dosing; hydrophobic; mixtures; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Chlorinated paraffins (CPs) are industrial chemicals, mainly used as flame retardants, plasticizers and metal cutting fluids. Their production has reached historically high levels in the last decade, with an annual production exceeding one million tonnes. LÄS MER

  5. 4. Fate of contaminants in Baltic Sea sediment ecosystems : the role of bioturbation

    Författare :Jenny E Hedman; Jonas Gunnarsson; Nils Kautsky; Valery Forbes; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Toxicology; Toxikologi; Marine Ecotoxicology; marin ekotoxikologi;

    Sammanfattning : Aquatic sediments are of major importance for the cycling of environmental pollutants, acting as both sinks and secondary sources of contaminants to the ecosystem. Sediment-living organisms can affect the fate and transport of contaminants through activities like feeding and burrowing, collectively called bioturbation. LÄS MER

  7. 5. Exploring the ecotoxicity of microparticle debris

    Författare :Zandra Gerdes; Elena Gorokhova; Martin Ogonowski; Tamara Galloway; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microplastics as emerging pollutants; hazard assessment; ecotoxicological experimental design; aquatic toxicology; chemical vector; suspended solids; reference particles; crustaceans as test organisms; behavioural assays in ecotoxicology; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : The global distribution and anticipated increase of environmental microplastic (MP) pollution are concerning. However, while the impacts of macroplastic litter on wildlife are apparent, we know relatively little about the MP hazard potential. LÄS MER