<rdf:RDF xmlns:rdf="http://www.openarchives.org/OAI/2.0/rdf/" xmlns:ow="http://www.ontoweb.org/ontology/1#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ds="http://dspace.org/ds/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
   <ow:Publication rdf:about="oai:digibug.ugr.es:10481/52560">
      <dc:title>Assessment of toxic effects of magnetic particles used for lake restoration on Chlorella sp. and on Brachionus calyciflorus</dc:title>
      <dc:creator>Álvarez-Manzaneda Salcedo, María Inmaculada</dc:creator>
      <dc:creator>Vicente Álvarez De Manzaneda, María Inmaculada De</dc:creator>
      <dc:subject>Magnetic particles</dc:subject>
      <dc:subject>Toxicity</dc:subject>
      <dc:subject>Lake restoration</dc:subject>
      <dc:subject>Eutrophication</dc:subject>
      <dc:subject>Brachionus calyciflorus</dc:subject>
      <dc:subject>Chlorella sp</dc:subject>
      <dc:description>Laboratory tests, by following standardized Organization for Economic Co-operation and Development&#xd;
(OECD) protocols, were run for evaluating the acute effects of iron magnetic microparticles (MPs),&#xd;
recently proposed for lake restoration, on Chlorella sp. (algal growth) and on the rotifer B. calyciflorus&#xd;
(mortality). In addition, the MPs potential indirect effects on rotifer egg bank were assessed by performing&#xd;
hatching rate test with B. calyciflorus cysts in contact with dissolved iron (Tot-Fedis). In the algal&#xd;
growth test, no inhibition occurred at the two lowest MPs concentrations (0.01 and 0.05 g l 1) which&#xd;
would correspond, considering the adsorption efficiency ratio (Phosphorus: MPs), to P concentrations&#xd;
lower than 0.94 mg P l 1, much higher than typical concentrations found in natural waters. For higher&#xd;
MPs dose (EC50 for Chlorella sp. was 0.15 g l 1), no nutrient limitations but high turbidity and Tot-Fedis&#xd;
values cause negative effects on algal growth. For the case of B. calyciflorus, LC50 was 1.63 g MPs l 1&#xd;
(corresponding to 30.7 mg P l 1). When analyzing Tot-Fedis effect, the hatching rate of B. calyciflorus cysts&#xd;
was 100% for all treatments. To sum up our results for B. calyciflorus acute and chronic toxicity tests, it is&#xd;
extremely unlikely the mortality of adult organisms in contact with MPs as well as an affectation of the&#xd;
rotifer egg bank. In conclusion, it is expected that MPs addition in a real whole-lake application cause&#xd;
minor lethal and sublethal effects on both Chlorella sp. and B. calyciflorus.</dc:description>
      <dc:date>2018-07-30T11:36:03Z</dc:date>
      <dc:date>2018-07-30T11:36:03Z</dc:date>
      <dc:date>2017</dc:date>
      <dc:type>info:eu-repo/semantics/article</dc:type>
      <dc:identifier>Chemosphere 187: 347-356</dc:identifier>
      <dc:identifier>http://hdl.handle.net/10481/52560</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:rights>http://creativecommons.org/licenses/by-nc-nd/3.0/es/</dc:rights>
      <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
      <dc:rights>Atribución-NoComercial-SinDerivadas 3.0 España</dc:rights>
   </ow:Publication>
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