KOPS - The Institutional Repository of the University of Konstanz

Effects of treated sewage effluent on immune function in rainbow trout (Oncorhynchus mykiss)

Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können am Montag, 6.2. und Dienstag, 7.2. keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted on Monday, Feb. 6 and Tuesday, Feb. 7.)

Effects of treated sewage effluent on immune function in rainbow trout (Oncorhynchus mykiss)

Cite This

Files in this item

Checksum: MD5:2c5ac2b1e300f07469b3860433368b45

HÖGER, Birgit, Michael R. van den HEUVEL, Bettina C. HITZFELD, Daniel R. DIETRICH, 2004. Effects of treated sewage effluent on immune function in rainbow trout (Oncorhynchus mykiss). In: Aquatic toxicology. 70(4), pp. 345-355. ISSN 0166-445X. Available under: doi: 10.1016/j.aquatox.2004.10.010

@article{Hoger2004Effec-6894, title={Effects of treated sewage effluent on immune function in rainbow trout (Oncorhynchus mykiss)}, year={2004}, doi={10.1016/j.aquatox.2004.10.010}, number={4}, volume={70}, issn={0166-445X}, journal={Aquatic toxicology}, pages={345--355}, author={Höger, Birgit and Heuvel, Michael R. van den and Hitzfeld, Bettina C. and Dietrich, Daniel R.} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/6894"> <dcterms:issued>2004</dcterms:issued> <dc:contributor>Dietrich, Daniel R.</dc:contributor> <dcterms:bibliographicCitation>First publ. in: Aquatic toxicology 70 (2004), 4, pp. 345-355</dcterms:bibliographicCitation> <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights> <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/> <dcterms:title>Effects of treated sewage effluent on immune function in rainbow trout (Oncorhynchus mykiss)</dcterms:title> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Höger, Birgit</dc:contributor> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6894/1/Effects_of_treated_sewage_effluent_on_immune_function_in_rainbow_trout.pdf"/> <dcterms:abstract xml:lang="eng">In this study, the immune reactions of rainbow trout (Oncorhynchus mykiss) were examined, after exposure to 10, 30 and 70% of tertiary-treated municipal sewage effluent for 27 days. Exposures were conducted concurrently with and without an immune challenge using intraperitoneal injections of inactivated Aeromonas salmonicida salmonicida. Due to the time required to prepare and analyse samples, fish sampling was conducted over two consecutive days. There was no trout mortality for any of the experimental treatments. The exposure to effluent increased in vitro lymphocyte proliferation, decreased circulating lymphocytes and increased degrading erythrocytes in peripheral blood samples. Circulating lymphocytes were only decreased in the sham-injected, but not in the A. salmonicida-injected group. In addition to effluent effects, circulating lymphocytes and lymphocyte proliferation were decreased on day 2 of sampling as compared to day 1. Concentration-dependent degradation of erythrocytes was only observed on day 2 of sampling. Capture and removal of trout on day 1 of sampling presumably caused low-level stress that affected some results on day 2. Oxidative burst, phagocytosis, lysozyme, leucocyte populations other than lymphocytes and A. salmonicida-specific IgM production were not affected by exposure to effluent, and of these parameters, only oxidative burst and total leucocytes showed sampling day effects. From these results it can be observed, that with the exception of oxidative burst, those variables affected by effluent exposure were also significantly changed by the low-level sampling stress imposed by staggered sampling. Elevated liver mixed-function oxygenase activity as measured by 7-ethoxyresorufin-O-deethylase activity, and increased bile polycyclic aromatic hydrocarbon (PAH) metabolites were observed in response to sewage effluent exposure. As both PAHs and stress are known immune suppressors, it is difficult to conclude whether or not changes in immune parameters due to effluent exposure were caused by the direct action of chemicals, or were due to a general stress response.</dcterms:abstract> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Dietrich, Daniel R.</dc:creator> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6894/1/Effects_of_treated_sewage_effluent_on_immune_function_in_rainbow_trout.pdf"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:58Z</dcterms:available> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:58Z</dc:date> <dc:contributor>Hitzfeld, Bettina C.</dc:contributor> <dc:creator>Heuvel, Michael R. van den</dc:creator> <dc:creator>Hitzfeld, Bettina C.</dc:creator> <dc:creator>Höger, Birgit</dc:creator> <dc:contributor>Heuvel, Michael R. van den</dc:contributor> <dc:format>application/pdf</dc:format> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/6894"/> <dc:language>eng</dc:language> </rdf:Description> </rdf:RDF>

Downloads since Oct 1, 2014 (Information about access statistics)

Effects_of_treated_sewage_effluent_on_immune_function_in_rainbow_trout.pdf 615

This item appears in the following Collection(s)

Attribution-NonCommercial-NoDerivs 2.0 Generic Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.0 Generic

Search KOPS


My Account