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dc.contributor.authorBoyle, D
dc.contributor.authorFox, JE
dc.contributor.authorAkerman, JM
dc.contributor.authorSloman, KA
dc.contributor.authorHenry, TB
dc.contributor.authorHandy, RD
dc.date.accessioned2016-06-22T16:09:09Z
dc.date.available2016-06-22T16:09:09Z
dc.date.issued2014-01
dc.identifier.issn0166-445X
dc.identifier.issn1879-1514
dc.identifier.urihttp://hdl.handle.net/10026.1/4952
dc.description.abstract

Fish behaviours are often considered to be sensitive endpoints of waterborne contaminants, but little attention has been given to engineered nanomaterials. The present study aimed to determine the locomotor and social behaviours of rainbow trout (Oncorhynchus mykiss) during waterborne exposure to single-walled carbon nanotubes (SWCNTs), and to ascertain the physiological basis for any observed effects. Dispersed stock suspensions of SWCNTs were prepared by stirring in sodium dodecyl sulphate (SDS), an anionic surfactant, on an equal w/w basis. Trout were exposed to control (no SWCNT or SDS), 0.25 mg L(-1) SDS (dispersant control), or 0.25 mg L(-1) of SWCNT for 10 days. Video tracking analysis of spontaneous locomotion of individual fish revealed no significant effects of SWCNT on mean velocity when active, total distance moved, or the distribution of swimming speeds. Hepatic glycogen levels were also unaffected. Fish exposed to SWCNTs retained competitive fitness when compelled to compete in energetically costly aggressive interactions with fish from both control groups. Assessment of the respiratory physiology of the fish revealed no significant changes in ventilation rate or gill injuries. Haematocrit and haemoglobin concentrations in the blood were unaffected by SWCNT exposure; and the absence of changes in the red and white pulp of the spleen excluded a compensatory haematopoietic response to protect the circulation. Despite some minor histological changes in the kidneys of fish exposed to SWCNT compared to controls, plasma ion concentrations and tissue electrolytes were largely unaffected. Direct neurotoxicity of SWCNT was unlikely with the brains showing mostly normal histology, and with no effects on acetylcholinesterase or Na(+)/K(+)-ATPase activities in whole brain homogenates. The minimal effects of waterborne exposure to SWCNT observed in this study are in contrast to our previous report of SWCNT toxicity in trout, suggesting that details of the dispersion method and co-exposure concentration of the dispersing agent may alter toxicity.

dc.format.extent154-164
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoeng
dc.publisherElsevier BV
dc.subjectLocomotion
dc.subjectOncorhynchus mykiss
dc.subjectBioenergetics
dc.subjectNeurotoxicity
dc.subjectSingle-walled carbon nanotubes
dc.subjectNanomaterials
dc.titleMinimal effects of waterborne exposure to single-walled carbon nanotubes on behaviour and physiology of juvenile rainbow trout (Oncorhynchus mykiss)
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/24308918
plymouth.volume146
plymouth.publisher-urlhttp://dx.doi.org/10.1016/j.aquatox.2013.11.006
plymouth.publication-statusPublished
plymouth.journalAquatic Toxicology
dc.identifier.doi10.1016/j.aquatox.2013.11.006
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeNetherlands
dcterms.dateAccepted2013-11-09
dc.identifier.eissn1879-1514
dc.rights.embargoperiodNot known
rioxxterms.funderNatural Environment Research Council
rioxxterms.identifier.projectSub-lethal Effects of Manufactured Nanoparticles on Fish: Bioenergetics, Brain, and Behaviour
rioxxterms.versionofrecord10.1016/j.aquatox.2013.11.006
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2014-01
rioxxterms.typeJournal Article/Review
plymouth.funderSub-lethal Effects of Manufactured Nanoparticles on Fish: Bioenergetics, Brain, and Behaviour::Natural Environment Research Council


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