Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/50863
DC FieldValueLanguage
dc.contributor.authorSt-Amand, L.en_US
dc.contributor.authorGagnon, R.en_US
dc.contributor.authorPackard, T. T.en_US
dc.contributor.authorSavenkoff, C.en_US
dc.date.accessioned2018-11-24T19:28:18Z-
dc.date.available2018-11-24T19:28:18Z-
dc.date.issued1999en_US
dc.identifier.issn0742-8413en_US
dc.identifier.urihttp://hdl.handle.net/10553/50863-
dc.description.abstractIn order to test the sensitivity of respiration (physiological and potential) to mercury (Hg) contamination, larval shrimp Pandalus borealis were exposed to inorganic Hg (0–160 ppb) for 27 h in the laboratory. Oxygen consumption rates (RO2), potential respiration (determined by respiratory electron transfer system activity, ETSA), protein content, and swimming activity for zoeae III and zoeae V stages were measured. For both zoeae stages, ETSA and protein content remained constant after 27 h exposure to 160 ppb Hg whereas RO2 and swimming activity decreased. This study revealed the impact of different Hg levels and different exposure times on RO2 of shrimp larvae. After 10 h exposure to 160 ppb Hg, the RO2 decreased by 43 and 49% in zoeae III and zoeae V stages, respectively. Exposure time of 27 h to 80 ppb Hg and higher, induced paralysis in nearly 100% larvae. Surprisingly, the paralysed larvae displayed almost 50% of the control's RO2. The results showed that Hg disturbs a part of the respiration process without modifying the maximum activity of the enzymes involved in the ETSA assay. Therefore, the ETSA assay can not be used as a sublethal bioanalytic probe to detect Hg in short-term exposures. The decline of the RO2/ETSA ratios reported here, indicates an inability of contaminated larvae to adapt their metabolism to physiological stress caused by Hg.en_US
dc.languageengen_US
dc.publisher0742-8413-
dc.relation.ispartofComparative Biochemistry and Physiology - C Pharmacology Toxicology and Endocrinologyen_US
dc.sourceComparative Biochemistry and Physiology - C Pharmacology Toxicology and Endocrinology [ISSN 0742-8413], v. 122, p. 33-43en_US
dc.subject2302 Bioquímicaen_US
dc.subject251001 Oceanografía biológicaen_US
dc.subject.otherETS activityen_US
dc.subject.otherLarvaeen_US
dc.subject.otherMercuryen_US
dc.subject.otherPandalus borealisen_US
dc.subject.otherProteinen_US
dc.subject.otherRespirationen_US
dc.subject.otherShrimpen_US
dc.subject.otherSwimming activityen_US
dc.titleEffects of inorganic mercury on the respiration and the swimming activity of shrimp larvae, Pandalus borealisen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/S0742-8413(98)10071-3en_US
dc.identifier.scopus0033006818-
dc.contributor.authorscopusid6602918307-
dc.contributor.authorscopusid57197685960-
dc.contributor.authorscopusid7004249480-
dc.contributor.authorscopusid55996500200-
dc.description.lastpage43-
dc.description.firstpage33-
dc.relation.volume122-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.utils.revisionen_US
dc.identifier.ulpgces
item.fulltextSin texto completo-
item.grantfulltextnone-
crisitem.author.orcid0000-0002-5880-1199-
crisitem.author.fullNamePackard, Theodore Train-
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