Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/75413
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dc.contributor.authorAlmeda, Rodrigoen_US
dc.contributor.authorConnelly T.Len_US
dc.contributor.authorBuskey E.en_US
dc.date.accessioned2020-11-11T13:51:26Z-
dc.date.available2020-11-11T13:51:26Z-
dc.date.issued2016en_US
dc.identifier.issn0269-7491en_US
dc.identifier.urihttp://hdl.handle.net/10553/75413-
dc.description.abstractWe investigated and quantified defecation rates of crude oil by 3 species of marine planktonic copepods(Temora turbinata,Acartia tonsa, andParvocalanus crassirostris) and a natural copepod assemblage afterexposure to mechanically or chemically dispersed crude oil. Between 88 and 100% of the analyzed fecalpellets from three species of copepods and a natural copepod assemblage exposed for 48 h to physicallyor chemically dispersed light crude oil contained crude oil droplets. Crude oil droplets inside fecal pelletswere smaller (median diameter: 2.4e3.5mm) than droplets in the physically and chemically dispersed oilemulsions (median diameter: 6.6 and 8.0mm, respectively). This suggests that copepods can reject largecrude oil droplets or that crude oil droplets are broken into smaller oil droplets before or duringingestion. Depending on the species and experimental treatments, crude oil defecation rates ranged from5.3 to 245 ng-oil copepod 1d 1, which represent a mean weight-specific defecation rate of 0.026mg-oilmg-Ccopepod1d 1. Considering a dispersed crude oil concentration commonly found in the water columnafter oil spills (1mlL 1) and copepod abundances in high productive coastal areas, copepods maydefecate ~1.3e2.6 mg-oil m 3d 1, which would represent ~0.15%e0.30% of the total dispersed oil perday. Our results indicate that ingestion and subsequent defecation of crude oil by planktonic copepodshas a small influence on the overall mass of oil spills in the short term, but may be quantitativelyimportant in theflux of oil from surface water to sediments and in the transfer of low-solubility, toxicpetroleum hydrocarbons into food webs after crude oil spills in the seaen_US
dc.languageengen_US
dc.relation.ispartofEnvironmental Pollutionen_US
dc.sourceEnvironmental Pollution [ISSN 0269-7491], v. 208, part B, January 2016, Pages 645-654 (January 2016)en_US
dc.subject251001 Oceanografía biológicaen_US
dc.subject.otherCrude oilen_US
dc.subject.otherZooplanktonen_US
dc.subject.otherIngestionen_US
dc.subject.otherFecal pelletsen_US
dc.subject.otherOil spillsen_US
dc.titleHow much crude oil can zooplankton ingest? Estimating the quantity of dispersed crude oil defecated by planktonic copepodsen_US
dc.identifier.doi10.1016/j.envpol.2015.10.041en_US
dc.description.lastpage654en_US
dc.description.firstpage645en_US
dc.relation.volume208en_US
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.description.numberofpages10en_US
dc.utils.revisionen_US
dc.date.coverdateEnero 2016en_US
dc.identifier.ulpgcNoen_US
dc.contributor.buulpgcBU-BASen_US
dc.description.sjr1,786
dc.description.jcr5,099
dc.description.sjrqQ1
dc.description.jcrqQ1
dc.description.scieSCIE
item.grantfulltextopen-
item.fulltextCon texto completo-
crisitem.author.deptGIR ECOAQUA: Ecofisiología de Organismos Marinos-
crisitem.author.deptIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.parentorgIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.fullNameAlmeda García, Rodrigo-
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