Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/75428
Title: Dispersant Corexit 9500A and chemically dispersed crude oil decreases the growth rates of meroplanktonic barnacle nauplii (Amphibalanus improvisus) and tornaria larvae (Schizocardium sp.)
Authors: Almeda, Rodrigo 
Bona, S
Foster, C
Buskey E.J
UNESCO Clasification: 251001 Oceanografía biológica
Keywords: Meroplanktonic larvae
Crude oil
Dispersant Corexit 9500AT
Tornaria larvae
Cirripede nauplii, et al
Issue Date: 2014
Journal: Marine Environmental Research 
Abstract: Our knowledge of the lethal and sublethal effects of dispersants and dispersed crude oil on meroplanktonic larvae is limited despite the importance of planktonic larval stages in the life cycle of benthic invertebrates. We determined the effects of Light Louisiana Sweet crude oil, dispersant Corexit 9500A, and dispersant-treated crude oil on the survival and growth rates of nauplii of the barnacle Amphibalanus improvisus and tornaria larvae of the enteropneust Schizocardium sp. Growth rates of barnacle nauplii and tornaria larvae were significantly reduced after exposure to chemically dispersed crude oil and dispersant Corexit 9500A at concentrations commonly found in the water column after dispersant application in crude oil spills. We also found that barnacle nauplii ingested dispersed crude oil, which may have important consequences for the biotransfer of petroleum hydrocarbons through coastal pelagic food webs after a crude oil spill. Therefore, application of chemical dispersants increases the impact of crude oil spills on meroplanktonic larvae, which may affect recruitment and population dynamics of marine benthic invertebrates.
URI: http://hdl.handle.net/10553/75428
ISSN: 0141-1136
DOI: 10.1016/j.marenvres.2014.06.007
Source: Marine Environmental Research [ISSN 0141-1136], v. 99, p. 212-217 (August 2014)
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