Effect of varying sediment organic carbon content upon the dermal bioavailability and disposition of benzo(a)pyrene in the catfish, Ictalurus punctatus

Smith, Andrea A.; New, Russell A.; Wiles, Judith E.; Kleinow, Kevin M.

doi:10.1016/0141-1136(95)00082-8

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…This result for nitroaromatic compounds is in contrast with results obtained during studies of similar organic contaminants including PAHs, PCBs and other persistent organic pollutants, where it was reported that direct contact with sediment surfaces resulted in uptake by benthic fish (Stein et al, 1984;Hellou et al, 1994Hellou et al, , 1995Smith et al, 1996;Moermond et al, 2004;Fragoso et al, 2006). The body residue of benzo(a)pyrene via dermal contact, evaluated using anesthetized catfish (Ictalurus punctatus) placed directly on spiked sediment, was several times higher than in fish not in direct contact with the sediment (Smith et al 1996).…”

Section: Bioaccumulation and Toxicitycontrasting

confidence: 55%

“…The body residue of benzo(a)pyrene via dermal contact, evaluated using anesthetized catfish (Ictalurus punctatus) placed directly on spiked sediment, was several times higher than in fish not in direct contact with the sediment (Smith et al 1996).…”

Section: Bioaccumulation and Toxicitymentioning

confidence: 99%

“…Direct contact with sediment surfaces resulting in uptake of hydrophobic organic contaminants in benthic fish has been reported (e.g., Hellou et al, 1994Hellou et al, , 1995Smith et al, 1996) and therefore could be a potential route of exposure for explosive compounds.…”

Section: Introductionmentioning

confidence: 99%

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Toxicity and bioaccumulation of TNT in marine fish in sediment exposures

Lotufo¹,

Blackburn²,

Marlborough³

et al. 2010

Ecotoxicology and Environmental Safety

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a b s t r a c tThe bioaccumulation potential and toxicity of 2,4,6-trinitrotoluene (TNT) spiked to sediment was evaluated in juvenile sheepshead minnows (JSHM, Cyprinodon variegatus) and adult freckled blennies (FB, Hypsoblennius ionthas). The JSHM were exposed for 4 days in the presence or absence of a mesh separating fish from sediment. FB were exposed to sediment for 7 days. During the 24-day storage period (4 1C), extensive transformation of spiked TNT occurred and concentrations are expressed as the sum of TNT, aminodinitrotoluenes and diaminonitrotoluenes (SumTNT), on a dry weight basis. SumTNT in the overlying water, not exchanged during exposure, increased gradually. Survival was high (Z 90%) for JSHM exposed to 7 mg kg À 1 and FB exposed to up to 260 mg kg À 1 . All SHM died after 24 h exposure to 340 mg kg À 1 . Isolation from sediment did not significantly affect water concentrations or decrease bioaccumulation. Uptake from contact to sediment was likely negligible and bioaccumulation was from the overlying water. The feeding rate of FB exposed to 1700 mmol kg À 1 sediment suspended in water for 24-h was significantly reduced by 50%.Published by Elsevier Inc.

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