Factors affecting the elimination of PCBs in the marine copepod Acartia tonsa

McManus, George B.; Wyman, Kevin; Peterson, William T.; Wurster, Charles F.

doi:10.1016/0272-7714(83)90127-0

Cited by 48 publications

(28 citation statements)

References 17 publications

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“…Copepod eggs are rich in lipids, and therefore may potentially accumulate high concentrations of lipophilic contaminants [140]. Although information on the bioaccumulation of PAHs in zooplankton egg is scarce, accumulation of some specific PAH, i.e.…”

Section: Discussionmentioning

confidence: 99%

Interactions between Zooplankton and Crude Oil: Toxic Effects and Bioaccumulation of Polycyclic Aromatic Hydrocarbons

Almeda¹,

et al. 2013

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We conducted ship-, shore- and laboratory-based crude oil exposure experiments to investigate (1) the effects of crude oil (Louisiana light sweet oil) on survival and bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) in mesozooplankton communities, (2) the lethal effects of dispersant (Corexit 9500A) and dispersant-treated oil on mesozooplankton, (3) the influence of UVB radiation/sunlight exposure on the toxicity of dispersed crude oil to mesozooplankton, and (4) the role of marine protozoans on the sublethal effects of crude oil and in the bioaccumulation of PAHs in the copepod Acartia tonsa. Mortality of mesozooplankton increased with increasing oil concentration following a sigmoid model with a median lethal concentration of 32.4 µl L−1 in 16 h. At the ratio of dispersant to oil commonly used in the treatment of oil spills (i.e. 1∶20), dispersant (0.25 µl L−1) and dispersant- treated oil were 2.3 and 3.4 times more toxic, respectively, than crude oil alone (5 µl L−1) to mesozooplankton. UVB radiation increased the lethal effects of dispersed crude oil in mesozooplankton communities by 35%. We observed selective bioaccumulation of five PAHs, fluoranthene, phenanthrene, pyrene, chrysene and benzo[b]fluoranthene in both mesozooplankton communities and in the copepod A. tonsa. The presence of the protozoan Oxyrrhis marina reduced sublethal effects of oil on A. tonsa and was related to lower accumulations of PAHs in tissues and fecal pellets, suggesting that protozoa may be important in mitigating the harmful effects of crude oil exposure in copepods and the transfer of PAHs to higher trophic levels. Overall, our results indicate that the negative impact of oil spills on mesozooplankton may be increased by the use of chemical dispersant and UV radiation, but attenuated by crude oil-microbial food webs interactions, and that both mesozooplankton and protozoans may play an important role in fate of PAHs in marine environments.

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Section: Discussionmentioning

confidence: 99%

Interactions between Zooplankton and Crude Oil: Toxic Effects and Bioaccumulation of Polycyclic Aromatic Hydrocarbons

Almeda¹,

et al. 2013

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“…The stored wax esters will eventually be used for reproduction and most of the accumulated pollutants will thus be transferred to the eggs which could have adverse effects on reproductive output and have life history implications. McManus et al (1983) found that 23% of the depuration of PCB from female Acartia tonsa were in the form of lipid rich eggs. The effect of PCB and PBDE on larval development deserves further attention.…”

Section: Uptake Via Water At Different Life Stagesmentioning

confidence: 98%

Bioaccumulation of 14C-PCB 101 and 14C-PBDE 99 in the marine planktonic copepod Calanus finmarchicus under different food regimes

Magnusson

Östberg

et al. 2007

Marine Environmental Research

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“…Bacterivores may then pass these materials on to higher zooplankton such as copepods. Wyman & O'Conner (1980) and McManus et al (1983) demonstrated that feeding of PCB-contaminated phytoplankton to Acartia tonsa increased uptake of PCB.…”

Section: Introductionmentioning

confidence: 99%

Bioavailability and trophic transfer of humic-bound copper from bacteria to zooplankton

Lores

Pennock²

1999

Mar. Ecol. Prog. Ser.

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The effect of humic acid (HA) on uptake and transfer of Cu by selected marine organisms from the microbial loop was determined. Bacteria grown with and without 15 pg Cu 1-' and with and without 10 mg Suwannee River Humic Acid (SRHA) 1-' were fed to Uronema sp. The Uronema were subsequently fed to Acartia tonsa to determine the effect of humic acid on the uptake and transfer of Cu from bacteria to copepods. The presence of 10 mg SRHA 1-' reduced Cu uptake in A. tonsa by an average of 5 4 % and significantly reduced the negative effects of Cu on reproductive success of A. tonsa. The percentage of the total Cu residues in A. tonsa resulting from feeding was estimated by exposing A, tonsa to the same conditions with and without pre-exposed Uronen~a as food. The results indlcate that approximately 50% of the Cu residue is due to feeding. Thus, SRHA seems to affect Cu uptake in A. tonsa through binding of free Cu in the water at the same rate as through the food chain. This study demonstrates the importance of complexation of metals by organic matter and trophic transfer processes for organisms critical to estuarine food webs.

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Factors affecting the elimination of PCBs in the marine copepod Acartia tonsa

Cited by 48 publications

References 17 publications

Interactions between Zooplankton and Crude Oil: Toxic Effects and Bioaccumulation of Polycyclic Aromatic Hydrocarbons

Interactions between Zooplankton and Crude Oil: Toxic Effects and Bioaccumulation of Polycyclic Aromatic Hydrocarbons

Bioaccumulation of 14C-PCB 101 and 14C-PBDE 99 in the marine planktonic copepod Calanus finmarchicus under different food regimes

Bioavailability and trophic transfer of humic-bound copper from bacteria to zooplankton

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