Survival, reproduction, and arsenic body burdens in Chironomus riparius exposed to arsenate and phosphate

Mogren, Christina L.; Kiparski, Guntram R. von; Parker, David R.; Trumble, John T.

doi:10.1016/j.scitotenv.2012.03.009

Cited by 19 publications

(18 citation statements)

References 34 publications

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“…Digestion and analysis of the NIST oyster tissue validated the protocol used to recover and analyze arsenic from the insect tissues with recoveries from the T. a. sinensis , T. haemorrhoidale , and B. scimitra digestions of 102±3.67%, 105±3.07%, and 110±1.92%, respectively. These values are all in agreement with previously published recovery values [31]. ICP-OES analysis of the mosquito rearing water and the water B. scimitra were reared in revealed that actual arsenic concentrations were within 7% agreement of the target concentration of 1000 µg l −1 in the arsenic treatments.…”

Section: Resultssupporting

confidence: 90%

“…Arsenic-treated water contained 1000 µg l −1 of sodium hydrogen arsenate heptahydrate, 99.998% (Sigma-Aldrich, St. Louis, MO, USA). This concentration was chosen because it represents a high yet still ecologically relevant concentration of arsenic [11], [31]. Pans were kept in an environmental rearing chamber under a 16∶8 L:D cycle at 28.0±0.25°C, and larvae were fed a mixture of a 3∶1 (wt:wt) ground mouse chow (mouse/rat diet, Harlan/Teklad, Madison, WI, USA) and brewer’s yeast (MP Biochemicals, Aurora, OH, USA) as a 10% suspension in deionized water.…”

Section: Methodsmentioning

confidence: 99%

“…All of the arsenic analyses were conducted on entire individual insects using a previously described method [31], [33]. Briefly, samples underwent a two step microwave digestion process with sodium persulfate, sodium fluoride (Sigma-Aldrich, St. Louis, MO, USA), and nitric acid in HP-500 Teflon PFA digestion vessels (CEM Corporation, Matthews, NC, USA).…”

Section: Methodsmentioning

confidence: 99%

“…Arsenic concentrations were detected using a Perkin-Elmer (Waltham, MA, USA) Analyst 800 Atomic Absorption Spectrophotometer. The minimum detection limit of the HGAAS was previously determined to be 0.050 µg l −1 for arsenic [31]. Simultaneous digestions of oyster tissue standard reference material (NIST 1566b, Gaithersberg, MD, USA) and reagent blanks were conducted to validate the arsenic concentrations recovered in the unknown insect tissues.…”

Section: Methodsmentioning

confidence: 99%

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Trophic Transfer of Arsenic from an Aquatic Insect to Terrestrial Insect Predators

et al. 2013

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The movement of energy and nutrients from aquatic to terrestrial ecosystems can be substantial, and emergent aquatic insects can serve as biovectors not only for nutrients, but also for contaminants present in the aquatic environment. The terrestrial predators Tenodera aridifolia sinensis (Mantodea: Mantidae) and Tidarren haemorrhoidale (Araneae: Theridiidae) and the aquatic predator Buenoa scimitra (Hemiptera: Notonectidae) were chosen to evaluate the efficacy of arsenic transfer between aquatic and terrestrial environments. Culex tarsalis larvae were reared in either control water or water containing 1000 µg l−1 arsenic. Adults that emerged from the control and arsenic treatments were fed to the terrestrial predators, and fourth instar larvae were fed to the aquatic predator reared in control or arsenic contaminated water. Tenodera a. sinensis fed arsenic-treated Cx. tarsalis accumulated 658±130 ng g−1 of arsenic. There was no significant difference between control and arsenic-fed T. haemorrhoidale (range 142–290 ng g−1). Buenoa scimitra accumulated 5120±406 ng g−1 of arsenic when exposed to arsenic-fed Cx. tarsalis and reared in water containing 1000 µg l−1 arsenic. There was no significant difference between controls or arsenic-fed B. scimitra that were not exposed to water-borne arsenic, indicating that for this species environmental exposure was more important in accumulation than strictly dietary arsenic. These results indicate that transfer to terrestrial predators may play an important role in arsenic cycling, which would be particularly true during periods of mass emergence of potential insect biovectors. Trophic transfer within the aquatic environment may still occur with secondary predation, or in predators with different feeding strategies.

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Section: Resultssupporting

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Trophic Transfer of Arsenic from an Aquatic Insect to Terrestrial Insect Predators

et al. 2013

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“…Mogren et al . () found significant reductions in the reproductive capacity of Chironomus riparius (Diptera: Chironomidae) females, as well as an increase in the time between male and female emergence. Martinez et al .…”

Section: Discussionmentioning

confidence: 99%

Tolerance to individual and joint effects of arsenic and Bacillus thuringiensis subsp. israelensis or Lysinibacillus sphaericus in Culex mosquitoes

2013

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Arsenic contamination of global water supplies has come to the forefront in policy decisions in recent decades. However, the effects of arsenic on lower trophic levels of insects inhabiting contaminated ecosystems are not well understood. One approach to document both acute and sublethal effects of toxicants like arsenic is to assay them in combination with microbial pathogens to evaluate shifts in survival curves of the test organisms. Larvae of Culex quinquefasciatus and Culex tarsalis were reared in water containing 0 or 1 000 μg/L of arsenate or arsenite. Fourth instars were then exposed to a range of doses of Bacillus thuringiensis subsp. israelensis (Bti) or Lysinibacillus sphaericus (Ls), with shifts in lethal concentrations determined. Arsenic accumulation in 4th instars was also quantified, and a relative growth index (RGI) calculated for the treatments and compared to controls. Larvae of both species accumulated between 4 447 ± 169 ng As/g and 6 983 ± 367 ng As/g, though RGI values indicated accumulation did not affect growth and development. In all cases, the LC50 's and LC90 's of Cx. quinquefasciatus exposed jointly with arsenic and Bti/Ls were higher than Cx. tarsalis. Cx. tarsalis reared in arsenite showed a significant reduction in their Bti LC90 values compared to the control, indicating a sublethal effect of Bti. When exposed jointly with Ls, arsenite was more toxic than arsenate in Cx. tarsalis. Overall, these results indicate tolerance of these Culex species to arsenic exposures, and why this may occur is discussed.

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Is it justifiable to pool Chironomus species in trace element contamination studies?

Proulx

Hare

Dupré³

2018

Enviro Toxic and Chemistry

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Larvae of the insect Chironomus (Chironomidae: Diptera) have great potential for estimating the bioavailability of sedimentary trace elements because they are common in fine sediments and tolerate high concentrations of these contaminants. Their use as biomonitors is limited by the fact that they are difficult to identify as to species, and the species can differ in their trace element concentrations. To determine whether pooling species would compromise their use as trace element biomonitors, we identified species of Chironomus larvae collected from 22 lakes and measured their concentrations of 9 trace elements. We found that the concentrations of arsenic, barium, cobalt, copper, manganese, and nickel did not generally differ between sympatric Chironomus species, which indicates that they could be pooled for analyses of these trace elements. In contrast, we found that cadmium (Cd), selenium (Se), and zinc (Zn) concentrations differed between species living at the same site according to their feeding behavior, that is, Chironomus species feeding on oxic sediments tended to have higher Cd and Zn concentrations, whereas those feeding on deeper anoxic sediments had higher Se concentrations. Because Se and Zn concentrations in sympatric Chironomus species usually differed by only a factor of 2, separating species based on their feeding behavior might not be as crucial as for Cd if larval Se and Zn concentrations vary greatly from site to site. Environ Toxicol Chem 2019;38:145–159. © 2018 SETAC

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Survival, reproduction, and arsenic body burdens in Chironomus riparius exposed to arsenate and phosphate

Cited by 19 publications

References 34 publications

Trophic Transfer of Arsenic from an Aquatic Insect to Terrestrial Insect Predators

Trophic Transfer of Arsenic from an Aquatic Insect to Terrestrial Insect Predators

Tolerance to individual and joint effects of arsenic and Bacillus thuringiensis subsp. israelensis or Lysinibacillus sphaericus in Culex mosquitoes

Is it justifiable to pool Chironomus species in trace element contamination studies?

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