Exposure of Chironomus riparius larvae (diptera) to lead, mercury and β-sitosterol: effects on mouthpart deformation and moulting

Vermeulen, Angelo; Liberloo, G; Dumont, Pierre; Ollevier, Frans; Goddeeris, Boudewijn

doi:10.1016/s0045-6535(00)00033-3

Cited by 49 publications

(40 citation statements)

References 28 publications

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“…A large number of pollutants have already been shown to affect larva development time. Among them, lead, mercury, and β-sitosterol increase larva development time of C. riparius [14]. This is the first time that U may be found to induce a development delay in C. riparius.…”

Section: Discussionmentioning

confidence: 72%

“…Temperature, pH, dissolved oxygen, and conductivity were measured daily. At the end of the assay (day 10) surviving larvae were collected and stored in 70% ethanol prior to analysis [9,14]. From each test beakers, at days 0, 3, 6 and 10, 10 mL of water samples for the analysis of U were collected, filtered (0.45 µm; cellulose acetate; Minisart®), immediately acidified (2% HNO 3 ) and stored at 4°C prior to analysis.…”

Section: Experimental Designmentioning

confidence: 99%

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Sublethal effects of sediment-associated uranium on Chironomus riparius (Diptera: Chironomidae) larvae

Dias¹,

Ksas²,

Camilleri³

et al. 2005

Radioprotection

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Abstract. In aquatic ecosystems, sediments constitute a reservoir for many of the most persistent chemicals that are introduced into surface waters. Sediments provide a habitat for various benthic macroinvertebrates, which could be exposed to sediment-associated chemicals both directly and via food intake. These organisms play an important role on the structure and the functioning of aquatic ecosystems. Among the non-biologically essential metals, data concerning uranium (U) fate and effects on freshwater benthic macroinvertebrates are sparse. The present study aimed at estimating effects of a chronic U exposure on Chironomus riparius larvae. To achieve this goal, a 10-d laboratory bioassay was performed exposing, via the sediment, first instar larvae to a gradient of U concentrations (0, 2.97, 6.07, 11.44, 23.84 µg U/g dry wt). Significant negative effects on mortality, development time and growth were detected at 6.07, 6.07 and 2.97 µg U/g dry wt, respectively. The results underlined a possible impact of U at the population level at environmentally occurring U concentrations. This study confirmed the need for more research on the role of U on benthic macroinvertebrate.

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Section: Discussionmentioning

confidence: 72%

Section: Experimental Designmentioning

confidence: 99%

Sublethal effects of sediment-associated uranium on Chironomus riparius (Diptera: Chironomidae) larvae

Dias¹,

Ksas²,

Camilleri³

et al. 2005

Radioprotection

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“…As C. sancticaroli individuals used in our morphological analysis did not come into contact with chemical pollutants, we cannot draw a connection between the division of the central tooth and chemical exposure. However, since our experimental population was maintained under laboratory conditions for about two years, we cannot rule out the possibility of inbreeding, which has been reported also as a possible cause of high levels of deformities in cultured chironomids (BIRD et al 1995, BIRD 1997, VERMEULEN et al 2000a, DIAS et al 2008.…”

Section: Discussionmentioning

confidence: 98%

Setting the reference for the use of Chironomus sancticaroli (Diptera: Chironomidae) as bioindicator: Ontogenetic pattern of larval head structures

Rebechi¹,

Navarro-Silva²

2012

Zoologia (Curitiba)

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“…The taxon Chironomus has been shown to be sensitive to heavy metals (Vermeullen et al, 2000) and can be used as an indicator of contamination due to deformation of its mentum caused by exposition. One deformed C. anthracinus-type has been found in level 2-3 cm (ca.…”

Section: Chironomidsmentioning

confidence: 99%

Using paleolimnology to find restoration solutions: the case of Lake Muzzano, Switzerland

Larocque‐Tobler¹,

Pla‐Rabès

2015

Front. Ecol. Evol.

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Lake Muzzano (45 • 59 ′ 50 ′′ N 8 • 55 ′ 41 ′′ E, 337 m a.s.l.) is a hyper-eutrophied lake located in the Tessin region of Switzerland. Almost every year, algal blooms (Microcystis) cover the lake with a thickness of 1-2 cm. These blooms associated with periods of anoxia in summer have led to fish kills in 1967 and 1994. In the hope of avoiding these blooms, a bypass bringing water away from the lake has been established in 1999. This solution was not adequate as blooms kept reoccurring. Sediment removal was then proposed by the Tessin Canton as a possible remediation technique and The L.A.K.E.S Institute had a mandate in 2010 to study the lake (present and past state) to determine the reasons creating anoxia and algal blooms. The present state of the lake shows that anoxia is still occurring when the algal bloom covers the lake's surface. Subfossil diatom and chironomid analyses show that the baseline conditions were those found before 1922 AD when the lake was oligotrophic and supported a diversified community of chironomids suggesting good oxygenation. After 1922 AD, circulation to the lake was cut out and nutrients accumulated in the lake leading to anoxia and the establishment of Microcystis. Heavy metal analysis in the sediment shows that the concentration is above the national recommendation and thus sediment should not be removed or should be stored with hazardous material. Based on the present status of the lake and paleolimnological results, two solutions are proposed: to further decrease the nutrients coming in the lake (possibly using filtrating plants) followed by flushing to increase lake water circulation. Physical capping of the sediment to avoid exchange of heavy metals and phosphorus release at the water/sediment interface could also be envisaged once the two prime solutions are in place.

show abstract

Exposure of Chironomus riparius larvae (diptera) to lead, mercury and β-sitosterol: effects on mouthpart deformation and moulting

Cited by 49 publications

References 28 publications

Sublethal effects of sediment-associated uranium on Chironomus riparius (Diptera: Chironomidae) larvae

Sublethal effects of sediment-associated uranium on Chironomus riparius (Diptera: Chironomidae) larvae

Setting the reference for the use of Chironomus sancticaroli (Diptera: Chironomidae) as bioindicator: Ontogenetic pattern of larval head structures

Using paleolimnology to find restoration solutions: the case of Lake Muzzano, Switzerland

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