History and sensitivity comparison of two standard whole-sediment toxicity tests with crustaceans: the amphipod<i>Hyalella azteca</i>and the ostracod<i>Heterocypris incongruens</i>microbiotest

Cooman, Ward De; Blaise, C.; Janssen, Colin R.; Detemmerman, L; Elst, Raf; Persoone, Guido

doi:10.1051/kmae/2015011

Cited by 15 publications

(15 citation statements)

References 32 publications

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“…2021), crustacean-based bioassays (Thamnocephalus platyurus, H. incongruens) were more sensitive to the presence of high arsenic contents in soils than the Microtox microbial test. The higher sensitivity of H. incongruens was probably due to direct contact of the medium with the test organism, as the main route of exposure of H. incongruens is the oral route (Oleszczuk 2008;Cooman et al 2015;Szara et al 2020). On the other hand, the reason for reduced plant sensitivity in the Phytotoxkit assay may be the separation of plant roots from the test soil with filter paper, which is performed according to the test procedure (Van der Vliet et al Effect: no toxic (PE < 20%), low toxic (20% ≤ PE < 50%), toxic (50% ≤ PE < 100%), and very toxic (PE = 100%) 2012).…”

Section: Ecotoxicity Assessmentmentioning

confidence: 99%

Pollution indices and biotests as useful tools for the evaluation of the degree of soil contamination by trace elements

Wieczorek

Baran

2021

J Soils Sediments

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Purpose The aim of the study was the calculation of geochemical, ecological, and ecotoxicological indices for the assessment of risk resulting from the presence of trace metals in soil. Methods Around 320 soil points were determined for the tests by the regular square-grid method with a square side equal to 7.5 km. A total of 11 indices were used, including 6 geochemical indices, 1 index assessing potential ecological risk, and 4 indices assessing soil ecotoxicity. Results Two groups of elements were distinguished. The first one included Ni, Cr, and Cu. The calculated geochemical indices generally indicated their natural content and low degree of soil contamination with them and that the elements’ sources were connected with natural processes. The second group included Cd, Pb, and Zn. These elements occur in high concentrations in the studied area, which is influenced by both natural and anthropogenic factors. However, contamination with these elements is heterogeneous in the Małopolska and generally observed in its northwestern part. PCA showed that Cd and Pb had the greatest effect on the degree of soil contamination and pose the greatest potential threat to the soil environment. Heterocypris incongruens proved to be a more sensitive indicator of soil ecotoxicity compared to plant tests. The potential ecological risk index and biotests indicated that most of the soil samples had low potential ecological risk and low ecotoxicity. Conclusion The key to the effective assessment of soil contamination with trace elements is the combined use of geochemical, ecological, and ecotoxicological indices, which allows comprehensive monitoring of soil quality.

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Section: Ecotoxicity Assessmentmentioning

confidence: 99%

Pollution indices and biotests as useful tools for the evaluation of the degree of soil contamination by trace elements

Wieczorek

Baran

2021

J Soils Sediments

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“…The analysis of changes in luminescence was performed using a Microtox M500 Analyzer (Microbics Corporation, 1992 ). The mortality and growth inhibition of the Heterocypris incongruens crustacean after a 6-day contact with the sediment was measured with the use of the Ostracodtoxkit biotest (Ostracodtoxkit, 2001 ; Cooman et al, 2015 ).…”

Section: Methodsmentioning

confidence: 99%

“…According to current data, sediment chemical analyses should be complemented by ecotoxicological studies, as the large number of potentially toxic compounds in sediments makes chemical assessment time-consuming, costly and often impossible. In addition, neither bioavailability nor interaction between substances can be investigated by chemical methods (Wadhia & Thompson, 2007 ; Baran & Tarnawski, 2015 ; Cooman et al, 2015 ; Hise et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Mobility, ecotoxicity, bioaccumulation and sources of trace elements in the bottom sediments of the Rożnów reservoir

Szara-Bąk

Baran

Klimkowicz‐Pawlas

et al. 2021

Environ Geochem Health

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The aim of the study was to use of geochemical, chemical, ecotoxicological and biological indicators for a comprehensive assessment of ecological risks related to the mobility, ecotoxicity and bioavailability of trace elements in the bottom sediment of the Rożnów reservoir. The study found three elements deserving attention in the sediments: cadmium, nickel and chromium. Cadmium proved to be the most mobile and bioavailable, although the total cadmium content and geochemical indicators did not reveal any risk to organisms. Geochemical indicators showed that the sediments are contaminated with nickel and chromium, but both elements had a low bioaccumulation factor. Fractional analysis also revealed relatively low mobility of Cr and Ni and a higher potential risk of bioavailability for nickel. Most of the tested sediment samples had low toxicity in relation to the tested organisms. For H. incongruens, 11% of the samples were non-toxic, 50% of the samples had low toxicity, and 39% of the samples were toxic. For A. fischeri, no toxicity was found in 7% of the samples, low toxicity in 76% of the samples and toxicity in 17% of the sediment samples. The As, Cd, Cu content in the F1 fraction correlated significantly positively with the content of these metals in mussel tissues. Both biotesting and chemical analysis can reveal a potential risk to aquatic organisms. For a real assessment of the ecological risks associated with trace elements, it is necessary to use bioindicators taken from the environment and exposed to trace elements in situ.

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“… 40 Many campaigns entail tests with Heterocypris incongruens (seed shrimp). 41 − 44 H. incongruens is substantially more sensitive than midge larvae 45 and comparably sensitive (to heavy metals, NH 4 + ) with H. azteca , 41 but H. incongruens growth is particularly sensitive. 39 As Flanders is an urbanized coastal (maritime) and agricultural region, concentrations of organotins (antifouling endocrine disruptors) 46 − 48 and phosphate 49 , 50 could be elevated and particularly relevant for growth.…”

Section: Introductionmentioning

confidence: 94%

Bioconcentration of Organotin Cations during Molting Inhibits Heterocypris incongruens Growth

Nolte

Cooman

Vink

et al. 2020

Environ. Sci. Technol.

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The densely populated North Sea region encompasses catchments of rivers such as Scheldt and Meuse. Herein, agricultural, industrial, and household chemicals are emitted, transported by water, and deposited in sediments, posing ecological risks. Though sediment monitoring is often costly and time-intensive, modeling its toxicity to biota has received little attention. Due to high complexity of interacting variables that induce overall toxicity, monitoring data only sporadically validates current models. Via a range of concepts, we related bio-physicochemical constituents of sediment in Flanders to results from toxicity bioassays performed on the ostracod Heterocypris incongruens . Depending on the water body, we explain up to 90% of the variance in H. incongruens growth. Though variable across Flanders’ main water bodies, organotin cations and ammonia dominate the observed toxicity according to toxic unit (TU) assessments. Approximately 10% relates to testing conditions/setups, species variabilities, incoherently documented pollutant concentrations, and/or bio-physicochemical sediment properties. We elucidated the influence of organotin cations and ammonia relative to other metal(oxides) and biocides. Surprisingly, the tributylin cation appeared ∼1000 times more toxic to H. incongruens as compared to “single-substance” bioassays for similar species. We inferred indirect mixture effects between organotin, ammonia, and phosphate. Via chemical speciation calculations, we observed strong physicochemical and biological interactions between phosphate and organotin cations. These interactions enhance bioconcentration and explain the elevated toxicity of organotin cations. Our study aids water managers and policy makers to interpret monitoring data on a mechanistic basis. As sampled sediments differ, future modeling requires more emphasis on characterizing and parametrizing the interactions between bioassay constituents. We envision that this will aid in bridging the gap between testing in the laboratory and field observations.

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History and sensitivity comparison of two standard whole-sediment toxicity tests with crustaceans: the amphipodHyalella aztecaand the ostracodHeterocypris incongruensmicrobiotest

Cited by 15 publications

References 32 publications

Pollution indices and biotests as useful tools for the evaluation of the degree of soil contamination by trace elements

Pollution indices and biotests as useful tools for the evaluation of the degree of soil contamination by trace elements

Mobility, ecotoxicity, bioaccumulation and sources of trace elements in the bottom sediments of the Rożnów reservoir

Bioconcentration of Organotin Cations during Molting Inhibits Heterocypris incongruens Growth

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